Monarch NICE7000 - Slow-Down Distances Based on Different Rated Elevator Speeds; Installation of Limit Switches

NICE7000 User Manual 3 Mechanical and Electrical Installation
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Table 3-24 Slow-down distances based on different rated elevator speeds
Rated
Elevator
Speed (m/s)
0.25 0.4 0.5 0.63 0.75 1 1.5 1.6 1.75 2 2.5 3 3.5 4
Distance of
Slow-down 1
(m)
0.2 0.2 0.2 0.2 0.4 0.7 1.5 1.7 2.0 2.0 2.0 2.0 2.0 2.0
Distance of
Slow-down 2
(m)
None 2.5 4.0 4.0 4.0 4.0
Distance of
Slow-down 3
(m)
None 6 8 11
•
"V" indicates the elevator speed, and precautions on the actual installation distance are as
follows:
•
V < 1 m/s: The actual installation distances of the slow-down switches should be close to the
values recommended in this table.
•
1 m/s ≤ V ≤ 2 m/s: The actual installation distances of the slow-down switches are allowed to
have an error within ±0.1 m based on the values recommended in this table.
•
2 m/s < V ≤ 4 m/s: The actual installation distances of the slow-down switches are allowed to
have an error within ±0.3 m based on the values recommended in this table.
Note
•
The slow-down distances above are calculated on the basis of the default special deceleration
rate 0.9 m/s
2
.
•
Increasing the special deceleration rate does not affect safety. However, decreasing the special
deceleration rate may bring safety hazard. If any change is in need, re-calculate the slow-down
distance by using the above formula.
3.10.3 Installation of Limit Switches
The up limit switch and down limit switch protect the elevator from over travel top/bottom
terminal when the elevator does not stop at the leveling position of the terminal oor.
•
The up limit switch needs to be installed 30−50 mm away from the top leveling position.
The limit switch acts when the car continues to run upward 30−50 mm from the top
leveling position.
•
The down limit switch needs to be installed 30−50 mm away from the bottom leveling
position. The limit switch acts when the car continues to run downward 30−50 mm from
the bottom leveling position.