Analog input connections – Rockwell Automation 1395 Digital Reference Adapter Board User Manual

Page 22

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Chapter 4

Installation

4-8

Analog Input Connections

Connections for velocity trim and reference inputs can be either uni- or
bi-directional operation, using the internal drive

±

10VDC power supply as

shown in Figure 4.7.

Figure 4.7

Typical Analog Input Connections

28

29

31

32

33

TB3

+10V DC P.S.

-10V DC P.S.

EXT. VELOCITY REF.

P.S. COMMON

BiĆdirectional Operation

IMPORTANT: Connect

shield to drive end only.

Other end is to be insuĆ

lated and left floating.

Reference *

2.5k Ohm

Minimum

28

29

31

32

30

TB3

+10V DC P.S.

-10V DC P.S.

P.S. COMMON

UniĆdirectional Operation

Reference*

2.5k Ohm

Minimum

R

R

Forward

Reverse

R*

Reverse Relay

* External to the Drive

*

EXT. VELOCITY REF.

+

-

EXT. VELOCITY REF.

EXT. VELOCITY REF.

+

-

IMPORTANT: Connect

to either terminal 28 or

29, Not Both

TB4

#

TB4

#

# TB10 on 125 - 300HP 230V and 250 - 600HP 460V

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