Rectifying Faults; Error Messages (Power Source); Dynamic Power Adjustment - EWM T 4.02 - AC/DC Comfort 2.0 Operating Instructions Manual

Rectifying faults

5
All products are subject to rigorous production checks and final checks. If, despite this, something fails to
work at any time, please check the product using the following flowchart. If none of the fault rectification
procedures described leads to the correct functioning of the product, please inform your authorised
dealer.
5.1

Error messages (power source)

A welding machine error will be signalled by an error code (see table) on the control display. In
the event of an error, the power unit shuts down.
The display of possible error numbers depends on the machine version (interfaces/functions).
•
Document machine errors and inform service staff as necessary.
Error message
Err 1
Err 2
Err 3
Err 4
Err 5
Err 6
Err 7
Err 8
Err 9
Err 10
Err 11
Err 12
5.2

Dynamic power adjustment

This requires use of the appropriate mains fuse.
Observe mains fuse specification!
This function enables aligning the machine to the mains connection fusing to avoid continuous tripping of
the mains fuse. The maximum power input of the machine is limited by an exemplary value for the
existing mains fuse (several levels available).
You can predefine this value in the machine configuration menu > see 4.6 chapter using parameter
The function automatically adjusts the welding power to an uncritical level for the mains fuse.
099-00T402-EW501
24.04.2018
Possible cause
Water fault
Only occurs if a water cooling
unit is connected.
Temperature error
Electronics error
see "Err 3"
see "Err 3"
Balancing error in voltage
recording.
Balancing error in current
recording.
Error in one of the electronics
supply voltages or excess
temperature of the welding
transformer.
Low voltage
Secondary overvoltage
Overvoltage
VRD (open circuit voltage
reduction error)
Rectifying faults
Error messages (power source)
Remedy
Ensure that sufficient water pressure can be built
up. (e.g. top up water)
Allow machine to cool down.
Switch machine off and on again.
If the fault persists, inform the service
department.
see "Err 3"
see "Err 3"
Switch machine off, place the torch on an
insulated surface and switch on again.
If the fault persists, inform the service
department.
Switch machine off, place the torch on an
insulated surface and switch on again.
If the fault persists, inform the service
department.
Allow machine to cool down. If the error message
persists, switch the machine off and back on
again.
If the fault persists, inform the service
department.
Switch off the machine and check the mains
voltage.
Switch machine off and on again.
If the fault persists, inform the service
department.
Switch off the machine and check the mains
voltage.
Inform Service
.
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