Honeywell 5704 Operating Instructions Manual page 91

MAN0448_Issue 13_01-2010
005704-M-5001 A03249
CHAPTER 4 - INSTAllATION INSTRUCTIONS
Apex Transmitter
+24V
4 - 20mA(-)
0V
SK4
(Comms
and
Power)
Notes: 1. The Apex Transmitter should be earthed locally. The transmitter is earthed through
the Earth Stud, to avoid earth loops the screen sheath of the cable should only be
connected at the transmitter.
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
1
2
3
4
5
6
7
* 24V supply may be obtained
Apex
Quad Relay
Interface Connections
Three Wire Control Card Current Sink, Transmitter Current
Source Connection for Apex (Signal Returned to 0V Supply)
Quad Relay Interface Card
05704-A-0121
Screened
Cable
Apex link
Settings:
J4
J5
from either the cabinet or a
separate field supply
Channel
1
2
3
4
4-28
5704 Control System
+24V*
01
17
NS
19
Cabinet
0V*
Protective
Earth
Transmitter Connection
01
17
18
23
24
NS
19
20
25
26