Honeywell 5701 Operating Instructions Manual page 112

MAN0443.P65 Issue 13 Aug 04
05701-M-5001 A02279
CHAPTER 4 - INSTALLATION INSTRUCTIONS
Single Channel Control Card 4 - 20mA 05701-A-0301
Fitted with 4 - 20mA Sensor Drive 05701-A-0283
1 2 3 4 5
4 - 20mA (+)
Note: 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. ie. At the sensor or at the Interface/relay Card.
Three Wire Control Card Current Source, Transmitter Current Sink Connection for
Searchline 500
(BASEEFA)
Direction of Loop
+24V
0V
Searchline 500
(Signal Returned to Regulated +23V Supply)
Relay/Field Interface Card
05701-A-0326
05701-A-0327
05701-A-0328
05701-A-0329
05701-A-0330
Arrows Indicate
Current Flow
Screened
Cable
4 - 49
5701 Control System
Cabinet
S
27
28
NS 29
01
Protective
Earth
Link Positions
LK12
LK9
LK6
LK3
LK1