Product specifications

Chapter 7 Troubleshooting
HA-680_V04
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Memory Error (EEPROM) (Alarm clear: not available)
Description
This alarm occurs when the driver’s EEPROM memory fails. To release the alarm after troubleshooting,
shut off the control power and turn it on again
Diagnostic tips
(1) Alarm occurs when the control power is turned on:
Cause 1: The control circuit of the HA-680 driver may have failed.
Remedy: Contact Harmonic Drive Systems. (Replace the HA-680 driver)
(2) Alarm occurs during running
Cause 1: Malfunction of a control circuit element of the HA-680 driver
Remedy: Contact Harmonic Drive Systems. (Replace the HA-680 driver)