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11-7
11-3 Alarms
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
11
Error and Maintenance
Alarm List
Alarm
number
Error detection function
Detection details and
probable cause
Attribute
Main Sub
History
Can be
reset
Emergency
stop *1
11
0
Control power supply
undervoltage
The DC voltage of the main circuit fell
below the specified value.
12
0
Overvoltage
The DC voltage in the main circuit is
abnormally high.
13
0
Main power supply
undervoltage
(Insufficient voltage
between P and N)
The DC voltage of the main circuit is
low.
1
Main power supply
undervoltage
(AC cut-off detection)
A location was detected where the
main circuit AC power supply is cut off.
14
0
Overcurrent
Overcurrent flowed to the IGBT.
1
IPM error
Motor power line ground fault or short
circuit.
15
0
Servo Drive overheat
The temperature of the Servo Drive
radiator exceeded the specified value.
16
0
Overload
Operation was performed with torque
significantly exceeding the rating for
several seconds to several tens of
seconds.
*2
18
0
Regeneration overload
The regenerative energy exceeds the
processing capacity of the
Regeneration Resistor.
1
Regeneration Tr error
An error was detected in a Servo Drive
regeneration drive Tr.
21
0
Encoder communications
disconnection error
The encoder wiring is disconnected.
1
Encoder communications
error
An encoder communications error
was detected.
23
0
Encoder communications
data error
Communications cannot be performed
between the encoder and the Servo
Drive.
24
0
Error counter overflow
The error counter accumulated pulse
exceeds the set value for the Error
Counter Overflow Level (Pn014).
25
0
Excessive hybrid error
During full closing control, difference
between the load position from
external encoder and the motor
position from to encoder was larger
than the pulse set by the Internal/
External Feedback Pulse Error
Counter Overflow Level (Pn328).