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Transmitter power and I/O wiring
August 2019
3. Match the wires color for color. For wiring at the transmitter or remote core
4. Tighten the screws to hold the wires in place.
5. Ensure integrity of gaskets, then tightly close and seal the junction box cover and all
6. Refer to the transmitter installation manual for signal and power wiring
3.3.2
Connect the 9-wire cable on a remote ECP
Procedure
1. Insert the stripped ends of the individual wires into the terminal blocks. Ensure that
2. Match the wires color for color.
3. Tighten the screws to hold the wires in place.
4. Ensure integrity of gaskets, then tightly close and seal all housing covers.
3.3.3
Wire the MVD Direct Connect I.S. barrier
Procedure
Connect the core processor to the barrier:
a) Connect the RS-485 wires from the core processor to the I.S. RS-485 terminals at
b) Connect the power supply wires from the core processor to the I.S. VDC terminals
c) Connect the RS-485 wires to the non-I.S. RS-485 terminals at the barrier (terminals
d) Connect the power supply wires to the non-I.S. VDC terminals at the barrier
16
processor, refer to the transmitter documentation.
housing covers.
instructions.
no bare wires remain exposed.
the barrier (terminals 43 and 44), matching A and B. See the following table and
figure.
at the barrier (terminals 42 and 41), matching positive and negative (+ and –). Do
not terminate the shields at the barrier. See the following table and figure.
Function
RS-485 A
RS-485 B
VDC +
VDC –
13 and 14). These wires will be used in the next step to connect the barrier to the
remote host. Do not terminate the shields at the barrier.
(terminals 11 and 12). These wires will be used in the next step to connect the
barrier to the power supply.
Core processor terminals
3
4
1
2
Installation Manual
MMI- 20032352
Barrier I.S. terminals
43
44
42
41
Micro Motion HPC010P
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