Connecting Sensors To Transmitter; Communication To Controller - Honeywell 301 Serie Mode D'emploi

Connecting sensors to transmitter

Connect the sensor to the transmitter as shown in the diagram below. The maximum distance between sensor
and power supply is 200 ft. (60 m) for refrigerant (S301-IRF) and 500 ft. (160 m) for toxic and combustible
gases (S301-D2). Color coding (black, red, green, white) must be respected.
The first four sensors can be connected directly to the 301EM. Additional sensors must have external power
supplies (T300VA, 120/24Vac-300VA Transformer) for every group of 4 sensors and communication must be
in daisy-chain connection
24 IN
V+ V-
A
sensor #1
sensor #2
POWER:
Maximum 4 power
connections direct to unit.
Additional power sources
required for every group of 4
sensors.
COMMUNICATION:
Communication must be
connected in daisy chain
configuration.
Use 2-18 AWG wire gauge for toxic and explosives sensor power wiring. Use 14 AWG wire gauge for re-
Note:
frigerant sensor power wiring.

Communication to Controller

Terminal J10 is for communication connections from the 301EM to the 301C Controller. The cables must be
grounded using the shield terminal. The network can be up to 2000 ft. (609 m) per channel. This diagram illus-
trates network communication wiring on terminal J10; wires come in from a previous device and go out to the
next device.
82
+VDC RED
B
A J17
GND
BLACK WHITE GREEN
sensor #4
sensor #3
External
Power
Supply
HPTV5DC8,
Input: 115 VAC 1A,
Output: 4.0A@6 and
12VDC, 2.5A@ 24VDC
J16
J10
Contact
SHIELD A B A B
input
Previous
Next
A
B
(white)
(green)
Power Comm.
sensor #5
V- (black)
V+ (red)
sensor #6
sensor #7
sensor #8
To next
sensors
COMMUNICATION
Communication Wire Gauge:
2-24 AWG (Belden 9841)
Twisted and shielded cable
2000 feet (600 m) per channel
T-tap: 65 feet (20 m) / T-tap
130 feet (40 m) total