Applicable Systems
Steam Trap
Symptoms
The Steam Trap reports a safety function activation. The safety circuit was triggered, removing motor torque and halting the drive.
Possible Causes
- Safety input signal activated by an external safety relay or E-stop
- Safety relay wiring fault causing false trigger
- Safety function configuration does not match the application requirements
Troubleshooting Steps
- Step 1: Check the safety input wiring and verify the safety relay status
Safety relay is in the expected state - Step 2: Verify the safety function configuration parameters in the drive
Safety configuration matches the application - Step 3: Reset the safety circuit by clearing the E-stop and cycling the safety relay
Safety function releases and motor torque is restored
How to Reset
To reset: Clear the safety condition and reset the safety relay, then restart.
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Source: Spirax Sarco Steam System Manual, Spirax Sarco Limited
Category: Boiler
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