VLT ® 2800 Series Contents Introduction to VLT 2800 Software version High voltage warning These rules concern your safety Warning against unintended start Technology CE labelling Motor coils Ordering numbers for VLT 2800 200-240 V Ordering numbers for VLT 2800 380-480V PC Software tools Accessories for the VLT 2800 Control unit Manual initialisation Hand Auto Automatic motor tuning The LCP 2 Control unit, option Parameter selection Installation Mechanical dimensions Mechanical installation General informat
VLT ® 2800 Series Connection examples Use of internal PID-controller - closed loop process control Programming Operation & Display Setup configuration Load and Motor DC Braking References & Limits Handling of references Reference function Inputs and outputs Special functions PID functions Handling of feedback Enhanced Sleep Mode Serial communication for VLT 2800 Control Word according to FC protocol Status Word according to FC Profile Control word according to Fieldbus Profile Status word according to Prof
VLT ® 2800 Series Display readout Warnings/alarm messages Warning words, extended status words and Alarmwords General technical data Technical data, mains supply 1 x 220 - 240 V/3 x 200-240V Technical data, mains supply 3 x 380 - 480 V Available literature Supplied with the unit Index MG.27.E3.
VLT ® 2800 Series VLT 2800 Design Guide Software version: 3.1x This Design Guide can be used for all VLT 2800 Series frequency converters with software version 3.1x. The software version number can be seen from parameter 640. NB! This symbol indicates something that should be noted by the reader. Indicates a general warning. This symbol indicates a warning of high voltage. 4 MG.27.E3.
VLT ® 2800 Series The voltage of the frequency converter is dangerous whenever the converter is connected to mains. Incorrect fitting of the motor or frequency converter may cause damage to the equipment, serious injury or death. Consequently, it is essential to comply with the instructions in this manual as well as local and national rules and safety regulations. 7. Note that the frequency converter has more voltage inputs than L1, L2 and L3 when the DC bus terminals are used.
VLT ® 2800 Series Technology VLT 2800 control principle Control principle A frequency converter is an electronic unit which is able to infinitely variably control the rpm of an AC motor. The frequency converter governs the motor speed by converting the regular voltage and frequency from mains, e.g. 400 V / 50 Hz, into variable magnitudes. Today the frequency converter controlled AC motor is a natural part of all types of automated plants.
VLT ® 2800 Series Introduction to VLT 2800 way, the inverter and the condensers in the intermediate circuit are not overloaded, which would dramatically reduce the service life of the frequency converter. The frequency converter offers temperature protection as standard. If there is a thermal overload, this function cuts out the inverter.
VLT ® 2800 Series CE labelling What is CE labelling? The purpose of CE labelling is to avoid technical obstacles to trade within EFTA and the EU. The EU has introduced the CE label as a simple way of showing whether a product complies with the relevant EU directives. The CE label says nothing about the specifications or quality of the product.
VLT ® 2800 Series Order form Mains voltage VLT 2800 is available for two mains voltage ranges: 200-240 V and 380-480 V. Select whether the frequency converter is connected to a mains voltage of: - 1 x 220 - 240 V single-phase AC voltage - 3 x 200 - 240 V three-phase AC voltage - 3 x 380 - 480 V three-phase AC voltage Introduction to VLT 2800 This section makes it easier for you to specify and order a VLT 2800.
VLT ® 2800 Series 3 x 380 - 480 Volt mains voltage Type 2805 2807 2811 2815 2822 2830 2840 2855 2875 2880 2881 2882 Typical shaft output PINV. [kW] 0.55 0.75 1.1 1.5 2.2 3.0 4.0 5.5 7.5 11 15 18.5 [HP] 0.75 1.0 1.5 2.0 3.0 4.0 5.0 7.5 10.0 15 20 25 Max. constant output current IINV. Max. constant output power at 400 V SINV. [A] [kVA] 1.7 1.1 2.1 1.7 3.0 2.0 3.7 2.6 5.2 3.6 7.0 4.8 9.1 6.3 12.0 8.3 16.0 11.1 24 16.6 32 22.2 37.5 26.
Control unit The frequency converter is always supplied with an integral control unit. All displays are in the form of a six-digit LED display capable of showing one item of operating data continuously during normal operation. As a supplement to the display, there are three indicator lamps for voltage (ON), warning (WARNING) and alarm (ALARM). Most of the frequency converter's parameter Setups can be changed immediately via the integral control panel.
VLT ® 2800 Series Motor coils By fitting the motor coil module between the frequency converter and the motor it is possible to use up to 200 metres of unscreened/unarmoured motor cable or 100 metres of screened/armoured motor cable. The motor coil module has an enclosure of IP 20 and can be installed side-by-side. NB! To have long motor cables and still comply with EN55011-1A, motor coil and EMC filter for long motor cables are needed.
VLT ® 2800 Series Technical data for VLT 2803–2875 RFI 1B filter Max. cable length (screened/armoured) 200-240 V Max. cable length (screened/armoured) 380-480 V Enclosure Max. rated current Max. Voltage Max. voltage to earth Min. distance between VLT and RFI 1B filter Min. distance above and below RFI 1B filter Mounting Dimensions H x W x D (mm) Weight By fitting an RFI 1B filter module between the mains supply and the VLT 2800, the VLT 2800 complies with the EMC norm EN 55011-1B.
VLT ® 2800 Series RFI 1B/LC filter The RFI 1B/LC filter contains both an RFI module that complies with EN 55011-1B and an LC filter that reduces the acoustic noise. LC filter Installation of thermistor (PTC) The RFI 1B/LC filter has an integral thermistor (PTC), which is activated if an overtemperature arises. The frequency converter can be programmed to stop the motor and activatee an alarm via a relay output or a digital output if the thermistor is activated.
VLT ® 2800 Series RFI 1B/LC filter Technical data for VLT 2803–2875 RFI 1B/LC filter Max. cable length (screened/armoured) 380-480 V Enclosure Max. rated current Max. voltage Max. voltage to earth Min. distance between VLT and RFI 1B/LC filter Min. distance above and below RFI 1B/LC filter Mounting Dimensions 195N3100 4.0 A H x W x D (mm) Dimensions 195N3101 9.1 A H x W x D (mm) Weight 195N3100 4.0 A Weight 195N3101 9.1 A MG.27.E3.
VLT ® 2800 Series Ordering numbers for VLT 2800 200-240 V 0,37 kW Unit RFI R1 R1 R1 R1 R1 R1 ST SB ST SB ST SB ST SB ST SB ST SB 0,55 kW Unit RFI R1 R1 R1 R1 R1 R1 ST SB ST SB ST SB ST SB ST SB ST SB 0,75 kW Unit RFI R1 R1 R1 R1 R1 R1 16 ST SB ST SB ST SB ST SB ST SB ST SB VLT 2803 1 x 220-240 V / 3 x 200-240 V Profibus DeviceNet Ordering no.
VLT ® 2800 Series - ST ST ST 3,7 kW Unit RFI R1 R1 R1 R1 R1 R1 ST SB ST SB ST SB ST SB ST SB ST SB VLT 2840 PD2 1 x 220-240 V / 3 x 200-240 V Ordering no. Profibus DP1) DeviceNet 3 MBits/s 178F5170 178F5171 ✓ 178F5172 ✓ VLT 2840 3 x 200-240 V Profibus DP1) DeviceNet 3 MBits/s ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ Ordering no. 195N0073 195N0074 195N0075 195N0076 195N0077 195N0078 195N0079 195N0080 195N0081 195N0082 195N0083 195N0084 ST: Standard unit. SB: Standard unit with integral brake.
VLT ® 2800 Series 4,0 kW Unit RFI R1 R1 R1 R1 R1 R1 ST SB ST SB ST SB ST SB ST SB ST SB 5,5 kW Unit RFI R1 R1 R1 R1 R1 R1 ST SB ST SB ST SB ST SB ST SB ST SB 7,5 kW Unit RFI R1 R1 R1 R1 R1 R1 ST SB ST SB ST SB ST SB ST SB ST SB 11 kW Unit RFI R3 R3 ST SB ST SB R3 R3 R3 R3 ST SB ST SB ST SB ST SB 18 VLT 2840 3 x 380-480 V Profibus DP1) DeviceNet 3 MBit/s ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ VLT 2855 3 x 380-480 V Profibus DP1) DeviceNet 3 MBit/s ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ VLT 2875 3 x 380-480 V Profibus DP1) DeviceNet 3 MBit/s ✓
Introduction to VLT 2800 VLT ® 2800 Series MG.27.E3.
VLT ® 2800 Series 20 MG.27.E3.
VLT ® 2800 Series • Future developed drives will be supported MCT 10 Set-up Software support Profibus DP-V1 via a Master class 2 connection. It makes it possible to on line read/write parameters in a frequency converter via the Profibus network. This will eliminate the need for an extra communication network. MCT 10 Set-up Software MCT 10 has been designed as an easy to use interactive tool for setting parameters in our frequency converters.
VLT ® 2800 Series Accessories for the VLT 2800 Type Motor coil RFI 1B filter RFI 1B/LC filter 4 A RFI 1B/LC filter 9.
VLT ® 2800 Series Dynamic braking With the VLT 2800 the dynamic braking quality in an application can be improved in two ways, either with the aid of brake resistors or AC braking. Danfoss has chosen a solution in which the brake resistor is not integrated into the frequency converter. This gives the user the following advantages: - The resistor's cycle time can be selected as required.
VLT ® 2800 Series 400 volt R REC = 200 volt R REC = 420139 If you select Danfoss' recommended braking resistor (RREC), you are certain that the braking resistance can generate a braking torque of 160% on the motor shaft. Ω Pmotor 105035 Ω Pmotor NB! The brake resistance selected should have an ohmic value no more than 10% lower than that recommended by Danfoss. If a lower brake resistance is selected there is a risk of overcurrent, which can destroy the unit.
VLT ® 2800 Series Continuous braking D.C. injection braking the motor. Please note: The current can not be read out from the display. Optimal braking using resistor Dynamic braking is useful from maximum speed down to a certain frequency. Below this frequency DC braking is to be applied as required. The most efficient way of doing this is by using a combination of dynamic and DC braking. See the illustration.
VLT ® 2800 Series Brake cable Max. length [m]: 20 m The connection cable to the brake resistor must be screened/armoured. Connect the screen to the conductive backplate at the frequency converter and to the brake resistor metal cabinet by means of cable clamps. NB! If Danfoss brake resistors are not used, it must be ensured that the brake resistor is induction-free.
VLT ® 2800 Series Brake resistors Flatpack brake resistors IP 65 Pmotor [kW] 0.37 0.55 0.75 1.10 1.50 2.20 3.70 0.55 0.75 1.10 1.50 2.20 3.00 3.00 4.
VLT ® 2800 Series Dimensions of Flatpack brake resistors 100 W 200 W 28 MG.27.E3.
VLT ® 2800 Series [+] / [-] are used for selecting parameters and for changing parameter values. These keys are also used in Display mode for selecting the display of an operating value. The [QUICK MENU] + [+] keys must be pressed at the same time to give access to all parameters. See Menu mode. [STOP/RESET] is used for stopping the connected motor or for resetting the frequency converter after a trip. Can be selected as Active [1] or Not active [0] via parameter 014 Local stop/reset.
VLT ® 2800 Series Display readout states Quick menu Display mode In normal operation, one item of operating data can be displayed continuously at the operator's own choice.
VLT ® 2800 Series Reset • Coasting Stop Inverse • Reset and Coasting Stop Inverse • Quick Stop Inverse • Stop Inverse • Reversing • DC Braking Inverse • Setup Select LSB • Setup Select MSB • Thermistor • Precise Stop Inverse • Precise Stop/Start • Jog • Stop Command Via Serial Comm. Automatic motor tuning Automatic motor tuning (AMT) is performed as follows: 1. In parameter 107 Automatic motor tuning select data value [2]. “107” will now flash, and “2” will not flash. 2.
VLT ® 2800 Series The LCP 2 Control unit, option frequency converter parameter Setups can be changed immediately from the control panel, unless this function has been programmed as Locked [1] via parameter 018 Lock for data changes. Control keys for parameter Setup The control keys are divided into functions, in such a way that the keys between the display and the indicator lamps are used for parameter Setup, including selection of the display's view mode during normal operation.
VLT ® 2800 Series Display mode VAR 1.1 VAR 1.2 VAR 1.3 NB! The voltage indicator lamp is activated when voltage is connected to the frequency converter. Local control [STOP/RESET] is used for stopping the motor connected or for resetting the frequency converter after a drop-out (trip). Can be set to active or inactive via parameter 014 Local stop. If stop is activated Display line 2 will flash.
VLT ® 2800 Series Three operating data items can be shown in the first display line, and one operating variable can be shown in the second display line. Is programmed via parameters 009, 010, 011 and 012 Display readout . Display modes The LCP control unit has different display modes, which depend on the mode selected for the frequency converter. Display mode I: This display mode is standard after startup or initialisation. FREQUENCY 50.
VLT ® 2800 Series • Using the [QUICK MENU] key, it is possible to get access to the most important parameters of the frequency converter. After programming, the frequency converter is in most cases ready for operation. Scroll through the Quick menu using the [+ / -] keys and change the data values by pressing [CHANGE DATA] + [OK]. The Menu mode allows choosing and changing all parameters as required. However, some parameters will be "shaded off", depending on the choice in parameter 100 Configuration .
VLT ® 2800 Series FREQUENCY 50.0 Hz SETUP 1 130 START FREQUENCY 09.0 HZ The selected digit can then be changed infinitely variably using the [+ / -] keys: FREQUENCY 50.0 Hz SETUP 1 130 START FREQUENCY 10.0 HZ The chosen digit is indicated by the digit flashing. The bottom display line shows the data value that will be entered (saved) when signing off with [OK]. Manual initialisation NB! Manual initialisation is not possible on the LCP 2 175N0131 control unit.
VLT ® 2800 Series Mechanical dimensions The drawings below describe the mechanical dimensions. All dimensions are in mm. VLT 2822 220 - 240 V, PD2 VLT 2840 200-240 Volt VLT 2855-2875 380-480 Volt NB! Please note that all filter options must be vertically mounted. Installation VLT 2803-2815 200-240 Volt VLT 2805-2815 380-480 Volt VLT 2822 200-240 Volt VLT 2822-2840 380-480 Volt MG.27.E3.
VLT ® 2800 Series Motor coils (195N3110) Terminal cover The drawing below gives the dimensions for NEMA 1 terminal covers for VLT 2803-2875. Dimension 'a' depends on the unit type. RFI 1B filter (195N3103) IP 21 solution 38 MG.27.E3.
VLT ® 2800 Series Dimensions Type VLT 2803-2815 200-240 V, VLT 2805-2815 380-480 V VLT 2822 200-240 V, VLT 2822-2840 380-480 V VLT 2840 200-240 V, VLT 2822 PD2, TR1 2855-2875 380-480 V TR1 2880-2882 380-480 V, VLT 2840 PD2 Code number 195N2118 195N2119 195N2120 47 47 47 A 80 95 145 B 170 170 170 C 195N2126 47 205 245 Installation EMC filter for long motor cables 192H4719 192H4720 MG.27.E3.
VLT ® 2800 Series 192H4893 40 MG.27.E3.
VLT ® 2800 Series Mechanical installation Please pay attention to the requirements that apply to installation. Side-by-side All VLT 2800 units can be installed side-by-side and in any position, as the units do not require ventilation on the side. Installation The frequency converter is cooled by means of air circulation. For the unit to be able to release its cooling air, the minimum free distance above and below the unit must be minimum 100 mm .
VLT ® 2800 Series High voltage warning The voltage of the frequency converter is dangerous whenever the equipment is connected to mains. Incorrect installation of the motor or frequency converter may cause damage to the equipment, serious injury or death. Comply with the instructions in this manual, as well as national and local rules and safety regulations. Touching the electrical parts may be fatal - even after the equipment has been disconnected from mains: Wait at least 4 minutes for current dissipate.
VLT ® 2800 Series Installation control card cannot exceed approx. 100 volt with respect to chassis due to a voltage limiting circuitry. The terminals are protected against direct hazardous access through barriers. MG.27.E3.
VLT ® 2800 Series EMC-correct electrical installation - It is important to ensure good electrical contact from the installation plate through the installation screws to the metal cabinet of the frequency converter. - Use starwashers and galvanically conductive installation plates. - Do not use unscreened/unarmoured motor cables in the installation cabinets. General points to be observed to ensure EMC-correct electrical installation.
VLT ® 2800 Series Use of EMC compliant cables ZT can be assessed on the basis of the following factors: - the contact resistance between the individual screen conductors. - Screen coverage, i.e. the physical area of the cable covered by the screen. Is often stated as a percentage and should be no less than 85%. - The screen type, i.e. braided or twisted pattern. A braided pattern or closed pipe is recommended.
VLT ® 2800 Series Earthing of screened/armoured control cables In general control cables must be screened/armoured, and the screen must be connected to the unit's metal cabinet with a cable clamp at each end. The drawing below shows the correct way to perform the earthing, and what to do when in doubt. 46 1. Correct earthing Control cables and cables for serial communication must be attached with cable clamps at both ends to ensure maximum possible electrical contact. 2.
VLT ® 2800 Series Installation Diagram * Integrated 1A RFI filter and brake is an option. ** VLT 2803-2815 200-240 V is not supplied with intermediate circuit coils. MG.27.E3.
VLT ® 2800 Series Electrical installation See also the section Brake Connection. VLT 2822 200-240 V, 2822-2840 380-480 V VLT 2803-2815 200-240 V, 2805-2815 380-480 V 48 MG.27.E3.
Installation VLT ® 2800 Series VLT 2840 200-240 V, VLT 2822 PD2, 2855-2875 380-480 V VLT 2880-2882 380-480 V, VLT 2840 PD2 Please note that the units will be supplied with two bottom plates; one for metric glands and one for conduits. MG.27.E3.
VLT ® 2800 Series Safety clamp 2803-2815, 200-240 2805-2815, 380-480 V. V, and VLT Pre-fuses If the galvanic isolation (PELV) between control terminals and high-voltage terminals is to be maintained, the accompanying safety clamp must be fitted to VLT Alternative fuses 380-500 V drives Bussmann Bussmann VLT 2800 E52273 E4273 28052820 28552875 28802882 For all unit types, external pre-fuses must be fitted in the mains supply to the frequency converter.
VLT ® 2800 Series No. 96 97 98 W Motor voltage 0-100% of mains voltage. 3 wires of motor U1 V1 W1 W2 U2 V2 6 wires out of motor, Delta connected U1 V1 W1 6 wires out of motor, Star connected U2, V2, W2 to be interconnected separely (optional terminal block) U V No. PE Earth connection See Technical data for correct dimensioning of cable cross-section. All types of three-phase asynchronous standard motors can be connected to a frequency converter.
VLT ® 2800 Series Parallel connection of motors NB! If an unscreened/unarmoured cable is used, some EMC requirements are not complied with, see EMC test results in the Design Guide. The frequency converter is able to control several motors connected in parallel. If the motors are to have different rpm values, use motors with different rated rpm values. Motor rpm is changed simultaneously, which means that the ratio between the rated rpm values is maintained across the range.
VLT ® 2800 Series Motor thermal protection The electronic thermal relay in UL-approved frequency converters has received the UL-approval for single motor protection, when parameter 128 Motor thermal protection has been set for ETR Trip and parameter 105 Motor current, IM, N has been programmed to the rated motor current (see motor nameplate). Brake connection No. 81 82 Brake resistor R- R+ terminals Installation The connection cable to the brake resistor must be screened/armoured.
VLT ® 2800 Series Load sharing Load sharing provides the facility to connect several frequency converters' DC intermediate circuits. This requires that the installation is extended using extra fuses and AC coils (see drawing below). For load sharing parameter 400 Brake function must be set to Load sharing [5]. Use 6.3 mm Faston Plugs for DC (Load Sharing). Contact Danfoss or see instructions no. MI.50.NX.02 for further information. No.
VLT ® 2800 Series Electrical installation, control cables chassis by means of a clamp. Normally, the screen must also be connected to the chassis of the controlling unit (use the instructions for the unit in question). In connection with very long control cables and analogue signals, in rare cases depending on the installation, 50/60 Hz earth loops may occur because of noise transmitted from mains supply cables.
VLT ® 2800 Series Tightening torques, control cables NB! Please note that the cable jacket for the relay must cover the first row of control card terminals - otherwise the galvanic isolation (PELV) cannot be maintained. Max. cable diameter: 4 mm. See drawing. Control wires must be connected with a tightening torque of 0.22-0.25 Nm.
VLT ® 2800 Series Connection examples Speed up/down Start/stop Speed up/down using terminals 29/33. Start/stop using terminal 18 and coasting stop using terminal 27. Par. 302 Digital input = Start [7] Par. 302 Digital input = Start [7] Par. 305 Digital input = Speed up [16] Par. 304 Digital input = Coasting stop inverted [2] Par. 307 Digital input = Speed down [17] Installation Par. 303 Digital input = Freeze reference [14] For Precise start/stop the following settings are made: Par.
VLT ® 2800 Series 4-20 mA reference 4-20 mA reference on terminal 60 and speed feedback signal on terminal 53. Par. 203 Reference range = Min. ref. - Max. ref. [0] Par. 204 Min. reference = - 50 Hz Par. 205 Max. reference = 50 Hz Par. 302 Digital input = Start [7] Par. 304 Digital input = Coasting stop inverted [2] Par. 308 Analogue input = Reference [1] Par. 309 Terminal 53, min. scaling = 0 Volt Par. 100 Configuration = Speed closed loop [1] Par. 310 Terminal 53, max. scaling = 10 Volt Par.
VLT ® 2800 Series Setup 2 contains the following preset references: Par. 215 Preset reference 1 = 40.00% Par. 216 Preset reference 2 = 50.00% Par. 217 Preset reference 3 = 70.00% Par. 218 Preset reference 4 = 100.00% This table shows what the output frequency is: Preset ref., msb 0 0 1 1 0 0 1 1 Preset ref., lsb 0 1 0 1 0 1 0 1 Selection of Setup 0 0 0 0 1 1 1 1 Output frequency [Hz] 2.5 5 10 17.5 20 25 35 50 Connection of mechanical brake Installation Use of the relay for 230V AC brake Par.
VLT ® 2800 Series 101 = Variable torque medium [3] If used with centrifugal pumps and fans.
VLT ® 2800 Series Operation & Display the [START] key. This cannot, however, override stop commands via the digital inputs (see parameter 013 Local control). 2. the [STOP/RESET] and [JOG] keys, on the condition that these are active. 3. the [FWD/REV] key, on the condition that is has been selected as active in parameter 016 Local reversing, and that parameter 013 Local control is set at Local control and open loop [1] or Local control as parameter 100 [3].
VLT ® 2800 Series Setup configuration There is a choice of four Setups (parameter Setups), which can be programmed independently of one another. The active Setup can be selected in parameter 004 Active Setup. When an LCP 2 control unit is connected, the active Setup number will be appear in the display under “Setup”. It is also possible to preset the frequency converter to Multisetup, so that it is possible to shift Setups using the digital inputs or serial communication.
VLT ® 2800 Series Setup copying (SETUP COPY) Value: No copying (NO COPY) [0] Copy to Setup 1 from # (COPY TO SETUP 1) [1] Copy to Setup 2 from # (COPY TO SETUP 2) [2] Copy to Setup 3 from # (COPY TO SETUP 3) [3] Copy to Setup 4 from # (COPY TO SETUP 4) [4] Copy to all Setups from # (copy to all) [5] Function: You can copy from the selected active Setup in parameter 005 Programming setup to the selected Setup or Setups in this parameter.
VLT ® 2800 Series (Motor voltage [V]) Reference [unit] gives the resulting reference with unit Hz in Open loop. In Closed loop the reference unit is selected in parameter 416 Process units. DC link voltage [V] (DC link voltage [V]) [12] Thermal load motor [%] (Motor thermal [%]) [13] Thermal load [%] (FC. thermal[%]) [14] Feedback [unit] gives the resulting signal value using the unit/scaling selected in parameter 414 Minimum feedback, FBLOW , 415 Maximum feedback, FBHIGH and 416 Process units.
VLT ® 2800 Series Heatsink temp.[°C] gives the present heatsink temperature of the frequency converter. The cut-out limit is 90-100°C, while cutting back in occurs at 70 ± 5°C. Alarm word [Hex] gives one or several alarms in hex code. See Serial communication in the Design Guide for further information. Control word [Hex] gives the control word for the frequency converter. See Serial communication in the Design Guide for further information. Warning word [Hex] gives one or several warnings in hex code.
VLT ® 2800 Series In order to enable a shift to Local not active [0], parameter 002 Local/remote operation must be set to Remote operation [0]. Local control and open loop [1] is used if the motor speed is to be set via parameter 003 Local reference. When this choice is made, parameter 100 Configuration automatically shifts to Speed regulation, open loop [0].
VLT ® 2800 Series Local reversing (LOCAL REVERSING) Value: Not active (DISABLE) [0] Active (ENABLE) [1] Function: In this parameter you can select/deselect the reversing function on the LCP control panel. The key can only be used if parameter 002 Local/remote operation is set to Local operation [1] and parameter 013 Localcontrol to Local control, open loop [1] or Local control as parameter 100 [3]. Description of choice: If Disable [0] is selected in this parameter, the [FWD/ REV] key will be disabled.
VLT ® 2800 Series 020 Hand operation (HAND OPERATION) Value: Not active (DISABLE) [0] Active (ENABLE) [1] Function: In this parameter you can select whether it should be possible or not to switch between Auto- and Hand mode. In Auto mode the frequency converter is controlled by external signals whereas the frequency converter in Hand mode is controlled via a local reference directly from the control unit.
VLT ® 2800 Series 101 Configuration Selection of configuration and torque characteristics has an effect on which parameters can be seen in the display. If Open loop [0] is selected, all parameters relating to PID regulation will be filtered out. This means that the user only sees the parameters that are relevant for a given application.
VLT ® 2800 Series Description of choice: Select a value that corresponds to the nameplate data on the motor, regardless of the frequency converter's mains voltage. 104 Motor frequency fM,N (MOTOR FREQUENCY) Value: 24-1000 Hz Select Special motor mode [8], if a special U/f setting is needed that is to be adapted to the present motor. The break points are set in parameters 423-428 Voltage/frequency .
VLT ® 2800 Series 107 Automatic motor tuning, AMT When using the AMT function the following points should be observed: - For AMT to be able to define the motor parameters as well as possible, the correct type plate data for the motor connected to the frequency converter must be keyed into parameters 102 to 106. - Alarms will appear in the display if faults arise during tuning of the motor.
VLT ® 2800 Series 1. Use the factory settings of RS which the frequency converter itself chooses on the basis of the motor nameplate data. 2. The value is stated by the motor supplier. 3. The value is obtained through manual measurements: RS can be calculated by measuring the resistance RPHASE-PHASE between two phase terminals. Where RPHASE-PHASE is lower than 1-2 Ohms (typical for motors > 5.5 kW, 400 V), a special Ohm-meter should be used (Thomson-bridge or similar). RS = 0.5 x RPHASE-PHASE . 4.
VLT ® 2800 Series High start torque (High start torq.) Value: 0.0 - 0.5 sec. 0.0 sec. Function: To ensure a high start torque approx. 1.8 x IINV. can be permitted for max. 0.5 sec. The current is, however, limited by the frequency converter's (inverter's) safety limit. 0 sec. corresponds to no high start torque. Description of choice: Set the necessary time for which a high start torque is required. 120 Start delay (START DELAY) Value: 0.0 - 10.0 sec. 0.0 sec.
VLT ® 2800 Series DC Braking 122 Function at stop (FUNCTION AT STOP) Value: Coasting (COAST) [0] DC hold (DC HOLD) [1] Function: This is where to choose the function of the frequency converter after the output frequency has become lower than the value in parameter 123 The min. frequency for activation of function at stop or after a stop command and when the output frequency has been ramped down to 0 Hz.
VLT ® 2800 Series Thermal motor protection (MOT.
VLT ® 2800 Series Function: Initial voltage is active for the time set in parameter 120 Start delay , after a start command. This parameter can be used for example for lifting/dropping applications (conical anchor motors). Description of choice: Set the required voltage necessary to cut out the mechanical brake.
VLT ® 2800 Series 135 value of the max. DC hold voltage, which depends on the choice of motor. U/f-ratio (U/f RATIO) Value: 0.00 - 20.00 at Hz Depends on unit Function: This parameter enables a shift in the ratio between output voltage (U) and output frequency (f) linearly, so as to ensure correct energizing of the motor and thus optimum dynamics, accuracy and efficiency.
VLT ® 2800 Series 142 Leakage reactance XL NB! If Always switched off [2] is selected in combination with high switch frequency, long motor cables or high output power, the frequency converter's life span is reduced. (LEAK. REACTANCE) Value: 0.000 - XXX,XXX Ω Depends on choice of motor XL is sum of rotor and stator leakage reactance. Function: After setting of parameters 102-106 Nameplate data, a number of adjustments of various parameter is made automatically, including the leakage reactance XL.
VLT ® 2800 Series Programming ample for lifting/lowering operations or synchronous motors. It is an advantage that the motor and the frequency converter are always synchronized. MG.27.E3.
VLT ® 2800 Series References & Limits 200 201 Output frequency low limit, fMIN (MIN OUTPUT FREQ) Output frequency range Value: 0.0 - fMAX (OUT FREQ.
VLT ® 2800 Series Handling of references Handling of references is described in the block diagram below. The block diagram shows how a change in one parameter can affect the resulting reference. Remote controlled references are defined as: - External references, such as analogue inputs 53 and 60, pulse references via terminal 33 and references from serial communication. - Preset references. It is possible to have both references and external references simultaneously.
VLT ® 2800 Series 203 Reference range Maximum reference, RefMAX 205 (REFERENCE RANGE) (max.reference) Value: Min. reference - Max reference (min - max) [0] -Max. reference - Max. reference (-max - +max) [1] Function: In this parameter you select whether the reference signal must be positive or whether it can be both positive and negative. The minimum limit may be a negative value, unless in parameter 100 Configuration a selection has been made of Speed regulation, closed loop.
VLT ® 2800 Series 209 Ramp-up time 2 (ramp up time 2) Value: 0.02 - 3600.00 sec. 3.00 sec (VLT 2803-2875) 10.00 sec (VLT 2880-2882) Function: See description of parameter 207 Ramp-up time 1. Ramp-up time 1 (ramp-up time 1) Value: 0.02 - 3600.00 sec 3.00 sec (VLT 2803-2875) 10.00 sec (VLT 2880-2882) Function: The ramp-up time is the acceleration time from 0 Hz to the rated motor frequency fM,N (parameter 104 Motor frequency, fM,N ).
VLT ® 2800 Series The jog ramp time starts if a jog-signal is given via the LCP control panel, one of the digital inputs or the serial communication port. Description of choice: Set the required ramp time. 212 Quick-stop ramp-down time (Q STOP RAMP TIME) Value: 0.02 - 3600.00 sec. 3.00 sec (VLT 2803-2875) 10.
VLT ® 2800 Series Reference function (Ref function) Value: Sum (sum) [0] Relative (relative) [1] External/preset (external/preset) [2] Function: It is possible to define how preset references are to be added to the other references; for this purpose, use Sum or Relative. It is also possible by using the External/preset to select whether a shift between external references and preset references is required.
VLT ® 2800 Series short periods at a time. After the load has been higher than IINV., it must be ensured that for a period the load is lower than IINV. Please note that if the current limit is set at a lower value than IINV., the acceleration torque will be reduced to the same extent. Description of choice: The output current's upper signal limit IHIGH must be programmed within the frequency converter's normal operating range. See drawing at parameter 223 Warning: Low current, ILOW .
VLT ® 2800 Series resulting reference. The signal outputs can be programmed to give a warning signal via terminal 46 and via the relay output. Description of choice: The output frequency's upper signal limit fHIGH must be programmed within the frequency converter's normal operating range. See drawing at parameter 223 Warning: Low current, ILOW . in Closed loop is programmed in parameter 416 Process units.
VLT ® 2800 Series Inputs and outputs Term. no. par. no. 181 302 191 303 27 304 29 305 33 307 Value: No function (NO OPERATION) [0] [0] [0] [0] Reset Coasting stop inverse Reset and coasting inverse (RESET) (MOTOR COAST INVERSE) (RESET AND COAST INV.
VLT ® 2800 Series Reset and coasting inverse are used to activate motor coast simultaneously with reset. Logical '0' means motor coast stop and reset. Reset is activated on the falling edge. Reversing and start is used for start/stop and for reversing with the same signal. No active start command is allowed at the same time. Acts as latch start reversing, provided latch start has been chosen for terminal 18. Is not active for Process regulation, closed loop.
VLT ® 2800 Series Term Term. Freeze ref/ .29 33 freeze outp. 0 0 1 1 1 0 1 0 1 1 1 1 Function No speed change Speed up Speed down Speed down Freeze reference can be changed even if the frequency converter has stopped. The reference will also be saved if the mains are disconnected. Catch-up/Slow-down is selected if the reference value is to be increased or reduced by a programmable percentage value set in parameter 219 Catch-up/Slowdown reference .
VLT ® 2800 Series Pulse counter start is used to start a counter stop sequence with a pulse signal. The pulse width must at least be 14 ms and not longer than the count period. See also parameter 343 and the instruction, MI28CXYY. 308 Terminal 53, analogue input voltage (AI [V]53FUNCT.) Value: No function (NO OPERATION) [0] Reference (reference) [1] Feedback (feedback) [2] Wobble (WOBB.
VLT ® 2800 Series signal. If reference signals are connected to more than one input, these reference signals must be added up. If one current feedback signal is connected, select Feedback [2] on terminal 60. Wobble [10] The delta frequency can be controlled by the analog input. If WOBB.DELTA FREQ is selected as analog input (par. 308 or par. 314) the value selected in par. 702 equals 100 % analog input. Example: Analog input = 4-20 mA, Delta freq. par. 702 = 5 Hz • 4 mA = 0 Hz and 20 mA = 5 Hz.
VLT ® 2800 Series An output signal is obtained, which is proportional to the feedback value in the interval Minimum feedback, FBMIN - Maximum feedback, FBMAX (parameter 414/415). Analogue output terminal 42 (AO 42 FUNCTION) Value: No function (NO OPERATION) [0] External reference min.-max. 0-20 mA (ref min-max = 0-20 mA) [1] External reference min.-max. 4-20 mA (ref min-max = 4-20 mA) [2] Feedback min.-max. 0-20 mA (fb min-max = 0-20 mA) [3] Feedback min.-max.
VLT ® 2800 Series Output current lower than IHIGH par. 224 (below current high) [14] on the inputs. The mains voltage lies within the voltage limits. Feedback higher than FBLOW par. 227 (above feedback low) [15] Alarm or warning, the output is activated by an alarm or warning. Feedback lower than FBHIGH par. 228 (under feedback high) [16] Current limit, the output current is higher than the value programmed in parameter 221 Current limit I LIM.
VLT ® 2800 Series Control word bit 11, is active if bit 11 is high on the Bus Communication. Pulse current (PULSE CURRENT) [28] Pulse power (PULSE POWER) [29] Sleep Mode, is active of the frequency is lower than 0.1 Hz.
VLT ® 2800 Series Is active if the frequency is lower than 0.1 Hz. 342 Terminal 46, max. pulse scaling (DO 46 MAX. PULS) Value: 150 - 10000 Hz 5000 Hz Function: This parameter is used for setting the pulse output signal's maximum frequency. Description of choice: Set the required frequency. 343 The counter function is activated (starts timing) at the flank of the start signal (when it changes from stop to start). Speed compensated stop.
VLT ® 2800 Series Programming NB! Only active for speed-compensated stop. MG.27.E3.
VLT ® 2800 Series Special functions 400 Brake function (Brake function) Value: Off (off) [0] Resistor brake (Resistor) [1] AC brake (AC Brake) [4] Load sharing (load sharing) [5] Factory setting depends on unit type. Function: Resistor brake [1] is selected if the frequency converter has an integral brake transistor and brake resistor is connected to terminals 81, 82. A higher intermediate circuit voltage is permitted during braking (generated operation) when a brake resistor is connected.
VLT ® 2800 Series 411 Switching frequency (Switch freq.) Value: 3000 - 14000 Hz (VLT 2803 - 2875) 4500 Hz 3000 - 10000 Hz (VLT 2880 - 2882) 4500 Hz Function: The set value determines the switching frequency of the inverter. If the switching frequency is changed, this may help to minimise possible acoustic noise from the motor. NB! The output frequency of the frequency converter can never assume a value higher than 1/10 of the switching frequency.
VLT ® 2800 Series 415 Maximum feedback, FBMAX gal/s (gal/s) [29] (Max. feedback) Ft3/s [30] Value: FBMIN - 100,000.000 1500.000 Function: See description of parameter 414 Minimum feedback, FBMIN . Description of choice: Set the value to be shown on the display when the maximum feedback has been obtained on the selected feedback input (parameter 308/314 Analogue inputs). 416 (ft3/s) Gal/min. (gal/min) [31] Ft3/min.
VLT ® 2800 Series The integrated PID regulator in the frequency converter has been optimised for use in process applications. This means that there are a number of special functions available in the frequency converter. Previously it was necessary to obtain a system to handle these special functions by installing extra I/O modules and programming the system. With the frequency converter the need to install extra modules can be avoided.
VLT ® 2800 Series iance changes the more powerful the differentiator's frequency contribution becomes. The differentiator's frequency contribution can therefore be limited in such a way that both a reasonable differentiation time for slow changes and an appropriate frequency contribution for quick changes can be preset. This is done using the speed regulation in parameter 420 Speed PID Differentiator gain limit and Process regulation in parameter 443 Process PID Differentiator gain limit.
VLT ® 2800 Series NB! Parameters 417-421 are only used, if in parameter 100 Configuration the selection made is Speed regulation, closed loop [1]. Speed PID proportional gain (SPEED PROP GAIN) Value: 0.000 (OFF) - 1.000 0.010 Function: Proportional gain indicates how many times the fault (deviation between the feedback signal and the setpoint) is to be amplified.
VLT ® 2800 Series Description of choice: Set the output voltage (U1) that is to match the first output frequency (F1), parameter 424 F1 frequency. 424 F1 frequency (F1 frequency) Value: 0.0 - par. 426 F2 frequency Par. 104 Motor frequency Function: See parameter 423 U1 voltage . Description of choice: Set the output frequency (F1) that is to match the first output voltage (U1), parameter 423 U1 voltage .
VLT ® 2800 Series Description of choice: Set the output voltage (U3) that is to match the third output frequency (F3), parameter 428 F3 frequency . 428 F3 frequency (F3 frequency) Value: Par. 426 F2 frequency 1000 Hz Par. 104 Motor frequency Function: See parameter 423 U1 voltage. Description of choice: Set the output frequency (F3) that is to match the third output voltage (U3), parameter 427 U3 voltage .
VLT ® 2800 Series 439 Process PID start frequency (PROC START VALUE) Value: fMIN - fMAX (parameter 201/202) Par. 201 Output frequency, low limit, fMIN Function: When the start signal comes, the frequency converter will react in the form of Open loop and will not change to Closed loop until the programmed start frequency is reached.
VLT ® 2800 Series 200 Output frequency range a selection has been of Clockwise only . Process PID lowpass filter time (proc filter time) Value: 0.02 - 10.00 Select OK - both directions [2] if the motor is able to rotate in both directions when cutting in. 0.02 Function: Noise in the feedback signal is dampened by a first order lowpass filter to reduce the noise's impact on the process regulation. This can be an advantage e.g. if there is a lot of noise on the signal.
VLT ® 2800 Series 452 are problems with overvoltage in the intermediate circuit. Controller range (pid contr. range) Value: 0 - 200 % 10 % Function: This parameter is only active if in parameter 100 Configuration the selection made is Speed regulation, closed loop. The controller range (bandwidth) limits the output from the PID controller as a % of motor frequency fM,N. Description of choice: The required % value can be selected for motor frequency fM,N.
VLT ® 2800 Series Programming Description of choice: If Linear [0] is selected, the feedback signal and the feedback value will be proportional. If Square root [1] is selected, the frequency converter translates the feedback signal to a squared feedback value. MG.27.E3.
VLT ® 2800 Series Enhanced Sleep Mode The enhanced sleep mode has been developed to work under all conditions and to overcome problems when using pumps with flat pump curves or when suction pressure varies. Enhanced sleep mode provides excellent control for shutting down the pump at low flow, thus saving energy. If operating with constant pressure control in the SYSTEM, for instance a drop in the suction pressure will lead to an increase in frequency to maintain pressure.
VLT ® 2800 Series • Dry run protection. Shuts down at no or low flow and protects the motor and pump from overheating. Improved energy savings with Enhanced sleep mode. • Minimized risk of bacterial growth in drinking water because of insufficient motor cooling. • Easy commissioning. Only centrifugal pumps with radial impeller show a clear one to one relationship between flow and power.
VLT ® 2800 Series 464 Wakeup Pressure 467 (Wakeup Pressure) (Min. pump power) Value: Par. 204 RefMIN – par. 215 - 218 Setpoint 0 Function: When in Sleep mode the frequency converter will wake up when the pressure is below the Wakeup pressure for the time set in parameter 462 Enhanced sleep mode timer. Description of choice: Set an appropriate value for the system. The unit is set in parameter 416. 465 Minimum pump frequency Value: 0 – 500.
VLT ® 2800 Series Dry Run Time Out 484 Initial ramp (DRY RUN TIME OUT) Value: 5-30 sec. (INITIAL RAMP) 31 = OFF Function: If the power is below the no/low flow power curve, running at max speed for the time set in this parameter, the frequency converter will trip on Alarm 75: Dry run. In open loop operation the maximum speed does not necessarily need to be reached before tripping. Description of choice: Set the value to obtain the desired delay before tripping.
VLT ® 2800 Series The "Filled" Setpoint - parameter 486- is actually a setpoint limit. When minimum speed is reached, the pressure feedback is looked at, and the frequency converter begins to ramp to the "Filled" pressure setpoint at the rate established by Fill Rate parameter 485. The Fill Rate - parameter 485- is dimensioned in Units/ Second. The Units will be the units selected in parameter 416.
VLT ® 2800 Series Serial communication for VLT 2800 Protocols Telegram Structure All frequency converters are equipped with an RS 485 port as standard, which makes it possible to choose between two protocols.
VLT ® 2800 Series Telegram length (LGE) The telegram length is the number of data bytes plus the address byte ADR plus the data control byte BCC. The length of telegrams with 4 data bytes is: LGE = 4 + 1 + 1 = 6 bytes The length of telegrams with 12 data bytes is: LGE = 12 + 1 + 1 = 14 bytes The length of telegrams containing texts is 10+n bytes. 10 represents the fixed characters, while the 'n' is variable (depending on the length of the text).
VLT ® 2800 Series The structure of data blocks depends on the type of telegram. There are three types of telegram, and the type of telegram applies for both control telegrams (masterslave) and response telegrams (slavemaster). The three types of telegram are: - - - Parameter block, used to transfer parameters between master and slave. The data block is made up of 12 bytes (6 words) and also contains the process block.
VLT ® 2800 Series Parameter number (PNU) Bits no. 0-10 are used to transfer parameter numbers. The relevant parameter's function is defined in the parameter description in the section entitled Programming. Index Index is used together with the parameter number to read/ write-access parameters that have an index, e.g. parameter 615 Error code . The index is made up of 2 bytes, one lowbyte and one highbyte, but only the lowbyte is used as an index.
VLT ® 2800 Series Example - Selection of a data value: You wish to select kg/hour [20] in parameter 416 Process units. The value must be recalled after a mains failure, so it is written in EEPROM. PKE = E19F Hex - Write for parameter 416 Process units IND = 0000 Hex PWEHIGH = 0000 Hex PWELOW = 0014 Hex - Select data option kg/ hour [20] The response from the slave to the master will be: Conversion: Under the section entitled Factory Settings the various attributes of each parameter are displayed.
VLT ® 2800 Series Bit 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 Bit = 0 DC braking Coasting stop Quick stop Freeze outp. freq. Ramp stop Ramp 1 Data not valid No function No function Bit =1 Preset ref. lsb Preset ref.
VLT ® 2800 Series i.e. it is possible to turn off the control word if you do not wish to use it in connection with updating or reading parameters. Status Word according to FC Profile Bit 11, Relay 01: Bit 11 = “0” Relay not activated. Bit 11 = “1” Relay 01 activated, provided Control word bit has been chosen in parameter 323.
VLT ® 2800 Series Bit 06, Trip lock: Bit 06 = '0' means that the frequency converter is not trip locked. Bit 06 = '1' means that the frequency converter is trip locked and it cannot be reset before the mains supply has been removed. The trip can be reset either with 24 V external control back up or after the power is connected again. Bit 15 = '1' means that the temperature limit has been exceeded in either the motor, frequency converter or from a thermistor that is connected to a digital input.
VLT ® 2800 Series Bit 03, Coasting stop: See description under Control word according to FC protocol. Status word according to Profidrive protocol Bit 04, Quick stop: See description under Control word according to FC protocol. Bit 06, Ramp stop/start: See description under Control word according to FC protocol. Bit 07, Reset: See description under Control word according to FC protocol. Bit 08, Jog 1: Bit 08 = "1" means that the output frequency is determined by parameter 09 Bus jog 1.
VLT ® 2800 Series Bit 06, Start enable/start disable: Bit 06 = '1' after reset of a trip, after activation of OFF2 or OFF3 and after connection of mains voltage. Start disable is reset by setting Bit 00 in the control word to '0', and Bit 01, 02 and 10 are set to '1'. The frequency converter is to receive a start command and the reference is to be set to 50% (2000 Hex) of the reference range. Control word = 047F Hex • Start command. Reference = 2000 Hex • 50% reference.
VLT ® 2800 Series Example - Status word and current output frequency: The master receives a status message from the frequency converter that the current output frequency is 50% of the output frequency range. Par. 201 Output frequency low limit = 0 Hz Par. 202 Output frequency high limit = 50 Hz Programming Status word = 0F03 Hex. Output frequency = 2000 Hex • 50% of the frequency range, corresponding to 25 Hz. MG.27.E3.
VLT ® 2800 Series 502 Serial communication Coasting Stop (COASTING SELECT) 500 Address Value: (BUS ADDRESS) Value: Parameter 500 Protocol = FC protocol [0] 0 - 247 Parameter 500 Protocol = Metasys N2 [1] 1 - 255 Parameter 500 Protocol = MODBUS RTU [3] 1 - 247 1 1 1 Function: This parameter allows the allocation of an address to each frequency converter in a serial communication network. Description of choice: The individual frequency converter must be allocated a unique address.
VLT ® 2800 Series 503 Quick-stop Logic or (LOGIC OR) [3] (Q STOP SELECT) Digital input (DIGITAL INPUT) [0] Serial port (SERIAL PORT) [1] Logic and (LOGIC AND) [2] Logic or (LOGIC OR) [3] Function: See function description for parameter 502 Coasting stop. Description of choice: The table below shows when the motor is running and when it is in Quick-stop mode, when each of the following is selected: Digital input [0], Serial port [1], Logic and [2] or Logic or [3].
VLT ® 2800 Series mand when each of the following is selected: Digital input [0], Serial port [1], Logic and [2] or Logic or [3]. Digital input [0] Dig. input 0 0 1 1 Ser. port 0 1 0 1 Function Stop Stop Start Start Serial port [1] Dig. input 0 0 1 1 Ser. port 0 1 0 1 Function Stop Start Stop Start Logic and [2] Dig. input 0 0 1 1 Ser. port 0 1 0 1 Function Stop Stop Stop Start Logic or [3] Dig. input 0 0 1 1 506 Logic and [2] Dig. input 0 0 1 1 Ser.
VLT ® 2800 Series Logic or [3] Bus Setup Bus Setup lsb msb 0 0 0 0 0 0 0 0 0 1 1 0 1 0 1 0 1 0 0 1 0 1 0 1 1 1 1 1 1 1 1 1 508 Dig. Setup Dig. Setup msb lsb 0 0 0 1 1 0 1 1 0 0 0 1 1 0 1 1 0 0 0 1 1 0 1 1 0 0 0 1 1 0 1 1 Setup no. 1 1 1 1 1 2 1 2 1 1 3 3 1 2 3 4 509 510 Bus jog 1 (BUS JOG 1 FREQ.) Bus jog 2 (BUS JOG 2 FREQ.) Value: 0.0 - par.
VLT ® 2800 Series 514 parameter 513 Bus time interval has been exceeded. If choices [1] to [5] are activated the output relay will be deactivated. Bus time interval function (BUS TIMEOUT FUNC) Value: Off (off) [0] Freeze output frequency (FREEZE OUTPUT) [1] Stop (STOP) [2] Jogging (JOGGING) [3] Max.
VLT ® 2800 Series Description of choice: Resulting reference %, parameter 515: Terminal 53 analogue input [V], parameter 529: Gives the voltage value for the signal on terminal 53. Gives the resulting reference as a percentage in the range from Minimum reference, RefMIN to Maximum reference, RefMAX. See also Dealing with references. Terminal 60 analogue input [mA], parameter 531: Gives the present value for the signal on terminal 60.
VLT ® 2800 Series 560 N2 Override release time (NO PARITY/1 STOPBIT) [2] (N2 OVER.REL.TIME) (NO PARITY/2 STOPBIT) [3] Value: 1 - 65534 (OFF) sec. OFF Function: In this parameter, the maximum time is set which is expected to pass between the receipt of two N2 telegrams in a row. If this time is exceeded, the serial communication is assumed to have stopped and all points in the N2 point-map which are overridden will be released in the order below: 1.
VLT ® 2800 Series 580-582 Defined parameters (defined pnu's) Value: Read only Function: The three parameters hold a list of all the parameters that are defined in the VLT 2800. It is possible to read single elements of the list by using the corresponding subindex. The subindexes start at 1 and follow the order of the parameter numbers. Each parameter holds up to 116 elements (parameter numbers). Programming When a 0 is returned as parameter number the list ends. MG.27.E3.
VLT ® 2800 Series Technical functions 600-605 Operating Data Value: Par. no. Description 600 Operating hours 601 Hours run 602 kWh counter 603 Number of power-up's 604 Number of overtemperatures 605 Number of overvoltages Display text (OPERATING HOURS) (RUNNING HOURS) (KWH COUNTER) (POWER UP'S) (OVER TEMP'S) (OVER VOLT'S) Function: These parameters can be read out via the serial communication port and the LCP control unit.
VLT ® 2800 Series 617 Fault log: Value NB! When the [OK] key is activated the parameter is reset to zero. (F.LOG: VALUE) Value: [Index 1 - 10] Value: 0 - 9999 Function: In this parameter it is possible to see at which value a trip occurred. The unit of the value depends on which alarm is active in parameter 615 Fault log: Fault code . Description of choice: Read out as one value.
VLT ® 2800 Series Use the following procedure for the control card test: 1. Select control card test. 2. Disconnect the mains voltage and wait until the light in the display has disappeared. 3. Mount according to drawing and description. 4. Connect the mains voltage. 5. The frequency converter automatically undertakes a test of the control card. If the frequency converter displays a fault code from 37-45, the control card test has failed.
VLT ® 2800 Series Function: The unit's main data can be read out from parameters 621 to 635 Nameplate using the LCP 2 control unit or serial communication. Parameters 640 - 642 can also be seen on the unit's integral display. Description of choice: Parameter 621 Nameplate: Unit type: Gives unit size and mains voltage. Example: VLT 2811 380-480 V. Parameter 624 Nameplate: Software version no. The unit's present software version number appears here. Example: V 1.
VLT ® 2800 Series 678 Configure Control Card (CONFIG CONTROL CARD) Value: Standard version (STANDARD VERSION) [1] Profibus 3 Mbaud Version (PROFIBUS 3 MB Ver.) [2] Profibus 12 Mbaud Version (PROFIBUS 12 MB Ver.) [3] Function: This parameter enables a configuration of a Profibus Control Card. The default value depends on the produced unit, also being the maximum obtainable value. This means, that a control card only can be down graded to a lower performance version. 138 MG.27.E3.
VLT ® 2800 Series Special conditions Earth leakage currentand RCD relays Galvanic Isolation (PELV) Earth leakage current is primarily caused by the parasitic capacitance between motor phases and motor cable screen. When an RFI filter is used, this contributes additional leakage current, as the filter circuit is connected to earth through capacitors.
VLT ® 2800 Series The inverter turns off after 5-10 s and the frequency converter displays a fault code, although this depends on impedance and motor frequency. Earth fault The IGBT module cuts out within 100 s in case of an earth fault on one of the motor terminals U, V, W (96, 97, 98), although depending on impedance and motor frequency. Output connection Motor terminals U, V, W (96, 97, 98) for the motor can be connected/disconnected as often as required.
VLT ® 2800 Series Typical values for the rise time and peak voltage UPEAK are measured on the motor terminals between two phases. To obtain approximate values for cable lengths and voltages not mentioned below, use the following rules of thumb: 1. Rise time increases/decreases proportionally with cable length. 2. UPEAK = DC link voltage x 1.9 (DC link voltage = Mains voltage x 1.35). 3. dU / dt = VLT 2880-2882 3 x 400 V: 55 dB(A).
VLT ® 2800 Series Temperature-dependent switch frequency This function ensures the highest possible switch frequency without the frequency converter becoming thermally overloaded. The internal temperature is the actual expression of the degree to which the switch frequency can be based on the load, the ambient temperature, the supply voltage and the cable length.
VLT ® 2800 Series In both cases, the reduction is carried out linearly, down to 60% of IVLT,N. Efficiency To reduce energy consumption it is very important to optimize the efficiency of a system. The efficiency of each single element in the system should be as high as possible. Vibration and shock IEC 68-2-6: Vibration (sinusoidal) - 1970. IEC 68-2-34: Random vibration broad-band general requirements. IEC 68-2-35: Random vibration broad-band high reproducibility.
VLT ® 2800 Series Efficiency of the system (•SYSTEM) To calculate the system efficiency, the efficiency of the frequency converters (•INV) should be multiplied by the efficiency of the motor (•MOTOR): •SYSTEM = • INV x •MOTOR. Based on the graph above, it is possible to calculate the system efficiency at different loads. Mains supply interference/harmonics A frequency converter takes up a non-sinusoidal current from mains, which increases the input current IRMS.
VLT ® 2800 Series Generic EMC standards/product standards Standard / environment Industrial environment EMC Product Standard EN61800-3 Unrestricted restricted 1st edition, 1996 2nd edition, 2004 Category 3 Category 4 EMC Basic Standard, Class A2 EMC plan* EN55011, Cable-borne /Radiated Generic EMC standards EN 61000-6-4 EMC Basis Standard, Class A EN55011, Cable-borne /Radiated Residential, commercial and light industry EN61800-3 Unrestricted restricted Category 1 Category 2 Class B Class A1 EN 61000-6-
VLT ® 2800 Series Limits and methods of measurement of radio disturbance characteristics of industrial, scientific and medical (ISM) high-frequency equipment. Class 1A: Equipment used in an industrial environment. Class 1B: Equipment used in areas with a public supply network (residential, commerce and light industry).
VLT ® 2800 Series Basic standard Burst 61000-4-4 Surge 61000-4-5 ESD 61000-4-2 Radiated 61000-4-3 Acceptance criterion Port connection Line Motor Control lines Relay Profibus Signal interface <3 m Enclosure Standard bus B B B A CM DM / CM OK / OK Standard bus OK OK OK OK OK - / OK 1 - / OK - / OK 1 OK 1 2 kV / DCN 2 kV / 4kV 2 kV / CCC 2 kV / CCC 2 kV / CCC 2 kV / CCC 2 kV/2 Ω1 2 kV/2 Ω1 2 kV/2 Ω1 CM OK OK OK 10 Vrms 10 Vrms 10 Vrms 10 Vrms 10 Vrms 8 kV AD 6 kV CD 2 kV / CCC DM OK
VLT ® 2800 Series fitting of units is recommended. As a minimum, cabinets should be enclosure IP 54. Aggressive gases, such as sulphur, nitrogen and chlorine compounds, together with high humidity and temperature, facilitate possible chemical processes on the components of the frequency converter. These chemical processes quickly impact and damage the electronics.
VLT ® 2800 Series Display readout Warnings/alarm messages Fr The frequency converter shows the present output frequency in Hertz [Hz]. A warning or an alarm will appear in the display as a numerical code Err. xx. A warning will be shown on the display until the fault has been corrected, while an alarm will continue to flash until the [STOP/RESET] key is activated.The table shows the various warnings and alarms, and whether the fault locks the frequency converter.
VLT ® 2800 Series No.
VLT ® 2800 Series WARNING/ALARM 8: Undervoltage If the intermediate circuit voltage (UDC) is lower than the inverter's Undervoltage limit the inverter will be switched off until the UDC once more goes above the undervoltage limit. If the UDC remains under the undervoltage limit, the inverter will trip after a set time. The time depends on the device, and is set at 2 - 15 sec. An undervoltage can occur when the connected mains voltage is too low.
VLT ® 2800 Series WARNING/ALARM 34: HPFB communication fault Communication fault only occurs in Fieldbus versions. Regarding alarmtype, please see parameter 953 in fieldbus literature. Alarm 42, internal fault number 5: Fault in motor parameter database. ALARM 35: Inrush fault This alarm occurs when the frequency converter has been connected to the mains supply too many times within 1 minute. Alarm 44, internal fault number 7: Minimum software version of control card or BMC.
VLT ® 2800 Series Warning words, status words and Alarm words appear in the display in Hex format. If there are several warnings, status words or alarms, a total of all the warnings, status words or alarms will be displayed. Warning words, status words and alarm words can also be read out using the serial bus in parameters 540, 541 and 538 respectively.
VLT ® 2800 Series General technical data Mains supply (L1, L2, L3): Supply voltage VLT 2803-2840 220-240 V (N, L1) Supply voltage VLT 2803-2840 200-240 V Supply voltage VLT 2805-2882 380-480 V Supply voltage VLT 2805-2840 (R5) Supply frequency Max. imbalance on supply voltage True Power Factor (λ) Displacement Power Factor (cos φ) Number of connections at supply input L1, L2, L3 Max.
VLT ® 2800 Series Control card, analog inputs: Number of analog voltage inputs Terminal number Voltage level Input resistance, Ri Max. voltage Number of analog current inputs Terminal number Current level Input resistance, Ri Max. current Resolution for analog inputs Accuracy of analog inputs Scan interval 1 pcs. 53 0 - 10 V DC (scaleable) approx. 10 kΩ 20 V 1 pcs. 60 0/4 - 20 mA (scaleable) approx. 300 Ω 30 mA 10 bit Max. error 1% of full scale 13.
VLT ® 2800 Series Control card, analog output: Number of programmable analog outputs Terminal number Current range at analog output Max. load to common at analog output Accuracy on analog output Resolution on analog output 1 42 0/4 - 20 mA 500 Ω Max. error: 1.5 % of full scale 10 bit The analog output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals. See section entitled Galvanic Isolation. Control card, 24 V DC output: Terminal number Max.
VLT ® 2800 Series Cable lengths and cross sections: Max. motor cable length, screened/armoured cable Max. motor cable length, unscreened/unarmoured cable Max. motor cable length, screened/armoured cable and motor coil Max. motor cable length, unscreened/unarmoured cable and motor coil Max. motor cable length, screened/armoured cable and RFI/1B filter Max. motor cable length, screened/armoured cable and RFI/1B filter Max.
VLT ® 2800 Series Safeguards: • Electronic thermal motor protection against overload. • Temperature monitoring of the power module ensures that the frequency converter cuts out if the temperature reaches 100 °C. An overload temperature cannot be reset until the temperature of the power module is below 70 °C. • The frequency converter is protected against short-circuits on motor terminals U, V, W. • If a mains phase is missing, the frequency converter will cut out.
VLT ® 2800 Series Technical data, mains supply 1 x 220 - 240 V/3 x 200-240V According to . international standards Output current (3 x 200-240V) Output power (230 V) Typical shaft output Typical shaft output Max. cable cross section, motor Input current (1 x 220-240 V) Input current (3 x 200-240 V) Max. cable cross section, power Max. pre-fuses Efficiency3) Power loss at 100% load Weight Enclosure4 Type 2803 2805 2807 2811 2815 2822 2.2 3.5 0.9 3.2 5.1 1.3 4.2 6.7 1.7 6.0 9.6 2.4 6.8 10.8 2.
VLT ® 2800 Series Technical data, mains supply 3 x 380 - 480 V According to international standards Output current (3 x 380-480V) Output power (400 V) Typical shaft output Typical shaft output Max. cable cross section, motor Type IINV. [A] IMAX (60s) [A] SINV. [KVA] PM,N [kW] PM,N [HP] [mm2/AWG] 1) 2805 1.7 2.7 1.1 0.55 0.75 4/10 2807 2.1 3.3 1.7 0.75 1.0 4/10 2811 3.0 4.8 2.0 1.1 1.5 4/10 2815 3.7 5.9 2.6 1.5 2.0 4/10 2822 5.2 8.3 3.6 2.2 3.0 4/10 2830 7.0 11.2 4.8 3.0 4.
VLT ® 2800 Series Available literature Supplied with the unit Below is a list of the literature available for VLT 2800. It must be noted that there may be deviations from one country to the next. Supplied with the unit: Operating instructions MG.28.AX.YY Various literature for VLT 2800: Design Guide Data sheet MG.28.EX.YY MD.28.AX.
VLT ® 2800 Series Parameter list with factory settings PNU # Parameterdescription Factory setting 001 002 003 004 005 006 007 008 009 010 011 012 013 Language Local/remote operation Local reference Active Setup Programming Setup Setup copying LCP copy Display scaling Large display readout Small display line 1.1 Small display line 1.2 Small display line 1.
VLT ® 2800 Series Factory setting 100 101 102 103 104 105 106 107 108 109 117 119 120 121 122 123 Speed reg., open loop Constant torque depends on unit depends on unit 50 Hz depends on motor selected depends on par. 102 Optimisation off depends on motor selected depends on motor selected OFF 0.0 sec 0.0 sec Coast in start del. Coast 0.1 Hz 10 sec. OFF No protection 0.0 Hz 0.0 V 0% depends on unit 100 % depends on unit 100 % 0% 3.0 Hz 3.0 Hz 0% depends on motor selected Automatic 1.
VLT ® 2800 Series Factory Settings PNU # Parameter description 200 Output frequency range 201 Output frequency, low limit f MIN Output frequency, high limit f MAX Reference range Minimum ref RefMIN Maximum ref RefMAX Ramp type Ramp-up time 1 Ramp-down time 1 Ramp-up time 2 Ramp-down time 2 Jog ramp time Quick stop ramp-down time Jog frequency Reference function Preset reference 1 Preset reference 2 Preset reference 3 Preset reference 4 Catch up/slow down reference Current limit Warn. Low current Warn.
VLT ® 2800 Series PNU # Parameterdescription Factory setting 302 303 304 Digital input, term. 18 Digital input, term. 19 Digital input, term. 27 305 307 308 309 310 314 315 316 317 318 319 323 327 341 342 343 344 349 Digital input, term. 29 Digital input, term. 33 Term. 53, analogue input voltage Term. 53, min scaling Term. 53, max scaling Term. 60, analogue input current Term. 60, min scaling Term. 60, max scaling Time out Function after timeout Term. 42, analogue output Relay output Pulse ref.
VLT ® 2800 Series PNU # Parameter description Factory setting 400 405 406 409 411 412 413 414 415 416 417 418 419 420 Depends on unit type Manual reset 5 sec. Off (61 sec.) 4.5 kHz No LC-filter On 0.000 1500.000 No unit 0.010 100 ms 20.00 ms 5.0 421 423 424 425 426 427 428 437 438 439 440 441 442 443 444 445 451 452 456 457 461 462 463 464 465 466 467 468 469 470 471 484 485 486 166 Brake function Reset function Aut. restart time Trip delay overcurrent Switching frequency Var.
PNU # Parameterdescription 500 501 502 503 504 505 506 507 508 509 510 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 531 532 533 534 535 537 538 539 540 541 544 Factory setting Address 1 Baudrate 9600 Baud Coasting stop Logic or Quick stop Logic or DC brake Logic or Start Logic or Reversing Logic or Selection of Setup Logic or Selection of preset ref. Logic or Bus jog 1 10.0 Hz Bus jog 2 10.0 Hz Telegram profile FC protocol Bus time interval 1 sec.
VLT ® 2800 Series PNU # Parameterdescription 600 601 602 603 604 605 615 616 617 618 619 620 621 624 625 626 627 628 630 632 634 635 640 641 642 678 700- Factory setting Operating hours Hours run kWh counter Number of cut ins Number of overtemperatures Number of overvoltages Fault log: Error code Fault log: Time Fault log: Value Reset of kWh counter No reset Reset of running hours counter No reset Operation mode Normal operation Nameplate: Unit type Nameplate: Software version Nameplate: LCP identificatio
VLT ® 2800 Series Index 4-20 mA reference 58 5 50 Hz counter-clockwise to 50 Hz clockwise Accessories for the VLT 2800 Acoustic noise Active Setup 74 DC brake voltage 76 DC Braking 74 DC hold voltage 77 Derating for air pressure 142 Derating for ambient temperature 141 Derating for high switching frequency 142 Derating for long motor cables 142 98 Derating for running at low speed 142 22 DeviceNet 11 Diagram 47 Digital / pulse output 95 58 A AC brake 130 DC brake time 141 6
VLT ® 2800 Series H Hand Auto 30 Hand operation 68 Handling of references Harmonics High voltage test 81 144 42 High voltage warning 5 High voltage warning 42 I Initialise Ordering numbers for VLT 2800 380-480V 17 Output frequency 80 Overmodulation function 99 P Parallel connection of motors Parameter list with factory settings PC Software tools 21 Peak voltage 140 Phase loss function 108 PID functions 101 PID-controller - closed loop process control 135 52 162 Potentiometer refer
VLT ® 2800 Series S W Screened/armoured cables 42 Warning 108 Setup configuration 62 Warning words, extended status words and Alarmwords 153 Setup copying 63 Warnings/alarm messages 149 Setup shift 62 Short circuit 139 Side-by-side 41 Slip compensation 77 Slow down 85 Software Dialog 56 Spacing for mechanical installation 41 Special motor mode 69 Speed comp delay 96 Speed control, closed loop 69 Speed control, open loop 69 Speed PID 103 Speed regulation 100 Speed up/d
