- Joined
- Feb 17, 2013
- Messages
- 4,409
Weldo:
@hman Thanks for the suggestion. I didn't even know about such a thing. The data sheet says that the switch prevents you from reversing until the motor stops. How does the switch know?
I think you might have mis-read the description. All the switch does is prevent you from switching all the way between forward and reverse in one motion, so there's no danger of doing so by accident. If you're in forward, you can switch to off, but no further. You must release the toggle and let it move back just a bit before you can switch further (into reverse).
A machine I used many years ago had such a switch, and I bought one for a lathe rebuild a wile ago. So I'm familiar with their "mechanics." As you realized, the switch has NO way to get feedback from the motor. You CAN complete the switchover before the motor has stopped ... but it takes a deliberate set of actions.
@hman Thanks for the suggestion. I didn't even know about such a thing. The data sheet says that the switch prevents you from reversing until the motor stops. How does the switch know?
I think you might have mis-read the description. All the switch does is prevent you from switching all the way between forward and reverse in one motion, so there's no danger of doing so by accident. If you're in forward, you can switch to off, but no further. You must release the toggle and let it move back just a bit before you can switch further (into reverse).
A machine I used many years ago had such a switch, and I bought one for a lathe rebuild a wile ago. So I'm familiar with their "mechanics." As you realized, the switch has NO way to get feedback from the motor. You CAN complete the switchover before the motor has stopped ... but it takes a deliberate set of actions.