EWM M3.7X-O Operating Instructions Manual page 75

Error 48: Ignition error
Category B
 No ignition at process start (automated machines).
Check the wire f eeding

Check the load cable connections in the welding circuit.

Clean corroded surfaces on the workpiece before welding if necessary.
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Error 49: Arc interruption
Category B
 An arc interruption occurred during welding with an automated system.
Check the wire f eeding.

Adjust the welding speed.

Error 50: Program number
Category B
 Internal error.
Request service.

Error 51: Emergency stop
Category A
 The external emergency stop circuit has been interrupted.
Check the emergency stop circuit and eliminate the cause of the error.

 The emergency stop circuit of the power source has been activated (internally configurable).
Deactivate the emergency stop circuit.

Error 52: No wire feeder
 Af ter switching on the automated system, no wire feeder (DV) was detected.
Check or connect the control cables of the wire f eeders.

Check the identification number of the automated wire f eeder (for 1DV: number 1, for 2DV: each
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a wire f eeder with number 1 and a wire feeder with number 2).
Error 53: No wire feeder 2
Category B
 Wire f eeder 2 was not detected.
Check the control cable connections.
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Error 54: VRD errors
 Error in the open-circuit voltage reduction.
If necessary, disconnect the external machine from the welding circuit.

Request service.
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Error 55: Excess wire feeder current
Category B
 Excess current detected in the wire feed mechanism.
Do not lay the liner in tight radii.

Check the liner f or ease of movement.
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Error 56: Mains phase failure
 One phase of the mains voltage has failed.
Check mains connection, mains plug and mains fuses.
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099-5TLPXQ-EW501
15.12.2022
Rectifying faults
Error messages (power source)
75