Omron RX2 Series User Manual page 769

E030 IGBT Error
At the time of an instantaneous overcurrent or the main element failure, the inverter turns OFF its out-
put to protect the main element.
Overcurrent error may be issued instead.
Occurrence
Error occurred right
after the operation
started.
Error occurred right
after power was
turned ON.
Error occurred
during operation.
E034 Output Open-phase Error
When the output phase loss selection [bb-66] is set to 01, when a loose connection or disconnection of
output line, disconnection inside the motor, etc. is detected, the inverter turns OFF its output. Detection
of phase loss state is executed in the section between 5 Hz to 100 Hz.
Occurrence
Error occurred right
after the operation
started.
Error occurred after
long hours of opera-
tion.
High-function General-purpose Inverter RX2 Series User's Manual
Estimated cause(s)
• A ground fault has
After the power is turned OFF, you need to check the wires
occurred.
connected to the motor, motor disconnection, and the like. If
the error occurs after removal of the motor wires, the inverter
• Output line is short-cir-
is broken down. It needs to be repaired.
cuited.
A large current may flow when the motor rotation is locked
Motor rotation is locked.
during operation. The cause needs to be removed.
Output element is broken
If output element is broken down, it needs to be repaired.
down.
Output element is broken
If output element is broken down, it needs to be repaired.
down.
A large current may flow when the motor rotation is locked
Motor rotation is locked.
during operation. The cause needs to be removed.
Estimated cause(s)
An output line or the You need to turn OFF the power supply and check the output
motor has a loose con- lines and the wiring condition of motor. This error can also
nection or is discon- occur due to motor insulation breakdown or screw tightening
nected. failure.
Single-phase output is
For output lines, use three-phase connection.
used.
An output line or the You need to turn OFF the power supply and check the output
motor has a loose con- lines and the wiring condition of motor. If there is a loosened
nection or is discon- screw, the situation may be improved by re-tightening the
nected. screw.
12 Troubleshooting
Exemplar measures to be taken
Exemplar measures to be taken
12
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