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Sigma II User's Manual
Alarm Code Output
Alarm
Display
ALO1
ALO2
A.81
A.82
A.83
A.84
OFF
OFF
A.85
A.86
A.b1
A.b2
A.bF
A.C1
A.C8
ON
OFF
A.C9
A.CA
A.Cb
A.CC
ON
OFF
A.d0
ON
ON
A.F1
OFF
ON
CPF00
Not Specified
CPF01
A.--
OFF
OFF
Notes: 1.
OFF:Output transistor is OFF.
ON:Output transistor is ON.
2.
(*) These alarms are not reset for the alarm reset signal (/ALM-RST). Eliminate the cause of the
alarm and then turn OFF the power supply to reset the alarms.
3.
(
**
) This alarm display appears only within the range of 30 to 1000W.
ALM
Alarm Name
Output
ALO3
Absolute Encoder
Backup Error
Encoder Checksum
Error
Absolute Encoder Bat-
tery Error
Absolute Encoder Data
Error
OFF
OFF
Absolute Encoder
Overspeed
Encoder Overheated
Reference Speed Input
Read Error
Reference Torque
Input Read Error
System Alarm
Servo Overrun
Detected
Absolute Encoder
Clear Error and Multi-
Turn Limit Setting
Error
ON
OFF
Encoder Communica-
tions Error
Encoder Parameter
Error
Encoder Echoback
Error
Multi-Turn Limit Dis-
ON
OFF
agreement
Position Error Pulse
OFF
OFF
Overflow
Power Line Open
OFF
OFF
Phase
Digital Operator Trans-
mission Error
OFF
ON
Not an error
9-38
Chapter 9: Inspection, Maintenance, and Troubleshooting
All the power supplies for the abso-
lute encoder have failed and position
*
data was cleared.
The checksum results of encoder
*
memory is abnormal.
Battery voltage for the absolute
encoder has dropped.
Received absolute data is abnormal.
*
The encoder was rotating at high
speed when the power was turned
ON.
The internal temperature of encoder
is too high.
The A/D converter for reference
speed input is faulty.
The A/D converter for reference
torque input is faulty.
A system error occurred in the servo
*
amplifier.
The servomotor ran out of control.
The multi-turn for the absolute
encoder was not properly cleared or
set.
*
Communications between servo
*
amplifier and encoder is not possible.
Encoder parameters are faulty.
*
Contents of communications with
*
encoder is incorrect.
Different multi-turn limits have been
set in the encoder and servo ampli-
fier.
Position error pulse exceeded param-
eter (Pn505).
One phase is not connected in the
main power supply
Digital operator (JUSP-OP02A-2)
fails to communicate with servo
amplifier (e.g., CPU error).
Normal operation status
Description
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