# Forum: Motion Control **URL:** https://forum.deltamotion.com/c/slug/17.md [Latest](https://forum.deltamotion.com/latest.md) · [Categories](https://forum.deltamotion.com/categories.md) · [Tags](https://forum.deltamotion.com/tags.md) --- ## [About the Forum: Motion Control category](https://forum.deltamotion.com/t/about-the-forum-motion-control-category/771)
**Author:** [@dmcnichol](https://forum.deltamotion.com/u/dmcnichol)\ **Replies:** 0
--- ## [Need a One Shot Function](https://forum.deltamotion.com/t/need-a-one-shot-function/1562)
**Author:** [@derrynewyman](https://forum.deltamotion.com/u/derrynewyman)\ **Replies:** 1\ **Last updated:** [October 20, 2026, 8:03pm UTC](https://forum.deltamotion.com/t/need-a-one-shot-function/1562 "2026-10-20T20:03:56Z")
I need to do a one shot for a proximity switch input. I’m not a script writer. Any help would be wonderful. All I want for christmas is a \[ONS\]:smiling\_face: --- ## [One Shot Function](https://forum.deltamotion.com/t/one-shot-function/1561)
**Author:** [@derrynewyman](https://forum.deltamotion.com/u/derrynewyman)\ **Replies:** 0\ **Last updated:** [October 20, 2026, 7:32pm UTC](https://forum.deltamotion.com/t/one-shot-function/1561 "2026-10-20T19:32:41Z")
I need to do a one shot for a proximity switch input. I’m not a script writer. Any help would be wonderful. All I want for christmas is a \[ONS\]:smiling\_face: --- ## [Plotting Bits](https://forum.deltamotion.com/t/plotting-bits/26)
**Author:** [@Peter\_Nachtwey](https://forum.deltamotion.com/u/Peter_Nachtwey)\ **Replies:** 1\ **Last updated:** [October 19, 2026, 10:14pm UTC](https://forum.deltamotion.com/t/plotting-bits/26 "2026-10-19T22:14:17Z")
Bits can not be plotted directly in RMCTools plots at this time. However, the bits can be converted to a DINT in a user program and plotted. This is done by using the SEL or select function. nBit11:=SEL(bits.11,1,0… --- ## [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 … --- ## [Force vs. Actuator Position Control](https://forum.deltamotion.com/t/force-vs-actuator-position-control/1546)
**Author:** [@NDI\_Test](https://forum.deltamotion.com/u/NDI_Test)\ **Replies:** 2\ **Last updated:** [September 15, 2026, 1:47pm UTC](https://forum.deltamotion.com/t/force-vs-actuator-position-control/1546 "2026-09-15T13:47:59Z")
I am working on actuator load-stroke control, to control force applied to actuator while test actuator extends and retracts. We have a separate load actuator with Star servo valve, load cell linking the two actuators and… --- ## [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… --- ## [ControlLogix Motion Axis Jog Equivalent](https://forum.deltamotion.com/t/controllogix-motion-axis-jog-equivalent/1540)
**Author:** [@Buck](https://forum.deltamotion.com/u/Buck)\ **Replies:** 2\ **Last updated:** [August 21, 2026, 11:48pm UTC](https://forum.deltamotion.com/t/controllogix-motion-axis-jog-equivalent/1540 "2026-08-21T23:48:29Z")
Looking for a true MAJ (Motion Axis Jog) Equivalent for the RMC75E. I want to use an AOI to jog until I issue a motion axis stop. --- ## [D8 Digital Input "Low" Range?](https://forum.deltamotion.com/t/d8-digital-input-low-range/1541)
**Author:** [@NDI\_Test](https://forum.deltamotion.com/u/NDI_Test)\ **Replies:** 1\ **Last updated:** [August 20, 2026, 11:44pm UTC](https://forum.deltamotion.com/t/d8-digital-input-low-range/1541 "2026-08-20T23:44:46Z")
Data sheet for D8 shows two input ranges. 1) 0-3.5 vdc and 2) 7-26.4 vdc. I am hoping to trigger the digital input with 4 vdc. How do I change the input range for the D8 to 0-3.5 vdc? Thanks! --- ## [Event log to plot time](https://forum.deltamotion.com/t/event-log-to-plot-time/1539)
**Author:** [@cshoemaker](https://forum.deltamotion.com/u/cshoemaker)\ **Replies:** 1\ **Last updated:** [August 17, 2026, 7:12pm UTC](https://forum.deltamotion.com/t/event-log-to-plot-time/1539 "2026-08-17T19:12:39Z")
Is there a way to plot time as it is shown in the event log? I can only see straight counters of seconds from UTC or I am guessing from power on. Currently, I am trying to relate a few things happening in other parts o… --- ## [Synchronizing 2x RMC200s over Modbus](https://forum.deltamotion.com/t/synchronizing-2x-rmc200s-over-modbus/1537)
**Author:** [@DylN](https://forum.deltamotion.com/u/DylN)\ **Replies:** 1\ **Last updated:** [July 27, 2026, 10:16pm UTC](https://forum.deltamotion.com/t/synchronizing-2x-rmc200s-over-modbus/1537 "2026-07-27T22:16:45Z")
Hello, I have a couple questions, but first some background: I have inherited a system that was designed using 2x RMC200-02173. Each RMC will control the position of around 30 cylinders with independent linear feedbac… --- ## [Simulate Position to Single Input Force Control - RMC75](https://forum.deltamotion.com/t/simulate-position-to-single-input-force-control-rmc75/1532)
**Author:** [@SchaefflerSMB](https://forum.deltamotion.com/u/SchaefflerSMB)\ **Replies:** 12\ **Last updated:** [June 23, 2026, 3:19pm UTC](https://forum.deltamotion.com/t/simulate-position-to-single-input-force-control-rmc75/1532 "2026-06-23T15:19:04Z")
An RMC75E will be used for dual control (position / single input force). For simulation purposes, a curve has been created to generate a force as a function of position. A ‘Move Absolute (20)’ causes a variable tied to… --- ## [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… --- ## [Calculating Scale and offset from RMC100 to RMC150](https://forum.deltamotion.com/t/calculating-scale-and-offset-from-rmc100-to-rmc150/1526)
**Author:** [@ajoseph](https://forum.deltamotion.com/u/ajoseph)\ **Replies:** 2\ **Last updated:** [May 14, 2026, 8:14pm UTC](https://forum.deltamotion.com/t/calculating-scale-and-offset-from-rmc100-to-rmc150/1526 "2026-05-14T20:14:34Z")
I am upgrading RMC100 to RMC150, and the hydraulic valves and temposonics will remain the same (MDT sensors), units are inches, and some axis are configured as PWM (#4 recirc) and some are Start/Stop. I want to know how… --- ## [How to connect multiple Moog G761 servo valves to one channel of the VC2124?](https://forum.deltamotion.com/t/how-to-connect-multiple-moog-g761-servo-valves-to-one-channel-of-the-vc2124/1522)
**Author:** [@Sunxiaoxing](https://forum.deltamotion.com/u/Sunxiaoxing)\ **Replies:** 3\ **Last updated:** [April 17, 2026, 12:09am UTC](https://forum.deltamotion.com/t/how-to-connect-multiple-moog-g761-servo-valves-to-one-channel-of-the-vc2124/1522 "2026-04-17T00:09:40Z")
Screenshot\_20260416\_094455|690x229 To achieve greater flow, I want to connect four G761 servo valves to one channel of the VC2124. I plan to use the parallel connection method for the G761 valves. How should I connect t… --- ## [Deceleration according to a specific profile](https://forum.deltamotion.com/t/deceleration-according-to-a-specific-profile/1512)
**Author:** [@mahmoud1361](https://forum.deltamotion.com/u/mahmoud1361)\ **Replies:** 0\ **Last updated:** [February 28, 2026, 8:34pm UTC](https://forum.deltamotion.com/t/deceleration-according-to-a-specific-profile/1512 "2026-02-28T20:34:31Z")
I have received a design order for a deceleration system according to a specific profile (crash test system). The maximum load weight is 1500 kg, which is pushed towards the deceleration system and onto a rail with an in… --- ## [Where is the R150E-CPU Profinet GSDML file located](https://forum.deltamotion.com/t/where-is-the-r150e-cpu-profinet-gsdml-file-located/1502)
**Author:** [@ltw826](https://forum.deltamotion.com/u/ltw826)\ **Replies:** 2\ **Last updated:** [February 12, 2026, 6:34pm UTC](https://forum.deltamotion.com/t/where-is-the-r150e-cpu-profinet-gsdml-file-located/1502 "2026-02-12T18:34:13Z")
I’m attempting to use Profinet to communicate to the Delta Motion controller.I cant’ fine the GSDML file on the website. Many thanks. --- ## [Modify I/O card layout without defaulting Axis definition](https://forum.deltamotion.com/t/modify-i-o-card-layout-without-defaulting-axis-definition/469)
**Author:** [@PaulP](https://forum.deltamotion.com/u/PaulP)\ **Replies:** 4\ **Last updated:** [January 15, 2026, 12:01pm UTC](https://forum.deltamotion.com/t/modify-i-o-card-layout-without-defaulting-axis-definition/469 "2026-01-15T12:01:36Z")
I was working on a RMC200 project recently where I had generated a program using CA4 output cards. Between the time the program was created and the hardware was installed, we changed to CV8 output cards instead, and the … --- ## [Noise Error Rate - Where do I go to change it?](https://forum.deltamotion.com/t/noise-error-rate-where-do-i-go-to-change-it/1470)
**Author:** [@Eric](https://forum.deltamotion.com/u/Eric)\ **Replies:** 2\ **Last updated:** [January 12, 2026, 5:49pm UTC](https://forum.deltamotion.com/t/noise-error-rate-where-do-i-go-to-change-it/1470 "2026-01-12T17:49:58Z")
I have read the help file to see where to change it, but I can’t find it anywhere. I have an encoder with a resolution of 65536 ppr, and I keep getting random Noise Error faults. Eric --- ## [The problem of abrupt changes during the force-holding process](https://forum.deltamotion.com/t/the-problem-of-abrupt-changes-during-the-force-holding-process/1468)
**Author:** [@sun\_xx](https://forum.deltamotion.com/u/sun_xx)\ **Replies:** 9\ **Last updated:** [December 15, 2025, 9:02pm UTC](https://forum.deltamotion.com/t/the-problem-of-abrupt-changes-during-the-force-holding-process/1468 "2025-12-15T21:02:11Z")
I think this is a very tricky problem. In the graph, the black line represents force, the yellow line represents the target force, the red line represents displacement, and the blue line represents velocity. When the … --- ## [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… --- ## [Read curve name, data from LabVIEW](https://forum.deltamotion.com/t/read-curve-name-data-from-labview/1467)
**Author:** [@dxwilson](https://forum.deltamotion.com/u/dxwilson)\ **Replies:** 3\ **Last updated:** [November 20, 2025, 12:19am UTC](https://forum.deltamotion.com/t/read-curve-name-data-from-labview/1467 "2025-11-20T00:19:29Z")
I have an RMC75e with AA2 and AP2 modules. We use a custom LabVIEW application for technicians to control motion of two actuators, often using curves. Is there a way for me to read the curve names currently loaded in th… --- ## [Limiting force limit to a positive value, in the decreasing direction](https://forum.deltamotion.com/t/limiting-force-limit-to-a-positive-value-in-the-decreasing-direction/1466)
**Author:** [@Jacob\_Paso](https://forum.deltamotion.com/u/Jacob_Paso)\ **Replies:** 0\ **Last updated:** [November 17, 2025, 8:16pm UTC](https://forum.deltamotion.com/t/limiting-force-limit-to-a-positive-value-in-the-decreasing-direction/1466 "2025-11-17T20:16:44Z")
In most RMC applications that use force limit mode, the force must be limited to a positive value, and must be limited in the direction of increasing force. This means that the force should not exceed that positive value… --- ## [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… --- ## [About Output Faulted Error](https://forum.deltamotion.com/t/about-output-faulted-error/1458)
**Author:** [@sun\_xx](https://forum.deltamotion.com/u/sun_xx)\ **Replies:** 3\ **Last updated:** [October 10, 2025, 8:43pm UTC](https://forum.deltamotion.com/t/about-output-faulted-error/1458 "2025-10-10T20:43:35Z")
Hello, I want to know the specific criteria for determining the the Output Faulted Error. I am currently using a CA4 to connect to a Moog G761 servo valve. The Output Type of The CA4 is set to +/- 20mA. The servo valves… --- ## [Transducer Noise](https://forum.deltamotion.com/t/transducer-noise/180)
**Author:** [@nualartlee](https://forum.deltamotion.com/u/nualartlee)\ **Replies:** 1\ **Last updated:** [June 14, 2012, 11:35pm UTC](https://forum.deltamotion.com/t/transducer-noise/180 "2012-06-14T23:35:11Z")
Hello, Just a brief request for advice. I have attached a plot with the four active 4-20 mA signals coming in to my RMC, and I would love your opinion on the loud noise I get on Cap and Rod signals (WOB channel A and B … --- ## [Generate a vibration signal using Labview](https://forum.deltamotion.com/t/generate-a-vibration-signal-using-labview/1454)
**Author:** [@eva](https://forum.deltamotion.com/u/eva)\ **Replies:** 5\ **Last updated:** [September 9, 2025, 3:57pm UTC](https://forum.deltamotion.com/t/generate-a-vibration-signal-using-labview/1454 "2025-09-09T15:57:42Z")
I want to generate a vibration signal with 30Hz frequency and 1mm amplitude for the RMC75E using LabVIEW. When I tried to generate this signal with the MOVE ABSOLUTE and MOVE ADDITIVE COMMAND, the maximum achievable freq… --- ## [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… [Next page](https://forum.deltamotion.com/c/slug/17.md?page=1)