YASKAWA GPD-506V

A
FROM
PRECEDING
PAG E
PROPER FREQUENCY
REFERENCE INPUT?
(TERMINAL FC(-) TO
FV OR FI)
NO
NO
NO
NO
NO
CHECK EXTERNAL
CIRCUITS FOR
PROBLEM AND
REPAIR.
YES
VOLTAGE PRESENT ACROSS
OUTPUT TERMINALS
T1 (U), T2 (V) AND T3 (W)?
VOLTAGE PRESENT AT
MOTOR TERMINALS
T1 (U), T2 (V) AND T3 (W)?
VOLTAGE BALANCED
(WITHIN 2%)
BETWEEN PHASES, AT
T1 (U), T2 (V) AND T3 (W)?
DRIVE
IS FAULTY.
YES
YES
YES
YES
CHECK WIRING
BETWEEN
DRIVE
AND MOTOR.
DRIVE
IS FAULTY.
LOAD TORQUE
TOO LARGE?
- WITH DRIVE IN
STOPPED CONDITION,
SELECT INCREASED
V/F BY REPROGRAM-
MING n011 - n017 .
- REDUCE LOAD
TORQUE (DISCON-
NECT LOAD).
- REPLACE DRIVE
WITH ONE OF LARGER
CAPACITY.
MOTOR
IS FAULTY.
6-7
TROUBLESHOOTING CHART 6.1 - Continued