Honeywell 5704 Operating Instructions Manual page 99

MAN0448_Issue 13_01-2010
005704-M-5001 A03249
CHAPTER 4 - INSTAllATION INSTRUCTIONS
Digi Series
+24V
4 - 20mA(+)
0V
1
2
3
4
+24
Sensors: 704 705
783 811
910 911
Notes: 1. Where a sensor is earthed locally, either to the Earth Stud or through the sensor
casing or mounting, to avoid earth loops the screen sheath of the cable should only
be connected at one end.
2. The above diagram shows the sensor connections for Channel 1. Channels 2, 3 and
4 connections are similar and their pin connection numbers are shown below:
Arrows Indicate Direction of
loop Current Flow
See Table for
Sensor Wiring
4-20mA(+)
lK2 Fitted
(For Current Source)
0V
Block
Wiring
Terminal
Signal
1 GND
2 NS
3 C/T
4 S
* Valid for 811 and 911. For other sensors, see sensor documentation.
Quad Relay
Interface Connections
Three Wire Control Card Current Sink, Transmitter Current
Source Connection for Digi Series (Signal Returned to 0V
Quad Relay Interface Card
Screened Cable
* 24V supply may be obtained
from either the cabinet or a
separate field supply
Sensor Connections
Digi-Cat Digi-Chem
Catalytic
Colour Signal
- GND
Blue C
White R
Brown W
Channel
1
2
3
4
Supply)
4-36
5704 Control System
05704-A-0121
+24V*
01
17
19
NS
Cabinet
0V*
Protective
Earth
Digi-Ana
ECC Analogue
Colour Signal
- -
Brown 01
White 0V/NS
Blue +24V
Transmitter Connection
01
17
18
23
24
Colour
-
Brown*
Blue*
NS
19
20
25
26