Yaskawa Σ-V Series AC Servo Drives Rotational Motor Analog Voltage Reference - Manual (Page 263)

9 Troubleshooting
9.1.1 List of Alarms
9-4
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 SERVOPACK.
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.d00 *2 Position Error Overflow
Position error exceeded the value of excessive
position error alarm level (Pn520) when the ser-
vomotor power is ON. Gr.1 Available
A.d01 *2
Position Error Overflow Alarm
at Servo ON
This alarm occurs if the servomotor power is
turned ON when the position error is greater
than the set value of Pn526 while the servomo-
tor power is OFF.
Gr.1 Available
A.d02 *2
Position Error Overflow Alarm
by Speed Limit at Servo ON
When the position errors remain in the error
counter, Pn529 limits the speed if the servomo-
tor power is turned ON. If Pn529 limits the
speed in such a state, this alarm occurs when
reference pulses are input and the number of
position errors exceeds the value set for the
excessive position error alarm level (Pn520).
Gr.2 Available
CPF00
Digital Operator Transmission
Error 1
Digital operator fails to communicate with the
SERVOPACK (e.g., CPU error).
− N/A
CPF01
Digital Operator Transmission
Error 2
− N/A
A. − − Not an error Normal operation status − −
∗2. This alarm will occur only for a SERVOPACK for pulse train references.
(cont’d)
Alarm
Number
Alarm Name Meaning
Servo-
motor
Stopping
Method
Alarm
Reset