Harmonic Drive HS-360 Series, Руководство пользователя

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Chapter 8 Protective functions
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8-2 Details of protective functions
Memory failure
(Alarm clear: Impossible)
●
Description
This function indicates that an alarm has occurred due to driver EEPROM memory failure. This
alarm cannot be reset.
●
Possible causes
(1) If the alarm occurs when the power is turned on:
‹
Cause 1: Failure in HS-360 driver control circuit
⇒
Action: Contact a business office of Harmonic Drive Systems.
(Replacing the HS-360 driver)
(2) If the alarm occurs during operation:
‹ Cause 1: A device of the HS-360 driver control circuit malfunctioned.
⇒
Action: Contact a service department or a business office of Harmonic Drive Systems.
(Replacing the HS-360 driver)
In addition, check whether there is any improper point regarding the ambient conditions for
the location of instruction. Do this according to the instructions in “Section 4-3, Location and
installing”.
Overload
(Alarm clear: Possible)
●
Description
This function continuously monitors the motor current. When both the current and the time
applied exceed the curve shown in the figure, this function causes an overload alarm to occur.
For example,
(1)When a current of approximately
1.2-times the actuator rated current is
generated for a long time, the alarm
occurs.
(2) When a current of approximately
3-times the actuator rated current is
generated for approximately 20s, the
alarm occurs.
●
Possible causes
(1) If alarm occurs when the power
is turned on:
◆ Cause 1: A device of the HS-360
driver control circuit malfunctioned.
⇒
Action: Contact a service department
or a business office of Harmonic
Drive Systems.
(Replacing the HS-360 driver)
1000
100
10
Oper
ation time
（ｓ
）
Current carrying capacity
(Maximum current)
Actuator current
× 1
× 2
×
3
Approximately 1.2 times rated
current
Overload area