Rectifying faults
Error messages (power source)
099-005221-EW501
05.09.2016
51
7.2
Error messages (power source)
A welding machine error is indicated by an error code being displayed (see table) on the display
on the machine control.
In the event of a machine error, the power unit is shut down.
The display of possible error numbers depends on the machine version (interfaces/functions).
• Document machine errors and inform service staff as necessary.
• If multiple errors occur, these are displayed in succession.
Error
(Err)
Category
Possible cause
Remedy
a)
b) c)
1
-
-
x
Mains overvoltage
Check the mains voltages and compare with
the welding machine connection voltages
2
-
-
x
Mains undervoltage
3
x
-
-
Welding machine excess
temperature
Allow the machine to cool down (mains
switch to "1")
4
x
x
-
Low coolant level
Top up the coolant
Leak in the coolant circuit >
repair the leak and top up the coolant
Coolant pump is not working > check excess
current trigger on air cooling unit
5
x
-
-
Wire feeder/tachometer error
Check the wire feeder
Speedometer is not emitting a signal,
M3.51 defective > inform Service.
6
x
-
-
Shielding gas error
Check shielding gas supply (for machines
with shielding gas monitoring)
7
-
-
x
Secondary overvoltage
Inverter error > inform Service
8
-
-
x
Earth fault between welding
wire and earth line
Separate the connection between welding
wire and casing or an earthed object
9
x
-
-
Fast cut-out
Triggered by BUSINT X11 or
RINT X12
Rectify error on robot
10
-
x
-
Arc interruption
Triggered by BUSINT X11 or
RINT X12
Check wire feeding
11
-
x
-
Ignition error after 5 s
Triggered by BUSINT X11 or
RINT X12
Check wire feeding
13
x
-
-
Emergency stop deactivation
Check the emergency stop circuit at the
interface for automated welding
14
-
x
-
Wire feeder not detected.
Control cable not connected.
Check cable connections.
Incorrect ID numbers
assigned during operation
with multiple wire feeders.
Check ID number assignation
15
-
x
-
Wire feeder 2 not detected.
Control cable not connected.
Check cable connections.
16
-
-
x
VRD (open circuit voltage
reduction error).
Inform Service.
17
-
x
x
Excess current detection on
wire feeder
Check wire feeding
18
-
x
x
No speedometer signal from
second wire feeder (slave
drive)
Check the connection and particularly the
speedometer for the second wire feeder
(slave drive).
56
-
-
x
Mains phase failure
Check mains voltages
