
3.TROUBLESHOOTING AND ACTION TROUBLESHOOTING FOR βi SVPM B-65325EN/01
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(c) The control printed circuit board is faulty.
Replace the control printed circuit board or SVPM.
(d) The motor (internal thermostat) is faulty.
Replace the motor.
3.4.2 Alarm Code 02
The actual motor speed is largely deviated from the commanded speed.
(1) If this alarm is issued during motor acceleration
(a) The parameter setting of acceleration/deceleration time is
incorrect.
Set the following parameter with the actual
acceleration/deceleration time for your machine plus some
margin.
FS0i
Description
4082 Setting of acceleration/deceleration time
(b) The parameter for the speed detector is not set correctly.
Referring to "FANUC AC SPINDLE MOTOR αi/βi series
Parameter Manual (B-65280EN)," set a correct value.
(2) If this alarm is issued at a heavy cutting load
(a) The cutting load has exceeded the motor output power.
Check the load meter indication, and review the use
condition.
(b) The parameters for output restriction are not set correctly.
Check that the settings of the following parameters satisfy
the machine and motor specifications:
FS0i
Description
4028 Output restriction pattern setting
4029 Output restriction value
(c) The parameters specific to the motor are not correctly.
Referring to "FANUC AC SPINDLE MOTOR αi/βi series
Parameter Manual (B-65280EN)," check the motor-specific
parameters.