51 - Torch Not Recognized; 52 - "Trg" On Display (B) Of The Power Source And (F) Of The Gas Console. Start Button Pressed At Power Source Start-Up - Cebora PLASMA PROF 164 HQC Service Manual

CEBORA S.p.A.
TORCH ADAPTER PROTECTION SIGNAL TEST.
Control board (38), connector J2, terminals 11(+) and 12(-) = 0 Vdc with protection engaged
(RL2 contact on torch board (42) closed, DIP1-D closed); +5 Vdc with protection disengaged
(RL2 contact on torch board (42) open, DIP1-D open).
♦ Check the wiring between J7 torch board (42) and J2 control board (38).
♦ With Power Source off, temporarily disconnect J2 from control board (38) and
check on terminals 11(+) and 12(-) of J2 on control board (38) voltage = +5 Vdc.
If incorrect, replace control board (38); if correct replace the torch board (42).
♦ Replace the torch board (42).
♦ Replace the control board (38).

3.4.9 - 51 - Torch not recognized.

On Plasma PROF 164 it is currently possible to install only the torch CP 250 art. 1236, which
does not have an automatic recognition system. The Power Source must however be equally
ready to operate with the torch CP250 and may be obtained by the dipswitches DIP1-A, DIP1-B
and DIP1-C on torch board (42).
TORCH CP250 RECOGNITION SIGNAL TEST.
Control board (38), connector J2, terminals 1, 2, 3 – 4 = signals according to table below.
J2 terminals on control board (38).
Signals on the J2 terminals.
Dip-switches on torch board (42).
♦ Check the wiring between J7 torch board (42) and J2 control board (38).
♦ Check the torch board (42) supply voltage, performing if necessary the TORCH
BOARD (42) 24V POWER SUPPLY TEST in par. 3.4.8.
♦ With Power Source off, temporarily disconnect J7 from torch board (42) and
check the resistance between terminals 1-4, 2-4 and 3-4. Correct value =
approximately 7 Kohm. If incorrect, replace control board (38); if correct replace
the torch board (42).
♦ Replace the torch board (42).
♦ Replace the control board (38).
3.4.10 - 52 - "trG" on display (B) of the Power Source and (F) of the Gas Console. Start
button pressed at Power Source start-up.
Perform the START COMMAND TEST and REMOTE BOARD (59) POWER SUPPLY
TEST in par. 3.3.4.
3.302.218
Correct?
YES
NOTE
1 - 4
24 Vac
DIP1-A closed
Correct?
YES
NO
2 - 4
0 Vac
DIP1-B open
NO
37
3 - 4
24 Vac
DIP1-C closed
9/8/2006