Yaskawa Large Capacity Sigma II Series - Manual (Page 376)

8.2 Troubleshooting
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8.2.3 Alarm Display Table
A summary of alarm displays and alarm code outputs is given in the following table.
Table 8.5 Alarm Display Table
Alarm
Display
Alarm Code Outputs ALM Output Alarm Name Meaning
ALO1 ALO2 ALO3
A.02 OFF OFF OFF OFF
Parameter Breakdown
∗1 EEPROM data of SERVOPACK is abnor-
mal.
A.03 Main Circuit Encoder Error Detection data for power circuit is abnormal.
A.04
Parameter Setting Error
∗1 The parameter setting is outside the allowable
setting range.
A.05 Combination Error SERVOPACK and servomotor capacities do
not match each other.
A.10 ON OFF OFF OFF Overcurrent or Heat Sink
Overheated
∗1
An overcurrent flowed through the IGBT.
Heat sink of SERVOPACK was overheated.
A.30 ON ON OFF OFF Regeneration Error Detected • Regenerative circuit is faulty.
• Regenerative resistor is faulty.
A.32 Regenerative Overload Regenerative energy exceeds regenerative
resistor capacity.
A.40 OFF OFF ON OFF
Overvoltage ∗2 Main circuit DC voltage is excessively high.
A.41
Undervoltage
∗2 Main circuit DC voltage is excessively low.
A.51 ON OFF ON OFF Overspeed Rotational speed of the motor is excessively
high.
A.71 ON ON ON OFF 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, rota-
tional 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
Heat Sink Overheated
The heat sink of SERVOPACK overheated.