Yaskawa Sigma-5 User Manual: Design and Maintenance - Rotary Motors - MECHATROLINK-II Communications Reference - Manual (Page 318)

9.1 Alarm Displays
9-21
9
Trou
blesh
ooting
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 Feed-
back 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.EA2:
DRV Alarm 2
(SERVOPACK WDT
error)
MECHATROLINK transmission
cycle fluctuated. Check the MECHATROLINK
transmission cycle setting. Remove the cause of transmission
cycle fluctuation at host controller.
A SERVOPACK fault occurred. −
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
(cont’d)
Alarm Number:
Alarm Name
(Alarm Description)
Cause Investigative Actions Corrective Actions