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)