XtraDrive User Manual
Chapter
9
:
Inspection, Maintenance, and Troubleshooting
9-27
Alarm Code Output
Alarm
Display ALO1 ALO2 ALO3
ALM
Output
Alarm Name
Description
A.41
Undervoltage
Main circuit DC voltage is
excessively low.
A.51 ON OFF ON OFF
Overspeed
Rotational speed of the motor is
excessively high.
A.71
Overload: High Load
The motor was operating for
several seconds to several tens
of seconds under a torque
largely exceeding ratings.
A.72
Overload: Low Load
The motor was operating
continuously under a torque
largely exceeding ratings
A.73
Dynamic Brake
Overload
When the dynamic brake was
applied, rotational energy
exceeded the capacity of
dynamic brake resistor.
A.74
Overload of Surge
Current Limit Resistor
The main circuit power was
frequently turned ON and OFF.
A.7A
ON ON ON OFF
Heat Sink Overheated
**
The heat sink of servo amplifier
overheated.
A.81
Absolute Encoder
Backup Error*
All the power supplies for the
absolute encoder have failed
and position data was cleared.
A.82
Encoder Checksum
Error*
The checksum results of
encoder
memory is abnormal.
A.83
Absolute Encoder
Battery Error
Battery voltage for the absolute
encoder has dropped.
A.84
Absolute Encoder Data
Error*
Received absolute data is
abnormal.
A.85
Absolute Encoder
Overspeed
The encoder was rotating at
high
speed when the power was
turned ON.
A.86 Encoder
Overheated
The internal temperature of
encoder is too high.
A.b1
Reference Speed Input
Read Error
The A/D converter for reference
speed input is faulty.
A.b2
Reference Torque
Input
Read Error
The A/D converter for reference
torque input is faulty.
A.bF
OFF OFF OFF OFF
System Alarm*
A system error occurred in the
servo amplifier.
A.C1
Servo Overrun
Detected
The servomotor ran out of
control.
A.C2 Phase
Finding
Error
The commutation (phase
finding) procedure for motor
with A quad B encoder was
faulty
A.C8
Absolute Encoder
Clear
Error and Multi-Turn
Limit Setting Error*
The multi-turn for the absolute
encoder was not properly
cleared or set.
A.C9
Encoder
Communications
Error*
*
Communications between servo
amplifier and encoder is not
possible.
A.CA
ON OFF ON OFF
Encoder Parameter
Error*
Encoder parameters are faulty.
* These alarms are not reset by the alarm reset signal (/ALM-RST). Eliminate the cause of the alarm and then turn
OFF the power supply to reset the alarms.
** This alarm display appears only within the range of 30W to 1kW.
Note:
OFF: Output transistor is OFF.
ON: Output transistor is ON.
Summary of Contents for 8U0108-E1-01
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Page 30: ...XtraDrive User Manual Chapter 3 Wiring 3 6 3 1 4 Three Phase 400V Main Circuit Specifications...
Page 32: ...XtraDrive User Manual Chapter 3 Wiring 3 8 3 2 2 Three phase 1kW to 3kW 200V Models...
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