Omron OMNUC W R88A-NCW152-DRT, Manual

Page: 285 / 292

10 Appendix
10.3.1 Alarm Codes
10-28
10
10.3 Alarm/Warning Codes and Error Codes for
Message Communications
This section lists the alarm/warning codes and error codes for message communications.
10.3.1 Alarm Codes
Alarm codes are displayed on the front of the W-series Servo Driver and, at the same time,
can also be read as responses at the host device connected via DeviceNet. Alarms are also
displayed using the MS and NS indicators on the DeviceNet Unit.
The MS indicator is the module status; the NS indicator is the network status. The required
indicator responses are shown in the table.
The alarm codes are shown below.
Code MS LED NS LED Alarm Name Description
A.02 Flashes
Red.
−
Parameter Corruption EEPROM data of Servo Driver is abnormal.
A.03 Lit Red.
−
Main-circuit Detection Error Detection data for power circuit is abnormal.
A.04
Flashes
Red.
−
Parameter Setting Error The parameter setting is out of the allowable set-
ting range.
A.05
Flashes
Red.
−
Servomotor Mismatch Servo Driver and Servomotor capacities do not
match each other.
A.10
Flashes
Red.
−
Overcurrent An overcurrent flowed through the IGBT.
Heat sink of Servo Driver was overheated.
A.30
Lit Red.
−
Regeneration Error • Regenerative resistor is disconnected.
• Regenerative transistor is defective.
A.32 Flashes
Red.
−
Regeneration Overload Regenerative energy exceeds regenerative resis-
tor capacity.
A.33
− −
Main-circuit Power Supply Setting
Error The AC/DC wiring method of the main circuit
power supply is different from the setting of the
parameter Pn001.2 (Power Supply AC/DC Input
Selection).
A.40 Flashes
Red.
−
Overvoltage Main circuit DC voltage is excessively high.
A.41 Flashes
Red.
−
Low Voltage Main circuit DC voltage is low.
A.51 Flashes
Red.
−
Overspeed Rotational speed of the motor is excessively
high.
A.71 Flashes
Red.
−
Overload The motor was operating for several seconds to
several tens of seconds under a torque largely
exceeding ratings.
A.72
Flashes
Red.
−
Overload The motor was operating continuously under a
torque largely exceeding rating.
A.73
Flashes
Red.
−
Dynamic Brake Overload When the dynamic brake was applied, rotational
energy exceeded the capacity of dynamic brake
resistor.
A.74 Flashes
Red.
−
Inrush Resistance Overload The main circuit power was frequently turned
ON and OFF.