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P/N: 192047082 (REV AD) 627NH
March 2022
VARIABLE SPEED ELECTRIC CHAIN HOIST WITH
OPTION
SPEED CONTROL METHODS
The IMPULSE•G+ Mini provides 1-step, 2-step or 3-step Multi-Step control methods. For each input that is energized, the drive begins to
operate at the corresponding frequency. If 1-, 2- or 3-step is desired, then the frequency reference for the fi rst, second or third step will be
set at the maximum desired speed of operation.
In addition to discrete speed control, true infi nitely variable speed control can be confi gured. The IMPULSE•G+ Mini has two ways in which
infi nitely variable control can be confi gured; 2-Step Infi nitely Variable and 3-Step Infi nitely Variable control. Sample timing diagrams for both
methods are given.
NOTE:
Above fi gures shown with stopping method set for immediate stop (as in hoist applications), the frequency output is immediately set
to zero and the hoist brake will immediately close when the run command is removed. With the stopping method set for ramp to stop (as in
trolley applications), the trolley speed will ramp down to minimum frequency before the trolley brake (if provided) closes.
NOTE:
Above fi gures shown with stopping method set for immediate stop (as in hoist applications), the frequency output is immediately set
to zero and the hoist brake will immediately close when the run command is removed. With the stopping method set for ramp to stop (as in
trolley applications), the trolley speed will ramp down to minimum frequency before the trolley brake (if provided) closes.
