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Nb1 g b2 b2 b1, Db resistor, Db unit – HP 30 HP30 User Manual

Page 185

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Chapter 7 - Options

7-23

DB Resistor/Unit wiring for 15-30 HP Inverter

DB resistor terminal

Terminal description

B1, B2

Connect the DB Resistor to Inverter terminal B1,B2.

TH1, TH2

Thermal sensors provided with the DB resistor.
P1 is ON (TH1-TH2 Shorted) at normal (ambient temp) and P1 is OFF (TH1-TH2
Open) at overheated status. Connect the thermal sensor to one of the multi-function
input (P1, P2 or P3, I/O 12-14 setting: Ext Trip-B).

* For DBU, refer to 7.6.3 DB Unit.

IM

U

V

W

G

R
S
T

P2

DB Resistor

FX

RX

BX

RST

JO

P2

P3

FM

+

FM

5G

Analog freq

output

2)

(0-10V)

P1

REV Run / Stop

FWD Run / Stop

Fault reset

Jog

Max Current thru
PC : 5mA

CM

24 V

TH1

TH2

Max distance : 5m

The wire should be TWISTED

Multi-function input terminal
(I/O-12 Setting : Ext Trip-B)

P1

Short

N

N

B1

G

B2

B2

B1

DB Unit

Max distance : 5m

P