YASKAWA SGLFW, User Manual

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11 Inspection, Maintenance, and Troubleshooting
11.1.1 Alarm Display Table
11-2
11.1 Troubleshooting
11.1.1 Alarm Display Table
The relation between alarm displays and alarm code outputs is shown in Table 11.1.
If an alarm occurs, the servomotor can be stopped by doing either of the following operations.
• DB STOP: Stops the servomotor immediately using the dynamic brake.
• Coasting to a stop: Stops the servomotor naturally with friction when the motor is running and not brak-
ing.
Table 11.1 Alarm Displays and Outputs
Alarm
Display
Alarm Name Meaning
Alarm
Reset Alarm Code Output Servo
Alarm
(ALM)
Output
ALO1 ALO2 ALO3
A.02 Parameter Breakdown EEPROM data of SERVOPACK is
abnormal.
N/A
H H H H
A.03 Main Circuit Encoder Error
(Not detected for the SERVOPACKs
with the capacity of 7.5 kW or more.) Detection data for power circuit is
abnormal.
Available
A.04 Parameter Setting Error • The parameter setting is outside the
allowable setting range.
• Pn080.0=1 was set though a hall
sensor was connected.
N/A
A.05 Combination Error • SERVOPACK and servomotor
capacities do not match each other.
• The linear servomotor and
SERVOPACK voltage specifica-
tions do not correspond to each
other.
Available
A.08 Linear Scale Pitch Setting Error
The initial value (0
µ
m) is set for the
linear scale pitch (Pn280).
N/A
A.09
Dividing Ratio Setting Error
*1 • A value higher than the motor peak
speed that can be obtained from the
dividing ratio was set for Pn384.
• When connecting the linear servo-
motor, a value higher than the maxi-
mum dividing ratio that can be
obtained from the linear servomotor
peak speed was set for Pn281.
N/A
A.0A
Encoder Type Mismatching
*1 The mounted serial encoder is not sup-
ported by
Σ
-II series.
N/A
A.10
Overcurrent or Heat Sink Overheated An overcurrent flowed through the
IGBT.
Heat sink of SERVOPACK was over-
heated.
N/A
L H H H
A.30
Regeneration Error Detected Regenerative transistor or regenerative
resistor is faulty.
Available
L L H H
A.32
Regenerative Overload Regenerative energy exceeds regener-
ative resistor capacity.
Available
A.33
Main Circuit Power
Supply Wiring Error The power supply to the main circuit
does not match the parameter Pn001
setting.
Available
A.40
Overvoltage *2 Main circuit DC voltage is excessively
high.
Available
H H L H
A.41
Undervoltage *2 Main circuit DC voltage is excessively
low.
Available