Rice-lake 920i Dual Channel A/D Card User Manual download pdf

December 2010 69090

920i

Programmable HMI Indicator/Controller

Dual-Channel A/D Card Installation Instructions

PN 68533

Use the following procedure to install dual-channel

A/D cards in

920i indicators:

1. Disconnect indicator from power source.

W arning

Disconnect power before removing

indicator backplate.

2. Place indicator face-down on an antistatic

work mat. Remove screws that hold the

backplate to the enclosure body.

Use a wrist strap to ground yourself and

protect components fr

om electrostatic

discharge (ESD) when working inside the

indicator enclosure.

3. Carefully align the large option card

connector with connector J5 or J6 on the CPU

board. Press down to seat the option card in

the CPU board connector.

4. Use the screws and lockwashers provided in

the op

tion kit to secure the other end of the

option card to the threaded standoffs on the

CPU board (see Figure 1).

Figure 1. Installing Option Card Onto CPU Board

5. To attach cable from a load cell or junction

box to the A/D card, route the cable through

the cord grip and wrap the shield wire around

the ground stud on the enclosure. Secure

shield wire to the ground stud with the kep nut

included in the parts kit.

See the

920i Installation Manual, PN 67887, for

more information about grounding cables.

6. Next, remove connector J1 from the A/D

rd. The connector plugs into a header on the

card (see Figure 2). Wire the load cell cable

from the load cell or junction box to

connec

tor J1 as shown in Table 1.

CHANNEL 2

CHANNEL 1

SIG+

SIG–

SEN+

SEN–

EXC+

EXC–

JP3 JP4

JP2 JP1

CH 2

CH 1

Figure 2. Dual-Channel A/D Card

7. Remove connector J2 from the A/D card and

wire the second load cell cable from the load

cell or junction box to connector J2 as shown

in Table 1.

Table 1. A/D Card Pin Assignments

J1/J2

Connector Pin Function

1 +SIG

2 –SIG

3 +SENSE

4 –SENSE

5 +EXC

6 –EXC

• For 6-wire load cell connections to connector J1, remove

jum

pers JP1 and JP2.

• For 6-wire load cell connections to connector J2, remove

jum

pers JP3 and JP4.

To be the best by every measure

1 2

Summary of Contents

Page 1 - W arning

December 2010 69090920i® Programmable HMI Indicator/ControllerDual-Channel A/D Card Installation InstructionsPN 68533Use the following procedure to in

Page 2 - Specifications

2 920i Dual Channel A/D Card Installation Instructions8. If using 6-wire load cell cable (with sense wires), remove jumpers JP1 and JP2 before reinsta

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Rice-lake 920i Dual Channel A/D Card User Manual

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