Cebora KINGSTAR 400TS Manual De Servicio página 75

CEBORA S.p.A.
TESTING POWER SUPPLY OF PRECHARGE MAINS FILTER BOARD (39) (Fig.
3.5.1.a)
TESTING SERVICE TRANSFORMER (38) (Fig. 3.5.1a)
□ Service transformer (38), terminals 0-400=400 Vac, with switch (5) closed
3301045
YES
Check the power cable and plug; replace if necessary
Check switch (5); replace if necessary
Check that all three phases are present
Check the connection between switch (5), precharge filter
board (39), bridge rectifier (23) and power board (48)
Replace precharge mains filter board (39).
YES
Check the wiring between J7 of board (39) and transformer
(38)
Check fuse on terminal block of 22 Vac secondary winding of
transformer (38) and replace if interrupted. With power source
off, disconnect the connection on J7 of board (39), measure
the resistance between PINS 1 and 2 of J7, correct value
=>Mohm, if different, replace board (39).
Replace precharge mains filter board (39).
YES
Correct?
NO
Correct?
NO
Correct?
NO
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17/09/2019