Extended speed range
Description
Operating mode:
- Allows quicker lift and lower with loads lower than nominal load
- With loads less than 20% of capacity, the hoist can lift up with twice the rated speed
- ESR is a variable-frequency drive control, where the allowed speed is calculated by the value of the load in the hook
Benefits:
- The entire power of the rolling bridge can be used all the time
- Heavy Loads - Rated Speed
- Light loads - Speed up to 200% of rated speed
- Maximized productivity - reduces the duration of a work cycle and waiting times.
- Does not require the over-dimensioning of mechanical and electrical components.
- Significant time savings if most of the loads being handled are below 20% of the nominal load
- Particularly advantageous for high lifting heights
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