Toshiba VF-A7 instruction manual Control, ＊１ R20, R20 R46, R46 R41

[Standard connection diagram for sink logic(minus common)]

200V class: 75～90kW

400V class: 110 ～280kW

Be sure to attach DC reactor.	Dynamic braking resistor (Optional)
DC reactor (DCL)
	（Refer	to 6.13.4 for details）

*2	(Optional)
Main circuit power supply			PA	PB	PC
200V class（75,90kW）：		PO	PA
3-phase 200～230V-50Hz/60Hz
400V class（110～280kW）：
3-phese 380～460V-50Hz/60Hz

MCCB

MC

R/L1

U/T1

Motor

S/L2

Main

circuit

V/T2

IM

T/L3

W/T3

R0

Control

F

Forward

run signal

＊４ S0

circuit

R

Reverse

RUN

＊１ (R20)

ST

run signal

MC

＊３

Standby

Factory

(S20)

RES

Reset

default

FLA

＊４

S1

Preset

settings

b-contact of

FLB

Control panel

speed 1

overload relay

Surge suppressor

FL

S2

Preset

ON

OFF

FLC

speed 2

Preset

S3

RUN

P24

speed 3

RUN

SINK

S4

Preset

Connector for

*1:Connect a power source for

Ry

OUT1

SOURCE

speed 4

the control circuit.

common serial

Common

CC

communication

*2:The inverter is shipped

with

OUT2

RS485 connector

the terminals PO and PA

Ry

Current

signal

for serial

ＩＩ

shorted with a bar. Remove

G/E

communication

4～20mA

this shorting

bar and

install a DC reactor (DCL).

FP FM AM CC

RX VI

RR PP

*3:Power output for the control

circuit, which

is provided

Voltage signal：-10～+10V

only for the 400V 37kW

＋

＋

＋

and larger models.

Digital

Single-phase

Frequency Ammeter

207.5～230V-50/60Hz

voltmeter

meter

Voltage signal：0～10V

(10VA)

－

－

－

Voltmeter or ammeter

External potentiometer

*4: Connections of control power cables by voltage for the

(or voltage signal between RR and CC: 0～10V)

400V 37kW and larger models.

* Connection of a RUN relay for the 400V models

Single-phase 415～440V-50Hz

Single-phase 380～415V-50/60Hz

(R20)

R46

415～460V-60Hz

R46

R41

Control

R41

Control

(S20)

circuit

circuit

FLA

S0

S0

FLB

R20

R20

Surge suppressor

ON

OFF

FLC

S20

S20

RUN

RUN

*5: For easy maintenance and inspection, connect the control power terminals RO and SO to the primary side of the MC in the main circuit so that the control panel can be checked if only the control circuit is energized.

B-5