Troubleshooting
59
11-2
Alarm
If an alarm specific to the mini Driver is generated, the motor stops. The POWER/ALARM LED blinks in red
simultaneously. At this time, the motor current is cut off and the motor holding force is lost. When an electromagnetic
brake motor is used, the electromagnetic brake is in a state of holding the motor shaft.
Before resetting an alarm, always remove the cause of the alarm and ensure safety, and perform one of the reset
operations specified below.
Execute the alarm reset via RS-485 communication.
Turn the ALM-RST input ON. (It is enabled at the ON edge.)
Execute the alarm reset using the
MEXE02
.
Turn off the main power supply and the control power supply, and on again. (The main power supply only if the
control power supply is not connected)
This section explains alarms specific to the mini Driver. Refer to the
AZ
Series OPERATING MANUAL Function Edition
when any other alarm not described here is generated.
Alarm
code
Number
of LED
blinks
Alarm type
Cause
Remedial action
How to reset
22h
3
Overvoltage
•
The voltage of the main
power supply exceeded the
permissible value (*).
•
A large load inertia was
suddenly stopped.
•
Vertical operation (elevating
operation) was performed.
•
Check the input voltage of the main
power supply.
•
Decrease the load.
•
Increase the acceleration/
deceleration time or slow the
acceleration/deceleration rate.
Any of reset
operations
29h
9
CPU peripheral
circuit error
•
A temperature significantly
higher or lower than the
specifications was detected.
•
The driver internal circuit was
damaged.
•
Reconsider the ambient temperature
and ventilation condition.
•
Turn off the main power supply and
the control power supply, and check
if the driver is damaged. After that,
turn on the main power supply and
the control power supply again. If the
alarm has still not reset, the driver
may be damaged. Contact your
nearest Oriental Motor sales office.
Turn on the
main power
supply and
control power
supply again
* It is 36 VDC when the “Main power mode” parameter is set to “24 VDC,” and 63 VDC when it is set to “48 VDC.”
