Protective Functions And Troubleshooting; Error Code List - Omron SYSDRIVE RX Series User Manual

5-1 Protective Functions and Troubleshooting

5Maintenance Operations
5-1 Protective Functions and
Troubleshooting

Error Code List

Name
If the motor is
restrained or rapidly
accelerated or
decelerated, a large
5
current flows through
the Inverter, which
results in a
malfunction. The
current exceeding
the specified level
shuts off the output
Overcurrent
and an error
trip appears.
This protection
function detects an
overcurrent through
the AC CT (current
detector).
The protection circuit
is activated at
approximately 220%
of the Inverter rated
output current and a
trip occurs.
Monitors the Inverter output current
and shuts off the output, displaying
Overload
an error if the built-in electronic
trip
thermal function detects overload
*1
against the motor.
Trips depending on the electronic
thermal function settings.
5-1
Display on
Description Digital
Operator
Constant
ek0k1.
speed
Deceleration
ek0k2.
Acceleration
ek0k3.
Others
ek0k4.
ek0k5.
Check point and remedy
Is there any rapid load fluctuation?
(Eliminate load fluctuation.)
Is there any output short-circuit?
(Check the output wires.)
Is there any ground fault?
(Check the output wires and motor.)
Is there any rapid deceleration?
(Increase the deceleration time.)
Is there any rapid acceleration?
(Increase the acceleration time.)
Has the motor shaft been locked?
(Check the motor and wires.)
Is the torque boost too high?
(Lower the torque boost.)
Is the DC injection braking too high?
(Lower the injection breaking.)
Is there any error on CT?
(Replace or repair the CT.)
Is the load too large?
(Reduce the loading factor.)
Is the thermal level correct?
(Adjust the thermal level to an appropriate
level.)
Note: The electronic thermal function is set to
work easily at 5 Hz or lower. If a large
load inertial moment is applied, the
overload protect function works when
the motor starts accelerating, and
prevents it from accelerating. In this
case, increase the torque boost or take
other measures for adjustment.
Reference
page
⎯
4-8
4-37
4-8
4-19
4-20
4-21
4-37
4-24
4-46
4-47
4-48
4-49