GU-D08 80173-109-01 2H060121-031 | SGCT Soft Starter Thyristor

Ensure you have the following equipment available in order to perform testing tasks.
• SPS test power harness (part no. 80018-695-51)
• Digital multimeter
1. Disconnect the snubber connection to J1 of the SPS board.
2. Connect one of the SPS test power harness connectors to the SPS J1 connector.
3. Plug the AC input end of the SPS test power harness into the appropriate drive receptacle. The green LED (DS1) at the front of the board should be on.
4. Measure between the TP4 and TP6 on the SPS board. It should be at a level of √2 x VINRMS. This can range from 120V (85V input) to 375V (265V input).
5. Measure between TP15 and TP14 on the SPS board. It should be at a level of 20V DC, +/- 400 mV. If these readings are not correct, replace the tested SPS board with a new board and return the faulty board to the factory.