YASKAWA SGM H Series User Manual page 541

Alarm
Alarm Name
Display
A.71
Overload: High Load
A.72
Overload: Low Load
Dynamic Brake Overload
A.73
(Not detected for the SERVOPACKs
with the capacity of 30 W to 1.0 kW.)
Overload of Surge
A.74
Current Limit Resistor
Heat Sink Overheated
A.7A
(Not detected for the SERVOPACKs
with the capacity of 30 W to 1.0 kW.)
A.81
Encoder Backup Error
A.82
Encoder Checksum Error
A.83
Absolute Encoder Battery Error
A.84
Encoder Data Error
A.85
Encoder Overspeed
A.86
Encoder Overheated
A.b1
Reference Speed Input Read Error
A.b2
Reference Torque Input Read Error
A.b3
Current Detection Error
A.bF
System Alarm
A.C1
Servo Overrun Detected
Absolute Encoder Clear Error and
A.C8
Multiturn Limit Setting Error
A.C9
Encoder Communications Error
A.CA
Encoder Parameter Error
A.Cb
Encoder Echoback Error
A.CC
Multiturn Limit Disagreement
A.d0
Position Error Pulse Overflow
A.F1
Power Line Open Phase
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Table 11.1 Alarm Displays and Outputs (Cont'd)
The motor was operating for several
seconds to several tens of seconds
under a torque largely exceeding rat-
ings.
The motor was operating continuously
under a torque largely exceeding rat-
ings.
When the dynamic brake was applied,
rotational energy exceeded the capac-
ity of dynamic brake resistor.
The main circuit power was frequently
turned ON and OFF.
The heat sink of SERVOPACK over-
heated.
All the power supplies for the absolute
encoder have failed and position data
was cleared.
The checksum results of encoder
memory is abnormal.
Backup battery voltage for the abso-
lute encoder has dropped.
Data in the encoder 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.
The current sensor is faulty, or the ser-
*1
vomotor is disconnected.
A system error occurred in the SER-
VOPACK.
The servomotor ran out of control.
The multiturn for the absolute encoder
was not properly cleared or set.
Communications between SERVO-
PACK and encoder is not possible.
Encoder parameters are faulty.
Contents of communications with
encoder is incorrect.
Different multiturn limits have been
set in the encoder and SERVOPACK.
Position error pulse exceeded parame-
ter (Pn505).
One phase is not connected in the
main power supply.
Alarm
Meaning
Reset
Available
Available
Available
Available
Available
N/A
N/A
Available
N/A
N/A
N/A
Available
Available
Available
N/A
Available
N/A
N/A
N/A
N/A
N/A
Available
Available
11.1 Troubleshooting
Alarm Code Output Servo
Alarm
(ALM)
ALO1 ALO2 ALO3
Output
L L L H
H H H H
L H L H
L L H H
H L H H
11-3
11