beautypg.com

Make connections to the new wiring arm – Rockwell Automation 1771-CFM,D17716.5.99 CONFIGURABLE FLOWMET User Manual

Page 70

background image

Replace Your QRC Module

C–6

Publication 1771Ć6.5.99 - December 1995

Connect your I/O devices to the 40-terminal field wiring arm
(cat. no. 1771-WN) shipped with the CFM module. Use the wiring
example on page C–7 for additional assistance on connecting
your devices.

F0 RET

F2 RET

Customer V DC #1 (5 to 40V)
Output 1

10689ĆI

F0 Input

F2 Input

Output 0

Customer V DC #1 RET (Outputs 0 &1 RET)

Even Numbered Terminals 2Ć40

Odd Numbered Terminals 1Ć39

NEW wiring arm (1771ĆWN)

OLD wiring arm (1771ĆWG)

1
2
3
4
5
6
7
8
9

10
11
12
13
14
15
16
17
18
19
20
21

18322

2
4
6
8

10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40

1
3
5
7
9

11
13
15
17
19
21
23
25
27
29
31
33
35
37
39

Overspeed outputs turned on within

1ms of frequency calculation.

(+) Magnetic pickĆup and shield Channel A
(-) Magnetic pickĆup

(+) Magnetic pickĆup and shield Channel B
(-) Magnetic pickĆup
Overspeed solid state relay Channel A

Overspeed solid state relay Channel B

Solid state relay common

actual wiring runs in this direction

The sensor cable must be shielded. The shield:

must extend the length of the cable, but be connected only

at the 1771 I/O chassis

must extend up to the point of termination

Important: The shield should extend to the termination point,

exposing just enough cable to adequately terminate the

inner conductors. Use heat shrink or another suitable

insulation where the wire exits the cable jacket.

Make Connections to the

New Wiring Arm