Bailey Infi 90 NTTA01, Инструкция

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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
2-4 shows the cable connections for
normal operation with interconnected termination units. Fig-
ure
2-5 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