91
Displayed service
codes Power
source
no | Arc
Cause: Arc-break
Remedy: Restart welding; clean workpiece surface.
Power source does not function
Mains switch is ON, but indicators are not lit up
Cause: Mains fuse is faulty
Remedy: Change the mains fuse
no | H2O
Cause: Cooling unit ow watchdog has been triggered
Remedy: Check the cooling unit; if necessary, top up the coolant or bleed the
water ow as described in “Putting the cooling unit into service”
hot | H2O
Cause: Thermostat on cooling unit has tripped
Remedy: Wait until the end of the cooling phase, i.e. until “Hot | H2O” is no longer
displayed.
-St | oP
(where the power source is being operated with a robot interface or a eld bus)
Cause: Robot not ready
Remedy: Initialise “Robot ready” signal, initialise “Source error reset” signal
(“Source error reset” only available in conjunction with ROB 5000 and
eld bus coupler for robot control)
Power source does not function
Mains switch is ON, but indicators are not lit up
Cause: There is a break in the mains lead; the mains plug is not plugged in.
Remedy: Check the mains lead, ensure that the mains plug is plugged in
Cause Mains outlet socket or plug is faulty.
Remedy: Replace faulty components
No welding current
Mains switch is ON, overtemperature indicator is lit up
Cause: Overloading; the duty cycle has been exceeded.
Remedy: Do not exceed the duty cycle
Cause: Thermostatic cut-out system has been tripped
Remedy: Wait until the power source automatically comes back on after the end of
the cooling phase
Cause: The fan in the power source is defective
Remedy: Change the fan
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