Description Of Terminals; Main Circuit Terminals - Toshiba TOSVERT VF-AS1 Instruction Manual

2.3

Description of terminals

2.3.1 Main circuit terminals

This diagram shows an example of wiring of the main circuit. Use options if necessary.
Power supply and motor connections
Power supply
2
Connection with peripheral equipment
No-fuse
breaker
Power
supply
Main circuit
Terminal symbol
R/L1, S/L2, T/L3
(R/L1.1, S/L2.1, T/L3.1,
R/L1.2, S/L2.2, T/L3.2)
*1
U/T1, V/T2, W/T3
PA/+, PB
(PA, PB) *2
PC/-
PO, PA/+
RO, SO, TO
*1: Value in ( ) 400V-355~500kW.
*2: Value in ( ) 200V-55kW or larger, 400V-90~160kW.
Connect the power
cables to RL1, S/L2,
and T/L3.
R/L1 S/L2
No-fuse
breaker
High-attenuation
Input AC radio noise
Magnetic
contactor reactor reduction filter
Simplified
radio noise
filter
Grounding terminal for inverter casing
Power input terminal
200V class:
0.4~75kW Three-phase 200~240V-50/60Hz
Connect to a (3-phase induction) motor.
Connect a braking resistor.
Change the parameters ,  and  if necessary.
200kW models and larger are not equipped with terminal PB.
This is a negative potential terminal in the internal DC main circuit. DC power supply can be input
across the PA/+ terminals (positive potential). (For 200V-18.5kW or more models, and 400V-22kW
or more models, an optional circuit is needed to suppress a rush current.)
Terminals for connecting a DC reactor (DCL: optional external device). Shorted by a short bar when
shipped from the factory (200V: 45kW or smaller, 400V: 75kW or smaller). Before installing DCL,
remove the short bar. (The rating of 400V-355~500 kW have the double terminals of PO.)
200V class: 75kW
Inverter's cooling fan power input terminals. When using a DC power supply, connect three-phase
power cables. When using DC power for the main circuit, be sure to connect a three-phase power
supply to these terminals.
VF-AS1
Connect the motor
cables to U/T1, V/T2
and W/T3.
T/L3 U/T1 V/T2 W/T3
Inverter U/T1
R/L1
S/L2 V/T2
W/T3
T/L3
PA/+ P0 PA PB
DC reactor
Braking resistor [Note]
Terminal function
400V class:
0.75~90kW Three-phase 380~480V-50/60Hz
110~500kW Three-phase 380~440V-50Hz
400V class:110kW~500kW
B-10
E6581445
Motor
E
Surge
suppressing filter
Motor
IM
Zero-phase
reactor
Note: Connect a braking unit between
the terminals PA/+ and PC/-, if
necessary.
Three-phase 380~480V-60Hz