Yaskawa Sigma II Series DC Power Input SGMAJ - Manual (Page 284)

10.1 Troubleshooting
10-3
10
A.81 Encoder Backup Error All the power supplies for the absolute
encoder have failed and position data
was cleared. N/A
H H H H
A.82 Encoder Checksum Error The checksum results of encoder
memory is abnormal. N/A
A.83 Absolute Encoder Battery Error Backup battery voltage for the abso-
lute encoder has dropped. Available
A.84 Encoder Data Error Data in the encoder is abnormal. N/A
A.85 Encoder Overspeed The encoder was rotating at high
speed when the power was turned ON. N/A
A.86 Encoder Overheated The internal temperature of encoder is
too high. N/A
A.b1 Reference Speed Input Read Error The A/D converter for reference speed
input is faulty. Available
A.b2 Reference Torque Input Read Error The A/D converter for reference
torque input is faulty. Available
A.bF System Alarm A system error occurred in the SER-
VOPACK. N/A
A.C1 Servo Overrun Detected The servomotor ran out of control. Available
L H L H
A.C8 Absolute Encoder Clear Error and
Multiturn Limit Setting Error The multiturn for the absolute encoder
was not properly cleared or set. N/A
A.C9 Encoder Communications Error Communications between SERVO-
PACK and encoder is not possible. N/A
A.CA Encoder Parameter Error Encoder parameters are faulty. N/A
A.Cb Encoder Echoback Error Contents of communications with
encoder is incorrect. N/A
A.CC Multiturn Limit Disagreement Different multiturn limits have been
set in the encoder and SERVOPACK. N/A
A.d0 Position Error Pulse Overflow Position error pulse exceeded parame-
ter (Pn505). Available
L L H H
CPF00 Digital Operator
Transmission Error Digital operator (JUSP-OP02A-2)
fails to communicate with SERVO-
PACK (e.g., CPU error). N/A
Not decided
CPF01 N/A
A. − − Not an error Normal operation status − H H H L
Table 10.1 Alarm Displays and Outputs (cont’d)
Alarm
Display
Alarm Name Meaning
Alarm
Reset Alarm Code Output Servo
Alarm
(ALM)
Output
ALO1 ALO2 ALO3