06/08/2012 - 04:00 am
VFD Trolley Drives Now Standard on EMH Hoists
Valley City, Ohio-based EMH’s Model E Single Girder Wire Rope Hoist line now includes a standard, full-featured VFD trolley drive that incorporates the following:
- EMH Monorail Standard two-speed infinitely variable control at 65/16 fpm.
- Smooth, controlled speed transitions from low to high and high to low.
- Adjustable DC injection dynamic braking to virtually eliminate brake wear and maintenance.
- Large 4-digit LED displays speeds, faults, and individual parameters.
- Designed and built for crane service; not a retrofitted general purpose drive.
- Complete, self-monitoring, fail-safe on-board diagnostics.
- Control wiring diagnostics and display.
- Brake control test diagnostics.
- Fault circuit test diagnostics.
- Rated for temperatures up to 135 degrees F.
The EMH E Hoist line includes capacities from 1 to 25 tons; EMH also manufactures and distributes a complete line of standard double girder and custom engineered wire rope hoists.