AI-TEK INSTRUMENTS, LLC INSTRUCTION MANUAL -FORTACHPAK® 10 & 30 TACHTROL® 10 & 30 TACHTROL® plus TACHLINK™ WINDOWS / PC APPLICATION TM5-500_B_5/23/07
1 Introduction 1 1.1 Overview 1 1.2 Tools 2 1.3 Notes and cautions 2 1.4 Where to go for help 3 2 Unpacking Instructions 3 2.1 Package contents 3 2.2 Unpacking 4 3 Mounting and Wiring Procedures 4 3.1 Installation and wiring guidelines 4 3.2 Mounting guidelines 6 3.2.1 TACHPAK 10, TACHPAK 30 6 3.2.2 TACHTROL 10, TACHTROL 30, TACHTROL plus 7 3.2.2.1 DIN Rail Mounting For TACHTROL 10, TACHTROL 30 8 TACHTROL plus 3.2.3 NEMA 4X Mounting for TACHTROL AND TACHPAK 9 3.2.
.4 18 Wiring Connections 3.4.1 Speed Sensors 19 3.4.2 Power 20 3.4.3 External Verify and Relay Reset Circuit 21 3.5 USB (all TACHTROL and TACHPAK instruments) 22 3.5.1 Direct USB link 22 3.5.2 USB to RS-485 link (TACHTROL / TACHPAK 30 only) 22 3.6 RS-485 link (TACHTROL / TACHPAK 30 only) 23 3.6.1 Direct RS-485 link 23 3.6.2 RS-232 to RS-485 link 23 Using the Windows application 25 3.7 3.7.1 Loading TACHLINK onto Windows 25 4 Tachometer Functions 26 4.
.2.2 Input / Digital Input Setup (Tachometer Mode) 37 4.2.2.1 Direction Detection 38 4.2.2.1.1 Quadrature 38 4.2.2.1.2 Direction Bit 39 4.2.2.2 Equation 40 4.2.2.3 Units (For Equation) 41 4.2.2.4 Logic Low / High 42 4.2.2.5 Averaging and Average Period 43 4.2.2.6 Input Setup / Input A & B 45 4.2.2.6.1 Normalization 45 4.2.2.6.2 Units A & B 46 4.2.2.6.3 Input Type (A & B) 47 4.2.2.6.4 Minimum Frequency / Maximum Period 47 4.2.
4.2.4.4 Output Switching / Setpoint Types 60 4.2.4.4.1 EA (Energize above setpoint) 61 4.2.4.4.2 EB (Energize below setpoint) 61 4.2.4.4.3 DA (De-energize above setpoint) 62 4.2.4.4.4 DB (De-energize below setpoint) 62 4.2.5 Analog Output (TP30 and TT30) Only 67 4.2.5.1 Analog Output Setup 67 4.2.5.1.1 Source 68 4.2.5.1.2 Range 69 4.2.5.1.3 Min / Max Value 69 4.2.5.2 Analog Output Calibration (TACHLINK ONLY) 70 4.2.6 Security 72 4.2.6.1 Alarm Reset 73 4.2.6.1.
4.2.9.2.1 Plotting Toolbar 91 • Tracking Resume: 91 • Tracking Pause: 91 • Axes Scroll: 91 • Axes Zoom: 91 • Zoom Out / In: 91 • Select: 92 • Zoom Box: 92 • Data Cursor: 92 • Edit: 93 • Copy To Clipboard: 93 • Save: 93 • Print/Print Preview: 93 4.2.10 Display (TACHTROL series only) 94 4.2.10.1 Display/Keypad Setup 95 4.2.10.1.1 Display Line 1 & 2 95 4.2.10.1.2 Backlight Timeout 95 4.2.10.1.3 Contrast 96 4.
5.1.3.6 Normalization 98 5.1.3.7 Units 99 5.1.3.8 Input Type 99 5.1.3.9 Min Freq 99 Relay Output 1 Setup 99 5.1.3.10 Source 99 5.1.3.11 Latch Mode 99 5.1.3.12 On / Off Delay 99 5.1.3.13 Output Switching 99 Digital 1 &2, Relay 2 and Analog Output 99 Security Setup 99 5.1.3.14 Alarm Hold-Off 99 5.1.3.15 Keyboard Lock 99 5.1.3.16 Change Security Code 99 5.1.4 Use Verify to validate setup 100 5.2 Intermediate setup 100 5.2.1 Material Requirements 100 5.2.
5.2.3.11 Latch Mode 102 5.2.3.12 On / Off Delay 102 5.2.3.13 Output Switching 102 Digital Output 2 Setup 102 Output Switching 102 Relay Output 1 Setup (Failsafe Overspeed alarm) 102 5.2.3.15 Source 102 5.2.3.16 Latch Mode 102 5.2.3.17 On / Off Delay 103 5.2.3.18 Output Switching 103 Relay Output 2 Setup (Failsafe Underspeed alarm) 103 Output Switching 103 Analog Output Setup 103 5.2.3.20 Source 103 5.2.3.21 Range 103 5.2.3.
Input Setup 107 5.3.4.1 Counter Mode 107 5.3.4.2 Direction 107 5.3.4.3 Equation & Units 107 5.3.4.4 Logic Low & High 107 5.3.4.5 Normalization 107 5.3.4.6 Units 107 5.3.4.7 Counter Type 107 5.3.4.8 Preset 108 Relay Output 1 Setup 108 5.3.4.9 Source 108 5.3.4.10 Latch Mode 108 5.3.4.11 On / Off Delay 108 5.3.4.12 Output Switching 108 Relay Output 2 Setup 108 Output Switching 108 Digital Output 1 & 2 and Analog Output Setup 108 Security Setup 108 5.3.4.
5.3.5.4 Logic Low & High 110 5.3.5.5 Averaging 110 5.3.5.6 Normalization 110 5.3.5.7 Units 110 5.3.5.8 Input Type 110 5.3.5.9 Min Freq 110 Digital Output 1 Setup 111 5.3.5.10 Source 111 5.3.5.11 Latch Mode 111 5.3.5.12 On / Off Delay 111 5.3.5.13 Output Switching 111 Digital Output 2 Setup 111 Output Switching 111 Relay Output 1 & 2 111 Analog Output Setup 111 5.3.5.15 Source 111 5.3.5.16 Range 112 5.3.5.17 Min / Max Value 112 Security Setup 112 5.3.5.
6 Specifications 113 Electrical Input Power 113 Power consumption, DC Voltage, AC Voltage, Power Sharing, Output Power Input Signal Characteristics 113 Channel A & B, Frequency, Input Impedance, Input Sensitivity, Common Mode Rejection Ratio, Electrical Isolation Verify and Reset 114 Frequency, Input Impedance, Input Sensitivity, Common Mode Rejection Ratio, Electrical Isolation Direction 114 Frequency, Input Impedance, Input Sensitivity, Common Mode Rejection Ratio, Electrical Isolation Output Ch
Environmental 118 Operating Temperature, Thermal Cycle, Dielectric Strength, Humidity, Vibration, Shock, EMC, RoHS Connectors 118 USB, RS485, Remote Display, Signal And Power I/O 7 Target Variable Conversions 119 8 Annex 1: Startup Databases 120 9 Warranty and Return Shipments Statement 121
1. Introduction AI-TEK TACHTROL 10 &30 (TT) and TACHPAK 10 & 30 (TP) series instruments are dual input, industrial tachometers used to measure the rate of events from a given process. Using the proportional signal outputs from either passive or active sensors, TT and TP can measure, monitor and react to events as simple as the speed of a shaft, or as complex as relating the differential in speed of 2 independent rotating objects.
• Drives up to 8 remote displays (TTplus). A single display can be up to 1000 ft away with a simple RJ11 (phone jack) connection. Longer runs, cable type and number of displays will affect distance. • Security mode protects unauthorized access for programming or alarm resets (through display or GUI) • Mounts to DIN rail. Power can be applied through special DIN bus when used with AI-TEK power supply (TP only). • Environmentally hardened for temperature, vibration and shock.
1.4. Where to go for help For technical support and programming assistance on this product, please contact your local distributor. To locate a distributor, please use one of the following: Phone: 1-800-643-0643 website: www.aitekinstruments.com/distributors/ 2. Unpacking Instructions To ensure safe transit, every TACHPAK and TACHTROL is thoroughly tested and carefully packed prior to leaving the plant. Responsibility for its safe delivery was assumed by the carrier upon acceptance of the shipment.
TACHPAK 10 & 30 Explosion Proof and NEMA 4X are shipped in a single carton containing one rated enclosure and one boxed instrument as described above. 2.2. Unpacking Caution! : TACHPAK and TACHTROL are precision instruments. Although they are designed to withstand the rigors of industrial use, excessive physical shock or vibration can cause damage. Handle carefully. Do not drop or subject to physical extremes. 1.Place the carton on a level surface in a well-lighted area and open the top. 2.
• Signal and control wiring should be, at a minimum, in twisted pairs. Lines for magnetic pick-ups and other frequency output devices should be run in separate shielded cables. • Try not to use commutators or slip rings to transmit low-level signals. Should this be absolutely necessary, ensure that the point of contact is maintained and clean at all times. Refer questions about this type of application to your local distributor.
3.2. Mounting guidelines 3.2.1. TACHPAK 10, TACHPAK 30 TACHPAK is designed to mount to 35 mm DIN rail. Locate TACHPAK to ensure it is adequately protected from the environment and ensure mounting is secure.
3.2.2. TACHTROL 10, TACHTROL 30, TACHTROL plus TACHTROL is designed to mount into a panel with a wide range of thickness. Locate TACHTROL to ensure it is adequately protected from the environment and ensure mounting is secure.
3.2.2.1. DIN Rail Mounting For TACHTROL 10, TACHTROL 30, TACHTROL plus A mounting kit is available to allow TACHTROL to be mounted to 35 mm DIN rail.
3.2.3. NEMA 4X Mounting For TACHTROL AND TACHPAK 3.2.4.
3.2.5.
3.2.6. Speed Sensor Mounting Considerations The sensor should be secured in a rigid mount. Normal machine vibration should not affect the accuracy of the instrument. However, any relative motion, caused by a loose sensor or vibrating mount between the sensor and the target can produce erratic behavior . Consult the applicable AI-TEK Instruments, LLC product specifications. 3.2.6.1. Speed Sensor Types AI-TEK offers a wide variety of speed sensors that are compatible with the tachometer instruments.
3.3. Terminal Block assignments 3.3.1.
Terminal block assignments are shown below. Terminal Block TB1 TB2 TB4 TB3 TB5 TB6 TB8 TB7 Pin # TACHPAK 30 TACHPAK 10 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Input Com A Sig B Sig Direction Input Verify Verify + Reset Reset + Analog Out + Analog Shield Analog Out Not Used In GND 12-30 Volt In +12 Vdc Out Out GND Relay 1 Com Relay 1 N.C. Relay 1 N.O. Not Used Relay 2 Com Relay 2 N.C. Relay 2 N.O.
TACHPAK has additional connections that can be made for Remote Displays, USB and RS485. When mounting, ensure sufficient clearance for cabling. Terminal Block Remote Display USB RS485 DB9 Pin # TACHPAK 30 TACHPAK 10 Use RJ11 type connector. No individual breakout of pins. Use USB “B” type connector. No individual breakout of pins. 1,5 GND 2 Tx Not 3 Rx Available 6 Tx + 7 Rx + 4,8,9 Not Used Remember to select the applicable Comm. connection per section 4.2.1.
3.3.2.
Terminal block assignments are shown below. Terminal Block TB1 TB2 TB3 Remote Display TB4 TB5 TB6 TB7 TB8 TB9 Pin # 1 2 3 1 2 3 1 2 3 4 1 2 3 4 1 2 3 1 2 3 1 2 3 4 1 2 3 4 1 2 3 4 TACHTROL 30 Relay 1 N.O. Relay 1 Com Relay 1 N.C. Relay 2 N.O. Relay 2 Com Relay 2 N.C.
TACHTROL has additional connections that can be made for Remote Displays, USB and RS485. When mounting, ensure sufficient clearance for cabling. Terminal Block Remote Display USB RS485 DB9 Pin # TACHTROL 30 TACHTROL 10 Use RJ11 type connector. See TB3 for individual breakout of pins. Use USB “B” type connector. No individual breakout of pins. 1,5 GND 2 Tx Not 3 Rx Available 6 Tx + 7 Rx + 4,8,9 Not Used Remember to select the applicable Comm. connection per section 4.2.1.2 3.3.3.
Terminal Block TB1 Remote Display Remote Display Pin # TACHTROL plus 1 +12vdc In 2 Sig + 3 Sig 4 Gnd Use RJ11 type connector. See TB1 for individual breakout of pins. TACHTROL plus can be connected to TACHTROL or TACHPAK using high quality RJ11 connectors and cables. If longer distances or more durable connections are required, TACHTROL and TACHTROL plus can be connected with larger gauge cables via TB3 and TB1 respectively. Display connections to TACHPAK can also be upgraded.
3.4.1.
3.4.2.
3.4.3. External Verify and Relay Reset Circuit TACHTROL 10 & 30 External Function Terminal TACHPAK 10 & 30 Description Terminal Description Verify * 3.5 – 30 Vdc > switch > TB8, pin 2 Verify + TB2, pin 6 Verify + Verify - TB2, pin 5 Verify – Reset + TB2, pin 8 Reset + Reset – TB2, pin 7 Reset – | >>>>>>>>> Ground > TB8, pin 1 Reset * 3.5 – 30 Vdc > switch > TB8, pin 4 | >>>>>>>>> Ground > TB8, pin 3 *Can use external or internal power supply.
3.5. USB (all TACHTROL and TACHPAK instruments) USB is the simplest way to connect a computer to TACHTROL or TACHPAK. When TACHLINK is loaded onto a pc it allows full access to programming and viewing tachometer functions and outputs. There are 2 popular methods of connection. 3.5.1. Direct USB link Use a high quality USB 2.0 A/B cable. Maximum transmission distance is approximately 10 to 15 ft. USB booster / distance extenders are available that allow distances up to approximately 150 ft.
Set Dip Switches and install any necessary drivers for converter device as directed by manufacturers instructions. Windows will configure the converter as an additional COM port. 3.6. RS-485 link (TACHTROL / TACHPAK 30 only) RS-485 allows full TACHLINK function and the ability to communicate over thousands of feet. Typically, the need to reload files from the installation disk is eliminated when connecting, one at a time, to multiple tachometers. 3.6.1.
tachometer in such situations. Make connections as defined below or follow manufacturers instructions. Set Dip Switches and install any necessary drivers for converter device as directed by manufacturers instructions. 4WSD9TB Designation GND RDATDA RDB+ TDB+ N/A RS-232 TACHTROL/TACHPAK 30 Designation Pin GND 1 or 5 Tx 2 Rx 3 Tx + 6 Rx + 7 Not Used 4,8,9 RS232 – RS485 converter ⇐ Tach RS-485 DB9 Cable (straight thru) Remember to select the applicable Comm. connection per section 4.2.1.
Using the Windows Application 3.7. 3.7.1. Loading TACHLINK Onto Windows 2000 or XP. • Load onto your pc prior to connecting with either USB or RS485. Close all unnecessary applications. • Once inserted, the CD should automatically load the installation. If not, click START then RUN. Type “X:\Setup.exe” (replace “X” with the correct drive letter for the applicable CD-ROM drive, typically D). Follow the on-screen instructions to complete the installation. • If your pc does not have Microsoft ® .NET 1.
4. Tachometer Functions Both TACHPAK and TACHTROL are highly configurable instruments. This allows the instrument to perform very simple to very complex tasks. Both are designed to communicate with remote TACHTROL plus displays via a dedicated LAN (Local Area Network). Each tachometer series can be connected to up to eight remote TACHTROL plus displays (when using the TACHTROL series, the instrument counts as one display), a PC loaded with TACHLINK through USB2.
functions and tracks the nested menus used in front panel programming. TACHLINK also allows additional function including Analog output calibration (see section 4.2.5.2) as well as the ability to track and plot rate information over a long period of time. (see section 4.2.9) Programming can be accomplished at either the installation site or off site, then debugged, with features integrated in the tachometer, all prior to committing to the first “live” run.
the sign of the exponent is negative, the larger the exponent value, the smaller the number. When the sign is positive, the larger the exponent value, the larger the number. For example: 1) 1.5674e-3 = 1. 5674 x 10-3 = 1.5674 x .001 = .0015674 2) 1.5674e+3 = 1.5674 x 103 = 1.5674 x 1000 = 1567.4 -and3) -1.5674e-3 = -1. 5674 x 10-3 = -1.5674 x .001 =-.0015674 4) -1.5674e+3 = -1.5674 x 103 = -1.5674 x 1000 = -1567.4 4.1.1.2.
4.1.2. Using the Tachtrol and Tachtrol plus front panel Both front panels have the same configuration and operate identically. Each front panel is equipped with a LCD graphics display, Up/Down/Left/Right navigation keys, an enter key and two function keys. 4.1.2.1. Function Keys allow access to different configuration modes and operational functions. The actual key function changes as the user makes selections and is indicated above the key on the LCD display.
4.1.2.2. Up/Down/Left/Right Arrow Keys arrows are used to navigate to menu selections above and below your current position. arrows are also used to increment and decrement a user-defined constant. arrows are used to navigate over to a user-defined constant within the same line. , , , keys also have the numbers 1 through 4 associated with them. They are used to configure and enter the security code. 4.1.2.3. The Enter key has several basic functions.
changed. When changes are complete, depress the enter key to return back to navigation. key, until After changes are made to any field, depress PREV, you reach the first drop down menu then MAIN key. The tachometer will ask the question: “Changes have been made to system parameters. Save the changes? Yes/No.” Select yes to save the changes. The tachometer will display “Busy” during the downloading process. When MAIN re-appears, the instrument is ready to measure or accept additional changes.
4.2. Navigating Menus And Changing Constants This section has two main purposes. The first is to define and illustrate tachometer functions. The second deals with the mechanics of navigating through menus and changing user-configurable constants. Section 5, Example Applications, will provide actual examples for the user to follow. Due to similarities in the mechanics of navigation through menus and changing constants, examples of each will not be shown, however they are all defined in detail.
In contrast, TACHLINK is shown below. It displays Input A, B and Equation simultaneously. Input A is indicating 1.451 with units of “rpm”. Input B is indicating 507.743 with units of “Frequency”. The Equation line is indicating 1.4506209 (essentially “A”) and has no units. The display also indicates an alarm is in effect on DIG1 (in red). The green “Online” status light and Status bar at the bottom of the display indicate the tachometer is connected to the network and accessible through TACHLINK.
4.2.1.1. Database Open and Database Save As discussed earlier, user-defined configuration constants are stored in the tachometer instrument. If there is a need to propagate the same setup to other networks or to backup the data, Database Save allows the user to save the configuration as it exists on TACHLINK to a file on a PC. Database Open allows the user to retrieve the file and make it active. Database Save and Database Open are not active under the Main tab. Select any other tab to make them active.
4.2.1.2. Communication Port TACHLINK can be connected to a tachometer network in a number of ways. Clicking on Comm. Port brings up the dialog box shown below. Available Com Ports will vary by computer, however the most common are USB, Com1, Com2, Com3, etc. The simplest and most convenient way to connect is through USB when the PC or laptop can be located near the Tachometer.
4.2.1.3. About Provides information pertaining to TACHLINK, AI-TEK, and software revision. Accessing change menus from the display is as described below. From the Main screen, depress Menu, , to list the Change menus. Each menu allows access to different operating modes as well as user-configurable constants. Modes allow the instrument to have personalities that are tailored to specific function. The four main modes are Tachometer, Counter, Verify and Diagnostics.
4.2.2. Input / Digital Input Setup (Tachometer Mode) Input Setup allows the user to configure a set of global constants that affect how the tachometer reacts to incoming signals. In tachometer mode, the instrument measures and reacts to external events in terms of frequency or rate. All math and normalization operations as well as alarm setpoints, hysteresis and scaling are performed as frequency, speed or rate. When in Tachometer mode, both Period and Direction detection are active.
Depress to select Change Tach and to display the Input/Output configuration menus. With INPUT highlighted, depress to enter INPUT SETUP. 4.2.2.1. Direction Detection Direction detection allows the tachometer to monitor and react not only to speed information, but to direction as well. In tachometer mode, a negative in front of the speed indicates a reversal in direction. Alarm setpoints and hysteresis can be set to react to target reversal.
4.2.2.1.2. Direction Bit When set for direction mode, the instrument can recognize an externally applied logic level present at the Direction input. An AI-TEK BH series bi-directional sensor can provide the logic level signal. The instrument can be user-configured to react to either high (Bit High) or low logic (Bit Low) level as a reversal in direction. Once in INPUT SETUP, Direction is highlighted. Depress once for each choice of the Fixed Range Variable. Pictured here, is depressed until Dir.
Below is an example of changing the Direction constant using TACHLINK. Simply click on the menu down arrow and click on the desired selection. When all of the changes are complete, click on the Main tab and answer Yes / No to keep or discard the changes. 4.2.2.2. Equation This global, Fixed Range Variable assigns a mathematical equation to both of the input frequencies. The equation allows calculation of the reciprocal for each channel as well as methods to mathematically relate the two channels.
From the previous section, navigate to Equation using until Equation is highlighted. Toggle through the available equations using . Navigate off using or . 4.2.2.3. Units (For Equation) The units apply only to the equation. Additional units can be specified for Input A and B, described later in a subsequent section. Up to 10 characters (numbers, letters and symbols) can be used to describe the units associated with this constant.
4.2.2.4. Logic Low / High Both High and Low logic levels are Variable Range Constants and can be adjusted by the user to tailor the input to provide the largest noise margin possible or to filter against specific amplitude levels. Logic levels are adjustable as positive numbers only. From the INPUT SETUP pages described in section 4.2.2.3, depress Next, , to navigate to the next page. In this example, the Logic Low level will be changed.
Below is an example of changing the Logic High Level constant using TACHLINK. Simply highlight the dialog box and type in the desired level. You do not need to type the unit “Volts”. When all of the changes are complete, click on the Main tab and answer Yes / No to keep or discard the changes. When logic levels are set very low, unused input channels will pick up ambient noise and potentially interpret noise as signal. Tie any unused inputs to ground through a 1KΩ resistor. 4.2.2.5.
From section 4.2.2.4 navigate to Averaging using . With Averaging highlighted, toggle between On or Off using . Navigate to Average Period using . Depress to make the constant active for change. The cursor highlights the most significant digit and is required to enter values of 10 or more. Depress or to navigate the cursor to the first digit to be changed for this example. Use to increment or decrement the number as required. Use for each additional digit to change.
4.2.2.6. Input Setup / Input A & B Input Setup for input channels A & B are specific to each input, however the actual constants available and the mechanics for configuration are the same. 4.2.2.6.1. Normalization Normalization is a mathematical Variable Range Constant used to convert the input frequency into a number that is useful to the user. For instance, the output of a sensor connected to a wheel driving a conveyor belt is in frequency, however, feet per minute may be more appropriate.
From the INPUT SETUP pages last described in section 4.2.2.5 Depress Next, , to navigate to the Input A Setup page. Normalization will be highlighted. Depress to make the constant active for change. The sign preceding the base number is highlighted. Use to change the sign. Depress or to navigate the cursor to the first digit to be changed for this example. Use decrement the number as required. Use or to increment or for each additional digit to change.
4.2.2.6.3. Input Type (A & B) Input Type is a Fixed Range Constant and changes the instrument from Frequency to Period measurements. Period is a sub-mode to Tachometer mode and allows the instrument to measure and react to external events in terms of time. If the user is attempting to measure events that are spaced far apart, the frequency will be very low, however the period, or time between events will be relatively large.
Navigate to the constant using or or . Depress to increment/ decrement a digit and to make the constant active. Use or to navigate to the next or previous digit. Follow the rules for changing a Variable Range Constant in section 4.2.2.4 and save changes as described in section 4.1.2. Depress Next, , to navigate to the Input B Setup page. Constants for Input B Setup are the same as for Input A. When changes are complete, depress .
In order to access special menus for Counter, Tachometer, Direction, etc, the mode must first be selected and active. Select the mode (as illustrated below), continue to navigate to the first user-configurable constant and make an arbitrary change. This is necessary to force the tachometer to recognize that a change had been made. Exit to the Main screen and save the change. Re-entry into the menus will now provide the mode-specific constants.
Depress to select Change Counter and to display the Input/Output configuration menus. With INPUT highlighted, depress to enter INPUT SETUP. 4.2.3.1. Direction, Equation, Units The first page in INPUT SETUP containing Direction, Equation and Units is the same as in the Tachometer section. Follow applicable directions in section 4.2.2.
4.2.3.2. Logic Low, Logic High Depress Next, , to navigate to the next page. Averaging functions are not active in Counter Mode. Making changes to Logic Low and High is the same as in the Tachometer section. Follow applicable directions in section 4.2.2. 4.2.3.3. Normalization (Input A & B) Depress Next, , to navigate to the next page. Making changes to Normalization for Input A and B is the same as in the Tachometer section. Follow applicable directions in section 4.2.2. 4.2.3.4.
4.2.3.5. Counter Type The instrument can be configured to count up from zero or some user-defined preset number or count down from a preset number. When used in conjunction with Direction, additional rules apply: Ex. 1: If Counter type = UP and Direction = ALB or Dir Bit High THEN Count will increment in the positive direction until phase reverses (BLA) or direction bit goes low; count will then decrement Ex.
Depress to navigate to Preset. With Preset highlighted depress to make constant active for change. The sign preceding the base number is highlighted. Use sign. Depress or to change the to navigate the cursor to the first digit to be changed for this example. Use or to increment or decrement the number as required. Use for each additional digit to change. Change the exponent sign in the same manner as described for the sign preceding the base number.
value of normalized units that represents a significant point within the speed, frequency, period or count range of the input signal that causes a relay to change state. “Energized” describes the condition where the relay is “On” and the normally open contacts are closed. “De-energized describes the condition where the relay is “Off” and the normally open contacts are open. The frequency, after normalization may be expressed as cycles per second, gallons per hour, etc.
Digital Output Setup allows the user to configure the outputs individually. Each output can be assigned to a specific normalized frequency input and to switch on (alarm) and reset in a particular manner. The following is a very detailed description of setpoints and switching behavior utilized by Digital Output 1&2 and Relay Output 1&2. 4.2.4.1. Source Source is a Fixed Range Constant. Each output can be assigned to any input. The user can decide to assign one or all of the outputs to a single input.
located or biased below the setpoint to allow the setpoint to trip (alarm) at the prescribed value as speed increases and to permit release of the setpoint when the speed decreases to a safe level. Underspeed setpoints are the opposite of Overspeed setpoints. 4.2.4.2.1. Latch Function Latch Function is a Fixed Range Constant and is either ON or Off.
Navigate to On Delay using Depress . to make the constant active for change. The cursor highlights the first active digit. In this case the most significant digit will not be changed. to navigate the cursor to the first digit to be Depress changed. Use or required. Use to increment or decrement the number as for each additional digit to change. In this illustration On Delay is being set to 2.00 seconds. When changes are complete, depress to exit the change.
On or Off Delay should only be applied where a delayed response can be tolerated and where the exact speed does not need to be known. When Delay is applied, all outputs including Digital, Relays, Analog and Display are affected. Delay will affect the amount of time the instrument uses to respond to an alarm condition. The Following sections 4.2.4.2.3 through 4.2.4.3.2 are not user-definable constants.
4.2.4.2.4. Non-Failsafe Setpoint Non-Failsafe refers to a mode of operation that utilizes the normally open set of contacts on a relay, where during normal operation the relay is energized and the contacts are held closed. In the event of power loss to the instrument, an alarm condition will not result at the switched output device. Alarm condition refers to a switched output state that signals a fault to auxiliary or support equipment.
4.2.4.4.
4.2.4.4.1. EA (Energize above setpoint) Used in applications where non-failsafe control of an Overspeed condition is desired. Operation is as follows: • If the monitored application is operating at a speed below the setpoint, the relay is de-energized. • If the speed increases beyond the setpoint value, the setpoint enters the alarm condition and energizes the relay.
4.2.4.4.3. DA (De-energize above setpoint) Used in applications where failsafe control of an Overspeed condition is desired. Operation is as follows: • If the monitored application is operating at a speed below the setpoint, the relay is energized. • If the speed increases beyond the setpoint value, the setpoint enters the alarm condition and de-energizes the relay.
From the Digital Output SETUP pages described in to navigate to Output section 4.2.4.2.2 use Switching. In this case EA (Energize Above) is the active Switching mode. Depress to move to the next page. All of the Output to navigate to the Switching modes are listed. Use desired mode. In this case EA is selected for change. Depress to move to the next page The highlighted constant is associated with Safe (alarm off) setpoint where the alarm will release once speed has decreased to this point or below.
Use to navigate to the Alarm (on) constant. To change the constant depress while the constant is highlighted. Make changes as described with the Safe setpoint. When changes are complete, depress to exit the change. If no more changes are to be made on this page the user may depress Prev, , multiple times to exit and save changes as described in section 4.1.2. Below is a series of examples of selecting Digital Output Setup mode using TACHLINK.
65
Digital Output Setup figures continued.
4.2.5. Analog Output (TP30 and TT30) Only Analog output drives a current through devices such as recorders, meters, controllers and other instruments operated by a current loop. The output is precisely regulated to provide current that is proportional to the Normalized input speed or period when in Tachometer mode and count when in Counter mode. The proportional current is user-selectable in three ranges; 0 – 20mA, 4 – 20mA and –20 to +20mA. 4.2.5.1.
To enter Analog Output Setup in TACHLINK simply click on the corresponding tab. 4.2.5.1.1. Source Source is a Fixed Range Constant. Analog Output can be assigned to any input. The choices are Input A, Input B, Equation or Off. Input A & B are the normalized values from section 4.2.2.6. Equation uses the mathematical result from section 4.2.2.2 in addition to Normalization. The output can also be turned off by selecting Off. From the Analog Output SETUP pages described in section 4.2.5.
4.2.5.1.2. Range A Fixed Range Constant that refers to the three user-selectable ranges of proportional current; 0 to 20mA, 4 to 20mA and –20 to +20mA. From the Analog Output SETUP pages previously described use Range. Depress to navigate to to toggle through 0 to 20mA, 4 to 20mA and –20 to +20mA. When complete, navigate to the next constant using or save changes as described in section 4.1.2. 4.2.5.1.3.
From the Analog Output SETUP pages previously described, use to navigate to Min Value. To change the constant depress while it is highlighted. The sign preceding the base number is highlighted. Use or to change the sign. Depress changed for this example. Use required. Use or to navigate the cursor to the first digit to be to increment or decrement the number as for each additional digit to change. Change the exponent sign in the same manner as described for the sign preceding the base number.
Calibration can be accomplished either through the use of a resistance standard that represents the load or the actual load itself. The range of acceptable loop resistance is in the Specifications section. A calibrated, high resolution Voltmeter should be connected across the resistance or a high-resolution milli-ammeter connected in series with the load. When using a voltmeter, calculate the current with the formula I = E/R. Click on the Analog Output Calibration tab.
Repeat the measurement entry sequence. If successful, all boxes will indicate Pass. If Fail occurs, check all connections and values and repeat the calibration process. It is important to keep in mind rules related to loop compliance when running the tachometer on dc input voltage. For loop resistance values from 100Ω to 500Ω the dc input can be as low as 12 volts. For applications where 501Ω to 1000Ω are used the dc input voltage must be at least 20V. 4.2.6.
Alarm / Counter Reset, Alarm Hold-Off, Keypad Lock, Display Address and Change Security Code. All are discussed below. From the Main Screen depress Security to enter Security mode. When using TACHLINK, simply click on the Security tab. 4.2.6.1. Alarm Reset Alarm indications can be reset in a number of ways. Safe and Alarm setpoints in conjunction with hysteresis (already discussed in the Digital Output configuration section), an externally wired switch (see Section 3.4.
From Section 4.2.6, Alarm Reset is highlighted as soon as you enter the Security page. Depress to reset alarms. When using TACHLINK, simply click on Alarm Reset. 4.2.6.1.2. Counter Mode Alarm Reset In Counter Mode the reset function serves two purposes. First, the count is reset to zero or to the Preset value (discussed in section 4.2.3.6), second, any alarms based on count are reset.
When accessing the display, follow the same directions as in section 4.2.6.1.1 for the Tachometer Mode Alarm Reset. The only difference is that two buttons (Counter A Reset, Counter B Reset) are available to reset the counters individually. When using TACHLINK, simply click on CTR A or B Reset. 4.2.6.2. Alarm Hold-Off Hold-Off provides an addition layer of control with respect to the handling of alarms.
An alarm condition will be indicated as shown in the view of the Main screen. Enter Security as discussed in the previous section and depress to highlight Alarm Hold-off. Use to cycle between On and Off. In this example, Off has been selected. If On had been selected, the Alarm Hold-off indication would be as shown. When using TACHLINK, click on the Security tab, click on the down arrow for the Alarm Hold-Off pull down menu, select On or Off.
4.2.6.3. Keypad/Keyboard Lock TACHTROL and TACHPAK have several levels of security. Keypad/Keyboard Lock is the first layer of security. 4.2.6.3.1. Keypad Lock Keypad Lock applies only when using a TACHTROL display, and allows a user full access to menus to view data, but not to make changes. The lock applies only to the display on which it is entered. All displays must be configured for lock separately. A security code is not required for Keypad Lock to work. From section 4.2.6.2, use Lock.
4.2.6.4. Display Address Each TACHTROLplus, TACHTROL 10 & 30 display on the network requires an address from 1 to 8. When shipped each display address is 0 so that when it is placed on the network it will not conflict with other displays. Display Address is entered locally at the display only. If two displays have the same address, the network will not function properly and odd behavior will result. From the previous section use Display Address .
4.2.6.5.1. Creating / Changing a Security Code When a tachometer is shipped, no security code is active. On the Security page use to navigate to Change Security Code. Depress to initiate entry of a new code. Ensure Keypad Lock is Unlocked. Enter an eight-digit code using the , , and . If no arrow keys. When the code is entered depress code is desired, or to remove an old code depress once in place of digits. Re-enter the same code and depress .
When using TACHLINK, click on the Security tab, type in an eight-digit security code in the New Security Code field using digits 1 through 4, and tab off the field. When changes are complete, click on the Main tab and answer Yes / No to keep or discard the changes. If no security code is desired, press Enter in place of the digits and complete the remaining instructions. 4.2.6.5.2. Entering a Security Code Once a Security Code is active, entry to the Security page is restricted. Depress Security .
When using TACHLINK, click on the Security tab, and when asked, type in an eightdigit security code in the Security Code field using digits 1 through 4. Click OK. When changes are complete, click on the Main tab and answer Yes / No to keep or discard the changes. If no security code is desired, highlight the code, delete it, exit out to the Main tab and answer Yes to save.
4.2.7. Verify TACHTROL and TACHPAK tachometers are designed to allow verification of a user-defined configuration prior to committing the instrument and process to a “live” test. Verify allows the user to configure setpoints and outputs, then apply a simulation of the expected speeds or counts to the instrument to see how each will react. Each channel has an independent Verify constant.
From the main screen depress Menu to display the Input/Output configuration menus. Use to navigate to Verify. When Verify is highlighted, depress . Once on the Verify Mode page Input A is already highlighted. Depress to make the constant active for change. To change the constant depress while it is highlighted. The sign preceding the base number is highlighted. Use the sign. Depress or to change to navigate the cursor to the first digit to be changed for this example. Use number as required.
The main screen is shown here. The VERIFY indicator is on and highlighted. A is 1111.0. In this case the display has also been configured to display the result of any equation applied. Since display line E has been configured to show A, the Verify value is also displayed. Turn Verify off in the same manner it was turned on. When using TACHLINK, click on the Verify tab. Type in the Input A and Input B Values. Click the rotary switch to turn On/Off.
4.2.8. Diagnostics TACHTROL and TACHPAK tachometers are designed to allow verification of operation of the 2 Digital outputs and 2 Relay outputs prior to committing the instrument and process to a “live” test. The outputs can be switched On/Off manually to see if they are working. When Diagnostics mode is active (On) on any display, all other displays are locked until Diagnostics mode is released (Off). Diagnostics mode overrides current operation of the instrument.
When using TACHLINK, click on the Diagnostics tab. Click on the button associated with the output you wish to turn on. Click on the rotary button to make Diagnostics active. Changes do not need to be saved in order for Diagnostics to work. Outputs can be toggled on and off “live” while Diagnostics is active. When Diagnostics is on, DIAGNOSTICS MODE appears on the bottom status line.
4.2.9. Plotting (TACHLINK Only) TACHLINK provides a tool that enables the user to monitor and track the process over an extended period of time. The plotting tool is compatible with all TACHTROL and TACHPAK tachometers. The data is recorded in onesecond intervals and can be presented in both graphical or spreadsheet format and can be saved for future analysis.
In TACHLINK, click on the Plotting tab. Configure the applicable Thresholds by highlighting the data box and typing in the desired values. Repeat this for one or all of the Input sources. Click on Log To File if you wish to save the plot data as a spreadsheet. Use the default save-to location or Browse to a file location of your choice. Click on Plot Input A, Plot Input B or Plot Equation. This will make the plotting tool active and begin the plot. Separate windows will open for each plot.
4.2.9.2. Plotting Output The figure below shows that Input A is being plotted as the green trace. 900 is the Low Threshold (blue) and 1100 is the High Threshold (yellow).
The plot below shows that at approximately 11:22 and 24 seconds, the speed increased to 1150. When a Threshold is breached, the color of the plot turns red. After approximately 66 seconds, at approximately11:23 and 30 seconds, the signal returned to 1000 (between thresholds), then almost immediately dropped to 850, then back to 1000 in approximately 36 seconds.
4.2.9.2.1. Plotting Toolbar Above the plot screen is a toolbar to help manipulate the view. Most are standard Tracking Resume Tracking Pause Axes Scroll Windows icons with familiar function. Zoom Out/In Axes Zoom Zoom Box Select Edit Data Cursor Save Copy To Clipboard Print / Print Preview Tracking Resume: Use to continue tracking after it has been paused and to return all zoom, scroll and scaling changes back to nominal.
Select: Place the mouse pointer over the X or Y-axis and hold down the left mouse button. Moving the mouse up/down changes the Y-axis while left to right changes the Xaxis. Moving diagonally changes both axis simultaneously. Changes relate to the selection of either Axes Scroll or Axes Zoom. Zoom Box: Place the mouse pointer near a section of interest, hold down the left mouse button and open a box. Release the button to zoom. Data Cursor: Click on this icon to place a set of cross hairs over the plot.
Edit: Allows the user to configure the look of the plotting screen. Copy To Clipboard: Takes a screen shot of what is visible on the screen. The view can be pasted into a report based on Word, Excel, etc Save: Allows the screen-shot to be saved to a specific file location. Print/Print Preview: Allows the screen-shot to be viewed and printed. When Log To File is checked during plotting, a spreadsheet is developed that contains critical data.
4.2.10. Display (TACHTROL series only) While the function of the tachometer is defined by a set of global parameters stored in the tachometer instrument, each display can be configured uniquely to customize the content of what is seen at any given display. This configuration is stored locally at each display. From the Main screen, depress Menu, , to list the Change menus. Depress Use to select Change Tach menu. to navigate to Display / Keypad.
4.2.10.1. Display/Keypad Setup The setup menu allows the user to determine what is displayed on Line 1, Line 2, if the display Backlight times out, and the Contrast of the display screen. 4.2.10.1.1. Display Line 1 & 2 Display Line 1 and Line 2 correspond to lines on the display. In the figure shown, Line 1 is displaying A and its data while Line 2 is displaying E and its data. The user may select Input A, B or Equation to be displayed or turn off the line by selecting Off.
4.2.10.1.3. Contrast Adjusts the contrast between the displayed characters and the display background. Selectable from 50 (low) to 90 (high). User determines what is best for specific application lighting. 60 to 70 typically provides the best contrast range. From the previous section depress constant active. Use and to navigate to Contrast. Depress to make the to increase or decrease the Contrast value. When complete, depress all changes are complete, depress Prev .
5. Example Applications Below are some examples of typical or atypical applications, depending on your point of view. The first example shows what a simple tachometry application might look like while the second illustrates an application of moderate complexity including use of failsafe relay configuration. The third example is one that will utilize the tachometer instrument to its fullest.
5.1.3. TACHPAK 10 Programming & Setup (rpm) This instrument will be set to run in Tachometer mode and configured to monitor and report on the pump speed. No displays are in use and therefore programming can only be accomplished through TACHLINK. Input Setup 5.1.3.1. Tachometer Mode (section 4.2.2) All setup will be performed in Tachometer mode. 5.1.3.2. Direction (section 4.2.2.1) Direction is set to off 5.1.3.3. Equation & Units (section 4.2.2.
5.1.3.7. Units (section 4.2.2.6.2) Enter units as “rpm” 5.1.3.8. Input Type (section 4.2.2.6.3) Select Frequency. 5.1.3.9. Min Freq(section 4.2.2.6.4) Since it understood low frequency is not part of the normal operating condition of this application, set the min. frequency as high as possible to aid the tachometer in determining zero speed (stopped) condition sooner. Min frequency = 100 Hz Relay Output 1 Setup 5.1.3.10. Source (section 4.2.4.1) Navigate back to Relay Output 1 setup.
5.1.4. Use Verify to validate setup (section 4.2.7) 5.2. Intermediate setup A critical mixing operation must be monitored and maintained. A 4”, 94 tooth, 24 diametral pitch target is mounted to the mixer driveshaft. The user wants to be able to visually see the speed displayed in RPM, and have a 4-20mA output scaled to the speed range. The user also needs to set up 4 alarms. Alarm 1 & 2 must be failsafe and therefore will utilize the mechanical relays with Normally Closed contacts.
5.2.3. TACHTROL 30 Programming & Setup (Speed) This instrument will be set to run in Tachometer mode and configured to monitor and report on speed of the mixer. Programming can be accomplished either through the TT display or TACHLINK. Input Setup 5.2.3.1. Tachometer Mode (section 4.2.2) All setup will be performed in Tachometer mode. 5.2.3.2. Direction (section 4.2.2.1) Direction is not utilized, set to None. 5.2.3.3. Equation & Units (sections 4.2.2.2 and 4.2.2.
5.2.3.8. Input Type (section 4.2.2.6.3) Select Frequency. 5.2.3.9. Min Freq (section 4.2.2.6.4) Min frequency = 0.100 Digital Output 1 Setup (Over speed alarm) 5.2.3.10. Source (section 4.2.4.1) Navigate back to Digital Output 1 setup. Select Input A for source. 5.2.3.11. Latch Mode (section 4.2.4.2.1) Select Off 5.2.3.12. On / Off Delay (section 4.2.4.2.2) No delay is desired. Enter 0.00 for both. 5.2.3.13. Output Switching (section 4.2.4.4.
5.2.3.17. On / Off Delay (section 4.2.4.2.2) No delay is desired. Enter 0.00 for both. 5.2.3.18. Output Switching (section 4.2.4.4.3) Relay 1 is being used as failsafe for speeds in excess of 440 rpm. • Select DA (de-energize above) • Enter 4.400e+2 for the Alarm setpoint. • Enter 3.500e+2 for the Safe setpoint. Relay Output 2 Setup(Failsafe Underspeed alarm) Navigate to Digital Output 2 setup. Make all constants the same except for Output switching. 5.2.3.19. Output Switching (section 4.2.4.4.
Security Setup 5.2.3.23. Alarm Hold-Off (section 4.2.6.2) Set to Off. 5.2.3.24. Keypad Lock (section 4.2.6.3) Keypad lock is local to each display and must be set to Locked in order to protect the keypad from changes. Each display must be either Locked or Unlocked individually. 5.2.3.25. Display Address(section 4.2.6.4) Each display must have its own address on the LAN. Set each display to a different number. 5.2.3.26. Change Security Code (section 4.2.6.
5.3. Advanced Setup 5.3.1. Problem Description A motor used to drive a lead-screw attached to a linear stage used in a manufacturing process must be monitored. The motor will rotate both clockwise (cw) and counterclockwise (ccw) in normal use. It is important to know how fast the linear speed of the stage is as well as its direction. The user also wants to be able to determine the stages’ displacement and have alarms set to indicate if displacement has exceeded 4 inches from “home” in either direction.
5.3.2. Material Requirements 1 TACHTROL 30 (TT30): Use for speed with analog output requirement 1 TACHTROL 10 (TT10): Use for displacement 2 TACHTROL plus (TT plus): Use as remote displays for tachometer instruments 1 AI-TEK Bi-Directional Sensor (Shown for illustrative purposes. Use encoder where a high level of precision is required. 5.3.3. Connections Instrument configuration can be done on the bench and tested using Verify and Diagnostics.
Input Setup 5.3.4.1. Counter Mode (section 4.2.3) All setup will be performed in Counter mode. 5.3.4.2. Direction (section 4.2.3.1) Direction is utilized to allow the instrument to increase counts in a forward (target cw) direction and decrease counts in a reverse (target ccw) direction. Since an AI-TEK Bi-directional sensor is being used, the direction logic signal will be utilized. The instrument will be set to count up in the forward (target cw) direction with the Direction Bit High. 5.3.4.3.
5.3.4.8. Preset (section 4.2.3.6) No preset is required. Set to 0.000e+0 Relay Output 1 Setup 5.3.4.9. Source (section 4.2.4.1) Navigate back to Relay Output 1 setup. Select Input A for source. 5.3.4.10. Latch Mode (section 4.2.4.2.1) Select Off 5.3.4.11. On / Off Delay (section 4.2.4.2.2) No delay is desired. Enter 0.00 for both. 5.3.4.12. Output Switching (section 4.2.4.4.
Keypad lock is local to each display and must be set to Locked in order to protect the keypad from changes. Each display must be either Locked or Unlocked individually. 5.3.4.16. Display Address(section 4.2.6.4) Each display must have its own address on the LAN. Set each display to a different number. 5.3.4.17. Change Security Code (section 4.2.6.5) Set the 8-digit security code using 1 through 4 keys.
Direction is utilized to allow the instrument to increase positive speed in a forward (target cw) direction and decrease speed in a reverse (target ccw) direction. Since an AI-TEK Bi-directional sensor is being used, the direction logic signal will be utilized. The instrument will be set to increase positive speed in the forward (target cw) direction with the Direction Bit High. 5.3.5.3. Equation & Units (sections 4.2.2.2 and 4.2.2.
Digital Output 1 Setup 5.3.5.10. Source (section 4.2.4.1) Navigate back to Digital Output 1 setup. Select Input A for source. 5.3.5.11. Latch Mode (section 4.2.4.2.1) Select Off 5.3.5.12. On / Off Delay (section 4.2.4.2.2) No delay is desired. Enter 0.00 for both. 5.3.5.13. Output Switching (section 4.2.4.4.1) Digital 1 is being used to ensure that the linear speed does not exceed 1 inch per minute in the forward (positive) direction. • Select EA (energize above) • Enter 1.
5.3.5.16. Range (section 4.2.5.1.2) Set range to –20 to +20 mA. 5.3.5.17. Min / Max Value (section 4.2.5.1.3) Set the maximum and minimum values of the speed range to monitor. • Min Value = -1.000e+0 • Max Value = +1.000e+0 Security Setup 5.3.5.18. Alarm Hold-Off (section 4.2.6.2) Set to Off. 5.3.5.19. Keypad Lock (section 4.2.6.3) Keypad lock is local to each display and must be set to Locked in order to protect the keypad from changes.
6. Specifications Specifications in this manual are subject to change and for reference only. See applicable AI-TEK Instruments, LLC Product Specifications. Electrical All specifications rated at 25°C unless otherwise specified. Input Power Power consumption 3.5 watts, typical for tachometer only Add 0.5 watts per remote display Add 2.0 watts for 12v out DC Voltage 12-30 volts. Reverse polarity protected. Available on terminal blocks and din rail in parallel (TACHPAK only).
Input Sensitivity Upper and Lower Limit: +/-30 volts max. (AC or DC). Logic 0 and Logic 1 threshold is user adjustable from 0 to 28 volts in approx. 20mV steps +/-3%. 200 mV pk absolute minimum input sensitivity. Common Mode Rejection Ratio >40 db @1kHz typical Electrical Isolation Channel A, B and Direction share common ground Channel A , B or Direction to output: 500 Vrms Channel A , B or Direction to power ground: 500 Vrms Verify and Reset Frequency Essentially DC, Minimum Pulse Width: 250 µsec.
Electrical Isolation Channel A, B and Direction share common ground Direction to output: 500 Vrms Direction to ground: 500 Vrms Output Characteristics Relays (Mechanical) Physical Form C Contact Rating 10A @125/250 Vac, 6A @ 277 Vac, 5A @ 100Vdc 2500 VA Response Time (operate and release) Input to output 16.5 msec max. (10msec relay only) Electrical Isolation 1500 Vrms, 1 minute coil to contacts Switchpoint Accuracy Internal instrument accuracy to alarm setpoint: .005% up to 16kHz, .
Analog Output Ranges 0 to 20mA, 4 to 20mA, -20 to +20mA; user selectable Accuracy Internal instrument accuracy: .005% plus; 0.05% of full scale range at room temp with 400 ohm load 0.1% over temp range and load range. Unit is factory calibrated. Can be re-calibrated using TACHLINK. Resolution Step size: 610 nanoamps per lsb. 16 bit D/A Linearity 0.02% typical Loop Impedance 100-1000 Ω Response Time Input to output 6.55 msec+ 1 msec settle at 1kΩ (worst case) to .
cable should not be used. With #18 wire max run to a single display is 1000 ft (305m). Response time: 1 second update to all displays, PC, and RS485 Electrical Isolation 500Vrms to ground continuous Utility RS485 Full access to TACHLINK, single drop only Communication Protocol RS485: 19.2kbaud, 8-n-1 protocol, Half duplex, Tachometer is bus master Maximum Transmission Distance 8000 ft (2400m) Electrical Isolation 500Vrms to ground continuous USB Full access to TACHLINK, Version 1.1 / 2.
Environmental Operating Temperature -10 to 55°C Thermal Cycle 50 cycles: -40°C to +80°C 200 cycles: -10°C to +55°C Dielectric Strength See applicable Specifications sub-sections Humidity 90% RH non-condensing per IEC 654-1, IEC 68-2-3 Vibration • MIL-STD-810C Environmental Test Methods, method 514.2, procedure VIII, figure 514.2-6, curve V; 1.5g’s 10-2000Hz, 5.5 hrs. / axis, 3 axis • IEC 60068-2-6, 10-150Hz, 2g, 10 sweep cycles / axis, 3 axis Shock • MIL-STD-810C Environmental Test Methods, method 516.
7.
8. Annex 1: Startup Databases Access the following databases through TACHLINK as described in section 4.2.1.1.
9.
