KEB COMBIVERT F5 Instruction Manual

Also see for COMBIVERT F5: INSTALLATION GUIDELINE Installation manual Instruction manual Instruction manual Installation manual

Contents

153Position ControlThe actual slow down distance can be learned by the drive or it can beentered manually. However, it is recommended that the drive actually learnthe distance as this will also take into account the internal delays of thecontroller. These delays will actually result in a lower value for the slowdowndistance than that actually measured with a tape measure.First verify that the value in LP.2 is at least 6-8 inches lower than the actualslowdown distance as measured in the hoist-way with a tape measure. Thisdistance reduction accounts for the delay in the controller. If LP.2 is too high ,adjust the profile in parameters 0.LF.53, 0.LF.54, 0.LF.55 to achieve a lowervalue. Note: after changing the profile parameters, LP.2 will automaticallyre-calculate.Now it is possible to learn the slow down distance.1) Move the car on inspection to a floor in the middle of the hoist-way.2) Adjust LP.1 = tEAch.3) Set the display of the drive to LP.12 to view the position in inches.4) Place a call up or down for a High Speed (if necessary, multi-floor) run.5) As the car begins to accelerate, the position value will begin to count upor down. Then at the moment the slowdown is crossed, the position valuewill reset to zero and begin measuring the slowdown distance.6) Once the car comes to a stop and the drive is disabled, the drive willnote the actual position, subtract one inch and then load the value intoparameter LP.3. It will also store the same value minus two additionalinches in LP.4. As a confirmation the display will show tdone. At this pointthe distance has been learned.7) To verify distance, set LP.1 = P onE. Change the display to LF..8) Place a call up or down for a 1 floor run. The display should show thefollowing sequence: noP, boFF, Fcon or rcon, PA (while the car runs tothe floor all the way down to leveling speed), Fdec or rdec, rcon, bon LS,nop. The positioning is functioning normally. Now the distance in LP.4can be manually adjusted to minimize the leveling distance. Additionallythe profile can be further adjusted if needed for ride comfort. Repeat theprocess for a multi-floor run adjusting LP.3 to adjust the leveling distancein this case.) If the unit displays PnA and the car under- or overshoots the floor, theposition is not accessible. Increase the rate of deceleration in 0.LF.54and 0.LF.55 and then re-learn the position. If this still does not resolvethe problem, it may be necessary to move the slowdown point furtheraway from the floor.Learning the slow down distance