Brochure

Tunstall Corporation
118 Exchange Street • Chicopee, MA 01013
© July 2014
We reserve the right to alter designs, specifications and information without notice.
Phone [phone] · Fax [phone]
www.tunstall-inc.com • www.maconcontrols.com
Bulletin-MVA2-10V-0714
Electric Operators
Motorized Actuator 2-10 Volt
MVA 2-10V
3
Factory Setting: All the DIP switches in OFF position.
DIP switches 1-2-3
The DIP switches 1-2-3 are used for setting the control signal range.
DIP switch 4
The direction of operation of the actuator is set with DIP switch 4:
DIP switch 4 in OFF position: DA (Direct Acting)
DIP switch 4 in ON position: RA (Reverse Acting)
DIP switch 5
This switch can set the actuator so that the characteristic of the combination of
valve with actuator corresponds to a linear or equal-percentage characteristic.
DIP switch 5 in OFF position: LIN
Use this setting if the valve has a linear or equal-percentage characteristic.
DIP switch 5 in ON position: Eq%
Use this setting with an open/close or a high-speed valve.
DIP switch 6
The voltage (VDC) or current (mA) is set with DIP switch 6.
DIP switch 6 in OFF position: VDC
DIP switch 6 in ON position: mA
Setting the stroke
The stroke can be set using a jumper.
Factory Setting: 4.3mm