Fronius FK 5000 - Service Codes and Pump Shaft

45
EN
The welding torch becomes very hot
Cause: The specification of the cooling unit is inadequate
Remedy: Observe the duty cycle and loading limits
Cause: The specification of the welding torch is inadequate
Remedy: Observe the duty cycle and loading limits
Cause: Inadequate coolant flow
Remedy: Check coolant level. Top up with coolant if necessary.
Check coolant for contamination. Change the coolant if necessary
Cause: Inadequate coolant flow
Remedy: Coolant pump sticking: Turn coolant pump shaft (see operating instructions,
"Turning coolant pump shaft" section). Contact After-Sales Service if the cool-
ant pump shaft proves impossible to turn
Displayed service
codes
NOTE!
Depending on the welding system, the service codes are displayed on the power
source or the wire-feed unit.
hot l H2O
The optional coolant temperature sensor in the cooling unit has tripped.
Cause: Coolant temperature too high
Remedy: Wait until the end of the cooling phase, i.e. until "hot | H2O" is no longer dis-
played.
If using a ROB 5000 or field bus coupler for robot control: After comple-
tion of troubleshooting and before resuming welding, set the "Source
error reset" signal.
no l H2O
The optional cooling unit flow sensor has tripped.
Cause: Coolant flow problem
Remedy: Check coolant level. Top up with coolant if necessary.
Check coolant for contamination. Change the coolant if necessary
Cause: Coolant filter (option) misplaced when connecting coolant return
Remedy: Clean coolant filter/replace filter element