![YASKAWA E-II Series User Manual Download Page 284](http://html1.mh-extra.com/html/yaskawa/e-ii-series/e-ii-series_user-manual_3758633284.webp)
10 Inspection, Maintenance, and Troubleshooting
10.1.1 Alarm Display Table
10-2
10.1 Troubleshooting
10.1.1 Alarm Display Table
The relation between alarm displays and alarm code outputs is shown in Table 10.1.
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.
• COAST TO A STOP: Stops naturally, with no brake, by using the friction resistance of the motor in oper-
ation.
Table 10.1 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
Detection data for power circuit is
abnormal.
Available
A.04
Parameter Setting Error
The parameter setting is outside the
allowable setting range.
N/A
A.05
Combination Error
SERVOPACK and servomotor capaci-
ties do not match each other.
Available
A.09
Dividing Ratio Setting Error
The setting of dividing ratio (Pn212) is
not acceptable (out of fixed incre-
ments), or exceeds the value for the
connected, encoder resolution.
N/A
A.0A
Encoder Model Unmatched
The mounted serial encoder is not sup-
ported by
Σ
-II series SERVOPACK.
N/A
A.10
Overcurrent or Heat Sink Over-
heated
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
*
Main circuit DC voltage is excessively
high.
Available
H
H
L
H
Undervoltage*
Main circuit DC voltage is excessively
low.
Available
A.51
Overspeed
The motor speed is excessively high.
Available
L
H
L
H
A.71
Overload: High Load
The motor was operating for several
seconds to several tens of seconds
under a torque largely exceeding rat-
ings.
Available
L
L
L
H
A.72
Overload: Low Load
The motor was operating continuously
under a torque largely exceeding rat-
ings.
Available
A.73
Dynamic Brake Overload
When the dynamic brake was applied,
rotational energy exceeded the capac-
ity of dynamic brake resistor.
Available
A.74
Overload of Surge
Current Limit Resistor
The main circuit power was frequently
turned ON and OFF.
Available
A.7A
Heat Sink Overheated
The heat sink of SERVOPACK over-
heated.
Available
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com