# Motion System Design **URL:** https://forum.deltamotion.com/c/slug/motion-system-design/14.md [Latest](https://forum.deltamotion.com/latest.md) · [Categories](https://forum.deltamotion.com/categories.md) · [Tags](https://forum.deltamotion.com/tags.md) --- ## [About the Motion System Design category](https://forum.deltamotion.com/t/about-the-motion-system-design-category/19)
**Author:** [@system](https://forum.deltamotion.com/u/system)\ **Replies:** 0
Designing a motion system and want some tips? Run into a problem? Talk about it here! --- ## [Regen Valves](https://forum.deltamotion.com/t/regen-valves/1557)
**Author:** [@Paul\_Huumala](https://forum.deltamotion.com/u/Paul_Huumala)\ **Replies:** 1\ **Last updated:** [October 19, 2026, 5:08pm UTC](https://forum.deltamotion.com/t/regen-valves/1557 "2026-10-19T17:08:10Z")
Regen Circuits: What We’ve Seen and What We Use We occasionally get questions about regeneration (regen) circuits. Regen routes oil leaving the rod side of a cylinder back into the cap side during extension, instead of … --- ## [Using the VCCM Equation in Microsoft Excel](https://forum.deltamotion.com/t/using-the-vccm-equation-in-microsoft-excel/1543)
**Author:** [@Jacob\_Paso](https://forum.deltamotion.com/u/Jacob_Paso)\ **Replies:** 0\ **Last updated:** [September 4, 2026, 11:59pm UTC](https://forum.deltamotion.com/t/using-the-vccm-equation-in-microsoft-excel/1543 "2026-09-04T23:59:21Z")
The Valve Control of Cylinder Motion (VCCM) formula calculates how fast a hydraulic servo cylinder will move given the bore, rod diameter, valve size, supply pressure, and load. Use the Microsoft Excel spreadsheet to ca… --- ## [When hose instead of pipe is acceptable](https://forum.deltamotion.com/t/when-hose-instead-of-pipe-is-acceptable/1530)
**Author:** [@Jacob\_Paso](https://forum.deltamotion.com/u/Jacob_Paso)\ **Replies:** 0\ **Last updated:** [June 12, 2026, 9:26pm UTC](https://forum.deltamotion.com/t/when-hose-instead-of-pipe-is-acceptable/1530 "2026-06-12T21:26:29Z")
In a servo-hydraulic system, it is usually important that the hydraulic connection between the valve and cylinder is as short as possible and is made of pipe instead of hose. Otherwise, the energy from the valve may be a… --- ## [Sinusoidal waveform equations](https://forum.deltamotion.com/t/sinusoidal-waveform-equations/339)
**Author:** [@Jacob\_Paso](https://forum.deltamotion.com/u/Jacob_Paso)\ **Replies:** 1\ **Last updated:** [November 26, 2025, 8:58pm UTC](https://forum.deltamotion.com/t/sinusoidal-waveform-equations/339 "2025-11-26T20:58:56Z")
Attached is an Excel spreadsheet with for calculating the max velocity, acceleration, and force of a sinusoidal waveform motion, given the frequency and amplitude. These formulas are useful in determining whether a cycli… --- ## [Why a Cylinder Extends Faster than it Retracts](https://forum.deltamotion.com/t/why-a-cylinder-extends-faster-than-it-retracts/1464)
**Author:** [@Jacob\_Paso](https://forum.deltamotion.com/u/Jacob_Paso)\ **Replies:** 0\ **Last updated:** [November 13, 2025, 8:02pm UTC](https://forum.deltamotion.com/t/why-a-cylinder-extends-faster-than-it-retracts/1464 "2025-11-13T20:02:36Z")
In a servohydraulic system, a cylinder extends faster than it retracts. This may seem counterintuitive, especially since it is true in a flow-limited system, which is what many hydraulic specialists are familiar with. V… --- ## [Hose vs. pipe](https://forum.deltamotion.com/t/hose-vs-pipe/1461)
**Author:** [@Jacob\_Paso](https://forum.deltamotion.com/u/Jacob_Paso)\ **Replies:** 0\ **Last updated:** [October 28, 2025, 5:56pm UTC](https://forum.deltamotion.com/t/hose-vs-pipe/1461 "2025-10-28T17:56:32Z")
Using short, hard pipe between the valve and the cylinder is important for achieving good control of a hydraulic motion system (if you must use hose, see the When hose instead of pipe is acceptable topic). Watch a live … --- ## [Six Degree of Freedom Platform](https://forum.deltamotion.com/t/six-degree-of-freedom-platform/603)
**Author:** [@Peter\_Nachtwey](https://forum.deltamotion.com/u/Peter_Nachtwey)\ **Replies:** 2\ **Last updated:** [October 23, 2025, 11:18pm UTC](https://forum.deltamotion.com/t/six-degree-of-freedom-platform/603 "2025-10-23T23:18:06Z")
Recently Delta Computer System designed a six degree of freedom platform to display at trade shows. The platform was designed at Delta by Paul Huumala using SolidWorks. The top and bottom platform were manufactured ext… --- ## [Where to find wiring diagrams](https://forum.deltamotion.com/t/where-to-find-wiring-diagrams/24)
**Author:** [@Jacob\_Paso](https://forum.deltamotion.com/u/Jacob_Paso)\ **Replies:** 0\ **Last updated:** [January 17, 2008, 7:23pm UTC](https://forum.deltamotion.com/t/where-to-find-wiring-diagrams/24 "2008-01-17T19:23:07Z")
We often receive questions about where to find wiring diagrams, schematics or pin-outs for the RMC75, RMC150, and RMC200. Here are the various places you can find wiring informaton: RMC200 Startup Guide, RMC150 Start-Up… --- ## [About dither -amplitude and dither -frequency](https://forum.deltamotion.com/t/about-dither-amplitude-and-dither-frequency/300)
**Author:** [@mars\_bruce\_lee](https://forum.deltamotion.com/u/mars_bruce_lee)\ **Replies:** 1\ **Last updated:** [March 11, 2014, 5:51pm UTC](https://forum.deltamotion.com/t/about-dither-amplitude-and-dither-frequency/300 "2014-03-11T17:51:42Z")
Some other brand hydraulic motion control. Including amplitude and dither -frequency parameter。 Does Rmctool Consider this parameter ？ what‘s the function of the two parameter in the hydraulic motion control？ --- ## [Fast and slow valves on same axis](https://forum.deltamotion.com/t/fast-and-slow-valves-on-same-axis/1384)
**Author:** [@JeffPrice1](https://forum.deltamotion.com/u/JeffPrice1)\ **Replies:** 1\ **Last updated:** [January 29, 2025, 4:04pm UTC](https://forum.deltamotion.com/t/fast-and-slow-valves-on-same-axis/1384 "2025-01-29T16:04:23Z")
My application has an axis which has two proportional valves in parallel driving a hydraulic cylinder. One large valve to move the cylinder quickly to its start position and a small valve to implement position/force cont… --- ## [Hydraulic Motor oscillates at the special speed！](https://forum.deltamotion.com/t/hydraulic-motor-oscillates-at-the-special-speed/1293)
**Author:** [@ZHUTING](https://forum.deltamotion.com/u/ZHUTING)\ **Replies:** 1\ **Last updated:** [July 31, 2024, 10:39pm UTC](https://forum.deltamotion.com/t/hydraulic-motor-oscillates-at-the-special-speed/1293 "2024-07-31T22:39:12Z")
Hi, I’m hopping someone could help. The hydraulic motor is controled by a high-performence valve named D1FPE50MA9NS00. The valve is controled by RMC75S. When the hydraulic motor speed is 3301rpm,The system tend to os… --- ## [Computing the Natural Frequency of the Cylinder and Load](https://forum.deltamotion.com/t/computing-the-natural-frequency-of-the-cylinder-and-load/1042)
**Author:** [@Peter\_Nachtwey](https://forum.deltamotion.com/u/Peter_Nachtwey)\ **Replies:** 10\ **Last updated:** [March 28, 2024, 3:35pm UTC](https://forum.deltamotion.com/t/computing-the-natural-frequency-of-the-cylinder-and-load/1042 "2024-03-28T15:35:06Z")
The simple equation. This is good to get an approximation for the natural frequency in radians per second, { \\omega }\_{ n }=\\sqrt { \\frac { 4\\cdot \\beta \\cdot { Area }\_{ avg }^{ 2 } }{ Mass\\cdot TotalVolume } } The … --- ## [Open loop actuation of cylinder at 300Hz](https://forum.deltamotion.com/t/open-loop-actuation-of-cylinder-at-300hz/1257)
**Author:** [@DINN](https://forum.deltamotion.com/u/DINN)\ **Replies:** 3\ **Last updated:** [March 26, 2024, 2:44pm UTC](https://forum.deltamotion.com/t/open-loop-actuation-of-cylinder-at-300hz/1257 "2024-03-26T14:44:55Z")
Can we actuate cylinder in open loop with 300Hz frequency ? Cylinder stroke is 0.001042 cm & annular area is 18.51 sq. cm What are the challenges to do that? --- ## [Comparing the RMC150 and RMC70。](https://forum.deltamotion.com/t/comparing-the-rmc150-and-rmc70/256)
**Author:** [@mars\_bruce\_lee](https://forum.deltamotion.com/u/mars_bruce_lee)\ **Replies:** 1\ **Last updated:** [January 27, 2014, 7:05pm UTC](https://forum.deltamotion.com/t/comparing-the-rmc150-and-rmc70/256 "2014-01-27T19:05:09Z")
Comparing the RMC150 and RMC70。 I have 2 Axis, How should I choose？ Functions used in the project ： Sine and square wave profile control。 Is Computing speed same between rmc70 and rmc150? --- ## [RMC200 Power consumption](https://forum.deltamotion.com/t/rmc200-power-consumption/1202)
**Author:** [@Jacob\_Paso](https://forum.deltamotion.com/u/Jacob_Paso)\ **Replies:** 0\ **Last updated:** [August 28, 2023, 10:23pm UTC](https://forum.deltamotion.com/t/rmc200-power-consumption/1202 "2023-08-28T22:23:57Z")
The attached Excel spreadsheet can be used to calculate the approximate power consumption of the RMC200. The consumption data is from the RMC200 datasheet, which lists maximum consumption, assuming all I/O points on the … --- ## [Feedback and valving for very low speed applications](https://forum.deltamotion.com/t/feedback-and-valving-for-very-low-speed-applications/1169)
**Author:** [@Aaron\_Heinrich](https://forum.deltamotion.com/u/Aaron_Heinrich)\ **Replies:** 0\ **Last updated:** [April 6, 2023, 7:44pm UTC](https://forum.deltamotion.com/t/feedback-and-valving-for-very-low-speed-applications/1169 "2023-04-06T19:44:22Z")
What if a system needs to move at extremely low speeds? What needs to be considered from a design standpoint, and what should we expect from the final system? Let’s take a look at the feedback and output to make a decisi… --- ## [linear rotary encoder](https://forum.deltamotion.com/t/linear-rotary-encoder/125)
**Author:** [@Chuck](https://forum.deltamotion.com/u/Chuck)\ **Replies:** 14\ **Last updated:** [May 5, 2011, 8:32pm UTC](https://forum.deltamotion.com/t/linear-rotary-encoder/125 "2011-05-05T20:32:18Z")
I’m will be trying to control a hydraulic motor and the existing analog encoder is a amci.com/rotary-encoders/me1 … ncoder.asp The unit is 360 degree angular range version (1024 bit). I’ve ordered the RMC150-h1 and nee… --- ## [fast pressure transducers](https://forum.deltamotion.com/t/fast-pressure-transducers/150)
**Author:** [@perryyoder](https://forum.deltamotion.com/u/perryyoder)\ **Replies:** 1\ **Last updated:** [September 21, 2011, 5:40pm UTC](https://forum.deltamotion.com/t/fast-pressure-transducers/150 "2011-09-21T17:40:03Z")
Looking for pressure transducers with \<1ms rise time --- ## [Pressure Transducers](https://forum.deltamotion.com/t/pressure-transducers/28)
**Author:** [@CharlesM](https://forum.deltamotion.com/u/CharlesM)\ **Replies:** 5\ **Last updated:** [September 21, 2011, 5:40pm UTC](https://forum.deltamotion.com/t/pressure-transducers/28 "2011-09-21T17:40:18Z")
I have an application where I will have a tonnage cylinder and a jack cylinder. The tonnage cylinder will single ended and have a 14" bore. The jack cylinder will have a 5" bore and a 3" rod. This would be approx a 19" b… --- ## [Simple Hydraulic Motion Control using Analog input](https://forum.deltamotion.com/t/simple-hydraulic-motion-control-using-analog-input/311)
**Author:** [@luxint](https://forum.deltamotion.com/u/luxint)\ **Replies:** 3\ **Last updated:** [June 6, 2014, 4:06pm UTC](https://forum.deltamotion.com/t/simple-hydraulic-motion-control-using-analog-input/311 "2014-06-06T16:06:28Z")
Hi, I’m hopping someone can help. I am designing a simple automated movement for a performance robot. I would like to move a hydraulic cylinder with position feed back using a 0-10vdc analog input. What Delta control d… --- ## [RMC151E vs. RMC150E](https://forum.deltamotion.com/t/rmc151e-vs-rmc150e/336)
**Author:** [@Jacob\_Paso](https://forum.deltamotion.com/u/Jacob_Paso)\ **Replies:** 0\ **Last updated:** [December 18, 2014, 10:27pm UTC](https://forum.deltamotion.com/t/rmc151e-vs-rmc150e/336 "2014-12-18T22:27:08Z")
The RMC151E CPU module is identical to the RMC150E, plus adds the ability to do dual-loop control. Dual-loop control means controlling with two feedback transducers such as position and pressure, or position and force, w… --- ## [Single-ended or Neuter Output Magnetostrictive Transducers](https://forum.deltamotion.com/t/single-ended-or-neuter-output-magnetostrictive-transducers/112)
**Author:** [@Jacob\_Paso](https://forum.deltamotion.com/u/Jacob_Paso)\ **Replies:** 0\ **Last updated:** [October 29, 2010, 3:52pm UTC](https://forum.deltamotion.com/t/single-ended-or-neuter-output-magnetostrictive-transducers/112 "2010-10-29T15:52:06Z")
Introduction A customer wants to upgrade the controls on their system without replacing their old magnetostrictive transducers. The older transducer is configured as a single-ended (neuter) Start/Stop or PWM output. No… --- ## [Tuning mechanically linked axes](https://forum.deltamotion.com/t/tuning-mechanically-linked-axes/766)
**Author:** [@Paul\_Huumala](https://forum.deltamotion.com/u/Paul_Huumala)\ **Replies:** 3\ **Last updated:** [February 17, 2022, 8:23pm UTC](https://forum.deltamotion.com/t/tuning-mechanically-linked-axes/766 "2022-02-17T20:23:32Z")
Tuning Mechanically Linked Axes Method 1: Tune individually, then as system Tune the cylinders individually while not connected to the mechanical system. Make sure to tune very conservatively, because if you tune it … --- ## [Main axis open loop slave axis geare，control modes](https://forum.deltamotion.com/t/main-axis-open-loop-slave-axis-geare-control-modes/968)
**Author:** [@mars\_bruce\_lee](https://forum.deltamotion.com/u/mars_bruce_lee)\ **Replies:** 1\ **Last updated:** [December 20, 2021, 7:39pm UTC](https://forum.deltamotion.com/t/main-axis-open-loop-slave-axis-geare-control-modes/968 "2021-12-20T19:39:04Z")
When the main axis and the slave axis are geared, if the main axis is running in the open loop mode, the speed is always changing. At this time, can the parameters of feed forward and differential be used for the slave a… --- ## [How to achieve rapid positioning in the final stage of hydraulic servo？](https://forum.deltamotion.com/t/how-to-achieve-rapid-positioning-in-the-final-stage-of-hydraulic-servo/969)
**Author:** [@mars\_bruce\_lee](https://forum.deltamotion.com/u/mars_bruce_lee)\ **Replies:** 3\ **Last updated:** [December 20, 2021, 4:42pm UTC](https://forum.deltamotion.com/t/how-to-achieve-rapid-positioning-in-the-final-stage-of-hydraulic-servo/969 "2021-12-20T16:42:15Z")
How to achieve rapid positioning in the final stage of hydraulic servo, which parameters are generally adjusted for rapid positioning In many projects, the positioning accuracy time in the final positioning stage is too… --- ## [Maximum Cylinder Acceleration](https://forum.deltamotion.com/t/maximum-cylinder-acceleration/401)
**Author:** [@ndzied1](https://forum.deltamotion.com/u/ndzied1)\ **Replies:** 17\ **Last updated:** [July 3, 2021, 6:02am UTC](https://forum.deltamotion.com/t/maximum-cylinder-acceleration/401 "2021-07-03T06:02:57Z")
I have a system that needs to move very fast - or at least what I would consider very fast. It is a press application that the customer wants to at 240 parts per minute (ppm). This gives a total cycle time of 250msec. … --- ## [Isolation and common pins on RMC modules](https://forum.deltamotion.com/t/isolation-and-common-pins-on-rmc-modules/900)
**Author:** [@Jacob\_Paso](https://forum.deltamotion.com/u/Jacob_Paso)\ **Replies:** 0\ **Last updated:** [June 1, 2021, 10:28pm UTC](https://forum.deltamotion.com/t/isolation-and-common-pins-on-rmc-modules/900 "2021-06-01T22:28:43Z")
This topic explains the isolation of the RMC modules. This information is important for properly wiring the common pins and avoiding ground loops. The isolation is functional isolation and not for safety. Isolation is no… --- ## [Switching the pressure input on a position-pressure axis](https://forum.deltamotion.com/t/switching-the-pressure-input-on-a-position-pressure-axis/44)
**Author:** [@Jacob\_Paso](https://forum.deltamotion.com/u/Jacob_Paso)\ **Replies:** 0\ **Last updated:** [June 10, 2008, 8:24pm UTC](https://forum.deltamotion.com/t/switching-the-pressure-input-on-a-position-pressure-axis/44 "2008-06-10T20:24:40Z")
Delta has run across some position-pressure or position-force applications where the customer wants to change the pressure or force feedback to a different transducer during the machine operation. Here are two different… --- ## [Wire Break on RS422 Quadrature Input](https://forum.deltamotion.com/t/wire-break-on-rs422-quadrature-input/596)
**Author:** [@Paul\_Huumala](https://forum.deltamotion.com/u/Paul_Huumala)\ **Replies:** 0\ **Last updated:** [June 25, 2019, 5:04pm UTC](https://forum.deltamotion.com/t/wire-break-on-rs422-quadrature-input/596 "2019-06-25T17:04:51Z")
Problem When wiring an RS422 quadrature encoder, RMCTools will not receive counts and the Wire Break status bit will be active. This bit can be seen by selecting the All tab of the Axis Status Registers and expanding th… [Next page](https://forum.deltamotion.com/c/slug/motion-system-design/14.md?page=1)