Yaskawa Sigma-5 User Manual: Design and Maintenance - Rotary Motors - Analog Voltage and Pulse Train Reference - Manual (Page 351)

10 Troubleshooting
10.1.1 List of Alarms
10-4
A.8A3
External Encoder Error of
Position
The position data of external encoder is
faulty.
Gr.1 Available
H H H A.8A5
External Encoder
Overspeed
The overspeed from the external encoder
occurred.
Gr.1 Available
A.8A6
External Encoder
Overheated
The overheat from the external encoder
occurred.
Gr.1 Available
A.A
*1
SERVOPACK: Command
Option Module Alarms
− − − − − −
A.b10
Speed Reference A/D
Error
The A/D converter for speed reference input
is faulty.
Gr.2 Available
H H H
A.b11
Speed Reference A/D
Data Error
A/D conversion data of speed reference
input is incorrect.
Gr.2 Available
A.b20
Reference Torque Input
Read Error
The A/D converter for torque reference
input is faulty.
Gr.2 Available
A.b31 Current Detection Error 1
The current detection circuit for phase U is
faulty.
Gr.1 N/A
A.b32 Current Detection Error 2
The current detection circuit for phase V is
faulty.
Gr.1 N/A
A.b33 Current Detection Error 3
The detection circuit for the current is
faulty.
Gr.1 N/A
A.bF0 System Alarm 0
"Internal program error 0" of the SERVO-
PACK occurred.
Gr.1 N/A
A.bF1 System Alarm 1
"Internal program error 1" of the SERVO-
PACK occurred.
Gr.1 N/A
A.bF2 System Alarm 2
"Internal program error 2" of the SERVO-
PACK occurred.
Gr.1 N/A
A.bF3 System Alarm 3
"Internal program error 3" of the SERVO-
PACK occurred.
Gr.1 N/A
A.bF4 System Alarm 4
"Internal program error 4" of the SERVO-
PACK occurred.
Gr.1 N/A
A.C10 Servo Overrun Detected The servomotor ran out of control. Gr.1 Available
L H L
A.C80
Absolute Encoder Clear
Error and Multiturn Limit
Setting Error
The multiturn for the absolute encoder was
not properly cleared or set.
Gr.1 N/A
A.C90
Encoder Communications
Error
Communications between the SERVO-
PACK and the encoder is not possible.
Gr.1 N/A
A.C91
Encoder Communications
Position Data Error
An encoder position data calculation error
occurred.
Gr.1 N/A
A.C92
Encoder Communications
Timer Error
An error occurs in the communications
timer between the encoder and the SERVO-
PACK.
Gr.1 N/A
A.CA0 Encoder Parameter Error Encoder parameters are faulty. Gr.1 N/A
A.Cb0 Encoder Echoback Error
Contents of communications with encoder
are incorrect.
Gr.1 N/A
A.CC0
Multiturn Limit
Disagreement
Different multiturn limits have been set in
the encoder and the SERVOPACK.
Gr.1 N/A
A.CF1
Feedback Option Module
Communications Error
(Reception error)
Reception from the Feedback Option Mod-
ule is faulty.
Gr.1 N/A
A.CF2
Feedback Option Module
Communications Error
(Timer stop)
Timer for communications with the Feed-
back Option Module is faulty.
Gr.1 N/A
(cont’d)
Alarm
Number
Alarm Name Meaning
Servo-
motor
Stop-
ping
Method
Alarm
Reset
Alarm Code Output
ALO1 ALO2 ALO3