Section 3: Installation And Wiring - Emerson Bettis 2000 Series User Manual

Section 3: Installation and Wiring

July 2019
Section 3: Installation and Wiring
Refer to the wiring diagram supplied with the actuator for wiring details and options
supplied with the system. Figure 2 below is generic and provided primarily for wiring
4-20mA analog input and output signals. Refer to Figure 2 for proper wiring of analog I/O
and associated polarities relative to external equipment and power supplies.
Use the following rules when wiring analog I/O signals.
1.
2.
3.
4.
5.
6.
7.
8.
3
Route analog I/O cables into actuator enclosure through separate conduit entries
from power wiring.
Always use twisted-pair instrumentation cable for wiring 4-20mA analog input and
output signals.
Use shielded cable when analog signals are being installed in or routed through
high noise areas.
If shielded cable is used, earth ground the shield by connecting only one end of the
shield to earth.
Instruments or control equipment must source current to the analog input of the
Digital Futronic.
Remote current source to analog input must have own power source, or an
external supply is required.
Do not connect an external power source to the 4-20mA analog output of the
Digital Futronic module.
The Digital Futronic module contains its own internal 24VDC power supply for the
4-20mA output and sources current to external instruments or control equipment.
Installation, Operation and Maintenance Manual
MAN-02-04-55-0735-EN Rev. 0
Installation and Wiring