162
E300 Installation and Commissioning Guide
Issue Number: 1
7.22 Short floor landing
The short floor landing function allows operation with 'short' floor heights, where the length of travel is less than the slowing distance from the rated
elevator speed. In such a case, when operating in Creep to floor mode, peak curve operation may not be possible, using the existing profile settings.
For these short floor distances, the short floor landing function provides position controlled travel to the point where the creep speed defined by
Creep
Speed Select
(
G52
) would normally be reached.
The short floor landing distance is defined by
Short Floor Landing Distance
(
G30
) in mm, which is the distance from the current floor position to the
floor / door zone.
Short floor landing is selected using a digital input from the elevator controller routed to
Short Floor Landing Enable
(
H22
) for operation with short floor
less then 0.7 m for example. The control signals for the creep speed defined by
Creep Speed Select
(
G52
) and short floor landing enable must be
applied simultaneously.
Table 7-37 Floor sensor correction distance parameters
The maximum operating speed is calculated from both the short floor distance and the current profile settings so that the creep speed defined by
Creep Speed Select
(
G52
) is reached after the distance set in
Short Floor Landing Distance
(
G30
), and when the floor (door) zone is reached. The
elevator will then continue running at creep speed, stopping normally at the target floor.
Figure 7-29 Short floor landing operation
In the event that the the creep speed defined by
Creep Speed Select
(
G52
) is deselected during operation
Run Jerk 2
(
G14
),
Run Jerk 3
(
G15
),
Run
Jerk 4
(
G16
) and
Deceleration Rate
(
G12
) will be used to bring the elevator car to a stop. This is because
Creep Stop Deceleration Rate
(
G17
) and
Creep Stop Jerk (
G18
) are often set to high values to improve accuracy which would result in an abrupt stop affecting ride comfort.
When
Short Floor Landing Enable
(
H22
) = On (1), Start optimization is not performed.
This mode of operation is not available in Direct to floor.
7.23 Fast start
The fast start function reduces the elevator start time by magnetizing the motor and releasing the brake while the elevator car doors are closing. For
standard operation the magnetization of the motor and brake release are only carried out once the elevator car doors are closed.
This feature allows the elevator drive starting sequence to begin without a speed selection being applied such that the elevator will remain stationary
until the speed signal is given. It is intended to be used with elevator controllers that support fast starting where the signal to close the elevator car
door is routed to
Fast Start Enable
(
H20
) via a digital input, such that the following actions will happen during door closing:
•
The motor contactors are closed
•
The motor is magnetized (IM) / Fluxed (PM)
•
The brake is released
The speed selection should only be applied when the door is closed.
Fast start in available only when operating in RFC-A and RFC-S modes.
If the elevator controller handles the control of the motor contactors,
Fast Start Enable
(
H20
) must be set to On (1) before the motor contactors are
closed. This is to ensure that the elevator drive enable signal via auxiliary contacts on the motor contactors is received after the Fast disable signal.
If the elevator drive handles the control of the motor contactors via
Motor Contactor Control Output
(
B31
) then setting
Fast Start Enable
(
H20
) = On
(1) will begin the starting sequence, and request the motor contactors to close.
If the speed is not applied for 5 s after the load measurement state is reached,
Elevator Software State
(
J03
) = 5 then the fast enable will be aborted.
Additional protection is provided by monitoring any movement of the elevator while waiting for the speed selection to be applied.
Fast Start Monitoring
Distance
(
H21
) determines the the maximum distance in mm which can be moved during a fast start. If the distance is exceeded then a Trip 69 (
Fast
start err
) is generated, applying the brake and preventing further movement. This protection is disabled by setting
Fast Start Monitoring Distance
(
H21
) = 0.
Parameter
Details
Short Floor Landing Enable (
H22
)
Enables the short floor landing function.
Short Floor Landing Distance (
H22
)
Short floor landing distance (to the floor (door) zone) used for position control during the short floor travel
Time
Sp
ee
d
C
re
ept
of
lo
o
r
Short floor landing enable
(
H22
)
Selected by
Creep Speed Select
(
H52
)
Distance controlled
Drive Enable
Short floor landing enable
Short floor landing distance
(
G30
)
Creep Speed
V1 Speed Reference
(
G1
) to
V10 Speed Reference
(
G10
)
Содержание E300 Series
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