Chapter 5
5-6
Troubleshooting
■
Alarm Table
Note These alarms are not displayed on the alarm indicator on the front of the Servo Driver. They
appears on the display of the Parameter Unit.
Code
ALM
Error detection function
Cause of error
Alarm
A.04
OFF
Parameter setting error
The Servomotor does not match the
Servo Driver.
A.10
OFF
Overcurrent
Overcurrent detected, or improper radi-
ation shield temperature rise detected.
A.30
OFF
Regeneration error
Regeneration circuit damaged due to
large amount of regenerative energy.
A.32
OFF
Regeneration overload
Regenerative energy exceeded the
regeneration resistance.
A.40
OFF
Overvoltage/undervoltage Main circuit DC voltage outside the
allowable range.
A.51
OFF
Overspeed
Servomotor rotation speed exceeded
the maximum speed.
A.70
OFF
Overload
Output torque exceeded 120% of rated
torque.
A.73
OFF
Dynamic brake overload
Regenerative energy exceeded the
dynamic brake resistance during
dynamic brake operation.
A.74
OFF
Inrush resistance over-
load
Inrush current exceeded the inrush
resistance during power supply inrush.
A.7A
OFF
Overheat
Abnormal temperature rise detected in
radiation shield.
A.bF
OFF
System error
A control circuit system error was
detected.
A.C1
OFF
Runaway detected
The Servomotor rotated in the opposite
direction from the command.
A.C2
OFF
Phase error detected
The Servomotor’s electrical angle was
incorrectly detected
A.C3
OFF
Encoder disconnection
detected
Encoder phase A, B, or S is discon-
nected or shorted.
A.d0
OFF
Deviation counter over-
flow
Deviation counter’s residual pulses
exceeded the deviation counter over-
flow level set in Pn505.
CPF00
---
Parameter Unit transmis-
sion error 1
Data could not be transmitted after the
power supply was turned ON. (See
note.)
CPF01
---
Parameter Unit transmis-
sion error 2
Transmission timeout error (See note.)
Warning
A.91
---
Overload
A warning occurs before the overload
alarm (A.70) is reached. An alarm may
be generated if the Servomotor contin-
ues to operate.
A.92
---
Regeneration overload
A warning occurs before the regenera-
tion overload alarm (A.32) is reached.
An alarm may be generated if the Ser-
vomotor continues to operate.
Summary of Contents for SMARTSTEP A Series
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