Cause: Emergency Stop - safety circuit
is open
Remedy: Contact After-Sales Service
Cause: The VRD (Voltage Reduction
Device) function has interrupted
the welding process
Remedy: Contact After-Sales Service
Service codes
displayed in con-
junction with the
digital gas con-
trol option
Cause: The gas watchdog option has
detected that there is no gas
pressure
Remedy: Check protective gas shield
supply, connect new gas cylin-
ders or gas cylinder valves/
open gas pressure regulator
Displayed Ser-
vice codes in
conjunction with
cold wire-feed
unit
The following abbreviations are used for the service codes shown in conjunction with
cold wire-feed units:
KD = Cold wire-feed unit
PPU = Push-pull unit
vDmin = minimum wire feed speed
vDma
x
= maximum wire feed speed
Cause: The external supply voltage has
dropped below the tolerance
limit
Remedy: Check the external supply
voltage
Cause: Wire-feed unit motor is sticking
or defective
Remedy: Check or replace the wire-feed
unit motor
189
EN
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