BMS Doug
Posts: 3823
Joined: Thu Mar 27, 2014 2:42 pm
Location: London, UK

Actuator motor and board

Mon Mar 31, 2014 1:51 pm

We have a bunch of failed actuators at work (they were on heating valves and the temperature made the actuator casing brittle, snapping off the mounting) that I thought I might find a use for in a project.

Any suggestions as to what I could use these for? essentially they are a very slow drive time motor with positioning and end stop sensing.

The actuators are Johnsons VA-7452-1001 (datasheet)
• 24VAC power
• Proportional control
• Self-calibrating
• 0 to 10 VDC input signal (adjustable to 0-5v by Jumper position)
• Direct Acting (reversible by Jumper position)
• Adjusted to produce modulating flow characteristic (adjustable by Jumper position)
• No anti-sticking cycle (adjustable by Jumper position)

edit: this motor is pretty slow moving, I'm sure I'll come up with a task for the bunch of them though.
Building Management Systems Engineer.

Posts: 254
Joined: Sun Jan 13, 2013 2:00 pm

Re: Actuator motor and board

Thu Apr 03, 2014 5:01 pm


Most obvious is a timed water sprinkler, Automated Lawn watering system.

Ambitious - connected in place of a door handle to open when you approach, (gearing or travel limit need attention.)

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