Honeywell Sensepoint XCD RFD - Transmitter Wiring

Sensepoint XCD RFD Technical Manual SPXCDHMRFEN Issue 4_08-2016
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6.1 Transmitter Wiring
The Sensepoint XCD RFD transmitter may be wired in either Current SOURCE or Current
SINK conguration. These two options are offered to allow greater exibility in the type of
control system that it can be used with. SOURCE/SINK is selectable via the switch located
on the back side of the display module; accessible by removing the display module during
installation / commissioning (see section 9).
Caution: All electrical connections should be made in accordance with any relevant
local or national legislation, standards or codes of practice.
Caution: 250ohm load resistor (RL) is installed in the factory, In case of connection
with controller, this resistor should be removed because controller has load resistor
internally.
Note: Terminate cable screen at detector or controller, not both.
XCD Source 3 Wire 4-20mA (Source)
XCD Sink 3 Wire 4-20mA (Sink)
Controller
+VE
Signal
1
2
3
Detector
+VE
Signal
-
VE
R
L
-
VE
1
3
2
Controller
+VE
Signal
1
2
3
Detector
+VE
Signal
-
VE
R
L
-
VE
1
3
2
R
L
Controller
+VE
Signal
1
2
3
Detector
+VE
Signal
-
VE
-
VE
1
3
2
R
L
Controller
+VE
Signal
1
2
3
Detector
+VE
Signal
-
VE
-
VE
1
3
2