31
EN
Cooling capacity too low
Cause:
Fan defective
Remedy:
Replace fan
Cause:
Cooling pump defective
Remedy:
Replace coolant pump
Cause:
Cooler contaminated
Remedy:
Clean cooler with dry compressed air
Cause:
Cooling capacity of cooling unit too low
Remedy:
Use cooling unit with higher cooling capacity
High operating noise level
Cause:
Coolant level too low
Remedy:
Refill coolant
Cause:
Cooling pump defective
Remedy:
Replace coolant pump
no l H2O
The flow watchdog (option) or flow sensor in the cooling unit has tripped. The error mes
-
sage is displayed on the operating panel of the power source.
Cause:
Cooling flow error
Remedy:
Check cooling unit; if necessary, refill coolant and purge water flow line ac
-
cording to the Chapter “Start operation of the cooling unit“
Cause:
Water filter clogged
Remedy:
Clean or replace water filter
hot l H2O
The thermal controller of the cooling unit has responded. The error message is displayed
on the operating panel of the power source.
Cause:
Excessive coolant temperature
Remedy:
Wait the cooling-down time until hot | H2O is no longer displayed.
ROB 5000 or fieldbus coupler for robot control: before welding is started
again, reset signal “source error reset“.
Welding torch excessively hot
Cause:
Welding torch dimensioned insufficiently
Remedy:
Pay attention to duty cycle and load limits
Cause:
Only with water-cooled systems: water flowrate too low
Remedy:
Check water level, water flowrate, water contamination etc., coolant pump
blocked: rotate coolant pump shaft by means of screw driver (2)
