Omron G5 Series - Page 451

10 - 7
10 Troubleshooting and Maintenance
OMNUC G5-series (Pulse-train Input Type) AC Servomotors and Servo Drives User’s Manual
10-3 Alarm List
10
Alarm List
Alarm No.
Error detection function Description and error cause
Attribute
Main Sub History
Can be
cleared
Immediate
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 cutoff 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.
√√ –
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).
√√ √
1 Excessive Speed error The difference between the internal
position command speed and the actual
speed (i.e., the speed error) exceeded the
Excessive Speed Error Setting (Pn602).
√√ √
26 0 Overspeed The motor rotation speed exceeded the
value set on the Overspeed Level set
(Pn513).
√√ √
1 Overspeed 2 The motor rotation speed exceeded the
value set on the Overspeed Level set 2
(Pn615).
√√ –
27 0 Command Pulse
Frequency Error
A command pulse frequency error was
detected.
√√ √
2 Command Pulse Multiplier
Error
The command pulse divider or multiplier is
not suitable.
√√ √
28 0 Pulse Regeneration Error The pulse regeneration output frequency
exceeded the limit.
√√ √