Yaskawa MP930 - Manual (Page 332)

Monitor Parameter Alarm List
D -8
Alarm
Code
Action Description Alarm Name
82h Absolute encoder checksum
error The result of [checksum] for the absolute
encoder memory is abnormal. Setup the absolute encoder.
Replace the Servopack.
83h Absolute encoder battery
error The backup battery voltage for the absolute
encoder was lowered. Check the battery connection.
Replace the battery.
Replace the Servopack.
84h Absolute encoder data error The received absolute data are abnormal. Turn ON the power supply for the MP930
again and the Servopack after turning OFF.
Reset the Servopack alarm.
Replace the Servopack.
85h Absolute encoder overspeed At power ON, the encoder rotated at a high
speed. Turn OFF the power supply and then ON
again without running the motor.
Replace the Servopack.
B1h Gate array 1 error Gate array 1 is faulty. Replace the Servopack.
B2h Gate array 2 error Gate array 2 is faulty. Replace the Servopack.
B3h Power supply feedback
phase U error An error occurred in the power supply
feedback phase U. Replace the Servopack.
B4h Power supply feedback
phase V error An error occurred in the power supply
feedback phase V. Replace the Servopack.
B5h Watchdog detector error The watchdog detector fault occurred. Replace the Servopack.
C1h Runaway detected The motor ran away. Correct the motor connection.
Correct the encoder wiring.
C2h Encoder phase error detected The encoder phase was shifted. Correct the encoder connection.
Take noise prevension measures.
Replace the encoder.
C3h Encoder phase A phase B
disconnection The signal of encoder phase A phase B is
disconnected. Correct the encoder signal line.
C4h Encoder phase C
disconnection The signal of encoder phase C is
disconnected. Correct the encoder signal line.
C5h Incremental encoder initial
pulse error The incremental encoder initial pulse error
occurred. Correct the encoder connection.
Take noise prevention measures.
Replace the incremental encoder.
D0h Position deviation overflow The number of pulses in the deviation
counter exceeded the set value. Correct the encoder signal line.
Reconsider the load.
Replace the Servopack.
E5h MECHATROLINK
synchronous error A MECHATROLINK servo synchronous
communications error occurred. Take noise prevention measures.
E6h MECHATROLINK
communications error A MECHATROLINK communications error
occurred twice. Correct the connector wiring.
Take noise prevention measures.
F3h Power loss A power loss was detected. Turn ON the power again.
D