Honeywell Sensepoint XCD RFD - Terminal Connections

Sensepoint XCD RFD Technical Manual SPXCDHMRFEN Issue 4_08-2016
19
6.2 Terminal connections
Note: Ensure that none of the wires in the terminal area cause an obstruction when
retting the Display Module. Ensure that the socket on the Display Module is fully engaged
in the Display Module Connector on the Terminal Module.
Diagram 6: Sensepoint XCD RFD Terminal module
Terminal Block
Ground/Earth
Point
Power & Signal
Display Module
Connector
Display Module
Alignment Pin
Locator
Terminal Block
for Relays
Terminal block for
Sensepoint or 705
Flammable sensor
Note: Terminal
Blocks are
plug/socket type
and may be
removed to ease
wiring.
Terminal Module Connections
Terminal
Number
Marking Connection Description
1 24V +VE Supply(12-32VDC)
Controller Connections
2 0V -VE Supply(0VDC)
3 4~20mA Current Output Signal
4 COM Common
MODBUS RTU. RS485
(Optional)
5 TxD MODBUS A(+)
6 RxD MODBUS A(-)
7 RLY1/NC Normally Closed
Programmable Relay 1
(Default A1)
8 RLY1/COM Common
9 RLY1/NO Normally Open
10 RLY2/NC Normally Closed
Programmable Relay 2
(Default A2)
11 RLY2/COM Common
12 RLY2/NO Normally Open
13 RLY3/NC Normally Closed
Programmable Relay 3
(Default Fault)
14 RLY3/COM Common
15 RLY3/NO Normally Open
16 +VE Sensitive (Sensor Brown Wire)
RFD Sensor Connection17 -VE Non-Sensitive (Sensor Blue Wire)
18 01 Signal (Sensor White Wire)
Table 1: Transmitter terminal connections
Note: The Sensepoint HT sensor and 705 HT sensor (not covered by the CSA certication)
must be earthed either at the remote junction box or at the transmitter as appropriate.
Avoid earth loops.