Grounding the controller – Rockwell Automation 1766-Lxxxx MicroLogix 1400 Programmable Controllers User Manual User Manual

Page 45

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Rockwell Automation Publication 1766-UM001H-EN-P - May 2014

31

Wire Your Controller Chapter 3

Grounding the Controller

In solid-state control systems, grounding and wire routing helps limit the effects
of noise due to electromagnetic interference (EMI). Run the ground connection
from the ground screw of the controller to the ground bus prior to connecting
any devices. Use AWG #14 wire. For AC-powered controllers, this connection
must be made for safety purposes.

Bulletin 100C, (C09 - C97)

24…48V AC

100-FSC48

(1)

RC

110…280V AC

100-FSC280

(1)

380…480V AC

100-FSC480

(1)

12…55V AC, 12…77V DC

100-FSV55

(1)

MOV

56…136V AC, 78…180V DC

100-FSV136

(1)

137…277V AC, 181…250V DC

100-FSV277

(1)

278…575V AC

100-FSV575

(1)

12…250V DC

100-FSD250

(1)

Diode

Bulletin 509 Motor Starter Size 0 - 5

12…120V AC

599-K04

MOV

240…264V AC

599-KA04

Bulletin 509 Motor Starter Size 6

12…120V AC

199-FSMA1

(2)

RC

12…120V AC

199-GSMA1

(3)

MOV

Bulletin 700 R/RM Relay

AC coil

Not Required

24…48V DC

199-FSMA9

MOV

50…120V DC

199-FSMA10

130…250V DC

199-FSMA11

Bulletin 700 Type N, P, PK or PH Relay

6…150V AC/DC

700-N24

RC

24…48V AC/DC

199-FSMA9

MOV

50…120V AC/DC

199-FSMA10

130…250V AC/DC

199-FSMA11

6…300V DC

199-FSMZ-1

Diode

Miscellaneous electromagnetic devices
limted to 35 sealed VA

6…150V AC/DC

700-N24

RC

(1)

Catalog numbers for screwless terminals include the string ’CR’ after ’100-’.
For example: Cat. No. 100-FSC48 becomes Cat. No. 100-CRFSC48; Cat. No. 100-FSV55 becomes 100-CRFSV55; and so on.

(2)

For use on the interposing relay.

(3)

For use on the contactor or starter.

(4)

RC Type not to be used with Triac outputs.
Varistor is not recommended for use on the relay outputs.

Recommended Surge Suppressors

Device

Coil Voltage

Suppressor Catalog Number

Type

(4)

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