Download ESA23 Driver Unit System

13.2.3. Alarms Related to Motor
13.2.3.1. Resolver Circuit Error
[Output]
DRDY : Open
[TA]
A0 > Resolver Circuit Error
[LED]
A0
[Motor Condition]
Servo-OFF
Table 13-7 : Cause and Remedy : Resolver circuit error
Cause
Remedy
1 Resolver cable disconnected.
¡ Turn off power, check the resolver cable and connector.
(Refer to “Appendix 2. How to Check Motor
Condition”.)
2 Breakage of resolver cable.
¡ Replace resolver cable.
(Refer to “Appendix 2. How to Check Motor
Condition”.)
3 Faulty resolver.
¡ Replace Motor.
(Refer to “Appendix 2. How to Check Motor
Condition”.)
4 Faulty PCB.
(When the alarm is on even when the
¡ Replace Driver Unit.
(Refer to “Appendix 4. How to Replace ESA23 Driver Unit”.)
resolver and the cable are normal and the
connector is properly secured.)
Note : a Check the resolver cable for disconnection and shorted of wires.
s Check the connector for contact failure.
d When the resolver Cable is forced to move and bend, the bending radius
and frequency will affect on the life the cable. It is necessary to have a
insulation and continuity tests periodically.
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