YASKAWA S-V Series User Manual page 177

Alarm
Alarm Name
Display
Encoder
A.C90
Communications Error
Encoder
A.C91
Communications
Position Data Error
Encoder
A.C92 Communications Timer
Error
Encoder Parameter
A.CA0
Error
Encoder Echoback
A.Cb0
Error
Multi-turn Limit
A.CC0
Disagreement
Feedback Option
Module
*
A.CF1
Communications Error
(Reception error)
Feedback Option
Module
*
A.CF2
Communications Error
(Timer stop)
Position Error Pulse
A.d00
Overflow
Position Error Pulse
A.d01 Overflow Alarm at
Servo ON
Position Error Pulse
Overflow Alarm by
A.d02
Speed Limit at Servo
ON
∗
Alarm occurs when an Option Module for Fully-closed Loop Control is mounted.
Meaning
Communications between the
Rotational
SERVOPACK and the encoder is
motors
not possible.
Communications between the
Linear
SERVOPACK and the linear scale
motors
is not possible.
Rotational An encoder position data calcula-
motors tion error occurred.
Linear A linear scale position data calcu-
motors lation error occurred.
An error occurs in the communica-
Rotational
tions timer between the encoder
motors
and the SERVOPACK.
An error occurs in the communica-
Linear
tions timer between the linear scale
motors
and the SERVOPACK.
Rotational
Encoder parameters are faulty.
motors
Linear
Linear scale parameters are faulty.
motors
Rotational Contents of communications with
motors encoder is incorrect.
Linear Contents of communications with
motors linear scale is incorrect.
Different multi-turn limits have been set in the
encoder and the SERVOPACK.
Reception from the feedback option module is
faulty.
Timer for communications with the feedback
option module is faulty.
The setting of Pn520 (Position Deviation Over-
flow Alarm Level) was exceeded by the posi-
tion deviation.
Position error pulses accumulated too much.
After a position error pulse has
been input, Pn529 limits the speed
if the servo ON command is
received. If Pn529 limits the speed
Rotational
in such a state, this alarm occurs
motors when the position references are
input and the number of position
error pulses exceeds the value set
for parameter Pn520 (Excessive
Position Error Alarm Level).
After a position error pulse has
been input, Pn584 limits the speed
if the servo ON command is
received. If Pn584 limits the speed
Linear
in such a state, this alarm occurs
when the position references are
motors
input and the number of position
error pulses exceeds the value set
for parameter Pn520 (Excessive
Position Error Alarm Level).
9.1 Troubleshooting
Servomotor Alarm Code Output
Alarm
Stop
Reset
/ALO1 /ALO2 /ALO3
Method
Gr.1 N/A
Gr.1 N/A
Gr.1 N/A
ON
(close)
Gr.1 N/A
Gr.1 N/A
Gr.1 N/A
Gr.1 N/A
Gr.1 N/A
Avail-
Gr.1
able
Avail-
Gr.1
able
ON
(close)
Avail-
Gr.2
able
(cont'd)
OFF ON
(open) (close)
ON OFF
(close) (open)
9
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