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Inspection, Maintenance, and Troubleshooting
9.2.1 Troubleshooting Problems with Alarm Displays
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J
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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 can not be cleared by alram reset. Clear the alarm by Fn014 (option unit detection
result clear) of auxiliary function mode.
Display and Outputs
Alarm Outputs
Alarm Code Outputs
ALM
Output
ALO1
ALO2
ALO3
Output
ON
ON
OFF
OFF
Note
OFF: Output transistor is OFF (alarm state). ON: Output transistor is ON.
Status and Remedy for Alarm
Occurred with option unit
when the control power
turned ON.
B, C, D
Occurred without option unit
when the control power
turned ON.
A
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 defective.
Replace Servopack.
9
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