Delta Electronics VFD-VL manual Main Circuit Main Circuit Connection, Brak e res istor, Motor

Models: VFD-VL

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Chapter 2 Installation and Wiring

2.3Main Circuit

2.3.1 Main Circuit Connection

 

 

 

Brak e res istor

 

 

 

*EPS

(O pti onal)

 

Non-fuse break er

 

 

 

(NFB)

MC

+ -

+1 +2/B1

B2

Motor

R

 

R (L1 )

 

U (T 1)

IM

S

 

S(L2 )

 

V(T2 )

T

 

T(L 3)

 

3 ~

 

 

W(T 3)

 

 

 

 

 

E

 

 

 

 

 

E

 

 

 

 

 

 

Terminal Symbol

 

 

Explanation of Terminal Function

EPS (+, -)

 

For emergency power or backup power supply

R/L1, S/L2, T/L3

 

AC line input terminals

 

U/T1, V/T2, W/T3

 

AC drive output terminals for connecting 3-phase

 

induction motor

 

 

 

 

 

 

Connections for DC Choke (optional). Please remove

+1, +2/B1jumper when installation. (It is built in DC choke for

models 22kW and above)

+2/B1, B2Connections for Brake Resistor (optional)

Earth connection, please comply with local regulations.

Revision Nov. 2008, VLE1, SW V1.03

2-7

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Delta Electronics VFD-VL manual Main Circuit Main Circuit Connection, Brak e res istor, Pti onal Non-fuse break er, Motor