INSTALLATION
SETUP/PHYSICAL INSTALLATION
I-E96-435A
2 - 5
Power Wiring
There is one terminal block (TB1) that connects to +24 VDC
and system common. Figure
shows their location on the
TM. Use 18 AWG wire for power wiring.
To connect power to the termination module in a system using
modular power supplies, follow these steps:
1. Remove the front cover.
2. Ensure the NIAI03 module is pulled out far enough to gain
access to the terminal strip.
3. Attach an 18 AWG wire from the +24 VDC bus bar on the
TMU power bus bar to the TB1 terminal on the TM 24
VDC.
4. Attach an 18 AWG wire from the I/O common bus bar on
the TMU power bus bar to the TB1 terminal on the TM marked
COM.
5. Insert the module until it locks securely into place.
6. Replace the front cover.
The NIAI03 is ready for operation if:
1. The circuit board is mounted in the termination mounting
unit.
2. All required cables are connected to the termination module.
3. All required field wires are connected to the termination
module.
4. Power is connected and applied to the termination module.
Figure 2-2. Terminal Assignments for NIAI03
CARD EDGE
CONNECTOR
TYPICAL
CONNECTION
FOR AN RTD TO
AN NIAI03 INPUT,
CHANNEL 1
CHANNEL
NUMBER
T00685A
NIAI03
TERMINAL NUMBER
P1
26
25
24
ABC
23
22
21
ABC
20
19
18
AB
C
17
16
15
AB
C
14
13
12
ABC
11
10
9
ABC
8
7
6
ABC
5
4
3
ABC
2
1
2
7
6
5
4
3
8
+24 VDC
COMMON
