Yaskawa MP930 - Manual (Page 331)

D.3 Monitor Parameter Number 23 Alarms
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When ILxx22 bit 0 (Servopack Error) is ON, a MECHATROLINK Servopack alarm will be gener-
ated. For the alarm details, refer to the MECHATROLINK Servo Alarm Codes.
The following table shows a list of the alarm codes and corrective actions.
Alarm
Code
Alarm Name Description Action
99h Normal − −
94h User constant setting error Out of the set range for MECHATROLINK
communications setting, or incorrect setting
order Change the setting.
Check the setting order.
95h MECHATROLINK
command alarm A fault occurred in a MECHATROLINK
command. (For example, the servo was not
turned ON by a Servo ON command.) Set the motor encoder according to the
Servopack encoder.
96h MECHATROLINK
communications error alarm A synchronous error or a communications
error occurred. Correct the connection. Take noise
prevension measures.
00h Absolute data error The absolute encoder malfunctioned or the
wiring was incorrect. Setup the absolute encoder.
Correct the connection.
02h User constant destroyed EEPROM data in Servopack faulty Replace the Servopack.
10h Overcurrent Overcurrent was in the main circuit. Replace the Servopack.
11h Grounding The motor power line was grounded. Correct motor connection.
Replace the motor.
Replace the Servopack.
40h Overvoltage Overvoltage was applied to the main circuit
due to regenerative error, etc. Check the inertia on the load side by the
motor axis formula.
Replace the Servopack.
51h Overspeed The motor speed exceeded the max. value. Correct the motor connection.
Check the phase-A, phase-B and phase-C
pulses at 2CN, and correct them.
71h Overload (instantaneous) The motor rotated for several seconds or tens
of seconds with the torque largely exceeding
its rating. Reduce the load torque or inertia.
Choose a motor with a larger capacity.
72h Overload (continuous) Continuous operation was made with the
torque exceeding the rating. Reduce the load torque or inertia.
Replace the motor with a larger capacity
motor.
80h Absolute encoder error The absolute encoder is abnormal. Check the encoder connection.
Reset the number of pulses of the encoder.
Separate the encoder wiring from the main
circuit.
Resets the alarm.
81h Absolute encoder backup
error All the power supplies to the encoder were
shut down, and the position data were
cleared. Setup the absolute encoder.
Replace the Servopack.
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