fan speed control

HAROLD

Member
Join Date
Apr 2007
Location
St Catharines
Posts
15
I need to control the speed of a bank of ceiling fans (< 10 A ) with an analog signal (0 - 20 mA , 0 - 10 V or 0 - 5 V )does anyone know of an inexpensive device that I can use
 
I need to control the speed of a bank of ceiling fans (< 10 A ) with an analog signal (0 - 20 mA , 0 - 10 V or 0 - 5 V )does anyone know of an inexpensive device that I can use

Crystal ball broke
MORE DATA NEEDED
is that 10 amp each or total
Do they all have to run at (near) same speed
What is desired speed range?

My first thought is a VFD IF they are 3 phase.

Dan Bentler
 
does anyone know of an inexpensive device that I can use
We all have a different idea of expensive.
Is this an industrial application?
We just put all of out evacuation fans on vfd's and the power co. pretty much payed for them.
If it's like a home ceiling fans go to home depot and get some dimmer switches.
 
Actually I might know what you want.
At a previous job we controlled vibe bowls with a Solid State Variable Relay (analog to AC). I cant remember the brand we used. I will look. I know the name started with CY....
 
Last edited:
Just remember that if you use a VFD and the motors are not inverter rated it "can" cause issues with the motor.
We had non inverter rated mators for oven blowers on VFDs and it caused pitting in the bearings due to some type of arcing. Took the inverters out and run from a motor starter and the motor failure went away.
 
Crystal ball broke
MORE DATA NEEDED
is that 10 amp each or total
Do they all have to run at (near) same speed
What is desired speed range?

My first thought is a VFD IF they are 3 phase.

Dan Bentler

there exists only one BANK of fans at < 10A for the bank
all fans are 120VAC wired in parallel
desired speed range is (stall speed plus a little) to full speed with 120V applied
 

Similar Topics

Hi, I've bought this PLC + HMI from Aliexpress, the one on the right that uses SSRs. and want to connect a 24V/0.2A DC fan to the output. My...
Replies
32
Views
6,953
Hi, I am currently working on a little project and I am wanting to control a fans speed with some PLC digital outputs / anolog output but unsure...
Replies
7
Views
3,347
Hello, I have an application where I want to modulated fan speed with VFD to maintain a predetermined temp.how should I go about this?
Replies
7
Views
3,372
I know this has nothing to do with PLCs. I just was wondering if anyone could steer me in the right direction. I got a soldering exhaust fan out...
Replies
4
Views
4,360
Well actually I'm a person and not a fan but either way. I'm an old in-my-60's PLC guy and I recently had a project which spec'ed for a...
Replies
8
Views
1,166
Back
Top Bottom