CEBORA S.p.A.
12
3.302.089
31/05/02
Correct?
3.3.4
- The start button produces no effect.
WARNING
FOR THE FOLLOWING TESTS
DISCONNECT THE CONNECTOR J3
ON THE HF
BOARD (22) TO PREVENT HIGH FREQUENCY FROM BEING GENERATED.
START COMMAND TEST.
q
Panel board (31), connector CN2 terminals 4 (+) and 5 (-) = approxi14 Vdc, with
start button on torch released; approximately 1 Vdc, (contact closed) with button pressed.
YES
NO
♦
Check the wiring between CN2 panel board (31) and J1 HF board (22).
♦
Make sure that on connector J6 of HF board (22), terminals A and B =
approxi14 Vdc, with start button released, and 0 Vdc (contact closed)
with button pressed. If correct, replace the HF board (22). If incorrect, check the
wiring between terminals A and B of connector J6 on HF board (22), torch button
and contact of the nozzle protection on the torch; make sure the nozzle protection
and torch button are correctly assembled and in good working order. If they are
defective or showing signs of wear, replace them.
♦
Make sure that there is perfect insulation between the conductors of the start
button and those of the electrode and nozzle in the torch cable. If insulation is
reduced, replace the complete torch. Any loss of insulation between the torch
cable conductors may damage the HF (22) and panel (31) boards.
♦
See PANEL BOARD (31) POWER SUPPLY TEST, par. 3.3.1.
♦
Replace the HF (22) and/or panel (31) boards.
♦
Check the wiring between connector J1 panel board (31) and J1 power board (35).
♦
Check the wiring between CN2 panel board (31) and J1 HF board (22).
♦
Replace the HF (22) and/or panel (31) boards.
