Page 555 - MiSUMi 2025
P. 555

Economy series   Technical Calculation  Technical Calculation                         Economy series
 Cable Carriers                                                                         Cable Carriers     Carriers  Cable



                 Step 3. Calculate free span length             <Selection Examples>                      P.05-006
                 Calculate the length of free span by required moving stroke and      2000mm is required for strokes. Free span length requires
                                                                  2000/2=1000mm
                 the position of fixed end.                       as the fixed end can be set at a stroke intermediate point.
                                   S (Stroke)              <Free Span Length>                              (Machinery Cables)  Robot Cables
                               S/2          S/2            Distance between the Cable Carriers moving end (A) and bending
                                       Free Span Length    radius arc origin point (B).                   P.05-015
                                   (B)            (A)
                                                           When positioning the fixed end in the center of the moving stroke,
                       R                                     Free Span Length = Stroke/2                   Cables for Signals

                         Moving End
                                       Fixed End  Moving End  * Possible to minimize the quantity of Cable Carriers links by setting    Network Cables /
                                                            the fixed end at the intermediate point of stroke.
                                                                                                          P.05-021
                 Step 4. Calculate the required number of links
                  Calculate the required number of links by the following formula.  S (Stroke)             Fans  Heat Shrink Tubes /
                       S +K+A                                                    Free Span
                       2
                     n=  P
                                                                             R        Moving End          P.05-025
                  n: Number of Links (Round up the number after the decimal point.)  Fixed End  Expansion  H(*)  HF(*)
                  S: Stroke
                  K: Arc Length + Margin (*)                                     A   S/2                   Switching Hubs  Network Communication /
                  A:  Distance from an intermediate point (mm) when
                    fixed end is not set at a stroke intermediate point
                    (0 when at an intermediate point).
                  P: Link Pitch(*)                             E  Symbols in the diagram: HF indicates the passable height that   P.05-035
                *1 About the number of backup links             takes into account the expansion height generated with cables /
                ·  In the case of new designs, there may be a possibility that carrier   hoses, etc. not inserted, when using the Cable Carriers at a
                 links run short.                               free span length.                          Products  Other New
                ·  It is recommended that links are selected longer by one or two
                 links, and are adjusted (removed) at the time of installing device.  *  Please refer to the product pages for the symbols K
                · For installation, see product pages.         (arc length + margin), P (link pitch) and H-HF (space height).
                                                                                                          P.05-040
                                                                                                           5
                  Precautions for installing and fixing cables
                ·  Tie a both ends of the Cable Carriers.
                      Fix                                                                                  Fans / Network & Communication  Cable Carriers / Cables / Heat Shrink Tubes /

                         Fix

                ·  Allow the cable to move freely.

                ·  For the full stroke range, make sure that any portion of a cable is not put in excessive contact with the internal/external circumference of
                 the Cable Carriers.
                     Cable
                     Carriers    ·  No excessive     ·  Excessive contact with the   ·  Excessive contact with the
                                  contact             internal circumference       external circumference
                                                            ×                            ×
                     Cable
                                             ·  Fix both ends of the cable with no tension force applied.
















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