Rockwell Automation 61C542 Voltage Input module User Manual

Page 15

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3Ć3

Transmitter 0

Transmitter 1

Transmitter 15

AutoMax

or AutoMate

Multibus Rack

Voltage Input

Module

Cable and Terminal

Board Assembly

(M/N 61C547 or

M/N 61C548)

2 Wires + Shield

Field Wiring (Belden 9501)

Chassis Common

for Cable Shields

12 AWG

Green Wire

Figure 3.2 Ć Voltage Input Module Connections

Step 3.

Fasten the wires from the transmitters to the screwĆtype

connectors on the terminal board assemblies. Use

shielded twistedĆpair cable, such as Belden 9501 or

equivalent. Maximum field wiring length is dependent

upon the transmitters. Typical transmitter wiring

connections are shown in figure 3.3. Refer to Appendix C

for a listing of the terminal board connections. See

Appendix G for a listing of module faceplate connections.
Be sure that all of the transmitter field wire connections are

tight.
Connect the shields of the twistedĆpair wires to the

screwĆtype connectors on the terminal boards that are

labeled S". All S" terminals are connected to the metal

header labelled SHIELD. A lugged 12 AWG green wire

connected from the metal header to a chassis ground will

shield all of the cables including the cable assembly

attached to the module faceplate. See figure 3.2.
The shields must be connected at one end only. Do not

connect the shields to the transmitters. Cut the drain wire

and remove the foil shielding at the transmitter end.

Insulate the shield conductors at the transmitter end with

heatĆshrink tubing or electrical tape.

Step 4.

Take the Voltage Input module out of its shipping

container. Take it out of its antiĆstatic bag. Be careful not to

touch the connectors on the back of the module.

Step 5.

Insert the module into the desired slot in the rack. Use a

screwdriver to secure the module into the slot.

Step 6.

Attach the cable between the terminal board assembly and

the module. Be sure that the DĆshell connectors are oriented

properly. Use a screwdriver to secure the DĆshell connectors

to the terminal board assembly and the module.

Step 7.

Turn on power to the system.

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