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Overview of installation procedures for TT-NRM
A. Mount TT-NRM assembly in enclosure selected for the application.
B. Connect power and relay contact wiring.
C. Connect RS-485 cables and set address.
D. Update the TTDM-128 network.
A. Mount DIN rail
1. Select a location for installation.
The TT-NRM may be installed in any panel or enclosure
suitable for electronic control devices.
The TT-NRM assembly is powered with line voltage and
switches relay contacts that may be connected to line volt-
age. Select an electrical panel or enclosure considering the
area classification (i.e., non-hazardous or hazardous), the
location (indoors or outdoors, exposure to moisture and/or
dust), and the chemical environment.
If ambient temperatures below freezing are expected,
install the TT-NRM unit in a heated location or use an
enclosure heater. If moisture is expected, install a drain in
the enclosure.
THERMAL MANAGEMENT SOLUTIONS
38 mm
38 mm
(1.5 in)
(1.5 in)
–
+
N
L
Power
supply
Overall width: = 157 mm + 12 mm per relay module
= 6.25 in + 0.5 in per relay module
EN-TraceTekTTNRM-IM-H57474 01/13
2. Size and install DIN rail.
Use the supplied DIN 35 rail. The rail may be shortened
if necessary. The width of the TT-NRM assembly is deter-
mined based on the number of TT-NRM-2RO relay modules
used.
12 mm
(0.5 in)
45 mm
(1.75 in)
ON
TxD
RxD
CRC
24V 0V
IO/RN
IO/ER
Address x 1
x 10
750-517 750-517 750-517
RS-485
Network
Relay
network
processor
module
connection
module
12 mm
(0.5 in)
100 mm
(4 in)
35 mm
(1.4 in)
750-600
End
termination
3 / 8
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