INSTALLATION
SETUP/PHYSICAL INSTALLATION
2 - 4
I-E96-419A
®
Cabling Connections
The TTA termination unit has connections to the IMAMM03
Analog Master Module and the IMASM02 Thermocouple/Milli-
volt Input Slave. Figure
shows the cable connections for
normal operation with interconnected termination units. Fig-
ure
shows the cabling configuration required for
calibration.
Cable Installation
The NKTU01 Termination Unit Cable (KTU) connects the TTA
termination unit to the IMAMM03 and IMASM02 modules. The
KTU cable is a round cable (61 meters/200 feet maximum).
The termination units are interconnected with a cold junction
compensation
1
(KAI) cable. The cables are shielded.
1. In a TTA configuration, the KAI cold junction compensation cable is used for termination unit interconnection, not cold junct ion compensation.
Table 2-1. NTTA01 Dipshunt Settings
Application/Signal Type
Dipshunt XU1 - XU8 Configuration
1 - 5 VDC differential input
Externally powered 4 - 20 mA
System powered 4 - 20 mA
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
T00608A
Figure 2-2. NTTA01 Termination Unit Internal Input Circuit
P3
P1
–
+
–
+
2 K
Ω
75 K
Ω
75 K
Ω
215
Ω
250
Ω
150
Ω
+24 VDC
NKTU01
NTTA01
FIELD
WIRING
IMASM02
(REPRESENTATIVE CIRCUIT)
–
+
TERMINAL
BLOCKS
TB1-TB2
FIELD
DEVICE
T00609A
XU1-
XU8
8
9
16
10 11 12 13 14 15
7 6 5 4 3 2 1
