5.11 S: Elevator Parameters
■ Leveling Distance Control
Leveling Distance Control uses the accel/decel rate, jerk settings, and stopping distance to automatically calculate a
speed sequence and arrive at the designated floor with increased accuracy. Two types o f Leveling Distance Control are
available that allow the user to select the Stopping Method (S5-10).
W ARNING!
In a d v e rte n t M o v e m e n t Hazard. The e le v a to r w ill n o t stop a t the d e s ig n a te d lo c a tio n a n d an o v e rru n w ill o c c u r w hich m a y
ca u se in ju ry to p e rs o n n e l i f p a ra m e te rs o1-20, S5-11, a n d S 5 -1 2 are se t incorrectly. B e fo re u s in g L e v e lin g D ista n ce Control, m a k e
sure th a t p a ra m e te rs fo r Traction S he ave D ia m e te r (o1-20), D e c e le ra tio n D is ta n c e (S5-11) a n d the Stop D ista n ce (S 5-12) are se t to
the c o rre c t units.
N ote: Leveling Distance Control should be used only for elevators w ith a constant stopping distance. Do not use Leveling Distance
Control in elevators w here the stopping distance changes frequently.
The following functions are disabled when Leveling Distance Control is selected:
• Switching between deceleration times
• Droop Control (b7 parameters)
• Shoot Floor, Advanced Short Floor (S5-01 = 1, 2)
Leveling Distance Control is disabled when any one o f the following functions are selected:
• Analog frequency reference
• Rescue Operation
• Inspection Operation
• During Motor 2 selection
Direct Landing
Direct Landing (S5-10 = 1) is activated at the start o f deceleration, and brings the elevator car to the designated floor
without the use of the leveling speed.
Direct Landing disables Leveling Distance Control, and uses a speed reference calculated by multiplying E1-04 times
S5-13. If a Stop distance correction command (И1-ПП = 5C) is triggered during Direct Landing, then the drive will
switch to the stop distance set in S5-12 for the remaining distance. Direct Landing will end once data from the encoder
indicates that the stopping distance is 0.
Figure 5.46
illustrates a Direct Landing Operation example.
Table 5.15 Conditions fo r Direct Landing
Speed Priority
Direct Landing Start Conditions
Multi-step speed sequence
(d1-18 = 0, 3)
Speed reference
>
E 1-04
x
S5-13 and the U p/D ow n command is not active or the speed reference is 0.
High speed reference has priority
(d 1-18 = 1)
The U p/Dow n command is not active, the speed reference is 0, or the leveling speed reference has been selected by one o f the
m ulti-function input terminals (Н 1 -П П ).
L eveling speed reference has priority
(d 1-18 = 2)
R u n C o m m a n d
( F o r w a r d [ U p ] / R e v e r s e [ D o w n ] ) —
И 1 - П П = 5 C
_
( S t o p D i s t a n c e C o r r e c t i o n )
И 2 - П П = 5 1
( O u t p u t C o n t a c t o r C o n t r o l )
И 1 - П П = 5 6
( M o t o r C o n t a c t o r F e e d b a c k )
И 2 - П П = 5 0 ( B r a k e C o n t r o l ) —
O p e r a t i o n
S p e e d
Z e r o S p e e d
/
a t S t a r t
/
S 1 < 1 >
Z e r o S p e e d
a t S t o p
—
^
----------------
—
►
S 2
T i m e
<
1
>
<1> A rea S1 is the deceleration distance (S5-11) from the start o f deceleration to stop. A rea S2 is the stopping distance (S5-12) from the point
at w hich the stopping distance com pensation signal is entered to when the car arrives at the designated floor.
F ig u r e 5 .4 6 D ire c t L a n d in g O p e r a tio n E x a m p le
O N
O F F
O F F
O N
O N
R u n C o m m a n d D e l a y T i m e ( S 1 - 1 0 )
B r a k e R e l e a s e D e l a y T i m e
4 -------------- ► ( S 1 - 0 6 )
O N
O u t p u t C o n t a c t o r O p e n
D e l a y T i m e ( S 1 - 1 1 )
B r a k e C l o s e
D e l a y T i m e
( S 1 - 0 7 ) _
O F F
228
YASKAWA ELECTRIC SIEP C710616 33D YASKAWA AC Drive L1000A Technical Manual