Best way to control speed of lift application motor?
Best way to control speed of lift application motor?
(OP)
We are developing a material handling system with a 15hp
lift motor. The mechanical engineers suggest using a 2 or 3 speed motor as in a standard hoist. In the past we have used a Siemens Masterdrive VFD with a large braking resistor. We are trying to develop a cost effective solution, can anyone give some reasons for using or not using a two speed motor or recommend a solution. Can a soft shift controller be combined with a 2 speed motor?
Thanks
lift motor. The mechanical engineers suggest using a 2 or 3 speed motor as in a standard hoist. In the past we have used a Siemens Masterdrive VFD with a large braking resistor. We are trying to develop a cost effective solution, can anyone give some reasons for using or not using a two speed motor or recommend a solution. Can a soft shift controller be combined with a 2 speed motor?
Thanks





RE: Best way to control speed of lift application motor?
RE: Best way to control speed of lift application motor?
RE: Best way to control speed of lift application motor?
RE: Best way to control speed of lift application motor?
REGENERATIVE variable speed drive.
I know MITSUBISHI makes one.
It puts the extra power back
onto the grid.
Enviromentally friendly that way.
RE: Best way to control speed of lift application motor?
I have install these on cranes for years and they work great.
If you need help I can supply with a complete system.
RE: Best way to control speed of lift application motor?
http://www.siemens.de
for Simovert
http://www.baldor.com
for 22H series motor drives
etc.