YASKAWA L1000A - S5: Short Floor Operation

5.11 S: Elevator Parameters
YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual 267
Parameter Details
5
◆ S5: Short Floor Operation
■ Short Floor Function
Short Floor automatically adjusts the speed in order to reduce the leveling time if leveling speed was activated before the
selected speed was reached. Short Floor is enabled setting S5-01 = 1. The drive calculates the distance to decelerate from
rated speed to the leveling speed, then controls the stop so that the stopping time is shortened. In Figure 5.49 below, area
S indicates the distance for a stop from nominal speed.
Figure 5.49
Figure 5.49 Speed During Normal Operation
<1> The drive will recognize the speed reference that is lower than the Leveling Speed Detection Level (d1-28) as the leveling speed if the
speed priority is set for multi-step speed reference (d1-18
= 0 or 3).
Advance Short Floor
Advanced Short Floor minimizes the operation time to arrive at a designated floor. It uses the leveling speed once the
leveling speed command is entered via one of the multi-function inputs (H1- = 53). Advance Short Floor calculates
optimal speed based on the Short Floor Minimum Constant Speed Time (S5-03) and the currently selected deceleration
rate.
Table 5.14 explains the Short Floor and Advance Short Floor functions.
Table 5.14 Short Floor Operation Example
Leveling Speed
Input Timing
Short Floor Advanced Short Floor
Constant speed
operation at
rated speed
(normal stop
sequence)
S
Speed
d1-19 (nominal speed)
d1-26 (leveling speed)
<1>
nominal speed × 0.4
0t
H1- = 53
(Leveling Speed)
<1>
0
Operating
speed
Time
d1-19
(Nominal Speed)
d1-26
(Leveling Speed)
ON(close)
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