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Component Development

Questions related to product loading using the Liftdesigner Suite.

Written by Sabine Bunese

How do I set the governor/tension weight height dimension?

Symptom: You want to know how to set the GOV_PU_DZ value before developing your governor.

Solution:

  1. Open your Governors data table in DigiPara Liftdesigner DataManager.

  2. Browse to the GOV_PU_DZ column.
    ​

  3. Enter the value for the distance between the pulley's center line and the governor's bottom point (if the governor is placed in the pit) or top point (if the governor is placed under the shaft ceiling).

  4. Before entering the value, check the governor Z-Position value as well. this is the distance between the governor's bottom/top point to the wall.
    ​

Result: Once GOV_PU_DZ (and the related Liftdesigner DZ value) is set, you can develop your governor.
​

How do I set different car wall to guide rail distances for left and right?

Symptom: The cabin is not centered to the guide rails — you need different car wall-to-guide-rail distances on the left and right side.

LD2027Release

Solution:

  1. Open the Car Frames data table in Liftdesigner DataManager.

  2. Set the value for the shift between the left and right side in the CFD_CAR_2_GUIDES_DELTA column.
    ​

  3. Activate the shift by selecting the corresponding option under CFD_MODE.
    ​

    NOTE: Once asymmetry is active, CFD_CAR_2_GUIDES is no longer set independently — it is defined as the average of the desired left and right distances.

  4. For 3D product loading, use the following parameters directly to develop an asymmetrical car frame:

Parameter

Number

CF_CAR_2_GUIDES_L

[41]

CF_CAR_2_GUIDES_DELTA

[43]

CF_CAR_2_GUIDES_R

[44]

Result: The car frame develops with independent car wall-to-guide-rail distances on the left and right sides, and the corresponding 3D parameters are available for loading products onto the asymmetrical car frame.

How do I define ghost panels for a car folding door?

Symptom: You need to define the width of the ghost panels on a car folding door.

Solution:

  1. Open the Car Doors data table in DigiPara Liftdesigner DataManager.

  2. Set DT_DRAW_TYPE to a value of 4 to switch the door to a folding door.

  3. Set the DD_Z_X2 3D parameter to define the width of the left ghost panel.

  4. Set the DD_Z_X5 3D parameter to define the width of the right ghost panel.

Result: The car folding door displays with ghost panels of the defined width on the left and right side.

How do I create an individual door jamb?

Symptom: You want to create your own individual door jamb with or without an angle, because the standard jambs don't cover this requirement.

Solution:

  1. In Datamanager, create a jamb component in your own library via the Jambs data table.

  2. If it will be used as a landing door frame (not an extra frame), deactivate the existing standard jamb: set the JT_TYPE MODE to disable the door jamb.
    ​

  3. In the Landing Doors data table, fill in a 0 value for the initial Door Frame parameters DD_Z_X2 and _X5, so the new jamb is positioned correctly.

  4. Connect the new jamb to your Landing Door via the DD_JT_RID column in the Landing Door Dimensions Tab.

  5. Fill in the remaining parameters in the Jambs data table according to your requirements.

    TIP: The jamb parameter are explained in detail in the developer DWG file LDXJamb.dwg located in your DigiPara Liftdesigner data pool. MyActivePool\developer\dwg

Result: Your individual door jamb is created, positioned correctly, and connected to the landing door.

How do I set up double wrap on a traction machine?

Symptom: You need to configure a traction machine (TM) for double wrap. There's no option in the gear tables to predefine double wrap directly, and without the correct groove displacement the TM ends up slightly rotated instead of properly aligned.

Manual Solution:

  1. Calculate the required groove displacement. In most cases, this rule applies: DISPLACEMENT = GROOVE_DIST * 1.5.
    Example: with a groove distance of 14 mm, the displacement between the CWT pulley and the TM is 14 × 1.5 = 21 mm.

  2. Set this value in the data tree — no standard property is available for it in the property grid window. Navigate to Shaft.Gear.DEFL_1_DY and change the value to the negative of your calculated displacement (e.g., -21 for the example above).
    ​

Dynamic Rule Solution:

  1. Define a dynamic rule to set the double wrap GEAR_MODE and assign it directly to the gear. The condition can be a description or a GP_USER_PG. Set the assigned parameter to: Me.GEAR_MODE

  2. To switch the gear to double wrap, use this assignment:
    ​(LD("Me.GEAR_MODE") or DigiPara.LDX.GearModes.gmDoubleWrap)
    To switch back to single wrap, use this assignment instead:
    ​(LD("Me.GEAR_MODE") and not DigiPara.LDX.GearModes.gmDoubleWrap)
    ​

  3. Set another dynamic rule to the gear component to set the displacement according to the groove distance.

  4. The conditions asks the GEAR_MODE and the assignment is the groove distance.
    ​

Result: The traction machine is set to double wrap, and its center line is offset from the deflection's center line by the correct groove distance (e.g., 21 mm in the example) instead of being rotated — either set manually or applied automatically if you added the optional rule.

How do I assign the correct traction sheave to an existing traction machine?

Symptom: You need to choose the correct sheave for an existing traction machine.

Solution:

  1. Open your Traction Machines data table in DigiPara Liftdesigner DataManager and browse to the GA_PUT_BASE_ID column.

  2. Click the box under GA_PUT_BASE_ID and select a corresponding sheave for your traction machine from the Common Components manufacturer library that appears.
    ​

  3. Make sure it has the same ID as the sheave you need: open your Sheaves data table and check its PUT_BASE_ID column to confirm.
    ​

  4. Go back to your Traction Machines data table and find the GA_GP_GRP column. Click the box under it and check the GU_PA_DIA column — this value (the sheave diameter) should match the diameter of your selected sheave.

Example: Sheaves with PUT_BASE_ID number 1 have diameters from 400–650 mm. If your traction machine needs a 450 mm diameter sheave, that will fit.

Result: The traction machine has the correct sheave assigned — matching both the PUT_BASE_ID and the required diameter.

How do I create my own profile to use as a beam?

Symptom: You want to create your own profile to use as a beam, based on an existing, similar profile.

Solution:

  1. Locate the related profile you want to base your new one on, and copy it using the Copy Components dialog.
    ​

  2. Click CLose & Ooen Copy to open the table in your module.

  3. Adapt the parameter according to your specification.
    ​

Result: Your own beam profile, based on the copied profile, now exists in the target module.

How do I round dynamic property (3D-Parameter) values using a dynamic rule?

Symptom: You want a dynamic property's calculated value to be automatically rounded (e.g., to the nearest 5 or 10) instead of showing the raw result.

Solution:

  1. Using the Liftdesigner Rule Editor under the Develop Products tab, add a new rule record.

  2. Create the rounding range. For a result rounded to 5:
    ​System.Math.Round(LD("Me.<parameter>")/5,0)*5
    For a result rounded to 10:
    ​System.Math.Round(LD("Me.<parameter>")/10,0)*10

  3. Check and save the rule.
    ​

Result: The dynamic property values are rounded to your chosen increment (e.g., the nearest 5 or 10) whenever the rule recalculates.

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