Omron RX2 Series User Manual page 762

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