72
No welding current
Mains switch is ON, overtemperature indicator is lit up
Cause:
Overload
Remedy:
Check duty cycle
Cause:
Thermostatic safety cut-out has tripped
Remedy:
Wait until the power source automatically comes back on at the end of the
cooling phase
Cause:
Insufficient cooling air intake
Remedy:
Ensure adequate air supply
Cause:
Power module very dirty
Remedy:
Clean device using dry compressed air (see "Care and maintenance")
Cause:
The fan in the power source is faulty
Remedy:
Have device serviced
Mains fuse or automatic circuit breaker has tripped
Cause:
Mains fuse underrated
Remedy:
Rate fuse according to the "Technical data" section
Cause:
Mains fuse trips in open circuit
Remedy:
Have device serviced
Status indicators
NOTE!
When using an interface for field-bus systems, the indicators A - D show the error
number in binary code (column "No.
" in the table below).
Example showing the relationship between indicator and number: D
C
B
A
= 0 1 0 1 = 5
Description
Indicator No.
Test mode
0
Interface indicator flashes green
Cause:
Not an error, test mode with TR 3000 remote control
Remedy:
Not required
Primary current
1
Indicators shown on the right light up, interface indicator flashes red
Cause:
Internal fault
Remedy:
-
Switch device off and back on again
-
Fault keeps recurring => have device serviced
Interface
A
D
C
B
