# Control of electric hoist motor based on variable load

Is it possible to control the power of a hoist motor based on the specific load that will be lifted? What if the load is known by using a weight sensor?

• Control the power to do what? – John D Jul 31 '17 at 17:12
• Not without a much clearer idea what you are trying to achieve. – Brian Drummond Jul 31 '17 at 17:17
• I think he wants to actively hold a weight without a brake, and use that as a dynamic "neutral point" of some other controller. If so, then yes, it's possible, but the primary risk from a controls perspective is going to be positive feedback causing the system to oscillate. – AaronD Jul 31 '17 at 17:45
• If you intend to hold a weight without a break it is possible but most probably prohibited. You can not control the situation in case of a power failure – Decapod Jul 31 '17 at 18:18
• Dr, & brothers , my idea is to let the motor of hoist to generate specific toque or power to raise known load which will be measured by the weight sensor – Nasif Jul 31 '17 at 19:03