YASKAWA YASNAC i80 - Alarms 3301 to 3305 (Overcurrent); Alarms 3311 to 3315 (MCCB Trip); Alarms 3321 to 3325 (Regenerative Error)

4.2 TROUBLESHOOTING BY ALARM CODES (Cent’d)
4.2.21 ALARMS 3301 TO 3305 (OVERCURRENT)
Table 4.23
Alarms 3301
to 3305 (Overcurrent)
Causeof Trouble
Control board fault
Current feedback
circuit error
Main circuit
transistor module
error
Motor grounding
Check Method
Solution
Alarm occurs immediately after control power
Replace
is turned ON.
SER170PACK.
Alarm occurs after main power is turned ON.
Replace
MCCB is not tripped.
SERVOPACK.
Alarm occurs after main power is turned ON. Replace
SERVOPACK.
Alarm occurs after main power is turned ON. Replace motor.
MCCB is
tri~ped.
4.2.22 ALARMS 3311 TO 3315 (MCCB TRIP)
Table 4.24
Alarm
s3311 to 3315 (MCCB Trip)
Causeof Trouble
I
Check Method
Solution
Control board fault
Main circuit
thyristor-diode
module error
MCCB failure
Alarm occurs immediately after control power
is turned ON.
Alarm occurs after main power is turned ON.
Replace
SERVOPACK.
Replace
SERVOPACK.
Alarm occurs after main power is turned ON.
Replace
SERVOPACK.
4.2.23 ALARMS 3321 TO 3325 (REGENERATIVE
Table 4.25
Alarms 3321 to 3325 (Regenerative Error)
Causeof Trouble
Control board fault
Regenerative
tranl-istor error
Wire break in
regenerative resistor
Check Method
Alarm occurs immediately after control power
is turned ON.
Alarm occurs 0.5 to 1 second after main power
is turned ON. MCCB is not tripped.
Alarm occurs after main power is turned ON.
Solution
.Zeplace
SERVOPACK.
Replace
SERVOPACK.
Replace SERVOPACK.
Check regenerative
resistor and replace
if necessary.