10.2)
Power supply PC board 15.14.271
This board performs the following functions:
- auxiliary power supplies of all the boards
CN1 = HF PC board power supply
CN2/1 = synchronization signal from main clock generator
PZGNDL = ground connection to Input Filter PC Board, well tighten screw needed
Note:
* F1 fuse MUST
be 2A 250Vac T (Time delay) ceramic body filled with sand type!
Protected circuit
Auxiliary power supply input
Torch trigger and protection
HF PC board power supply
Input voltage alarms (over/under voltage & phase lack)
- (not used power supply output)
Negative auxiliary power supply (inverter control logic, welding logic, panel logic, Hall probe).
Microprocessor logic power supply (front panel)
Main positive auxiliary power supply (inverter control logic, cut logic, pilot arc logic, panel logic,
Hall probe, thermal alarm, fan, solenoid valve).
Fusible
F1*
F2
F3
F4
F5, F6
F7
F8
F9
Unless specified otherwise, all the measurements must be taken with the boards fitted, together with their connections!
30 Description, testing and replacement of the electronic boards, current calibration
Value
2A T 250Vac*
1A T 250Vac
1A T 250Vac
1A T 250Vac
1A T 250Vac
2.5A T 250Vac
1A T 250Vac
8A T 250Vac
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