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Chapter 12 Descriptions of Parameter Settings | IED-S
1. Goal: To ride crowded passengers from certain floor in a short time. For example, a lot of
people suddenly come out after conference or movie. Note that if this happens in the lobby,
use upward peak running instead of peak running at random floor.
2. Method: When peak running at random floor is enabled, all elevators in group control
operations automatically run to the floor with crowded passengers. For upward peak running
at random floor, door opens automatically for one time when elevator arrives at that floor if it
does not run downward. For downward peak running at random floor, door opens
automatically for one time when elevator arrives at that floor if it does not run upward.
3. Conditions that trigger peak running at random floor:
(1) MI = Peak running at random floor: When any of the elevators in group control operations
stops at the floor that prepares to execute peak running, activate MI=201 (PK) for more
than one second and then deactivate it to make elevator enter MI=upward peak running at
random floor if elevator runs upward and make elevator enter MI=downward peak running
at random floor if elevator runs downward.
(2) The number of starting with full-load at certain floor exceeds setting value:
If elevator starts at certain floor with full-load, the number of full-load increases by one until
it reaches Pr.03-89 (Number of Full-load at Random Floor). On the contrary, it decreases
by one until it reaches zero. When the number of full-load reaches Pr.03-89, peak running
at random floor is enabled. If you set Pr.03-89=0, peak running at random floor is disabled.
If the number of full-load is smaller than Pr.03-89 while peak running at random floor is
enabled, time starts to count and peak running at random floor is not disabled until time
reaches Pr.03-88 (Holding Time at Random Floor). This function is determined by group
control.
To disable peak running:
Activating MI=202 (REPK) for any of the elevators in group control operations disables all peak
running.
12-03-18
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