YASKAWA GPD-506V

NO DIGITAL OPERATOR DISPLAY
TROUBLESHOOTING CHART 6.10
230/460
ON
L1, L2, L3?
YES
YES
YES
CHARGE
LAMP
ON?
APPLY
POWER
EITHER CONTROL CARD
OR GATE DRIVE IS
FAULTY
REPLACE
GATE DRIVE
BOARD
NO
DISPLAY
IS VOLTAGE
BETWEEN S1/SC
OR TERM.
J24 VDC?
IS VOLTAGE
BETWEEN FS/FC
OR TERM.
+15 VDC?
CHECK ALL
CONNECTORS,
EXCHANGE
OPERATOR /
CABLE
DAMAGED PRECHARGE
RESISTOR, INPUT
DIODES, OR OUTPUT
TRANSISTORS
NO
YES
IS VOLTAGE
BETWEEN FS/FC
OR TERM.
+15 VDC?
NO
NO
NO
NO
6-16