Omron SYSDRIVE 3G3EV SERIES User Manual


Data
display
Description Cause and action
 Overcurrent (OC)
The Inverter output current
instantaneously exceeded 250% of the
rated amperage.
•The output side of the Inverter is
shorted or grounded.
•Load inertia is excessive.
•The acceleration and deceleration
time settings are too short.
•A special motor is used.
•The motor was started during free
running.
•The magnetic contactor on the output
side of the Inverter was opened and
closed.
•Determine the cause of the error, take
the necessary action, and reset the
system.
 Main circuit overvoltage (OV)
Because regenerative energy from the
motor was excessive, the DC voltage
of the main circuit exceeded
approximately 410 V.
•The deceleration time setting is too
short.
•Increase the deceleration time.
•Connect a braking resistor (or braking
resistor unit).
 Main circuit undervoltage (UV1)
The DC voltage of the main circuit
dropped below the specified level.
3G3EV-A2R:
Approximately 200 V or less
3G3EV-ABR:
Approximately 160 V or less
•The input power voltage dropped.
•Open-phase occurred.
•An instantaneous power interruption
occurred.
•Check the power voltage.
•Check the power input line for discon-
nection.
•Check the terminal block screws for
looseness.
 Control power supply fault (UV2)
A voltage fault occurred in control
power supply.
•Turn the power off, then on.
•If this problem persists, replace the
Unit.
 Chapter 5

Omron SYSDRIVE 3G3EV SERIES Specifications

General

Brand	Omron
Model	SYSDRIVE 3G3EV SERIES
Category	Inverter
Language	English