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Reference
18.3 Warning/alarm lists
„ Alarms (protective functions)
Item
Alarm check function LED indicator
ALM output
ALM output
Alarm code output
(AL0 to AL2 outputs)
Alarm code output
Alarm code output
enable/disable setting
Power cycle/
reconnection
Alarm reset
ALM-RST input
Excessive position
deviation alarm
Alarm detection
condition setting
Overload
Overheat protection
Overload
Overspeed
Command pulse error
Overvoltage protection
Undervoltage
Excessive position
deviation during current
ON
Descriptions of
Excessive position
alarms
deviation during current
OFF
Abnormal operation data
Electronic gear setting
error
Sensor error during
operation
Initial sensor error
Initial rotor rotation error
Motor combination error
EEPROM error
−78−
When an alarm generates, the ALARM LED on the front face of the driver will
blink. The number of times the LED blinks varies depending on the content of
the alarm.
This signal will be output when an alarm generates.
These outputs are used by the programmable controller to detect the content
of each alarm that has generated.
Set when outputting alarm codes.
Cycle the main power to reset alarms.
Input the ALM-RST signal to reset alarms.
Set the condition under which an excessive position deviation alarm generates
when the motor is in a state of current ON.
Set the condition under which an overload detection alarm generates when
the motor is in a state of current OFF. The overload condition varies depending
on the control mode.
Normal mode: A position deviation of 1.8° or more has occurred.
Current control mode: The operating current has reached the limit.
The internal temperature of the driver exceeded 85 °C (185 °F).
The cumulative value of applied loads exceeding the peak torque reached or
exceeded the value set in the parameter for overload [APP-5-03].
The speed of the motor output shaft exceeded 4500 r/min (excluding geared
motors).
The command pulse frequency exceeded the specified value.
• A voltage exceeding the specified value was applied.
• A large inertial load was operated.
The main power was cut off momentarily or the voltage became low.
• When the motor was in a state of current ON, the deviation between
the command position and actual position exceeded the value set in the
parameter for overflow rotation during current on [APP-5-01].
• The load is large or acceleration/deceleration rate is low.
The C-ON input was turned ON while an excessive position deviation warning
at current OFF was present.
Return to electrical home operation was performed while an abnormal
operation data warning was present.
The power was turned on when the resolution set by the electronic gear was
outside the specified range.
A sensor error occurred while the motor was operating.
A sensor error occurred when the power was turned on.
The motor output shaft rotated at a speed of 15 r/min or more while the
initialization was still in progress following a power on.
A motor not supported by the driver is connected.
Data stored in the driver was damaged.
Overview/condition
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