Yaskawa i80M Maintenance Manual - Manual (Page 109)

4.2.24 ALARMS 3331 TO 3335 (OVERVOLTAGE)
Table 4.26 Alarms 3331 to 3335 (Overvoltage)
Causeof Trouble Check Method
I
Solution
Excess load
Regenerative
processing circuit
error
Alarm occurs when motor is started or slowed
down.
Alarm occurs when motor is started or slowed
down.
Check load machine
inertia converted
into motor axis.
Replace
4.2.25 ALARMS 3341 TO 3345 (UNDERVOLTAGE)
Table 4.27 Alarms 3341 to 3345 (Undervoltage)
Cause of Trouble Check Method Solution
Main circuit Alarm occurs after main circuit power is turned Replace
th yristor-diode ON. SERVOPACK.
module error
4.2.26 ALARMS 3351 TO 3355 (HEAT SINK OVERHEAT)
Table 4.28 Alarms 3351 to 3355 (Heat Sink Overheat)
Cause of Trouble
Control board fault
Fan stops
High ambient
temperature near
(over 55°C
Motor circuit
connection error
Check Method
Alarm occurs immediately after control power
turned ON.
Alarm occurs during operation. (If control
power is turned OFF and then immediately
turned ON again, alarm remains ON. Operation
can be restarted only if system is reset after a
while. )
Alarm occurs during operation. (If control
power is turned OFF and then immediately
ON again, alarm remains ON.
Operation can be restarted only if system is
reset after a while. )
Motor turns at low torque. Alarm occurs
after a while.
S o l u t i o n
whether fan
s running.
Take necessary
action to lower
servopack ambient
temperature.
Connect properly.
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