NSK MEGATHRUST ESA-LYB2T15-21, Руководство пользователя

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— 14-7 —
14.2.3. Alarms Related to Motor
14.2.3.1. Resolver Circuit Error
[Output] DRDY: Open
[TA] A0 > Resolver Circuit Error
[LED] A0
[Motor Condition] Servo-OFF
Table 14-7: Cause and Remedy: Resolver circuit error
Cause Remedy
(1) Resolver cable disconnected.
(Refer to “Appendix 2. How to Check
Motor Condition”.)
·
Turn off power, check the resolver cable and
connector.
(2) Breakage of resolver cable.
(Refer to “Appendix 2. How to Check
Motor Condition”.)
·
Replace resolver cable.
(3) Faulty resolver.
(Refer to “Appendix 2. How to Check
Motor Condition”.)
·
Replace Motor.
(4) Faulty PCB.
(When the alarm is on even when the
resolver and the cable are normal and
the connector is properly secured.)
·
Replace Driver Unit.
(Refer to “Appendix 4. How to Replace ESA13 Driver
Unit”.)
Note: (1) Check the resolver cable for disconnection and shorted of wires.
(2) Check the connector for contact failure.
(3) When the resolver Cable is forced to move and bend, the bending radius and
frequency will affect on the life of cable. It is necessary to have a insulation and
continuity tests periodically.
(4) When an excessive current is applied to the resolver, which is induced by internal
contact or collision of Motor and motor base, the fuse protecting the existing circuit
of resolver may blow out. Replace of Motor and Driver Unit is required in such a
case.
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