Using A Braking Unit And Braking Resistor Unit - Omron SYSDRIVE RV Series User Manual

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)
3-phase power
200 to 230 V 50/60 Hz
-20
10
DC Reactor to
improve input
A sequence is required to turn
power factor
OFF the power supply for the
(Optional)
thermal overload relay trip con-
tacts of the Braking Resistor
Unit.
Short-circuit bar
MCCB
Overload relay trip contact
of Braking Resistor Unit
Fault contacts
Forward Run/Stop Forward Run/Stop
Reverse Run/Stop
Braking Unit
External fault
Braking Unit
(Optional)
Level
detector
Braking Resistor overheating contacts
(Thermal overload relay trip contacts)
Motor
R/L1
U/T1
V/T2
S/L2
T/L3 W/T3
Inverter
Ground to 100 Ω 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 command (forward run when ON)
Reverse run command (reverse run when ON)
Fig 10.10
*2
Braking Resistor Unit
(Optional)