IAI EC ELECYLINDER EC-GD4, Instruction Manual

Page: 163 / 208

7-14
7.
T
roubl
es
hoot
ing
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 specifications of the replaced controller and the motor
may not match.
[Example]
An incremental-type motor and battery-less absolute spec
controller have been combined by mistake
Cut off the power supply and make sure that the
specifications of the replaced motor and controller are both
"battery-less absolute specification" or "incremental
specification".
→ For details, refer to "
Controller replacement
(page 8-15)".
3 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.
4 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 or controller cover assembly. Customers
may not replace the motor by themselves. Contact IAI.
→ For details, refer to " Controller replacement
(page 8-18)".
.
7.4 Troubleshooting by alarm groups