Omron 3G3JV Manual page 3

Conventional Systems Conventional Systems
Relay contact welding occurs, which
may put the system and operators in
danger. Furthermore, the life of the
system is comparatively short.
The system employs a gearbox for
speed control, the designing and
Breaker
adjustment of which require time and
labor.
To ensure the safety of the system, the
system needs peripheral safety
Open-phase
devices, the wiring of which requires detection
time and labor.
The motor always rotates at top speed,
consuming a high amount of power.
A strong shock is produced when the
motor is driven, which may cause
loads to shift, deteriorate the quality of
products, or put the system and
operators in danger.
Contactor
Three-phase
inductive
motor
Current leakage
detection
Gear box Starter
Conventional Systems
Conventional Systems
A strong shock results at the moment
the motor is driven, which may cause
load shifting, deteriorates the quality of
products, or puts the system and
operators in danger.
The capacity of the motor is small.
Therefore, the rotation speed of the
motor will drop if a speed reducer is
Breaker
used for the maintenance of the torque.
The rotation of the motor fluctuates.
Failures in the motor are not detected
by the host controller.
The types of available motors are
limited.
Gear box
Speed controller
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3G3JV Inverter Solutions
3G3JV Inverter Solutions
A 3G3JV Inverter has no mechanical
relay contacts and thus allows a safe,
long-life system operation.
A 3G3JV Inverter performs versatile
speed control, such as multi-step speed
control for up to nine steps, acceleration
and deceleration (UP/DOWN) control,
and jog operations.
A 3G3JV Inverter provides a variety of
Breaker
protective functions, such as a high-
speed current limit, ground fault
protection, and undervoltage protection.
A 3G3JV Inverter drives the motor at
flexible speeds within the rated speed
range of the motor, thus reducing motor
power consumption.
A 3G3JV Inverter provides soft-start and
soft-stop functions, preventing loads
from shifting and deterioration of product
3G3JV
Inverter
quality, while ensuring the safety of the
system.
Three-phase
inductive motor
3G3JV Inverter Solutions
3G3JV Inverter Solutions
A 3G3JV Inverter provides soft-start and
soft-stop functions, preventing loads
from shifting and deterioration of
product quality while ensuring the safety
of the system.
The 3G3JV Inverters are available up to
a maximum motor capacity of 3.7 kW
and ensure smooth rotation speed and
torque in the motor.
Breaker
A three-phase motor has less speed
fluctuation compared with a single-
phase motor, ensuring the safe
operation of the system.
A 3G3JV Inverter can report errors in
contact outputs or data to a host
controller, such as a Programmable
Controller.
3G3JV
A wide range of motors is available.
Inverter
Three-phase
inductive motor
A 3G3JV Inverter provides soft-start and soft-stop functions to
prevent loads from shifting. Furthermore, a 3G3JV Inverter
performs flexible speed control of the conveyor up to nine
steps.
A 3G3JV Inverter provides optimum control of fan speed
according to the room temperature. The 3G3JV Inverter has
no mechanical relay contacts, ensuring the safety and
reliability of the system compared with the ON/OFF control of
contactors. Optimum control of fan speed also saves energy.
A 3G3JV Inverter performs flexible speed control of a compact
agitator or separator.
A 3G3JV Inverter provides multi-step speed control to open
and close an electric shutter safely and efficiently. The shutter
opens quickly at a high speed, but closes at a medium-range
speed while the system checks the safety of the operation and
decelerates to low speed before it is fully closed to prevent
people from being caught by the shutter.
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