THOMSON TS 910 - User Manual

Questions and Answers

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Emily PetersJul 31, 2025
What to do if THOMSON TS 910 will not re-transfer to utility source upon restoration?
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  Denise GrahamJul 31, 2025
  Several factors can prevent the THOMSON Switch from re-transferring to the utility source after power is restored. Here's what to check: * Ensure the TSC 9 Isolation plug is properly reconnected. * Deactivate any active test modes. * Confirm the utility voltage is above 80% of its rated value. * Inspect and secure any loose control connections. * Replace the utility solenoid coil if it's defective. * Verify the correct voltage configuration jumper setting on TSC 9. * Replace the TSC 9 controller if it's defective. * Address any "Transfer Fail" alarms on TSC 9 before resetting. * Wait for the in-phase condition to be detected before transfer.
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melissachandlerAug 7, 2025
Why THOMSON TS 910 transfers to generator source without a power failure on the utility source?
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  Kristin SimmonsAug 7, 2025
  If your THOMSON Switch transfers to the generator source when there is no power failure, it might be due to these reasons: * A TEST or EXERCISE mode might be activated, so deactivate it. * The utility supply voltage might be less than 70% on one or both phases of nominal voltage, so ensure the utility supply voltage is at least 70% on both phases. * The TSC 9 might have the incorrect voltage configuration jumper setting for system voltage, so set the correct voltage configuration jumper setting on TSC 9. * The TSC 9 controller might be defective, so replace the defective TSC 9 controller.
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Gregory TurnerAug 15, 2025
What to do if THOMSON Switch will not transfer to generator source upon failure of utility source?
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  Misty BlairAug 16, 2025
  If your THOMSON Switch fails to transfer to the generator source when the utility source fails, consider these potential causes: * Ensure the TSC 9 Isolation plug is securely reconnected. * Verify that the generator set is producing sufficient voltage and frequency and that the output circuit breaker is closed. * Confirm that TSC 9 has the correct voltage configuration jumper setting for your system's voltage. * Check the TSC 9 timer setting and allow the warm-up time delay to complete. * Inspect and secure any loose control connections. * Replace the generator solenoid if it's defective. * Replace the TSC 9 controller if it's defective. * Address any "Transfer Fail" alarms on TSC 9 before resetting. * Wait for the in-phase condition to be detected before transferring.
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ashley50Aug 23, 2025
How to troubleshoot if generator does not start up or stop when it should in THOMSON TS 910?
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  Billy EllisAug 23, 2025
  If the generator in your THOMSON Switch doesn't start or stop as expected, or if there's no time delay when there should be, check the following: * Ensure the remote engine control panel is set to automatic mode. * Verify that the engine start wiring is connected to the correct terminals on the TSC 9 controller. * Check and secure the engine start wiring at both the transfer switch and the engine control panel. * Verify the time delay setting of the TSC 9 controller and adjust if necessary.