Omron SYSDRIVE 3G3RV, User Manual, Page: 430 / 446

Wiring Examples
10-
7
10
Wiring Examples
This
section provides wiring examples to connect a Braking Unit and other peripheral devices to the main
circuits,
examples of wiring a transformer to Inverter I/O, and other aspects of Inverter wiring.
K K K K
Using a Braking Resistor Unit
This
example shows wiring for a Braking Resistor Unit.
3G3RV-A2004
to 3G3RV-A2185 (200-V class Inverters of 0.4 to 18.5 kW)
3G3RV-4004
to 3G3RV-A4185 (400-V class Inverters of 0.4 to 18.5 kW)
Fig 10.2
K K K K
Using a Braking Unit and Braking Resistor Unit
This
example shows wiring for a Braking Unit and Braking Resistor Unit.
3G3RV-A2220,
3G3RV-A2300 (200-V class Inverters of 22 kW, 30 kW)
Fig 10.3
* 1. A transformer is not required for 200-V class
* 2. Remove the short-circuit bar (normally connected) from + 1 and
+ 2 when connecting a DC Reactor (Optional).
* 3. Disable stall prevention during deceleration by setting L3-04 and
using a Braking Resistor Unit. The motor may not stop within the
deceleration time if this setting is not changed.
3-phase power
200 to 230 V 50/60 Hz
or 380 to 460 V
50/60 Hz
A sequence is required to turn
OFF the power supply for the ther-
mal overload relay trip contacts of
the Braking Resistor Unit.
Short-circuit bar
DC Reactor to
improve input
power factor
(Optional)
Braking Resistor overheating contacts
(Thermal overload relay trip contacts)
Braking Resistor Unit
*3
Inverter
Overload relay trip contact
of Braking Resistor Unit
Fault contacts
Motor
200-V class Inverters: Ground to
100
max., 400-V class Inverters:
Ground to 10
Ω
max.)
R/L1
S/L2
T/L3
U/T1
V/T2
W/T3
MC
3-phase power
200 to 230 V 50/60 Hz
A sequence is required to turn
OFF the power supply for the
thermal overload relay trip con-
tacts of the Braking Resistor
Unit.
DC Reactor to
improve input
power factor
(Optional)
Short-circuit bar
MCCB
Overload relay trip contact
of Braking Resistor Unit
Fault contacts
Braking Unit
(Optional)
Inverter
Motor
Level
detector
Braking Resistor Unit
*2
(Optional)
Braking Resistor overheating contacts
(Thermal overload relay trip contacts)
Ground to 100 max.
* 1. Remove the short-circuit bar (normally connected) from + 1 and + 2 when
connecting a DC Reactor (Optional).
* 2. Disable stall prevention during deceleration by setting L3-04 and using a
Braking Resistor Unit. The motor may not stop within the deceleration time
if this setting is not changed.
Forward Run/Stop
Reverse Run/Stop
Braking Unit
External fault
Forward run command (forward run when ON)
Reverse run command (reverse run when ON)
R/L1
S/L2
T/L3
U/T1
V/T2
W/T3
Forward Run/Stop