Omron RX2 Series User Manual

12 Troubleshooting
12 - 8
High-function General-purpose Inverter RX2 Series User’s Manual
The built-in electronic thermal function monitors the output current of the inverter and when a motor
overload is detected, the inverter turns OFF its output. The inverter trips according to the setting of the
motor electronic thermal function.
When a motor overload error occurred, the inverter does not accept a reset input for 10 seconds.
E005 Motor Overload Error
Occurrence Estimated cause(s) Exemplar measures to be taken
Error occurred after
a fixed period of
operation.
Operation under heavy
load condition has con-
tinued.
Re-examination of operation condition or correction of load
condition may improve the situation.
Thermal level is set high.
When the motor thermal level setting in [bC110] is not appro-
priate, re-examination of the setting may improve the situation.
Error occurred
during acceleration.
• Insufficient accelera-
tion torque
• Load inertia is large.
• Friction torque is large.
• Setting longer acceleration time in [FA-10] can ease the
insufficient acceleration torque.
• When acceleration torque is required, the situation may be
improved by adjusting the manual torque boost function, or
by operating the inverter and making adjustments with con-
trol method in [AA121].
• Re-examination of load condition may improve the situation.
A function to suppress
overcurrent is at work.
A factor for overcurrent may have been occurred. Re-exam-
ination of acceleration time or load condition is required.
Error occurred
during deceleration.
Load inertia is large.
• Setting longer deceleration time in [FA-12] can ease the
insufficient regenerative torque.
• When regenerative torque is required, the situation may be
improved by adjusting the manual torque boost function, or
by operating the inverter and adjusting with control method
in [AA121].
• Re-examination of load condition may improve the situation.
A function to suppress
overvoltage is at work.
Current may increase as a result of suppressing overvoltage.
Re-examination of deceleration time or load condition in
[FA-12] is required.
Error occurred after
long hours of use.
System environment
changes
The situation may be improved by reducing the motor load, or
performing a system maintenance (e.g., cleaning the fan to be
driven and removing clogging in the duct).
Aging deterioration
If the issue is not solved by reduction of the load and system
maintenance, aging deterioration of a life-limited component
may be the cause. A repair is required.

Omron RX2 Series Specifications

General

Brand	Omron
Model	RX2 Series
Category	Inverter
Language	English