Rectifying faults
Error messages
099-00T401-EW501
01.02.2022
65
6.2 Error messages
Depending on the options of the machine display, a fault is shown as follows:
Display type - machine control
Display
Graphic display
two 7-segment displays
one 7-segment display
The possible cause of the fault is signalled by a corresponding fault number (see table). In the case of an
error, the power unit shuts down.
The possible error numbers displayed depend on the machine series and version!
• If multiple errors occur, these are displayed in succession.
• Document machine errors and inform service staff as necessary.
Error
Possible cause
Remedy
3
Tacho error
Check wire guide / hose package.
Wire feeder is not connected
Switch off cold wire mode in the machine configuration
menu (off status). Connect the wire feeder.
4
Temperature error
Allow the machine to cool.
Error in the emergency stop circuit
(interface for automated welding)
Check the external shutdown devices. Check the jum-
per JP 1 on PCB T320/1.
5
Overvoltage
Switch off the machine and check the mains voltage.
6
Undervoltage
7
Coolant error (with connected coo-
ling unit only).
Check coolant level and top up if necessary.
8
Gas error
Check the gas supply.
9
Secondary overvoltage
Switch the machine off and on. If the error persists, no-
tify Service.
10
PE error
11
FastStop position
Slope “Acknowledge error” signal (0 to 1) using the ro-
bot interface (if present).
12
VRD error
Switch the machine off and on. If the error persists, no-
tify Service.
16
Pilot arc fault
Check welding torch.
17
Filler wire error
Excess current or deviation of the
actual value from the wire target va-
lue.
Check the wire feed system (drives, hose packages,
welding torches, process wire feed speed and robot
travel speed) and correct if necessary.
18
Plasma gas error
Target value specification deviates
significantly from the actual value.
Check plasma gas supply (leak tightness, kinks, guide,
connections, closure).
19
Shielding gas error
Target value specification deviates
significantly from the actual value
Check plasma gas supply (leak tightness, kinks, guide,
connections, closure).
20
Coolant flow
Coolant flow rate too low
Check cooling circuit (coolant level, leak tightness,
kinks, guide, connections, closure).
22
Excess temperature in cooling circuit Check cooling circuit (coolant level, temperature target
value).
23
Excess temperature of the HF choke Allow the machine to cool. Adjust processing cycle
times if necessary.
24
Pilot arc ignition error
Check the wear parts of the plasma torch.
