Alarm Group D: Controller-Encoder Abnormality Alarm
An abnormality occurred between the controller and encoder.
No. | Cause | Countermeasure |
|---|---|---|
１ | If a similar alarm persists after turning the power supply back on, it is likely that a contact failure has occurred at the connector of the cable that connects the controller and motor. | After shutting off the power supply, remove the cable connector and firmly re-insert it all the way. If this does not improve the situation, the cable may be disconnected, in which case the connection cable should be replaced. |
2 | The communication between the controller and encoder is affected by the noise of a peripheral device and cannot operate normally. | Shut down the power supply of the peripheral device and operate only with the ELECYLINDER, then check to see whether this alarm persists. If it does not, there is a possibility that the ELECYLINDER is affected by the noise from the peripheral device. Reconsider the noise countermeasures (grounding protection, power line wiring, electrostatic shielding, etc.) for the peripheral device. |
3 | If this alarm recurs after performing the inspection above and improving the power supply environment, it is highly likely that the motor or controller has failed. | Replace the motor unit or PC board. For details, refer to the Instruction manual for each ELECYLINDER, Maintenance and Inspection. |
4 | A change was made to Parameter No. 3 or No. 4 while WA (battery-less absolute encoder type) is selected in an option. | Reset the alarm and then perform the homereturn operation. |