| ??? 09/19/05 20:03 Read: times |
#101236 - Listen to Erik & Andy Responding to: ???'s previous message |
Most valves can tolerate being jammed shut, but can get stuck if jammed open, unless you have a valve specifically designed to be forced to its end of travel in both directions. At some point the motor will fail to close the valve but because the motor has stalled your scheme will still report it as closed. I would use a microswith or a revolution counter to verify valve position but still check for a stalled motor.
Hal |
| Topic | Author | Date |
| Sensing Stop Point of a DC Motor! | 01/01/70 00:00 | |
| I doubt that, the time it takes a motor | 01/01/70 00:00 | |
| More! | 01/01/70 00:00 | |
| You can sense the stops by measuring the | 01/01/70 00:00 | |
| I to V? But | 01/01/70 00:00 | |
| SHUNT | 01/01/70 00:00 | |
| You missed the important point! | 01/01/70 00:00 | |
| Listen to Erik & Andy | 01/01/70 00:00 | |
| Another Approach! | 01/01/70 00:00 | |
| Not reliable | 01/01/70 00:00 | |
| you don't get it, do you | 01/01/70 00:00 | |
| Stop sensing for DC motor | 01/01/70 00:00 | |
| Please Say Sensing stop ....Please | 01/01/70 00:00 | |
| Sensing Stop -:) | 01/01/70 00:00 | |
| no........ | 01/01/70 00:00 | |
| That is not the big risk | 01/01/70 00:00 | |
| I've seen it all before! | 01/01/70 00:00 | |
| Thanks Russel And Erik | 01/01/70 00:00 | |
| CYA | 01/01/70 00:00 | |
| Why did the original driver fail? | 01/01/70 00:00 | |
It Works proper but.. | 01/01/70 00:00 |