Chapter 7 Troubleshooting
H
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Operating temperature error
(Alarm clear: not available)
●
Description
The alarm occurs when the temperature of the HA-680 main unit increases and the temperature sensor
trips. To release the alarm after troubleshooting, shut off the control power and turn it on again.
●
Diagnostic tips
(1) Alarm occurs when the control circuit power is turned on:
◆
Cause 1: Failure of the temperature sensor of the HA-680 driver.
⇒
Remedy: Contact Harmonic Drive Systems,Inc. (Replace the HA-680 driver)
(2) Alarm occurs while the motor is running:
◆
Cause 1: The motor is in an overload state while running.
⇒
Remedy: Review the effective load factor of the actuator to reduce the load factor.
◆
Cause 2: The ambient temperature around the HA-680 driver is over 50
°
C.
⇒
Remedy: Review the installation location and cooling system of the HA-680 driver.
System error
(Alarm clear: not available)
●
Description
This alarm occurs when an error of the current detection circuit is detected. To release the alarm after
troubleshooting, shut off the control power and turn it on again.
●
Diagnostic tips
(1) Alarm occurs when the control circuit power is turned on:
◆
Cause 1: Failure of the current detection circuit of the HA-680 driver
⇒
Remedy: Contact Harmonic Drive Systems,Inc. (Replace the HA-680 driver)
(2) Alarm occurs occasionally while the motor is running:
◆
Cause 1: Malfunction due to external noise
⇒
Remedy: Take noise prevention measures according to “3-4 Suppressing noise” in
this manual.
◆
Cause 2: Failure of the current detection circuit of the HA-680 driver
⇒
Remedy: Contact Harmonic Drive Systems,Inc. (Replace the HA-680 driver)
Содержание HA-680 Series
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