Rockwell Automation 1771-CFM Config. Flowmeter Installation Instructions - Manual (Page 8)

Configurable Flowmeter Module 8
Publication 1771ĆIN043B-EN-P - July 2002
The following tables and wiring diagrams
represent wiring for a flowmeter input (F0),
a gate input (G0), and an output (O0).
See the wiring-arm diagram for the terminals
used in wiring F1-F3, G1-G3, and O1-O3.
F0 wiring Terminal
signal input 12
signal common 11
For this threshold(ON/OFF) voltage Jumper
50 mV no jumper
500 mV 11 Ć 10
1.3 V 11 Ć 9
Make Connections to the
FieldWiring Arm
Connect your I/O devices to the 40-terminal
field wiring arm (cat. no. 1771-WN) shipped
with the CFM module.
Remove power
to all I/O devices before you
connect them to the wiring arm.
Failure to remove power from
your I/O devices could cause:
•
injury
•
damage to module circuitry
•
equipment damage due to
unexpected operation
!
ATTENTION
Actual wiring runs in this direction.
10689ĆI
1771ĆWN
Even Numbered
Terminals 2Ć40
Odd Numbered
Terminals 1Ć39
not used
not used
G0 RET
G1 RET
F0 (500mV)
F0 Input
F1 (500mV)
F1 Input
dc source #1 @ 12mA RET (- proximity pickup)
dc source #2 @ 12mA RET (- proximity pickup)
F2 (500mV)
F2 Input
F3 (500mV)
F3 Input
G2 RET
G3 RET
Output 0
Customer V dc #1 RET (Outputs 0 & 1 RET)
Output 2
Customer V dc #2 RET (Outputs 2 & 3 RET)
Chassis GND
+5V dc RET
G0
G1
F0 (TTL)
F0 RET
F1 (TTL)
F1 RET
+24V dc source #1 @ 12mA
+24V dc source #2 @ 12mA
F2 (TTL)
F2 RET
F3 (TTL)
F3 RET
G2
G3
Customer V dc #1 (5 to 30V)
Output 1
Customer V dc #2 (5 to 30V)
Output 3 1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
The sensor cable must be shielded. The shield:
• must extend the length ofthe cable, but be
connected only at the 1771 I/O chassis
• must extend up to the point oftermination
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.
Ifmultiple power sources are used, do not exceed the
specified isolation voltage.
2
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
4
6
8
10