Omron XTRADRIVE User Manual page 270

XtraDrive User Manual
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A.E7: Option Unit Detection Error
A.E7 occurs the first time the SGDH amplifier is used after
disconnecting an option unit. This alarm cannot be cleared with an
alarm reset; instead, clear it with function Fn014.
Display and Outputs
ALO1
ON
Note: OFF: Output transistor is OFF (alarm state).
ON: Output transistor is ON.
Status and Remedy for Alarm
When the control power is
turned ON after
disconnecting an option
unit.
A
B
C
D
Chapter 9: Inspection, Maintenance, and Troubleshooting
Alarm Outputs
Alarm Code Output
ALO2
ON
A
Cause of the Problem
The SGDH amplifier is used
immediately after disconnection
of an option unit without clearing
the unit detector.
Option unit connection is
defective.
Option unit is defective.
Servo amplifier
9-22
ALM Output
ALO3
OFF OFF
When the control power
is turned ON with an
option unit connected.
Solution
To use the SGDH amplifier after
disconnecting the option unit, execute
Fn014 (option unit detection result
clear), in the auxiliary function mode,
and then cycle the power.
Check and correct the connection.
Replace the option unit.
Replace the servo amplifier.
D