Power Source Powered, Operator Panel (64) On, Fan (77) Stopped - Cebora PLASMA PROF 162 Service Manual

CEBORA S.p.A.

3.3.2 - Power source powered, operator panel (64) on, fan (77) stopped.

CAPACITOR PRE-CHARGING (40) AND TRANSFORMER PRE-MAGNETIZATION (79)
TEST.
Capacitor (40), terminals + and – = > 200 VDC, and remote switch (5) closed, after closing
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the switch (60).
♦ See "Pre-charge board power supply test" par. 3.3.2.
♦ Check the wiring between J3 board (7) and J13 board (62).
♦ Check the wiring between J2 board (7) and J9 board (62).
♦ Check the wiring between the remote switch (5) coil terminals and J13 on board
(62).
♦ Replace board (7).
♦ Replace board (62).
♦ Replace remote switch (5).
VENTILATION TEST.
Fan (77), terminals A (black wire) – H (blue wire), on the faston patch connector = 230
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VAC, after closing the remote switch (5).
♦ Check the wiring between the fan motor (77) and starting capacitor connected to
terminals A and K of the motor (77).
♦ Replace starting capacitor.
♦ Replace motor (77).
♦ Check the wiring between power voltage change and motor (77).
♦ Make sure the voltage change is correctly positioned.
♦ Check for the presence of the three power supply phases on the primary circuit of the
transformer (79).
PRE-CHARGE BOARD POWER SUPPLY TEST.
Pre-charge board (7), connector J1 terminals 1 - 4 = 180 VAC.
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♦ Check the wiring between connectors J1 on board (7) and J1 on board (8).
♦ Check fuse F1 on board (8); if broken, replace and make sure that terminals 1 - 4
of J1 on board (7) are not short-circuited. If so, replace board (7).
♦ Check the 180 VAC on terminals 0 – 180 of board (8); if missing, check the
wiring between the service transformer and board (8), or replace the service
transformer (8). If present replace the fuse board (8).
♦ Regular power supply to pre-charge board (7).
3.302.002
Correct?
YES
NO
Correct?
NO
YES
Correct?
YES
NO
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