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Installation, Operation and Maintenance Manual
MAN-02-10-93-0700-EN Rev. 0
Section 4: Wiring
All user wiring terminations are made inside the Electrical Enclosure shown in Figure 3 on
Page 2. Refer to wiring diagram located at the back of this manual for wiring connections.
High voltage power connections are made to the disconnect/circuit breaker located inside
the electrical enclosure. All low voltage connections, including network wiring, are made
to the Termination Board Module (TBM) located inside the electrical enclosure. Use conduit
and seals in accordance with National Electric Code (NEC) and local codes for all wiring
entering the electrical enclosure.
4.1
Power Wiring
Connect power voltage leads to the circuit breaker located in the main electrical enclosure.
Power wires must enter the electrical enclosure at the conduit entry on the lower right side
of the enclosure to prevent water from entering. The controller provides automatic phase
correction in case three-phase power is connected in the wrong phase rotation.
4.2
Network Wiring
If a single bus network connection, such as Foundation Fieldbus, is being made, connect to
Network Port A at TBM terminals 24 (-) and 25 (+). If the cable is shielded, connect shield to TBM
terminal 23. If redundant or repeater network connections such as Bettis E>Net are being made,
connect the second network to Network Port B at TBM terminals 23 (+) and 24 (-). Connect cable
shield of Port B to TBM terminal 25. Cable shields are isolated from earth in the actuator. Connect
shields to only one earth ground point in the network, normally the host location.
4.3
Monitor Relay Wiring
The Monitor Relay is used for hard-wiring an indication of availability of the actuator for
remote control. When the selector switch is placed in the Remote mode and if there are no
alarms present that prevent operation, the Monitor Relay is energized. If an alarm occurs
or the selector switch is moved from the Remote position, the relay is de-energized. The
Monitor Relay is a Form C relay with both normally open (N.O.) and normally closed (N.C.)
contacts. Wire to either TBM terminals 31 and 32 if N.O. contacts are desired. Wire to TBM
terminals 32 and 33 if N.C. contacts are desired. The relay is shown on the wiring diagram
in the de-energized state, meaning that the actuator is not available for remote control.
4.4
Local ESD Wiring (Emergency Shutdown)
Remove jumper between TBM terminals 27 and 28. Connect Normally Closed (N.C.) dry contacts to
terminals 27 and 28. When the contacts open, ESD is activated, causing the actuator to go to Home
Port. The actuator will remain at the Home Port until the ESD contacts are closed and a new com-
mand is received from either Local or Remote control. The ESD circuit is a closed loop failsafe circuit.
It the circuit is opened for any reason, broken wire, bad contact, 24VDC power supply failure, etc.,
the ESD function is activated. The closed loop circuit is powered by 24VDC from the actuator.
4.5
Optional Remote Display Module (RDM) Wiring
Connect twisted pair RS485 cable from the RDM to TBM terminals 18 (-) and 19 (+).
If the RDM is being powered from the actuator 12VDC supply, wire the power wires from
the RDM to TBM terminals 16 (-) and 17 (+). The RDM is polarity protected, preventing
damage, but will not operate if polarity is reversed.
Wiring
Section 4: Wiring
May 2019
7
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