Omron OMNUC G User Manual page 389

Alarms
Alarm Alarm
Display Type
11 X
12 ---
13 X
14 PR
15 PR
16 ---
18 PR
21 PR
23 PR
24 ---
26 ---
27 PR
29 ---
34 ---
PR
36
X
PR
37
X
38 X
40 PR
41 PR
42 PR
44 PR
45 PR
47 ---
Error Detection Function
Control power supply undervoltage
Overvoltage
Main power supply undervoltage
Overcurrent
Servo Drive overheat
Overload
Regeneration overload
Encoder communications error
Encoder communications data error
Deviation counter overflow
Overspeed
Command error
Internal deviation counter overflow
Overrun limit error
Parameter error
Parameter corruption
Drive prohibit input error
Absolute encoder
system down error
Absolute encoder counter
overflow error
Absolute encoder
overspeed error
Absolute encoder
one-turn counter error
Absolute encoder
multi-turn counter error
Absolute encoder
status error
Detection Details and Cause of Error
The DC voltage of the main circuit has
dropped below the specified value.
The DC voltage of the main circuit is
abnormally high.
The DC voltage of the main circuit is low.
Overcurrent flowed to the IGBT. Servomotor
power line ground fault or short circuit.
The temperature of the Servo Drive radiator
exceeded the specified value.
Operation was performed with torque
significantly exceeding the rating for several
seconds to several tens of seconds.
The regenerative energy exceeded the
processing capacity of the regeneration
resistor.
Communications between the encoder and
the Servo Drive failed for a specified number
of times, thereby activating the error detection
function.
Communications error occurred for the data
from the encoder.
The number of position deviation pulses
exceeded the Deviation Counter Overflow
Level (Pn209).
The rotation speed of the Servomotor
exceeded the setting of the Overspeed
Detection Level Setting (Pn073).
The operation command resulted in an error.
The value of the internal deviation counter
(internal control unit) exceeded 2
(134217728).
The Servomotor exceeded the allowable
operating range set in the Overrun Limit
Setting (Pn026) with respect to the position
command input.
Data in the parameter save area was
corrupted when the data was read from the
EEPROM at power-ON.
The EEPROM write verification data was
corrupted when the data was read from the
EEPROM at power-ON.
Forward and Reverse Drive Prohibit Inputs
(NOT and POT) both became OPEN.
The voltage supplied to the absolute encoder
ABS
dropped below the specified value.
The multi-turn counter of the absolute
ABS
encoder exceeded the specified value.
The Servomotor rotation speed exceeded the
ABS
specified value when power to the absolute
encoder is supplied by the battery only.
ABS A one-turn counter error was detected.
A multi-turn counter error or phase-AB signal
ABS
error was detected.
The rotation of the absolute encoder is higher
ABS
than the specified value.
8-2 Alarm Table
27
8-4
8