Accessory List

MFC-420
F-27382-1 © Copyright 2006 TAC. All Rights Reserved. 127
Control Module Card
Model Chart
Specifications
This Control Module Card is designed as a plug-in
module for the MF-63123 Floating Valve Actuator.
The MFC-420 card allows the actuator to accept
proportional mAdc signals.
Features:
• Acceptance of all commonly used proportional mAdc input
signals.
• Factory set for 4 to 20 mAdc applications.
• Switch selectable control input signal extend point and
span for quick, accurate field setup.
• Control module plugs into MF-63123 actuator for quick,
easy installation.
• Field selectable 100 Ω or 250 Ω impedance.
Model No.
Power Input
Actuator Part Number
Voltage
(+20%/-15%)
Hz Amps Watts
MFC-420 24 (Class 2 Power Supply)
50 0.085 1.2
MF-63123
MF-63123-500
60 0.080 1.1
Inputs
Control signal
Factory setting: 4 to 20 mAdc field configurable reverse or direct acting.
Maximum input signal: 25 mAdc to maintain specified performance.
Operating span: 4 to 16 mAdc adjustable by DIP switch.
Start point: 2 to 16 mAdc adjustable by DIP switch.
Hysteresis: factory setting, 2.1% of span (16 mAdc control signal input span). Hysteresis is switch
selectable using positions 9 and 10 of the 10 position DIP switch.
Impedance: Field selectable to either 100 Ω to 250 Ω (circuit performance is not affected by changing
configuration).
Power requirements Refer to Model Chart.
Connections
Control module to actuator: Uses the pin connections on the actuator circuit board to interface with
control module.
Field wiring for control signal: Uses the screw terminals on the circuit board and accepts 14 to 20
gage wire.
Outputs
Electrical Control module plugs into MF-63123 Actuator.
Timing Refer to MF-63123 Actuator General Instructions, F-24732.”
Environment
Ambient temperature limits
Shipping and storage: -40 to 160°F (-40 to 71°C).
Operating: 0 to 140°F (-17.78 to 60°C).
Humidity 5 to 95% RH, non-condensing.
Locations NEMA Type 1 (when mounted in MF-63123).
Dimensions 1-7/8 H x 4-9/16 W x 4/5 D in. (47.6 x 115.9 x 20.6 mm).
General Instructions Refer to F-25125.
FC
-
420