Yaskawa Sigma-5 Large Capacity Users Manual: Design and Maintenance-Rotary Motors-Analog Voltage and Pulse Train Reference - Manual (Page 376)

10 Troubleshooting
10.1.2 Troubleshooting of Alarms
10-20
A.d10:
Motor-load Position
Error Overflow
Motor rotation direction and
external encoder installation
direction are opposite.
Check the servomotor rotation
direction and the external encoder
installation direction.
Install the external encoder in the
opposite direction, or change the
setting of the external encoder
usage method (Pn002.3) to reverse
the direction.
Mounting of the load (e.g., stage)
and external encoder joint instal-
lation are incorrect.
Check the external encoder
mechanical connection.
Check the mechanical joints.
A.E71:
Safety Option Module
Detection Failure
The connection between the
SERVOPACK and the safety
option module is faulty. Check the connection between the
SERVOPACK and the safety option
module.
Correctly connect the safety option
module.
The safety option module was
disconnected.
–
Execute Fn014 (Resetting configu-
ration error of option module) with
using the digital operator or Sig-
maWin+ and turn the power supply
OFF and then ON again.
A safety option module fault
occurred.
– Replace the safety option module.
A fault occurred in the SERVO-
PACK.
– Replace the SERVOPACK.
A.E72:
Feedback Option
Module Detection
Failure
The connection between the
SERVOPACK and the Feedback
Option Module is Faulty.
Check the connection between the
SERVOPACK and the Feedback
Option Module.
Correctly connect the Feedback
Option Module.
The Feedback Option Module
was disconnected.
−
Execute resetting configuration
error in option modules (Fn014) and
turn the power supply OFF and then
ON again.
A Feedback Option Module fault
occurred.
−
Replace the Feedback Option Mod-
ule.
A fault occurred in the SERVO-
PACK.
− Replace the SERVOPACK.
A.E74:
Unsupported Safety
Option Module
A safety option module fault
occurred.
− Replace the safety option module.
A unsupported safety option
module was connected. Refer to the catalog of the con-
nected safety option module. Connect a compatible safety option
module.
A.E75:
Unsupported
Feedback Option
Module
A feedback option module fault
occurred.
−
Replace the feedback option mod-
ule.
A unsupported feedback option
module was connected.
Refer to the catalog of the con-
nected feedback option module or
the manual of the SERVOPACK.
Connect a compatible feedback
option module.
A.Eb1:
Safety Function Signal
Input Timing Error
The lag between activations of
the input signals /HWBB1 and
/HWBB2 for the HWBB function
is ten second or more.
Measure the time lag between the /
HWBB1 and
/HWBB2 signals.
The output signal circuits or devices
for /HWBB1 and
/HWBB2 or the SERVOPACK
input signal circuits may be faulty.
Alternatively, the input signal
cables may be disconnected. Check
if any of these items are faulty or
have been disconnected.
(cont’d)
Alarm Number:
Alarm Name
(Alarm Description)
Cause Investigative Actions Corrective Actions