E6581611
B-6
2
2.3 Description of terminals
2.3.1 Power circuit terminals
Connections with peripheral equipment
Motor
Power
supply
Inverter
Braking resistor
Molded-case
circuit braker
R/L1
S/L2
T/L3
PA/+
PB
V/T2
U/T1
W/T3
M
Magnetic
contactor
Input AC
reactor
noise
reduction filter
Zero-phase
reactor
Note 1: The T/L3 terminal is not provided for any single-phase models. So if you are using single-phase
models, use the R/L1 and S/L2/N terminals to connect power cables.
Power circuit
Terminal symbol Terminal function
Grounding terminal for connecting inverter. There are 3 terminals in cooling fin or
mounting part of EMC plate.
R/L1,S/L2,T/L3
240V class : Three-phase 200 to 240V-50/60Hz
: Single-phase 200 to 240V-50/60Hz
500V class : Three-phase 380 to 500V-50/60Hz
* Single-phase inputs are R/L1 and S/L2/N terminals.
U/T1,V/T2,W/T3
Connect to three-phase motor.
PA/+, PB
Connect to braking resistors.
Change parameters , , , if necessary.
PA/+
This is a positive potential terminal in the internal DC main circuit.
DC common power can be input between PA/- terminal and PC/- terminal.
PC/-
This is a negative potential terminal in the internal DC main circuit.
DC common power can be input between PC/- terminal and PA/+ terminal.
PO, PA/+
Terminals for connecting a DC reactor (DCL: optional external device). Shorted by a
Shorting-bar when shipped from the factory. Before installing DCL, remove the
shorting- bar.
The arrangements of power circuit terminals are different from each range.
Refer to section 1.3.3.1) for details.
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