12 Travel Direction Change Counter
84 YASKAWA TOEPC710616134G AC Drive L1000A Technical Manual Addendum
■ Added Monitors
Monitor
(Hex.)
Operator Display Description
Analog Output
Scaling (H4-xx
selection)
Unit
U4-45
(084F)
DL2 Rem Distance
Direct Landing 2 Remaining Distance
Shows the remaining distance after 5Fh was activated. After the distance S5-15
has been travelled, U4-45 is set to 0.
10 V: 5000 m
(196.85 in)
*1
0.001 m
(0.01 in)
*1
*1 Values not in parentheses apply when o1-12 = 0. Values in parentheses apply when o1-12 = 1.
■ Changes of Standard Digital Input Multi-Functions (DIMF)
H1-xx Setting
(Hex)
Function Name Description
5F Direct Landing 2 Start
S5-10 = 3 [Direct Landing 2 Start] :
When Digital Input 5Fh is activated, the drive decelerates to stop within S5-15 distance. The origin of the reference driven
at the time of 5Fh activation is arbitrary. The driven profile depends on the distance in S5-15.
■ Changes of Standard Digital Output Multi-Functions (DOMF)
H2-xx Setting
(Hex)
Function Name Description
70 In-Position
S5-10 = 3 [Direct Landing 2 Start] :
The lift car has reached the commanded target position within S5-16 bandwidth for a minimum continuous time of S5-17.
The output becomes inactive when 5Fh is activated again.
170 In-Position Inverted value of setting 70.
12 Travel Direction Change Counter
Some elevator ropes have a specified limit of bending changes before they must be replaced. You can use the
function “Travel Direction Change Counter” (TDCC) to monitor and count the number of bending changes. You
must set the value for the specified number of bending changes, then the drive will start counting down with each
direction change. When the drive reaches the threshold you defined, the drive will show a warning to inform you.
When the drive reaches the value 0, the drive completes the trip and then stops operation. Then you must replace
the ropes and reset the counter to enable normal travel operation.
◆ Characteristics
The following example shows how to use the “Travel Direction Change Counter” (TDCC). The example is made
up with the following assumptions:
• Parameter o4-40 = 1 to activate TDCC.
• Terminal S1 is used for Up direction commands.
• Terminal S2 is used for Down direction commands.
• The alarm threshold o4-41 [TDCC Alarm Level] is set to 1.
• The limit of bending changes is set to 4.
• The direction changes with the first travel.
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