3�2 Relays - Honeywell XNX Quick Start Manual

Number of Network
Figure 23. Allowable Cable Lengths for 1 mm (#18 AWG) Shielded Twisted Pair
3�2 Relays
The relay option (XNX-Relay) provides 3 form "C" SPCO contacts for alarm and fault
indication. TB4 is provided as a connection to a user installed momentary switch
to silence alarms remotely.
Note:
Relays are not available with the Modbus
Wiring for the relays is through an available cable/conduit entry to a pluggable terminal
block. See Figure 24 for the terminal block legend.
Note:
A second, black-handled screwdriver is included for use on terminal blocks 2
and 4. This tool is smaller than the magnetic wand and is designed to fit into
the terminal connections on TB4.
TB4
Remote
Reset SW
Relay Ratings
3-1
3-2
3-3
3-4
3-5
3-6
3-7
3-8
3-9
TB-3 RELAY
Warning: Power
externally supplied.
Disconnect at source
prior to servicing.
Figure 24. XNX Relay Option Board Terminal Blocks
XNX Universal Transmitter Quick Start Guide
Cable Capacitance – pf/ft (pf/m)
Cable Length – feet (meters)
20 pf/ft
Devices (65 pf/m)
9,000 ft
1
(2,769 m)
8,000 ft
5
(2,462 m)
7,000 ft
10
(2,154 m)
6,000 ft
15
(1,846 m)
250VAC 5A
24VDC 5A
NC
C
NO
NC
C
NO
NC
C
NO
supplied, disconnect at source
30 pf/ft
(95 pf/m)
6,500 ft
(2,000 m)
5,900 ft
(1,815 m)
5,200 ft
(1,600 m)
4,600 ft
(1,415 m)
option.
®
TB3
TB4
TB3 Relay Connections
Warning: Power externally
prior to servicing
Relay Contact Ratings:
250 VAC 5 amps
24 VDC 5 amps
50 pf/ft 70 pf/ft
(160 pf/m) (225 pf/m)
4,200 ft 3,200 ft
(1,292 m) (985 m)
3,700 ft 2,900 ft
(1,138 m) (892 m)
3,300 ft 2,500 ft
(1,015 m) 769 m)
2,900 ft 2,300 ft
(892 m) (708 m)
1
2
3
4
5
6
7
8
9
1
2
Relay
TB3
NC
C
NO
NC
C
NO
NC
C
NO
TB4
1
2
33