Protection function
−
49
−
No. of ALARM
LED blinks
Alarm name Cause Remedial action
Reset using the
ALARM-RESET
input
7 Overcurrent
Excessive current has own
through the driver due to
ground fault, etc.
Check the wiring between the
driver and motor for damage. If the
alarm does not reset even after
the power supply has been cycled,
contact your nearest ofce.
Not possible
8 EEPROM error
•
Stored data was damaged.
•
Data became no longer
writable or readable.
Initialize the parameters if the
OPX-2A
or
MEXE02
is used. If the
alarm does not reset even after
the power supply has been cycled,
contact your nearest ofce.
9
Overheated
regeneration unit
•
Overheating of the
regeneration unit was
detected.
•
Lead wires of the thermostat
output of the regeneration
unit broke during operation.
•
The main power supply
of the driver was turned
on before turning on the
external power supply for
input signals.
•
The power consumption of the
regeneration resistor exceeds
the permissible level. Review
the load condition and operating
conditions.
•
Check the connection between
the lead wires of the regeneration
unit/thermostat output and CN5
on the driver.
•
Before turning on the main power
supply of the driver, turn on the
external power supply for input
signals.
Possible
10 External stop
*1
The EXT-ERROR input turned
OFF.
Check the EXT-ERROR input.
11
Initial operation
inhibition
*2
The main power supply was
cycled when the FWD input or
REV input was ON.
Turn the FWD input and REV input
OFF, and then cycle the main
power supply.
14
Main circuit output
error
*3
The motor drive wire broke or
motor power connector came
off.
Check the connection between the
driver and motor.
*1
Only when EXT-ERROR is assigned using the
OPX-2A
or
MEXE02
.
*2
This alarm generates when the “Initial operation inhibition” function has been enabled using the
OPX-2A
or
MEXE02
. This alarm does
not generate in the
FBL
Ⅱ
compatible mode.
*3
This alarm does not generate when the torque limit is set to less than 200% using the
OPX-2A
or
MEXE02
.
Note Cycle the power to reset the overcurrent and EEPROM error alarms. To cycle the power, wait for at least
30 seconds after the power is cut off and then turn it back on. If the unit does not operate properly after the
power is cycled, internal circuit damage is suspected. Please contact your nearest ofce.