Arrangement And Function Of Main Circuit Terminal Block - Omron RX2 Series User Manual

2-3-2

Arrangement and Function of Main Circuit Terminal Block

The table below shows the arrangement of the main circuit terminal block and description of each termi-
nal.
Main Circuit Terminal Block
Earth-leakage
breaker
ELB
3-phase
AC power
supply
200 V class:
J51 connector
200-240 VAC
400V class:
380-500 VAC
Control circuit
power supply
Precautions for Correct Use
• EMC filter is enabled at factory default setting.
• P-PD is short-circuited when shipped from the factory. If P-PD is not connected, power is not
supplied to the main circuit, which disables operation.
Terminal
symbol
R,S,T Input terminal for main
(L1,L2,L3) power supply
U,V,W
Inverter output terminal
(T1,T2,T3)
PD,P DC reactor connection ter-
(+1,+) minal
P,RB Connection terminal for
(+,RB) external braking resistor
P,N Connection terminal for
(+,-) regenerative braking unit
Inverter earth terminal
High-function General-purpose Inverter RX2 Series User's Manual
Internal EMC filter
Short bar or terminal
Magnetic
contactor
MC
R/L1
Disable
S/L2
T/L3
R0
T0
Terminal name
Connect to the AC power supply.
Connect to the 3-phase motor.
Remove the short bar between PD and P terminals, and connect
the optional reactor DCL for improving power factor.
Connect the optional external braking resistor. For models
equipped with the braking resistor circuit, see 1-3-3 400V Class
Specifications on page 1-12. Models not equipped with the braking
resistor circuit do not have the RB terminal.
Connect the optional regenerative braking unit BRD.
The earth terminal for the Inverter case. Please connect this termi-
nal to the ground.
Conduct class-D ground work for 200V class, and class-C ground
work for 400V class.
Short bar
Enable
RB
N PD
U/T1
V/T2
W/T3
Main circuit
terminal area
Description
2 Design
3-phase AC motor
P
M M
3~
D-class grounding
(200V class)
C-class grounding
(400V class)
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