Drive In Hoist Application
Posted 30 November 2007 - 10:08 AM
A 15kw motor driven hoist is connected through a VFD. The application being tough we had connected VFD of capacity 18.5kw and started using the hoist. It takes a load of 3 ton and beyond it does not hold the load. What is the reason for that. Some one says that it has to be used with Dynamic Breaking Unit and DB Resistor. Please explain.
Posted 30 November 2007 - 12:19 PM
Posted 04 December 2007 - 08:47 AM
Posted 04 December 2007 - 09:01 AM
Can you give us more detail on the problem that you are having.
Do you mean that it will not hold the load stationary, or that it will not lift the load, or it will not lower the load in a controlled fashion?
There are a number of scenarios and if you can give us more detail, it will be easier to give you a meaningful answer.
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