THOMSON TSC 80 - V2.1 Service Manual
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THOMSON TSC 80 - V2.1 Service Manual

THOMSON TSC 80 - V2.1 Service Manual

Transfer switch controller
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TSC 80
TRANSFER SWITCH CONTROLLER
INSTALLATION, OPERATING &
SERVICE MANUAL

Software Version 2.1

PM063 Rev 6 09/01/01
th
9087A – 198
Street, Langley, BC Canada V1M 3B1
Telephone (604) 888-0110
Telefax (604) 888-3381
E-Mail: info@thomsontechnology.com
www.thomsontechnology.com

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Summary of Contents for THOMSON TSC 80 - V2.1

  • Page 1: Software Version

    TSC 80 TRANSFER SWITCH CONTROLLER INSTALLATION, OPERATING & SERVICE MANUAL Software Version 2.1 PM063 Rev 6 09/01/01 9087A – 198 Street, Langley, BC Canada V1M 3B1 Telephone (604) 888-0110 Telefax (604) 888-3381 E-Mail: info@thomsontechnology.com www.thomsontechnology.com...

  • Page 3: Table Of Contents

    3.1. AUTOMATIC SEQUENCE OF OPERATION 3.1.1. NORMAL OPERATION 3.1.2. ABNORMAL OPERATION 3.2. TEST MODES 3.2.1. UTILITY POWER FAIL SIMULATION (LOAD TEST) 3.2.2. AUTOMATIC PLANT EXERCISE TEST 3.2.3. FOUR FUNCTION REMOTE TEST (FTS4 OPTION) 3.2.4. REMOTE TEST 3.3. TRANSFER FAIL FAULT RESET 3.4.
  • Page 4 TSC 80 CONFIGURATION INSTRUCTIONS 4.1. CONFIGURATION JUMPERS 4.1.1. SYSTEM VOLTAGE 4.1.2. SYSTEM FREQUENCY 4.1.3. SYSTEM PHASES 4.1.4. GEN EXERCISE LOAD TEST MODE (NO XFER) 4.1.5. SECURE 4.2. TSC 80 ADJUSTMENT POTENTIOMETERS 4.2.1. UTILITY UNDER VOLTAGE SETPOINT 4.2.2. GENERATOR UNDERVOLTAGE SETPOINT 4.2.3.

  • Page 5: Introduction

    TSC 80 TRANSFER SWITCH CONTROLLER INTRODUCTION 1.1. PRODUCT REVISION HISTORY The following information provides an historical summary of changes made to this product since the original release. Software Version 1.0 04/11/19 Original version 1.1 05/05/10 Software updated to incorporate the following: Revise potentiometer control directions to match revised printed circuit board silkscreen text.

  • Page 6: General Information

    • surface and maintain contact while handling the equipment, a grounded wrist strap can/should also be utilized). Do not touch any components on the printed circuit board with your hands or any • other conductive equipment. Do not place the equipment on or near materials such as Styrofoam, plastic and •...

  • Page 7: Service Display Module (Sdm)

    1.4.2. SYSTEM PHASING-HIGH LEG DELTA SYSTEMS When the transfer switch is connected to 3 phase 4 wire delta systems, the “High” leg (Phase B, colored Orange), must be connected to Phase B of the Utility and/or Generator supply.

  • Page 8: Remote Start Contact Field Wiring

    Failure to do so may cause personal injury or death. 1.4.3. REMOTE START CONTACT FIELD WIRING As a minimum, the remote engine start control field wiring shall conform to the local regulatory authority on electrical installations. Field wiring of a remote start contact from a transfer switch to a control panel should conform to the following guidelines to avoid possible controller malfunction and/or damage.

  • Page 9: Dielectric Testing

    “powered” contact will damage the transfer controller. 1.4.4. DIELECTRIC TESTING Do not perform any high voltage dielectric testing on the transfer switch with the TSC 80controller connected into the circuit as serious damage will occur to the controller.

  • Page 10: Description

    DESCRIPTION The TSC 80 controller utilizes microprocessor-based design technology, which provides high accuracy for all voltage sensing and timing functions. The TSC 80 is factory configured to control all the operational functions and display features of the automatic transfer switch.
  • Page 11 TSC 80 TRANSFER SWITCH CONTROLLER FIGURE 1- TSC 80 Controller Lexan Faceplate PM063 Rev 5 09/01/01 Thomson Technology...

  • Page 12: Printed Circuit Board

    LD ON GEN LD ON UTIL TB2-5 FIGURE 2 The printed circuit board (PCB) is shown in FIGURE 2. The PCB contains the following user interface items: 2.2.1. TERMINAL BLOCKS Terminal blocks are located on the PCB as follows: high voltage sensing terminal block (120-600VAC).

  • Page 13: Diagnostic Led's

    This LED flashes on and off at irregular intervals, which indicates the microprocessor is functioning normally. TRANSFER TO UTILITY This LED is illuminated whenever the TSC 80 is initiating a signal to transfer to the Utility supply. TRANSFER TO GEN This LED is illuminated whenever the TSC 80 is initiating a signal to transfer to the Generator supply.

  • Page 14: Adjustment Potentiometers

    The TSC 80 controller utilizes eight adjustment potentiometers, which are mounted on the printed circuit board as per FIGURE 2. They are used for adjustment of all time delays, voltage and frequency setpoints. All potentiometers will be set to factory default values.

  • Page 15: Application Information

    The TSC 80 can accept direct AC voltage sensing inputs on the generator and utility supplies from 120-600VAC (nominal). Note: Direct input voltage sensing can only be used when the system utilizes a 3 phase, 4 wire distribution system which has the neutral conductor solidly grounded. For 3 phase, 3 wire systems (i.e.
  • Page 16 600VAC L-L, 347VAC L-N 480VAC L-L, 277VAC L-N 380VAC L-L, 220VAC L-N 208VAC L-L, 120VAC L-N 1 PT REQUIRED FOR TRANSFER SWITCH MECHANISM POWER (MUST BE SIZED TO SUIT POWER REQUIREMENTS). NOTE: UTILITY VOLTAGE SENSING AND CONTROL POWER SHOWN ONLY.

  • Page 17: Ac Control Power Input

    Independent AC control power is required from both utility and generator supplies. AC control power is utilized for internal TSC 80 control circuits and external control device loads. The TSC 80 requires approximately 6 VA power for internal control circuits.

  • Page 18: Operating Instructions

    When the utility supply voltage is restored to above the present values (70 - 95% of rated adjustable) on all phases, a transfer return delay circuit will be initiated. Following expiry of the utility transfer return timer (0 - 30 min.

  • Page 19: Abnormal Operation

    (0-30 seconds adjustable) setting. Once the time delay expires, the re-transfer sequence will be completed. An engine cooldown timer circuit will be initiated once the load is transferred from the generator supply. Following expiry of the cooldown delay period (0 - 30 min.
  • Page 20 1 second when the source power switching device opens and therefore the “NEUTRAL POSITION TIME” never times out. The default setting of this timer (10 seconds) is intentionally set long so that it will not pre-maturely stop the ATS mechanism.

  • Page 21: Test Modes

    A (Normal Steady State Condition) are sensed (limit switch and/or loss of load voltage). For example, if the ATS mechanism fails to move (i.e. due to broken rod, motor failure or manual release plunger not re-engaged), the total time before a transfer fail will be initiated is 31 seconds (i.e.

  • Page 22: Automatic Plant Exercise Test

    Once the mode is initiated, the engine will immediately start and transfer on load (i.e. if configured for On Load Test) once nominal voltage and frequency levels have been obtained. The engine will remain operating on load until the plant exercise time delay period of 30 minutes expires, then the load will re-transfer back to the utility supply.

  • Page 23: Four Function Remote Test (Fts4 Option)

    Automatic position. 3.2.3. FOUR FUNCTION REMOTE TEST (FTS4 OPTION) The function of the Four Position Test Switch Input is to allow operators to select various operating scenarios for test or maintenance purposes, in addition to the use of the faceplate mounted pushbuttons.

  • Page 24: Remote Test

    3.3. TRANSFER FAIL FAULT RESET To reset a Transfer Fail condition (i.e. When either the Load on Gen or Load on Utility LEDs are flashing and the ATS load is transferred to the alternate source), both Lexan faceplate pushbuttons (i.e. UTILITY POWER FAIL SIMULATE & GENERATOR EXERCISE MODE) must be held on for approximately 5 seconds until all LEDs on the Lexan start flashing and UTILITY POWER FAIL SIMULATE LED flashes in opposition.

  • Page 25: Timer Bypass

    TSC 80 TRANSFER SWITCH CONTROLLER NOTE The Lamp Test Function will also clear a transfer failure alarm and will allow active timers to be bypassed if the lamp test is held on for longer than 5 seconds. 3.5. TIMER BYPASS To bypass an active timing sequence (e.g.

  • Page 26: Tsc 80 Configuration Instructions

    To activate the required system voltage setting, a jumper must be placed across the 2 pins, adjacent to the text on the PCB. Only one jumper must be placed on the voltage selection jumpers. Failure to do so will cause improper operation.
  • Page 27 4. If multiple jumpers are incorrectly left on the voltage selection pins, the highest voltage selected will have precedence. When a system voltage is selected, the TSC 80’s utility and generator under voltage setpoint percentage setting will be automatically programmed to correspond to the sensing input voltage (e.g.
  • Page 28 208V to 600V primary connection) To obtain the most accurate setting of the potentiometer (other than visually on the printed circuit board), a Service Display Module (SDM) is recommended. For other non-standard system voltages, the following formula can be used:...

  • Page 29: System Frequency

    TSC 80 POT Setting = 78% NOTE The TSC 80 voltage jumper setting must be set to be equal to the nominal system voltage level or the next highest setting available (e.g. 440V system voltage must use 480V jumper setting).

  • Page 30: Gen Exercise Load Test Mode (No Xfer)

    A configuration jumper is provided to select the desired testing mode (i.e. load test with transfer or no-load test) for the 7 day/30 minute generator exercise function or for a remotely initiated Test mode. One jumper is provided to set the desired test mode as follows: Load Test Gen Exercise Test Mode: no program jumper is required.

  • Page 31: Tsc 80 Adjustment Potentiometers

    Eight adjustment potentiometers are provided on the TSC 80 controller printed circuit board. Refer to Figure #2 which illustrates how the potentiometers are arranged on the printed circuit board. A listing of available features which are user adjustable via the PCB potentiometers is shown in Table #1.

  • Page 32: Utility Under Voltage Setpoint

    70-90% 4.2.1. UTILITY UNDER VOLTAGE SETPOINT A potentiometer is provided to adjust the setpoint of the TSC 80’s utility under voltage sensor. The under voltage setting is expressed in percentage of system voltage setting with an adjustable range of 70-95% (e.g. If system voltage configuration jumper is set for 600V, an 80% under voltage setting will correspond to an actual 540VAC setpoint.)

  • Page 33: Generator Undervoltage Setpoint

    The under voltage sensor will reset to normal when the generator voltage rises 5% above the “drop-out setting (i.e. differential value). Example: if under voltage is adjusted to an 80% drop-out value, it will reset at 85% voltage. The 5% differential value is not programmable.

  • Page 34: Engine Start Delay

    Select desired Engine Start time delay in seconds. The range of setting is 0 to 60 seconds. If no delay is required, set this time delay to zero.

  • Page 35: Engine Warmup Delay

    The engine start signal will be maintained until expiry of the cooldown delay timer. The range of setting is 0 to 30 minutes. If no delay is required, set this time delay to zero. Refer to Table 1 for the factory default settings of the Engine Cooldown Delay timer.

  • Page 36: Tsc 80 Typical Connection Diagram

    POWER (close to activate) 115 VAC LOAD ON GENERATOR SUPPLY INPUT (120VAC) NO CONNECTION XFER TO TRANSFER TO GENERATOR OUTPUT RATED 10A, 120/250VAC, 10A, 30VDC RES. MAX. Utility Interlock A (L1) SYSTEM GROUND UTILITY SUPPLY SENSING B (L2) 120-600VAC 50/60Hz...

  • Page 37: Tsc 80 Specifications

    - 6VA nominal (no external load connected) VOLTAGE SENSING: • - Direct 120-600VAC nominal, single or 3 phase - 50/60Hz - +/- 1.0% accuracy of setting @ 25° C OPERATING TEMPERATURE: • - 40° C to +50° C (TSC 80) OUTPUT CONTACTS (Form C, 10A,120/250VAC resistive)

  • Page 38: Troubleshooting

    TSC 80 TRANSFER SWITCH CONTROLLER TROUBLESHOOTING A number of problems can cause the TSC 80 controller not to function properly. Refer to the following list of typical problems. Consult the factory for any detailed information or for any problems not listed.
  • Page 39 Verify remote engine control panel is set for automatic when it should mode. Verify the FTS4 selector is not in the Off, Engine Start or Test positions No time delay when there should be Verify time delay function setting of TSC 80 controller...

  • Page 40: Tsc 80 Replacement Parts

    When ordering replacement parts please provide the following information: 1. Transfer Switch Model code (e.g. TS 873AA0200AS) 2. Transfer Switch Serial Number (e.g. W-022345) The above information can be found on the transfer switch rating plate located on the outside of the ATS door. NOTE There are no user serviceable/replaceable components located on the TSC 80 printed circuit board.

  • Page 41: Notes

    TSC 80 TRANSFER SWITCH CONTROLLER NOTES ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________...

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Tsc 80

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