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HYDROFIT™ Owner’s Information Manual
WARNING: The use and ownership of this work is defined in the legend upon the front page hereof.
Door Time Monitoring
When the car door protective device is activated after the car has stopped to answer
a hall call, the door open time is reduced from the normal setting for a hall call stop.
Other aspects of door operation continue normally. This feature can be enabled at
all landings, or at all landings except the lobby and cafeteria positions.
Nudging Operation
If the doors are prevented from closing for a fixed time period and there is further
demand on the system, the door protective device is rendered inoperable, the in-car
buzzer sounds, and the doors close at a reduced speed. Normal operation resumes
at the next landing.
Group: Operation Features
The group operates in one of two independent modes. Whenever hall calls are
registered, the operating mode is “relative system response dispatching.” When no
hall calls are registered, the operating mode is “zoned car parking.” Optimized
response to hall calls is achieved through use of RSR Plus® time computed for each
hall call registered. The computation of each car’s relative system response time to
a call is based on, but not limited to, such relevant factors as distance, service to
previously assigned car and hall calls, direction, door and car motion status, and
coincidence of car and hall calls. To even waiting times and eliminate particularly
long waits while maintaining optimal system performance, the weighting of the
factors vary with system traffic. The car with the least relative system response is
assigned the call. Relative system response computations for each hall call are
repeated several times a second and the hall call assignment changed if a more
suitable car is found. The RSR Plus dispatching software continuously evaluates
the efficiency of its dispatching and varies the weighting of the bonuses and
penalties to optimize the dispatching efficiency.
Zoned Car Parking
The section of a building served by a group of elevators is divided into a number of
fixed zones equal to the number of cars in the group. The assignment of landings to
zones is selectable. Each zone comprises a section of the hoistway consisting of
one or more consecutive floors. Each zone normally is assigned to one car. This
feature is used to park cars with doors closed in the absence of call demand.
Expanded Lobby Zone
Several landings above lobby are made part of the lobby zone. One lobby zone car
always parks at the lobby.
Excluded Zone Operation
This feature prevents cars from parking in certain zones, and thus freeing these cars
for service elsewhere. The excluded floors (a zone) will not appear as demand to an
unassigned car unless a hall call exists in that zone.
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