DLS Linear Transmission and Positioning System - HEPCO - #19

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The following section should be used by customers who wish to specify a complete system with fitted AC geared motor. Customers who wish to use the mechanical transmission and provide their own drive should refer to the linear drive calculations on page 25. How to Select the Right DLS + AC Geared Motor Combination The method of rating detailed below uses a simplified version of the definitive calculations. It will select the correct system in the vast majority of cases. For unusual and borderline cases the application may be referred to Hepco for a more precise rating. To choose the right system configuration for a given duty, follow the 3 stages outlined below and on page 18: 1) Choose the size of DLS transmission required, considering the following factors: i) The load to be supported by the slide (see page 22 for details of rating); ii) the linear force which is required (a DLS3 has a maximum linear working force of 560N, while for a DLS4 this figure is 1225N); iii) the bending strength of the beam (see page 23 for details of rating); and iv) the physical dimensions of the unit (see pages 8–13). 2) Having decided whether a DLS3 or DLS4 unit is required, the user should then examine the relevant table (below for DLS3 & DLS3C and on page 18 for DLS4) to identify combinations of DLS and geared motor which have a suitable working speed range and nominal linear driving force. If a unit is intended to run at a single speed, is recommended that a unit with a nominal speed close to the working speed is chosen. (continued on next page) * The DLS will produce the Nominal Linear Force at speeds ranging from 50 to 120% of the Nominal Speed. The units will perform with a lower force and duty cycle over a much wider speed range from 10% to 200% of the Nominal Speed. ** The Gearbox Rated Linear Force is the force produced when the gearbox operates at a service factor of 1.4. This is based on fast operation for 8 hours per day. Allowable forces can be reduced or increased if the application is more or less arduous than this. Please contact Hepco’s Technical Department for details. Entries shown in a grey cells are preferred sizes. These are usually available on express delivery. Notes 1) Combinations where the Nominal Linear Force exceeds the Gearbox Rated Linear Force or the belt working force are shown in italic text as in these cases it is possible to overload the gearbox. Often the use of a torque limiter or other technique will enable the DLS to function at a higher rating. Please consult Hepco’s Technical Department for details. 2) Frame size 71 motors are not standard on the DLS3C cantilever axis. Choosing the Right System 17 Nominal Speed m/s at 50Hz* 1.26 0.9 0.63 0.6 0.52 0.43 0.42 0.36 0.3 0.27 0.25 0.21 0.2 0.17 0.17 0.13 0.13 0.1 0.09 0.08 0.06 0.04 Motor Poles 2 2 2 4 2 4 2 2 4 2 4 2 4 2 4 2 4 4 2 4 4 4 Gearbox Ratio 5 7 10 5 12 7 15 18 10 24 12 30 15 38 18 50 24 30 75 38 50 75 Nominal Linear Force /N for system with motor size* 56 S 34 59 87 55 109 84 134 163 126 211 151 251 184 315 218 366 276 322 467 435 477 561 56 L 55 88 126 96 155 138 187 226 201 290 239 343 289 429 339 497 435 519 645 63 S 96 138 205 134 239 197 293 356 285 448 335 528 435 656 477 603 728 63 L 142 205 293 214 348 302 435 492 435 631 519 743 645 728 71 S 222 314 437 302 561 435 645 770 603 728 71 L 339 477 687 435 645 Gearbox Rated Linear Force /N** 429 486 513 483 528 543 513 498 573 513 588 498 573 516 558 406 573 573 379 603 453 424 DLS3 & DLS3C with AC Geared Motor 123