SED2 variable speed drives Operating instructions CM1U5192en 01.
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Table of contents 1 Introduction ...................................................................................................7 1.1 Purpose of this document .............................................................................7 1.2 Validity...........................................................................................................7 1.3 Target audience ............................................................................................7 1.4 Document structure ...
.3.5 Power connection for drives with a built-in EMC filter ................................ 31 4.3.6 Tightening torque for connection terminals ................................................ 34 4.3.7 Cross-sections for power and motor cables ............................................... 34 4.3.8 Block diagram showing typical installation ................................................. 36 4.3.9 Direction of rotation ............................................................................
6.3.3 Analog outputs ............................................................................................60 6.3.4 Frequency setpoint (P1000) ........................................................................62 6.3.5 Selecting the command source (P0700) .....................................................62 6.3.6 OFF functions..............................................................................................63 6.3.7 Control types ............................................
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1 Introduction 1.1 Purpose of this document These operating instructions contain all the information necessary to correctly mount, install, commission, and parameterize (programming) SED2 variable speed drives (VSD) as well as for effective and troublefree operation. 1.2 Validity The operating instructions apply to all SED2 variable speed drives, frame sizes A to F. They are supplied with the product, and are part of the full range of SED2 VSD literature. 1.
CM1N5192en Data sheet The data sheet contains a brief description of functions, notes on use, type codes, accessories, ordering information, technical data, and a range overview. Target audience: Project design engineers, planners, purchasing and sales staff, and service. 1.6 Document conventions Note Danger Information pointing at immediate danger is printed under the heading “Danger” with the symbol shown in the left margin.
1.7 Environmental compatibility and disposal General notes This product was developed and manufactured using materials and processes which take full account of environmental issues and which comply with our environmental standards. Please not the following for disposal at the end of the product life, or in the event of its replacement: • For disposal, this product is defined as waste from electrical and electronic equipment (“electronic waste”); do not dispose of it as household waste.
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2 Safety instructions The following warnings and notes on danger are provided for your safety and as a means of preventing damage to the product or to any components of the connected machinery. This section contains general warnings, preventive measures, and danger warnings, which apply to all work on the SED2 variable speed drives. Specific warnings applicable to particular tasks are summarized at the beginning of each chapter and repeated throughout the chapter as necessary at the relevant points.
Danger The following terminals may carry dangerous voltages even when the variable speed drive is not running: – Power supply terminals L1, L2, L3. – Motor terminals U, V, W. – Link terminals DC-, DC+/B+, DC/R+, B-. Caution To prevent inductive and capacitive interference, connect the power, motor, and control cables to the variable speed drive as illustrated and described in section 4.2.1 “EMCcompatible wiring“. 2.
3 Mechanical installation 3.1 Installing the SED2 after extended storage Recharge the capacitors in the variable speed drive following an extended period of storage. Remember to calculate the storage time from the date of manufacture, and not from the date of delivery. The required procedure varies according to the storage period and is described below. Period of storage Required action Preparation time 1 year or less Recharging not required.
Atmospheric pollution Do not install the VSD in an environment containing atmospheric pollutants such as dust, corrosive gases, etc. Devices subject to protection standard IP20 need additional protection from dust, atmospheric pollutants, and water. Shock Do not install the VSD in a location where it might be exposed to repeated shock or vibration. 3.3 Mounting Danger The device must be grounded. ♦ Extremely dangerous conditions can arise if you do not correctly ground the variable speed drive.
3.3.1.2 Dimensions of SED2 footprint filters for frame sizes A to C Dimensions in mm Frame size A B C G H I J K A 200 73 43.5 60 160 56 187 22 B 213 149 50.5 138 174 120 200 24 C 245 185 55 174 204 156 232 35 B I K I K G J J A A H H G B C C 5192J04 5192J03 Filter for frame size A 3.3.1.
3.3.2 3.3.2.1 Dimensions of SED2 drives with IP54/NEMA 12 rating Dimensions of SED2 frame sizes B and C B Frame size A Dimensions in mm A B C B 385 270 268 C 606 350 284 51 92 J0 6 C 3.3.2.2 Dimensions of SED2 frame sizes D to F B Frame size A 5192J 07 Dimensions in mm A B C D 685 360 353 E 885 360 453 F 1150 450 473 C 16/126 Siemens Building Technologies HVAC Products SED2 variable speed drives Mechanical installation CM1U5192en 01.
3.3.3 Mounting SED2 drives with IP20/NEMA 0 rating Drilling plan for SED2 IP20 Frame sizes D, E and F Frame size A H H H Frame size B 5192M01en W W Hole spacing Frame size A B H in mm W in mm 160 - * 187 * 56 174 138 * 200 * 120 204 174 * 232 * 156 D 486 235 E 616.
3.3.4 Mounting SED2 drives with IP54 / NEMA 12 rating Drilling plan for SED2 IP54 Hole spacing W Clearance (mm) Frame size H (mm) W(mm) Top Botto Side Tightening Mounting materials torque m 342.8 230 150 150 100 C 564 312.
4 Danger Danger Electrical installation The VSD must be grounded. ♦ To ensure safe operation of the equipment, authorized persons must install and commission it in full compliance with the notes and warnings set out in these operating instructions. ♦ Take particular note of general and regional installation and safety regulations regarding work on sites with dangerous voltages (e.g. EN 50178), and of the relevant regulations for the correct use of tools and personal protective equipment.
5192Z01 Disconnecting the Y capacitor in SED2 drives, frame size A 1 2 LK 700 20/126 Siemens Building Technologies HVAC Products SED2 variable speed drives Electrical installation CM1U5192en 01.
1 5192Z02 Disconnecting the Y capacitor in SED2 drives, frame sizes B and C 2 3 Disconnecting the Y capacitor in SED2 drives, frame sizes D and E ON 1 20 21 2 2 2 3 2 4 2 5 12 13 14 1 5 16 1 7 26 2 7 28 29 30 1 2 3 4 5 6 7 8 9 10 11 2 PE Torx driver T20 M4 Screw 5192Z 03en 21/126 Siemens Building Technologies HVAC Products SED2 variable speed drives Electrical installation CM1U5192en 01.
4.1.3 Operation with a residual current device (RCD) 5192J17en Disconnecting the Y capacitor in SED2 drives, frame size F T30 Torx screwdriver M6 If a residual current device (also referred to as a GLCI or RCCB) is connected, the VSD operates without unwanted interruptions under the following conditions: þ þ þ þ þ An RCD type B must be used. The RCD must have a threshold current of 300 mA. The neutral conductor in the system must be grounded. Each RCD supplies only one VSD and no other consumers.
4.2 EMC-compatible installation The SED2 VSDs operate in environments where they may be exposed to high levels of electromagnetic interference (EMI). Normally, good installation practices ensure safe and interference-free operation. However, should problems associated with EMI occur, follow the guidelines below: Ø Ø Ø Ensure good electrical contact between the mounting plate and the metal housing of the VSD via the mounting screws. Use serrated lock washers and electrically conductive mounting plates.
Motor SED2 u v w BMS Remove cable insulation Min. 16 mm² (4 AWG)... compensating cable Grounding rail Install all cables on the same side of the plate Control cables Motor cable Min.10 mm² (6 AWG)... Cable routing for frame sizes A to C, with footprint filter 5192Z04en L1 L2 L3 PE Min.200 mm (7.8 inches).... between control cables, motor cables and mains cables PE: min.10 mm² (6 AWG)...
Cable routing for frame sizes D to F, IP20 with EMC filter Shield connected with tube clips Motor cable Incoming mains voltage 5192J21us 4.3 Mains and motor connections Caution Warning and safety instructions ♦ Check that the VSD and motor are correctly sized for the supply voltage. Check that the VSD corresponds to at least the motor output. ♦ Check that the mains cables are correctly sized for the anticipated use.
4.3.1 Access to connection terminals: Frame size A To access the mains and motor terminals, first remove the operator panel, cover, and I/O module as illustrated below. Removing the operator panel (BOP or AOP) 1 5192J08 1 5192J09 Removing the terminal cover of the I/O module 1 5192J16 2 26/126 Siemens Building Technologies HVAC Products SED2 variable speed drives Electrical installation CM1U5192en 01.
Removing the I/O module 1 2 5192J20 4.3.2 Access to connection terminals: Frame sizes B and C Removing the cover of the mains and motor terminals 1 5192J12 27/126 Siemens Building Technologies HVAC Products SED2 variable speed drives Electrical installation CM1U5192en 01.
4.3.3 Removing the operator panel (BOP or AOP) Access to connection terminals: Frame sizes D to F IP20 Refer to the relevant paragraph in Access to connection terminals: Frame size A. Opening the housing: Frame sizes D and E 1 2 5192J13 3 4 5 6 28/126 Siemens Building Technologies HVAC Products SED2 variable speed drives Electrical installation CM1U5192en 01.
Opening the housing: Frame size F 1 2 4 6 3 5 4 J1 92 51 29/126 Siemens Building Technologies HVAC Products SED2 variable speed drives Electrical installation CM1U5192en 01.
4.3.4 Power and motor terminals: Frame sizes A to F Terminal layout: Frame size A L3 L2 L1 R+ DC B- DC+ DC- V W 5192Z05 U PE (Ground) (Ground) Terminal layout: Frame sizes B and C L3 L2 DC- DC+ B+ L1 DC R+ B- U V W B- U 5192Z06 PE Terminal layout: Frame sizes D and E L1 L2 L3 DC- DC+ B+ DC R+ V W PE 5192Z07 30/126 Siemens Building Technologies HVAC Products SED2 variable speed drives Electrical installation CM1U5192en 01.
Terminal layout: Frame size F L1 R+ B+ B+ DC- B- DC+ DC+ DC+ L2 L3 U V W 5192Z08 PE 4.3.5 Power connection to the footprint filter for frame sizes A to C Power connection for drives with a built-in EMC filter The SED2 drives with frame sizes A, B, and C are delivered with built-in ready-wired EMC footprint filters. Route the power supply to the terminals of the pre-installed footprint filter.
Access to the mains connection of the EMC filter for frame sizes D to F 1 2 4 6 3 5 4 J1 92 51 32/126 Siemens Building Technologies HVAC Products SED2 variable speed drives Electrical installation CM1U5192en 01.
5192J18 5192J19 4x 6x 33/126 Siemens Building Technologies HVAC Products SED2 variable speed drives Electrical installation CM1U5192en 01.
View without cable entry guide and without lower terminal connection plate Connection terminals of SED2 frame size F, IP20, with built-in EMC filter DC- L1 B- DC+ DC+ DC+ R+ B B L2 U L3 V W EMC filter Mains voltage inputs PE L1 L2 L3 5192Z09en 4.3.6 Tightening torque for connection terminals Frame size Tightening torque 4.3.7 Nm A B C 1.1 1.5 2.25 D E F 10 (max.) 10 (max.
Input voltage range 200 V – 240 VAC, 3-phase Output rating kW (hp) Min. crosssection of supply cable 2 mm (AWG) Max. crossMin. crossMax. crosssection of supply section of motor section of motor cable cable cable 2 2 2 mm (AWG) mm (AWG) mm (AWG) 11 (15) 16 (5) 35 (2) 16 (5) 35 (2) 15 (20) 16 (5) 35 (2) 16 (5) 35 (2) 18.
Input voltage range 500 V – 600 VAC, 3-phase Output rating kW (hp) Min. crosssection of supply cable 2 mm (AWG) 4 (5) 1 (17) 1.5 (15) 2.5 (13) 4 (11) 6 (9) 6 (9) 10 (7) 16 (5) 25 (3) 25 (3) 50 (0) 70 (-2) 70 (-2) 5.5 (7.5) 7.5 (10) 11 (15) 15 (20) 18.5 (25) 22 (30) 30 (40) 37 (50) 45 (60) 55 (75) 75 (100) 90 (125) 4.3.8 Max. crossMin. crossMax.
4.3.10 Star or delta connection The required supply voltage and method of connection are indicated on the motor rating plate. In general, larger motors (400/690 V) are connected in a delta configuration and smaller motors (230/400 V) in a star configuration. Motor terminal board V1 W1 W2 U2 V2 U1 W2 V1 U2 W1 V2 5192Z30en U1 4.3.11 Connecting several motors You can use the SED2 to control several motors in parallel. Make sure, however, that all motors have the same rating.
4.4 Control terminals General information Use only shielded cables for control cables. Route control cables in separate cable trunks at least 20 cm away from motor and power cables. Location of the control terminals The control terminals are located on the I/O module. The I/O module is identical for all models. It is located under the operator panel. Access to the control terminals: Frame sizes A to C To access the control terminals, remove first the relevant terminal covers.
4.
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5 Commissioning Warnings Only authorized personnel trained in the setup, installation, commissioning, and operation of the product may work on the product and plant. Danger Caution ♦ SED2 variable speed drives operate at high voltages. ♦ Operation of electrical equipment inevitably involves the use of dangerous voltages in some components. ♦ Emergency stop facilities in accordance with EN 60204 IEC 204 (VDE 0113) must remain operative in all operating modes of the control equipment.
5.1.1 Location of the DIP switches DIP switch settings For all versions of the SED2, the DIP switches used to configure the analog inputs are located on the I/O module. The I/O module is located under the operator panel, to which it is connected either directly (frame sizes A to C, IP20) or via a cable (frame sizes D to E, and all IP54 models).
5.
5.3.2 Description of the advanced operator panel (AOP) The advanced operator panel has the following additional functions as compared to the basic operator panel: • Multilingual and multi-line plain text display. • Displays units of measurement for speed, frequency, direction of motor rotation, current, etc. • Comments on current parameters, error messages, etc. • Diagnostics menu for troubleshooting. • Main menu can be invoked directly by pressing the Fn and P keys simultaneously.
5.3.4 Buttons and their functions on the operator panel (BOP and AOP) Operator panel/Button Function Status display Effects The LCD (five-digit display for BOP, multi-line clear-text display for AOP) shows the settings used presently by the VSD or used to parameterize the VSD). Start motor Pressing this button starts the variable speed drive. This button is enabled for manual mode as part of the factory setting.
5.4 Commissioning modes 5.4.1 Prerequisites: Overview of commissioning with the BOP or AOP Mechanical and electrical installation must be complete. Setting the mains frequency * DIP switch 2: OFF = 50 Hz / ON = 60 Hz Check prior to start See section 5.2 checklist prior to switch-on. Einschalten Quick commissioning P0010=1 See section 5.4.2 Further commissioning via P0004 (parameter filter) and P0003 access level Refer to the parameter list for detailed information on the parameters.
Quick commissioning flow chart P0003 Parameter access level 0 Customized Parameter List; see P0013 1 Standard: Access to most commonly used parameters (factory setting) 2 Extended: Extended access, e.g., to VSD I/O functions 3 Expert: For experienced users only 4 Service: For authorized service personnel only (password protected) P0010 Start quick commissioning 0 Ready for operation 1 Quick commissioning 30 Factory setting Note Always reset P0010 to "0" before operating the motor.
5.4.3 Motor data for parameterization P0308 P0310 P0304 3_Mot IEC 56 IM B3 230/400V 0.61 0.35 A 0.12kW 2800 / min 50 Hz Cos j0.81 65% P0309 5.4.4 Nr. ED510 3053 IP54 Rot KL 16 60 Hz 440V Y 0.34A 0.14 kW Cos j0.81 3310 /min S.F. -- 1.15 12.022 I.CI.F P0305 P0311 P0307 Commissioning with the BOP or AOP 5.4.4.
5.4.4.2 Setting parameters with the BOP or AOP The following describes how to change parameter P1082. Use this description as a guide to setting all other parameters with the BOP. Changing P0004 – parameter filter function Changing an indexed value under P1082 – setting the maximum motor frequency Action Step 1 Press to access the parameters. 2 Press until P0004 is displayed. 3 Press to access the parameter value level. 4 Press or 5 Press to confirm and save the value.
Notes . "Busy" signal In some cases, the BOP displays for a maximum of 5 seconds while parameters are being changed. This means that the variable speed drive is busy with higher-priority activities. You can change motor parameters only if P0010 = 1. Changing individual digits of the parameters You can adjust individual digits in the display to quickly change a parameter value as follows: Make sure that you are at the level that allows for changing parameter values (see section 5.4.4.
Testing with the AOP 1. Restore the factory settings in the SED2. 2. Set parameter P700.1 from 1 to 4. 3. Press . 4. Press to switch to manual operation. to switch the device on. 5. Press 5.4.8 General operation The SED2 engineering manual contains a full description of the standard and extended parameters. Important Note . ♦ You can change motor parameters only if P0010 = 1. ♦ To start the motor, reset P0010 to 0.
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6 Programming 6.1 Introduction to the SED2 system parameters 6.1.1 Important General notes You can change the parameters only via the basic operator panel (BOP), the advanced operator panel (AOP), or the serial interface. The BOP or AOP can be used to enter and change parameters to define the required characteristics of the variable speed drive, such as motor data, ramp times, maximum and minimum frequency, etc. Ø Ø Ø Ø Ø Ø Read-only parameters are identified by the letter “r” in place of the “P”.
6.2.
6.3 Basic functions of the SED2 6.3.1 Digital inputs 5192Z17en External switch-on and switch-off arrangements are required for stand-alone operation of variable speed drives. The digital input port provides six channels, which can be extended to eight by use of the two analog inputs. You can program the function of the digital inputs as required.
Note . Setting 99 (BICO) is intended for experienced users only. For more detailed information, refer to the SED2 engineering manual. Factory settings: P0701 P0702 P0703 P0704 P0705 P0706 1 12 9 15 15 3 ON / OFF1. Reverse (change dir. of rotation). Error acknowledgement. Fixed setpoint (binary coded). Fixed setpoint (binary coded). OFF2 – coast to standstill. P0707 to P0708 Analog inputs 1 and 2 can be reconfigured with parameters P0707 and P0708 as digital inputs if required.
5192Z29 Example of the display while testing the input signals: DIN1 = 0 DIN2 = 1 DIN3 = 1 DIN4 = 0 DIN5 = 1 DIN6 = 1 AIN1 = 0 AIN2 = 1 6.3.2 Analog inputs 1 +10 V 2 4.7kΩ Minimum 5192Z19 The analog inputs are used to send positioning, control, and feedback signals to the VSD and convert them to digital signals via A/D converters.
Input type Value + min/max r0755 SCAL Input Status r0751 P0761 Input value r0752 1+2 5192Z20en P0757 P0758 P0759 P0760 ADC Smoothing time P0753 1+2 Parameter setting for AIN1 and AIN2 (commissioning) ADC deadband Smoothed value r0754 1+2 Delay Loss of signal P0761 1+2 P0762 1+2 P0756 Defines the type of analog input and enables analog input monitoring. Possible settings: 0 1 2 3 5 Unipolar voltage input (0 to 10 V) (factory setting). Unipolar voltage input with monitoring (0 to 10 V).
% ymax y2 (P0760) -10 -20 x1 (P0757) x2 10 (P0759) 20 y1 (P0758) V mA ymin Setting range Factory setting Min. Max. P0757 V or mA x1 value -20.0 20 0 P0758 % y1 value -99999.9 99999.9 0.0 P0759 V or mA x2 value -20 20 10 P0760 % y2 value -99999.9 -99999.9 100 The factory setting of the input scaling corresponds to 0 V = 0% and 10 V = 100%. Parameter Point on x/y-axis Unit P0761 Defines the ADC dead zone for the analog inputs.
6.3.3 Analog outputs The analog outputs primarily help display status variables such as output frequency, motor voltage, or present motor current within the scaleable range.
r0774 Shows the analog output value (in V or mA) after filtering and scaling. Index: P0774[0]: Analog output 1 (DAC 1). P0774[1]: Analog output 2 (DAC 2). P0776 Defines the type of analog output. Possible settings: 0 1 Note: Current output Voltage output 0 to 20 mA (factory setting) 0 to 10 V The analog outputs are designed as current outputs within 0 to 20 mA. Both analog outputs must be configured as the same type. Both channels are configured, e.g.
P0781 Defines the DAC dead zone for the analog inputs. Setting range: 0 to 20 mA or 0 to10 V Factory setting: 0 % ymax y2 -10 -20 x1 {{ x2 10 20 V mA P761 y1 ymin Index: P0781[0]: Analog output 1 (DAC 1). P0781[1]: Analog output 2 (DAC 2). 6.3.4 Ø Ø Frequency setpoint (P1000) Default setting: Terminal 3/2 (AIN+/ AIN–, 0 to 10 V corresponds to 0 to 50/60 Hz). Additional settings: See P1000. 6.3.5 Selecting the command source (P0700) Possible settings for P0700: 0 Start motor Notes .
6.3.6 OFF functions This command (by eliminating the ON command) stops the variable speed drive within the selected ramp-down time. OFF1 Parameters to change the ramp-down time: See P1121. Notes . The ON and the consecutive OFF1 command must have the same source. If the ON/OFF1 command is set for more than one digital input, only the last set digital input is valid, e.g., DIN3 is enabled.
6.4 HVAC functions of the SED2 The functions listed below were implemented specifically in the SED2 for HVAC applications. 6.4.1 PID controller In order to achieve independent control within a stand-alone application by means of the SED2 VSD, Siemens SBT implemented a proven PID controller. This controller allows for temperature (LG-Ni 1000), pressure, and speed control. The factory settings for the implemented PID parameters are designed for pressure control.
Continued: Parameterizing the PID controller P0757[1] to P0760[1] Set the scaling of the actual value for analog input 2 (see section 6.3.2 Analog inputs). P2264 Set to 755[1] (defines AIN2as actual value). P2271 Define the reaction of the PID controller to the actual values (0=heating, 1=cooling). P2200 Enable the PID controller (0=disable, 1=enable). r2262 Check for setpoint (scaled PID setpoint in %). Note: VSD must be set to automatic control. DIN1 must be set to ON.
5192D01en Torque [Nm] Frequency / torque curve P2189 Upper torque threshold 3 P2190 unterer Lower torque threshold 3 P2187 Upper torque threshold 2 P2188 Lower torque threshold 2 P2185 Upper torque threshold 1 P2186 Lower torque threshold 1 Frequency [Hz] P2182 P2183 Threshold frequency 2 Threshold frequency 1 P2184 Threshold frequency 3 The permissible frequency/torque area is defined by the zone shaded gray.
4. Set the alarm delay parameter P2192: P2192 allows for setting a delay (between 0 to 65 sec) before a warning or error message is generated. The parameter helps avoid false alarms caused by temporary transition states. This delay can also be used for belt failure detection via sensor. Factory setting: 10 s. 5. In manual mode, vary the torque frequency in the selected range to check the function. 6. Changeover to automatic control. 6.4.
4. Set the desired reaction of drive belt failure detection via parameter P2181. Possible settings for P2181: 0 1 2 3 4 5 6 Belt failure detection disabled (factory setting). Warn low torque/speed. Warn high torque/speed. Warn high/low torque/speed. Trip low torque/speed. Trip high torque/speed. Trip high/low torque/speed. Suggested setting: 1 Warn low torque/speed. 5.
If MV runs at maximum frequency and the PID feedback shows that a higher speed is demanded in accordance with the staging, the VSD switches on one of the relaycontrolled motors M1 or M2 (staging). To keep the controlled variable as constant as possible, and to compensate for the difference in output, the VSD must be decreased to minimum frequency. See the illustration below. During the staging process, PID control is suppressed.
Parameterizing motor staging (commissioning) As a rule, the factory settings can be used. P2371 Defines the configuration of additional pumps or fans. Max. 2 pumps can be added. Factory setting: 0 Maximum setting: 2 P2372 Enable motor cycling If this parameter is enabled, one or two motors are switched on or off—during staging, in addition to the speed-controlled motor—in a specified sequence based on the motor operating hours (parameter 2380).
P2378 Staging frequency This parameter is defined as a particular percentage of the maximum output frequency. This determines the frequency used to switch on or off the relay (DOUT1 or DOUT2) during staging or destaging. See the diagram below. 5192D04en f Max. freq. VSD freq. Staging freq. Min. freq. t f PID Off Relay On PID On Max. freq. VSD freq. Staging freq. Min. freq. t PID Off Relay Off PID On Factory setting: = 50 % (defined as a percentage = 100%, at fmax = 50 Hz).
6.4.5 Temperature control with LG-Ni 1000 sensor SED2 T Ni1000 5192Z26 Use the SED2 to directly measure the temperature by means of a passive temperature sensor of type LG-Ni 1000. Simple temperature control is possible accordingly. The sensor is connected to the VSD. The signal can be scaled according to requirements. Parameterization temperature control (Commissioning notes) Same procedure as for commissioning analog inputs.
6.4.6 Bypassing the VSD There are applications demanding maximum motor output. Additionally, there are applications requiring a VSD bypass system for safety reasons. For these cases, the SED2 has an integrated bypass function. Mains supply SED2 Motor starters Mechanical interlock 5192Z25en Parameterizing the bypass function (commissioning) P1260 Defines the possible triggers for changing over to bypass operating mode.
P1263 Defines the time delay between the bypass alarm OFF and the bypass switching contactor OFF. See bypass diagram below. Setting range: 0 to 300 s Recommended setting: 1 s (factory setting). P1264 Defines the time delay between the bypass alarm ON and the VSD switching contactor OFF. See bypass diagram below. 5192D03en Setting range: 0 to 300 s Recommended setting: 1 s (factory setting).
6.4.7 Hibernation mode If the VSD reaches the hibernation setpoint in PID operating mode, the hibernation timer P2391 starts. After the timer has expired, the VSD drives the output frequency of the ramp to 0 Hz. See illustration below. f Output [Hz ] Drive frequency PID frequency P2392 Restart freq. P2390 Hibernation freq. Min. freq. Time [s] Restart Hibernation mode P2391 Hibernation timer PID error [% ] 0% Time [s] max.
Parameterizing the hibernation function (commissioning) P2390 Hibernation frequency setpoint [%] Setting range: ± 200 % Recommended setting: Value 15 to 20% greater than the minimum frequency. Note: The hibernation function is disabled if the hibernation setpoint is set to 0 (corresponds to the factory setting). P2391 Hibernation timer [s] Set the desired time T1 to T3 (before hibernation mode kicks in) (see diagram above).
6.5 System parameter list for levels 1 to 3 r0000 Unit: Note: r0002 Unit: Settings: Dependency: P0003 Unit: -Settings: P0004 Unit: Example: Settings: Dependency: Note: P0005 Unit: Settings: Note: Details: Drive display Level 1 Displays the user selected output as defined in P0005. Min: Def: Max: Pressing the "Fn" button for 2 seconds allows the user to view the values of DC link voltage, output current, output frequency, and chosen r0000 setting (defined in P0005).
Instructions: Dependency: Note: r0018 Unit: r0019 Unit: Bit fields: Note: r0020 Unit: Hz r0021 Unit: Hz r0022 Unit: 1/min Note: r0024 Unit: Hz r0025 Unit: V r0026[2] 1. Step 1: Set P0003=3 (expert user) 2. Step 2: Go to P0013 indices 0 to 16 (user list) 3. Step 3: Enter into P0013 index 0 to 16 the parameters required to be visible in the user-defined list.
r0035 Unit: °C r0039 Unit: kWh Dependency: P0040 Unit: Settings: Dependency: r0052 Unit: Bit fields: Note: r0053 Unit: Bit fields: r0054 Unit: Bit fields: r 0055 CO: Act. motor temperature Displays measured motor temperature. Min: Def: - Level 3 Max: - CO: Energy consumption meter [kWh] Displays electrical energy used by variable speed drive since display was last reset (see P0040 - reset energy consumption meter).
Unit: Bit fields: r0056 Unit: Bit fields: r0061 Unit: Hz r0086 Unit: A Dependency: P0100 Unit: Settings: Dependency: Note: r0200 Min: Bit00 Bit01 Bit02 Bit03 Bit08 Bit09 Bit11 Bit12 Bit13 Fixed frequency Bit Fixed frequency Bit Fixed frequency Bit Fixed frequency Bit PID enabled DC brake enabled Droop Not Used External fault 1 Def: 0 1 2 3 0 0 0 0 0 0 0 0 0 NO, 1 NO, 1 NO, 1 NO, 1 NO, 1 NO, 1 NO, 1 NO, 1 YES, 0 Max: YES YES YES YES YES YES YES YES NO CO/BO: Status of motor control Displays stat
r0209 Unit: A P0304 Unit: V Dependency: P0305 Unit: A Dependency: Note: P0307 Unit: Dependency: P0308 Unit: Dependency: P0309 Unit: % Dependency: Note: P0310 Unit: Hz Dependency: P0311 Unit: 1/min Dependency: r0313 Unit: Value: Dependency: P0340 Unit: Data: Settings: Note: P0350 Unit: Ohm Maximum variable speed drive current Displays maximum output current of the variable speed drive. Min: Def: - Level 3 Max: - Rated motor voltage Nominal motor voltage [V] from rating plate.
Data: Note: r0395 Unit: % Note: P0400 Unit: Settings: Note: P0409 Unit: P0501[2] Unit: Settings: Details: P0506[10] Unit: Index: P0507[3] Unit: Index: P0508[4] Unit: Index: P0509[12] Unit: Index: P0601 Unit: Settings: Dependency: Stator resistance value in [Ohms] for the connected motor (from line-to-line). The parameter value includes the cable resistance. There are three ways to determine the value for this parameter: 1.
P0610 Unit: Settings: P0640 Unit: % Dependency: P0700[2] Unit: Settings: Index: Note: P0701[2] Unit: Settings: Index: Dependency: Note: P0702[2] Unit: Detail: P0703[2] Unit: Detail: P0704[2] Unit: Detail: P0705[2] Unit: Detail: P0706[2] Unit: _ Detail: P0707[2] Unit: Settings: Index: Dependency: Note: Details: P0708[2] Unit: Detail: Motor I2t temperature reaction Defines reaction when motor temperature reaches warning threshold.
P0718 Unit: r0722 Unit: Bit fields: Note: P0725 Unit: Settings: P0731[2] Unit: Settings: Index: P0732[2] Unit: Details: r0747 Unit: Bit fields: Dependency: P0748 Unit: Bit fields: r0752[2] Unit: Index: P0753[2] Unit: ms Index: Note: r0754[2] Unit: % Index: Dependency: CO/BO: Hand / Auto Selects function of digital input 8 (via analog input) Min: 0 Def: 0 CO/BO: Binary input values Displays status of digital inputs.
r0755[2] Unit: Data: Example: Index: Note: Details: P0756[2] Unit: Data: Settings: Index: Dependency: Note: Details: P0757[2] Unit: Data: Index: P0758[2] Unit: % Index: Dependency: P0759[2] Unit: Index: P0760[2] Unit: % Index: Dependency: P0761[2] Unit: Index: Note: P0771[2] CO: Act. ADC after scaling [4000h] Level 3 Displays analog input, scaled using ASPmin and ASPmax. Min: Def: Max: The analog setpoint (ASP) from the analog scaling block can vary from min. analog setpoint (ASPmin) to a max.
Unit: Settings: Index: P0773[2] Unit: ms Index: Dependency: R0774[2] Unit: Index: P0776 Unit: Settings: Note: P0777[2] Unit: % Data: Index: Dependency: P0778[2] Unit: Index: P0779[2] Unit: % Index: Dependency: P0780[2] Unit: Index: P0781[2] Unit: Index: P0809[3] Min: 0:0 Def: 21:0 21 CO: Act. frequency (scaled to P2000) 24 CO: Act. output frequency (scaled to P2000) 25 CO: Act. output voltage (scaled to P2001) P0771[0] : Analog output 1 (DAC 1) Max: 4000:0 26 CO: Act. DC-link voltage 27 CO: Act.
Note: P0927 Unit: Example: Bit fields: r0947[8] Unit: Data: Example: Index: Dependency: r0948[12] Unit: Data: Example: Index: Note: r0949[8] Unit: Index: P0952 Unit: Dependency: r0967 Unit: Bit fields: Possible PROFIBUS settings: 1 ... 125 0, 126, 127 are not allowed The following applies when a PROFIBUS module is used: DIP switch =0 Address defined in P0918 (CB address) is valid DIP switch not=0 DIP switch setting has priority and P0918 indicates DIP switch setting.
Bit13 Bit14 Bit15 r0968 Unit: Bit fields: P0970 Unit: Settings: Dependency: Note: P0971 Unit: Settings: Note: P1000[2] Unit: Data: Example: Settings: Settings: Motor potentiometer MOP up 0 Motor potentiometer MOP down 0 CDS Bit 0 (Local/Remote-Hand/Auto) 0 NO, 1 NO, 1 NO, 1 YES YES YES Status word 1 Displays active status word of variable speed drive (in binary) and can be used to diagnose which commands are active.
Index: Note: P1001 Unit: Hz Data: Dependency: Note: P1002-P1015 Unit: Hz Details: Note: P1016 to P1019 Unit: Details: Settings: Note: P1020[2] to P1023[2] Unit: Settings: Index: 71=MOP setpoint + Analog setpoint 2 31=MOP setpoint + Fixed frequency 72=Analog setpoint + Analog setpoint 2 32=Analog setpoint + Fixed frequency 73=Fixed frequency + Analog setpoint 2 33=Fixed frequency + Fixed frequency 74=USS on BOP link + Analog setpoint 2 34=USS on BOP link + Fixed frequency 75=USS on COM link + Analog setp
Dependency: Accessible only if P0701 - P0706=99 (function of digital inputs=BICO) r1024 CO: Act. fixed frequency Displays sum total of selected fixed frequencies.
P1091 to P1094 Unit: Hz Details: Note: P1101 Unit: Hz Details: Note: P1110[2] Unit: Details: Settings: Index: Note: P1120 Unit: s Details: P1121 Unit: s Details: P1135 Unit: s Details: Note: P1140[2] Unit: Index: P1141[2] Unit: Index: P1142[2] Unit: Index: P1200 Unit: Details: Skip frequency 1 through 4 Level 3 Defines skip frequency 1 which avoids effects of mechanical resonance and suppresses frequencies within +/- P1101 (skip frequency bandwidth). Min: 0.00 Def: 0.00 Max: 650.
Settings: Note: P1202 Unit: % Details: Note: P1203 Unit: % Details: Example: Note: P1210 Unit: Settings: Dependency: Caution: Note: P1211 4 =Flying start is always active, only in direction of setpoint 0 =Flying start disabled 5 =Flying start is active if power on, fault, OFF2, only in 1 =Flying start is always active, start in direction of setpoint direction of setpoint 2 =Flying start is active if power on, fault, OFF2, start in 6 =Flying start is active if fault, OFF2, only in direction of directio
Index: Caution2: Note: P1232 Unit: % P1233 Unit: s Value: Caution Note: P1236 Unit: % Value: Dependency: Note: P1240 Unit: Details: Settings: Note: P1260 722.5=Digital input 6 (requires P0706 set to 99, BICO) 722.6=Digital input 7 (via analog input 1, requires P0707 set to 99) 722.7=Digital input 8 (via analog input 2, requires P0708 set to 99) P1230[0] : 1st command data set (CDS) P1230[1] : 2nd command data set (CDS) Frequent use of long periods of DC braking can cause the motor to overheat.
P1270[2] Unit: - BI: Enable essential service Min: 0:0 P1300 Control mode Controls relationship between speed of motor and voltage supplied by the variable speed drive as illustrated in the diagram below Min: 0 Def: 1 Max: 23 Controls relationship between speed of motor and voltage supplied by variable speed drive. 20 =not used 4 =V/f with ECO mode 0 =V/f with linear charac.
Details: Dependency: Displays actual compensated motor slip as [% Slip compensation (P1335) active. P1499 Scaling acceleration torque control Enters scaling of acceleration in [%] for sensorless torque control (SLVC) at low frequencies. Min: 0.0 Def: 100.0 Max: 400.0 Enters scaling of acceleration in [%] for sensorless torque control (SLVC) at low frequencies.
P2009[2] Settings: Index: Note: P2010[2] Unit: Settings: Index: P2011[2] Unit: Index: Note: P2014[2] Unit: ms Index: Note: P2040 Unit: ms Dependency: P2041[5] Unit: Index: Note: r2050[8] Unit: Index: Note: P2051[8] Unit: Settings: Index: r2053[5] Unit: Settings: Index: r2054[7] Unit: Index: USS normalization Level 3 Min: 0 Def: 0 Max: 1 0=Disabled 1=Enabled P2009[0] : Serial interface COM link P2009[1] : Serial interface BOP link If enabled, the main setpoint (word 2 in PZD) is not interpreted as 1
P2100[3] Unit: Example: Note: P2101[3] Unit: Details: Settings: Note: r2110[4] Unit: Details Index: Note: P2111 Unit: Details: r2114[2] Unit: Details: P2115[3] Unit: Details: P2181 Unit: Details: Settings: P2182 Unit: Hz Details: Note: P2183 Unit: Hz Details: Note: P2184 Alarm number selection Level 3 Selects up to 3 faults or warnings for non-default reactions.
Unit: Hz Details: Note: P2185, P2187, P2189 Unit: Nm Details: Note: P2186, P2188, P2190 Unit: Nm Details: Note: P2191 Unit: Hz Details: P2192 Unit: s Details: r2197 Unit: Bit fields: r2198 Unit: Bit fields: P2200[2] Unit: Details: Index: Dependency: Min: 0.00 Def: 50.00 Max: 650.00 Sets a threshold F3 for comparing actual torque to torque the envelope for belt failure detection. See P2182 (belt threshold frequency 1).
Note: P2201 through P2215 The PID setpoint source is selected using P2253. The PID setpoint and the PID feedback signal are interpreted as [%] values (not [Hz]). The output of the PID controller is displayed as [%] and then normalized into [Hz] through P2000 (reference frequency) when PID is enabled. In level 3, the PID controller source enable can also come from the digital inputs in settings 722.0 to 722.2 for DIN1 to DIN3 or from any other BiCo source.
P2221[2]. P2222[2], P2223[2] Unit: Settings: Index: r2224 Unit: % Note: P2225, P2227 Unit: Settings: P2226[2]P2228[2] P2226[2] P2227 P2228[2] Settings: Index: P2231 Unit: Settings: Dependency: Note: P2232 Unit: Details: Settings: Note: P2240[2] Unit: % Settings: Dependency: Note: r2250 BI: Fixed PID setpoint select Bit 1, Bit 2, and Bit 3 Level 3 Defines command source of fixed PID setpoint selection bit 1. Min: 0:0 Def: 0:0 (P2223[2]:722.3 Max: 4000:0 722.
Unit: % Note: P2253[2] Unit: Details: Settings: Index; P2254[2] Unit: Details: Settings: Index; P2261 Min: Def: r2250=100 % corresponds to 4000 hex. CI: PID setpoint Level 2 Defines setpoint source for PID setpoint input. This parameter allows the user to select the source of the PID setpoint. Normally, a digital setpoint is selected either using a fixed PID setpoint or an active setpoint. Min: 0:0 Def: 2250:0 Max: 4000:0 This parameter allows the user to select the source of the PID setpoint.
Note: r2272 It is essential that you select the correct transducer type. If you are unsure whether 0 or 1 is applicable, you can determine the correct type as follows: 1 Disable the PID function (P2200=0). 2 Increase the motor frequency while measuring the feedback signal. 3 If the feedback signal increases with an increase in motor frequency, the PID transducer type should be 0. 4 If the feedback signal decreases with an increase in motor frequency the PID transducer type should be set to 1.
P2303[2] Unit: Settings: Index: Note: P2304 Unit: s Details: P2305 Unit: s Details: P2306 Unit: Settings: P2370 Unit: Settings: P2371 Unit: Settings: Details P2372 Unit: Settings: P2373 Unit: % Details: P2374 Unit: s Details: P2375 Unit: s Details: P2376 Unit: % Details: P2377 Unit: s Details: CI: PID o/p offset Level 3 Selects the source of the PID output offset signal.
P2378 Unit: % Details: r2379 Unit: Bit fields: P2380[3] Unit: h Index: Note: P2390 Unit: % Details: P2391 Unit: s Details: P2392 Unit: % Details: P3900 Unit: Details: Settings: Dependency: Note: Staging frequency f, %fMax The frequency as a percentage of max. frequency. During a (de) staging event, as the variable speed drive ramps from maximum to minimum frequency (or vice versa) this is the frequency at which the relay (DOUT) is switched. This is illustrated by the following diagrams. Min: 0.
6.6 Overview of factory and user parameter settings Please enter your parameter settings in the table below.
Continued: Overview of factory and user parameter settings Parameter User settings number P2191 P2192 P2200 P2201 P2202 P2203 P2204 P2205 P2206 P2207 P2208 P2209 P2210 P2211 P2212 P2213 P2214 P2215 P2216 P2217 P2218 P2219 P2220 P2221 P2222 P2223 P2225 P2226 P2227 P2228 P2231 P2232 P2240 P2253 P2254 P2261 P2264 P2265 P2267 P2268 P2269 P2270 P2271 P2274 P2279 P2280 P2285 P2291 P2292 P2293 P2303 P2304 P2305 P2306 P2307 P2371 P2372 P2373 Factory settings 3.00 10 0.0 0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.
7 Troubleshooting 7.1 Troubleshooting using the operator panel If a warning or trip code appears on the display, refer to section 7.2.1 Error code list or section 7.2.2 Warning code lists. If the motor does not start with the ON command: Ø Check if P0010 = 0. Ø Check if there is a valid ON signal. Ø Check if P0700 = 2 (for digital input control) or P0700 = 1 (for BOP control).
7.2 Error messages 7.2.1 Error F0001 Overcurrent Cause Ø Ø Ø F0002 Overvoltage Ø Ø Ø F0003 Undervoltage Ø Ø Ø F0005 VSD I2T Ø Ø F0012 VSD temperature signal lost F0015 Motor temperature signal lost F0020 1 phase for mains supply missing F0021 Earth fault Diagnosis & Remedy Motor power (P0307) is greater than VSD power (P0206). Motor lead short circuit. Earth faults. Ø Ø Reaction Off2 Check the following: 1. Motor power (P0307) ≤ VSD power (P0206). 2.
Error Cause F0022 Power stack fault The fault is caused by the following events: ♦ (1) dc link overcurrent =short circuit of IGBT. ♦ (2) short circuit of dc link chopper. ♦ (3) earth fault. Ø Frame sizes A to C (1),(2),(3). Ø Frame sizes D to E (1),(2). Ø Frame size F (2). Since all these faults are assigned to one signal on the power stack, it is not possible to establish which one actually occurred.
Error F0071 USS (BOP link) setpoint fault F0072 USS (COM link) setpoint fault F0080 ADC input signal lost F0085 External fault F0101 Stack overflow F0221 PID feedback below min. value F0222 PID feedback below max. value F0450 BIST tests failure F0452 Belt failure detected Cause Diagnosis & Remedy Ø No setpoints from USS during telegram off Check communications to data transmission module. time. Reaction Off2 Check USS master. Ø No setpoints from USS during telegram off Check USS master.
7.2.2 Error Cause A0501 Current limit Ø Ø Ø Warning code lists Diagnosis & Remedy Motor power > VSD power. Motor cables are too long. Earth faults. Check the following: 1. Motor power (P0307) ≤ VSD power (P0206). 2. Cable length limits must not be exceeded. 3. Motor cable and motor must not have short circuits or earth faults. 4. Motor parameters must match the motor in use. 5. Value of stator resistance (P0350) must be correct. 6. The motor must not be obstructed or overloaded.
Error A0912 Vdc (min) controller enabled Cause Ø Ø Diagnosis & Remedy Reaction -- Vdc min controller enabled if the DC link voltage (r0026) drops below the min. value (P2172). The motor's kinetic energy is used to buffer the DC link voltage and thus slow the drive. Ø Temporary supply failures do not automatically A0920 ADC parameters not set properly Ø Ø lead to undervoltage shutdown. -- ADC parameters must not be set to identical values, as illogical values would result.
8 Technical data for the SED2 8.1 General technical data Operating temperature ranges IP 20: –10 °C to +40 °C. IP 54: –10 °C to +40 °C. Storage temperature –40 °C to +70 °C. Humidity 95% relative humidity — non-condensing. Altitude Up to 1000 meters above sea level without performance decrease. Overload capacity 110 % periodic overload capacity for 60 s within 5 minutes relative to the nominal output current.
Min. input current: 6 mA (actual: 8 mA) at ≥15 V. Logical 0 = <3 V, logical 1 = >13 V. Max. input voltage: 33 V. Analog outputs Number:2 Can be changed over for 0 to 10 V or 0/4 to 20 mA, (programmable scaling/parameter). Factory setting: 0 to 10 V. # Terminals used: 12, 13, 26, 27 . Impedance on configuration 0 to 10 V: 1kΩ. Read cycle: 10 ms. Relay outputs 2 programmable relays, 6 contacts. # Terminals used: RL1:18, 19, 20; RL2: 23, 24, 25 . Max. contact rating: DC 30 V / 5 A, (resistive).
Dimensions and weight (frame sizes B to F IP54 / NEMA 12) IP54 / NEMA 12 Frame size W x H x D (mm) B C D E F 270 x 385 x 268 360 x 606 x 284 360 x 685 x 353 360 x 885 x 453 450 x 1150 x 428 Weight (kg) with filter without filter 11.5 21 35 48 99 10.3 19.2 35 48 81 8.2 Type-specific data 200 V to 240 V, ± 10%, 3 phases Output power (variable torque) IP code Filter class Max. input current 3 phases Max. output current A A Frame size Type (ASN) 2.3 A SED2-0.37/22B kW hp IP 0.37 0.
200 V to 240 V, ± 10%, 3 phases Output power (variable torque) IP code Filter class Max. input current 3 phases Max. output current A A Frame size Type (ASN) kW hp IP 30 40 20 unfiltered 114 104 E SED2-30/22X 37 50 20 unfiltered 143 130 F SED2-37/22X 45 60 20 unfiltered 170 154 F SED2-45/22X Frame size Type (ASN) 380 V to 480 V, ± 10%, 3 phases Output power (variable torque) kW hp IP code Filter class IP Max. input current 3 phases Max. output current A A 0.
380 V to 480 V, ± 10%, 3 phases Output power (variable torque) IP code Filter class Max. input current 3 phases Max. output current A A Frame size Type (ASN) kW hp IP 30 40 20 unfiltered 68 62 D SED2-30/32X 37 50 20 unfiltered 83 75 E SED2-37/32X 45 60 20 unfiltered 99 90 E SED2-45/32X 55 75 20 unfiltered 121 110 F SED2-55/32X 75 100 20 unfiltered 160 145 F SED2-75/32X 90 125 20 unfiltered 196 178 F SED2-90/32X 1.1 1.5 54 B 4.2 3 B SED2-1.
500 V to 600 V, ± 10%, 3 phases Output power (variable torque) kW IP code Filter class Max. input current 3 phases Max. output current A A Frame size Type (ASN) hp IP 0.75 1 20 unfiltered 2 1.4 C SED2-0.75/42X 1.1 1.5 20 unfiltered 2.5 2.1 C SED2-1.1/42X 1.5 2 20 unfiltered 3.2 2.7 C SED2-1.5/42X 2.2 3 20 unfiltered 4.4 3.9 C SED2-2.2/42X 3 4 20 unfiltered 6.3 5.4 C SED2-3/42X 4 5 20 unfiltered 6.9 6.1 C SED2-4/42X 5.5 7.5 20 unfiltered 9.
9 Appendix 9.1 Options Depending on the application, various options are available for the SED2 variable speed drive. Output chokes Chokes at the VSD output may be required to compensate for leakage capacitance. Refer to the engineering manual for detailed information on this topic. Gland plate The gland plate simplifies and improves connection of shielded motor and control cables. It allows for better contact of the shields and thus optimizes the EMC behavior of the variable speed drive.
9.1.1 Retrofitting EMC filters for VSD frame sizes A to C The SED2 VSDs of frame sizes A to C without filter can be retrofitted with footprint filters as needed. Mounting instructions are included in the filter packing. Below are the order numbers for the voltage ranges and frame sizes: 200 V to 240 V, 3 AC 380 V to 480 V, 3 AC 500 V to 575 V, 3 AC A SED2-BFLTR-A SED2-BFLTR-A No filter available. B SED2-BFLTR-B SED2-BFLTR-B No filter available.
9.3 List of abbreviations AC Alternating current. A/D Analog / digital converter (also called ADC). AIN Analog input. AOP Advanced operator panel (AOP). AOUT Analog output. BACS Building automation and control system; do not confuse with building management system BMS. BI Binector input, i.e., the parameter selects the source of the binary signal. BO Binector output, i.e., the parameter connects as a binary signal. BOP Basic operator panel (BOP). CB Communication board.
Staging For pumps (or fans): The process of starting an additional motor with constant speed to increase power. USS Universal serial interface protocol. VSD Variable speed drive. Y-condensator Star condensator. 122/126 Siemens Building Technologies HVAC Products SED2 variable speed drives Appendix CM1U5192en 01.
Index A abbreviations ...........................................................118 access to connection terminals frame sizes B and C.............................................25 frame sizes D to F................................................26 access to connection terminals for frame size A .......24 advanced operator panel...................................41, 116 ambient conditions ....................................................11 analog inputs ...............................................
motor overload protection ......................................... 38 mounting SED2 IP20/NEMA 0 ............................................ 15 SED2 IP54/NEMA 12 .......................................... 16 warnings .............................................................. 12 N notes on danger.......................................................... 9 O OFF functions ........................................................... 59 opening the device....................................................
/126 Siemens Building Technologies Landis & Staefa Division SED2 variable speed drives Index CM1U5192en 01.
Siemens Building Technologies Ltd. HVAC Products Gubelstrasse 22 CH-6301 Zug Tel. +41 41-724 24 24 Fax +41 41-724 35 22 www.landisstaefa.com © 2001 Siemens Building Technologies Ltd. Subject to change 126/126 Siemens Building Technologies HVAC Products SED2 variable speed drives CM1U5192en 01.
