EWM T5.01-DC Comfort 3.0 Operating Instructions Manual page 64

Rectifying faults
Error messages (power source)
Error 7: Low coolant level
Category B
 Low flow rate.
Fill with coolant.

Check coolant flow - remove kinks in the hose package.

Adjust the flow threshold

Clean the cooler.

 Pump does not turn.
Turn the pump shaft.

 Air in the coolant circuit.
Vent the coolant circuit.

 The hose package is not filled with coolant.
Switch the machine off and on > pump running > filling process.

 Operation with a gas-cooled welding torch.
Deactivate the torch cooling.

Connect the coolant feed and return with a hose bridge.
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Error 8: Shielding gas error
Category A, B
 No shielding gas.
Check the shielding gas supply.

 The pre-pressure is too low.
Remove kinks in the hose package (nominal value: 4-6 bar pre-pressure).
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Error 9: Overvoltage on secondary
 Overvoltage at the output: Inverter error.
Request service.

Error 10: Earth fault (PE error)
 Connection between welding wire and machine casing.
Remove the electrical connection.

 Connection between welding circuit and machine casing.
Check the connection and routing of the earth wire / welding torch.

Error 11: Fast shutdown
Category A, B
 Remove the logical signal "Robot ready" during the process.
Eliminate errors on the higher-level control.

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099-00T501-EW501
1.8.2022