EWM M3.7X-O Operating Instructions Manual page 71

Error 6: Mains undervoltage
 Mains voltage is too low.
Check the mains voltages and compare them with the connection voltages of the power source.
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Error 7: Low coolant level
Category B
 Low f low rate.
Fill with coolant.
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Check coolant flow - remove kinks in the hose package.
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Adjust the flow threshold
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Clean the cooler.
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 Pump does not turn.
Turn the pump shaft.
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 Air in the coolant circuit.
Vent the coolant circuit.
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 The hose package is not filled with coolant.
Switch the machine off and on > pump running > filling process.
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 Operation with a gas-cooled welding torch.
Deactivate the torch cooling.
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Connect the coolant feed and return with a hose bridge.
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Error 8: Shielding gas error
Category A, B
 No gas.
Check the gas supply.
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 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: Secondary overvoltage
 Overvoltage at the output: Inverter error.
Request service.
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Error 10: Earth fault (PE error)
 Connection between welding wire and machine casing.
Remove the electrical connection.
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 Connection between welding circuit and machine casing.
Check the connection and routing of the earth wire / welding torch.
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Error 11: Fast shut-down
Category A, B
 Remove the logical signal "Robot ready" during the process.
Eliminate errors on the higher-level control.
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099-5TLPXQ-EW501
15.12.2022
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Rectifying faults
Error messages (power source)
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