Search found 5 matches
- Sat Jan 12, 2002 10:38 am
- Forum: General Discussion
- Topic: Actuator control signal
- Replies: 6
- Views: 5241
Re: Actuator control signal
Sorry about the lack of info, I'm a first time poster! When the control job was done the contractor was given the specs for the wrong job & simply wired the two in parallel. I can remember him saying "What's the point of having a 1/3 & 2/3 valve and wiring them in parallel. You could do...
- Fri Jan 11, 2002 4:26 pm
- Forum: General Discussion
- Topic: Actuator control signal
- Replies: 6
- Views: 5241
Re: Actuator control signal
First, I made a mistake with the control signal, it is 0 to 10 Vdc not 2 to 10 Vdc. I edited the original post. I am making hot water for heating purposes. The valve actuator has an internal controller than strokes the valve to the position indicated by the control signal. The microcontroller is loo...
- Wed Jan 09, 2002 4:36 pm
- Forum: General Discussion
- Topic: Actuator control signal
- Replies: 6
- Views: 5241
Re: Actuator control signal
I Left out some details. They are steam valves, Valve #1 is 1/3 and valve #2 is 2/3 of capacity. In order to get 100 of capacity these valves must open and close in sequence. 25% call for steam = valve #1 open about 80%, valve#2 is closed. If the load changes to 50% call for steam then valve #1 open...
- Tue Jan 08, 2002 6:10 pm
- Forum: General Discussion
- Topic: Cell phone antenna
- Replies: 1
- Views: 3157
Re: Cell phone antenna
I tried it on a nokia 5160 and got an extra bar on the signal meter.
- Tue Jan 08, 2002 6:03 pm
- Forum: General Discussion
- Topic: Actuator control signal
- Replies: 6
- Views: 5241
Actuator control signal
I am trying to control 2 valve actuators with one control signal (0 to 10 Vdc). Actuator #1 must be driven first to full open before Actuator #2 can start to open. On closing,it is Actuator #2 then #1. I thought I could do it by taking the control signal and making 2 signals. Input of 0 to 2.5 Vdc =...