All SLC4-20 controls are generally capable of groups. You will need no additional control computer or "group selector".

SLC4-20 lift groups maximize the capacity

Each SLC4-20 itself decides whether or not it uses a group call. This decision is made on the basis of the continuously measured travel times from each floor to each floor and the door lost time per floor. No adjustments are needed, which makes the operation easy and avoids errors.

Driving time-oriented and self-learning

Use changes of the group lifts are automatically detected, because it finds the current drive and stop loss times live. Different lift speeds, door transit times, door open times etc are always respected. Different levels of spacing due to different floors of the group are also automatically considered. Different access doors sizes or door sides of the lifts and also temporarily blocked accesses are always included in the calculation.