Yaskawa Large Capacity Sigma II Series - Manual (Page 370)

8.2 Troubleshooting
8-31
8
„ A.E7
A.E7: Option Unit Detection Error
A.E7 occurs when the SGDH is used without option unit after it has been used with option
unit.
This alarm cannot be cleared by alarm reset.
Clear the alarm by Fn014 (option unit detection result clear) of auxiliary function mode.
Display and Outputs
Note: OFF:Output transistor is OFF (alarm state). ON: Output transistor is
ON.
Status and Remedy for Alarm
Alarm Outputs
Alarm Code Outputs ALM Output
ALO1 ALO2 ALO3
ON ON OFF OFF
Cause Remedy
A The SGDH is used without option unit after
it has been used with option unit. To continue using the SGDH without option
unit, execute Fn014 (option unit detection
result clear) of the auxiliary function mode
and restart the power.
B Option unit connection defective. Check and correct the connection.
C Option unit defective. Replace option unit.
D Connector Cn10 of SERVOPACK defec-
tive. Replace SERVOPACK.
Occurred with option unit
when the control power
turned ON.
B, C, D
Occurred without option unit
when the control power
turned ON.
A