electgut21
Member
HI, I like to know if anyone knows of a way to stop a motor quickly by using a switch in the control circuit. Its 3 phase motor and the heaters in the starter are not fast enough.
HI, I like to know if anyone knows of a way to stop a motor quickly by using a switch in the control circuit. Its 3 phase motor and the heaters in the starter are not fast enough.
HI, I like to know if anyone knows of a way to stop a motor quickly by using a switch in the control circuit. Its 3 phase motor and the heaters in the starter are not fast enough.
Your Overload "heaters" are only there to protect the motor from severe thermal damage. If you need mechanical protection as well, it's best to do that with a Load Monitor relay. They look at actual shaft power (calculated) and can be set to trip much earlier than an Overload Relay would, plus as mentioned, they can be programmed to ignore the starting current. The one I like best is from a company called Emotron. They aren't cheap, but they are very good.
http://www.usa-emotron.com/shaftpowermonitor.aspx
I should explain . Lets say a motor under normal running conditions pulls 5 amps and when a problem comes up it pulls more than the 5 amps. I would like to stop it as soon Ias I can , lets say 6 or seven what ever keeps the motor from doing dammage. The heaters take to long , i need quick action. It is like a conveyor system.