Min. Slowdown Dist; Slowdown Distance; Correction Distance; Current Position - KEB COMBIVERT F5 Instruction Manual

Position Control
LP.2
Min. slowdown dist.
LP.3
Slowdown distance
LP.4
Correction distance
LP.12
Current position
LP.21
Scaling increments high
LP.22
Scaling increments low
LP.23
Scaling distance
154
This parameter shows the minimum required slow down distance,
based on the adjusted profile in parameters LF.53, LF.54, LF.55
and LF.42, to slow down from contract speed.
This value is the actual distance the drive uses to calculate the
actual deceleration profile. When the distance is learned, the
measured value minus one inch is automatically loaded here.
When this value is adjusted other than zero, the drive looks for the
rising edge of a signal at terminal X2A.17. When the drive sees
the edge, it resets the position counter with actual distance to the
floor to the value adjusted in this parameter.
In example, the leveling zone is 6 inches above and below the floor.
Therefore adjust LP.4 = 6.0 inches. The leveling zone signal is
passed through to the drive's X2A.17 input terminal. When the car
enters leveling zone, the input goes active and the drive resets the
actual position value to 6 inches. This eliminates any accumulated
error while the system was running.
This shows the actual position in inches from the slowdown point.
When the controller gives the slowdown command by turning off
high speed and enabling leveling speed the position value is reset
to zero and begins to increment from there. The value displayed at
the end of the run is the total distance traveled from the slowdown
point.
Parameters LP21, LP22, LP23 provide a means independent from
parameters LF,20, LF.21, 22, 23 to adjust the scaling of inches
into counts on the motor encoder. The scaling is defined by the
following relationship:
counts/inch =
Initially these values are calculated from the values entered
into parameters LF.21, LF.22, LF.23, LF.27, and LF76. After
adjusting these parameters, it is possible to change the values in
LP.21,LP.22,LP.23. Keep in mind that any changes made to the
LF parameters 21, 22, 23, 27 and 76 will force LP21, 22, 23 to
recalculate.
LP21 x 10000 + LP22
LP23