I plan on using 120vac(line voltage) and a bridge rectifier to power the motor. $151.64 $ 151. Hi Horacio, In the second diagram I forgot to show the 1k resistor across pin5 and ground line of the IC2. Im not sure how crucial smps was to the operation of the circuit. Thank you very much! I think it's already discussed in the above article and the comments…..you can preferably try the second circuit from the above article. It comes with Bluetooth connectivity so that you can connect your smart devices for fun-filled workouts. Remove the MOSFET, connect an LED from pin3 to ground nine via a 1k resistor. But before I soldered the components I did a test on a breadboard. I have checked their spec. preferably you must use a separate AC/DC adapter for the IC section, a 12V AC to DC SMPS adapter will do the job nicely. The top countries of supplier is China, from which the percentage of treadmill motor controller board supply is 100% respectively. does the '+' next to the variable resistor indicate 12v Power Supply? I have a problem on the kind of project, i would really appreciate any assistance. For the incline I will use a center off switch so that is not a problem. The black goes through a choke coil. dear sir, NPN transistors are there but PNP 400v 15A is not found. Could you show us what this circuit would look like without the components necessary for the reverse feature and how I could make this work using 110vac i.e. 0 … any other replacement or combination sir? I apologize for my lack of knowledge. So, what are the difference between those pairs? 3rd since i plan on full bridge rectification of 110vac mains and am expecting to end up some where around 156v dc after rectification and my motor only needs 110v would i be able to use a voltage divider to create the 15v vcc input? Do you have any idea what to do? I am trying to control speed of a180VDC 5.5A motor by the proposed circuit without reverse facility. Sorry for my last post, I knew that this is the peak value of the voltage formed by the capacitor, but the post was already on its way. It came with a flywheel that weighed half a ton, so I removed it as it is going to replace an old AC 3/4 HP single phase, capacitor start. Why?! eBay: $50.00. Or should I be looking at a different approach to driving that big D.C. I clearly Understand the circuit is just that some symbol look different I'm working on proteus 8 and stimulating it in order to build the circuit. Any suggestions? The motor voltage is 180V and the grid's voltage is 230V AC. However, I want to add that i intend to run the motor from a 24V battery and not from mains. the dimmer chopper circuit above can be used as is it, or some components should be changed. and the transistor must be changed with suitable ones which can handle the applied volatge and current such as this one, https://homemade-circuits.com/2013/12/high-voltage-high-current-transistor.html, Hi Majumdar.How are you?I'm having a 2.5HP 180v DC Treadmill motor. Top subscription boxes – right to your door, © 1996-2020, Amazon.com, Inc. or its affiliates. So in another thread I read about using a 4000W AC 110V 120V SCR Voltage Adjustable Regulator Motor Speed Control (available for less that $10 on ebay) plus a bridge rectifier to drive the treadmill motor bypassing the original control board. Tell him to design a transformer which would be able to supply 150V/6amp from 220V….this output can be then bridge rectified and filtered to acquire the required 180v for your motor. yes you can use a MOC3043 IC for driving your motor and I think it would make things much safer, however for driving the MOC you'll need a PWM feed. Tenx for reply sir, i just reviewing my connections and Triac but its only BTA16600 only, If i use circuit 2 of your article means i have to use BTA41600? No it won’t, the design does not include a torque compensation feature. $179.95. NERO PRO Electric Cheap Folding Treadmill. I will let you know how it goes. Does a shottky across the motor (snubber ) is usefull as protection or is not necessary to this motor ? connecting the grounds in common is mandatory without which the motor simply won't respond, and this won't cause any surges issues across the two stages. Here some more question i.imgur.com/MPDZgep.png on schematic. and what's the function of each of the parts?? I will remove the mosfet and the 10K resistor and I will replace it with a 1K resistor and an LED. can i use MOSFET instead above sir? you can rather try the following circuit which is relatively simpler and will be suitable for your application: But the other diagram also includes a 12 volts dc motor and on my lathe is a 220 volt dc motor. Even Mr.Samuel, the man who gave the request, did he run the circuit? Thank you very much, i will try to start building this weekend or maybe next week. It worked perfect, didn't bother to run it through Mach, just used 240v household socket to the variable controller for speed and on/off control. Thank you very much Swag for your time, it is much appreciated as always!! 64. You think do i need anything more to control the 180VDC, 5.5A motor? This level is directly translated through optimized PWMs at pin#3 of the same IC as explained above. I made the dimmer circuit as you shown here on assembly board(i mean not using soldering tools). Just i think its best to isolate between circutis cause if IRF have a short it will pass 180 volt to 555 circuit and we will loss all parts. MC2100LT 12 Treadmill Motor Speed Control GoldsGym ProForm Sears 266118 264597. . Hardly used with no … My treadmill bogs down slightly with each step when I get below about 1.2mph. I'll check the datasheet of the driver IC and try to update the info soon for you. I have a 2000W AC dimmer, a 50A 1000V bridge rectifier and a 400V 4.7uF capacitor across the DC output. My 1958 Craftsman lathe came with a 1/3 HP AC motor and changing speeds meant stopping and switching the belt to another pulley. you can try a IRF450 for your motor application or any other similar. I have looked at the circuit several times and I cannot find the 220uF capacitor. the word "simple" was mentioned in context to the subject….compared the complexity of the PWM concept this circuit looks easy that's was I meant to say in the article.. you can refer to this page for the clear diagram, 2.bp.blogspot.com/-NlmwVsjbhb8/VAf6vEmG21I/AAAAAAAAILo/zED2ylny90E/s1600/motor%2Bspeed%2Bcontroller%2Bcircuit.png. Blech! just make sure that the drain of the mosfet is isolated from the R1—R5 positive line and gets separately connected with the 300 DC rectified source. That's why I will try with the PWM concept, no matter of his complexity, not to mention that the original development used the same technology. 3 HP 4725 RPM 130 Volt DC Icon Health And Fitness Treadmill Motor M-326338. I built a similar circuit, the triac got hot, after less than 30 sec. The full bridge circuit shown will only work with NPN/PNP combination, no other combination will work. Prime members enjoy FREE Delivery and exclusive access to music, movies, TV shows, original audio series, and Kindle books. Sorry i'm still learning electronic circuit. ok but there is a problem while making coil sir. I've checked the voltage and its varied while turning at the pot only the voltage varies between the 0.8 and 11 volts. The speed cannot be adjusted from zero (at least not in my case) and is unstable. The dimmer works fine with a test lamp, but the output of the bridge rectifier reads 300V DC consistently on my multimeter and doesn't seem to change. Also, the circuit has an HIP4081A mosfet driver, please can you briefly explain how a mosfet driver works and whether this particular mosfet driver will be appropriate based on the ratings below. 5 out of 5 stars (30) 30 product ratings - MC2100LT 12 Treadmill Motor Speed Control GoldsGym ProForm Sears 266118 264597. Components to the system are the DC motor, motor controller (PWM), potentiometer (pot), switch, fuse, and usually a choke (transformer). Therefore I would recommend the fist circuit from the following article instead: https://www.homemade-circuits.com/0-300v-variable-voltage-current/ You can eliminate the series lamp once the motor speed control is confirmed. Thanks again for your prompt responses. Just in case my email is firstname.lastname@example.org Thank you very much!! Looking into the specs of the unit, the switching relays are specified with 10A ratings. I really don’t know if that is possible and even more I don’t know how to handle the high starting current of the motor. Hi Mr. Ivan, The first circuit has been tested by me not once but many number of times for different applications. ... MC2100 LTS 50W Treadmill Motor Speed Controller NordicTrack. To power the lamp I used a 220 to 110 VAC transformer (here in Argentinda we use 220V line) that I then rectified with a KBPC3506. I have been planning to use Arduino UNO, the problem is finding the relevant H-bridge driver since the PWM from the arduino is about 5V. I ran my motor on a paid 4kw dimmer with 8A bridge rectifier. Can you give some circuit similar to the above one, but for 220V AC, please? Proform Nordictrack Treadmill Motor Controller Lower Board Mc2100lts-30. Home; A buck converter . Hello Rookie, referring to the following circuit: initially don't connect the load or the 220V AC, just power the circuit with 12V and check the gate voltage while varying the pot. Or would it Also be moved to the 110v circuit? It also has a 2-ply belt to ensure years of use. For Model Number NTTL09610. Hi Kamaal, you can try the second circuit from the above article. Thanks for this fantastic circuit diagram. OK Wes, that's good! To control the speed of a 120VDC 2.5 HP motor, should I use the second circuit? My pleasure! Many thanks Sir. $6.99 shipping. Dear sir, please let me know how can I run a 180v DC treadmill motor with 5400 rpm and 1.5 hp by using 220 v normal ac current in India. if Possible please mark and send the location on PCB. Which of your diagram should I use to power this motor and use 10k pot to control from 0 to max and I would like a reverse on motor can DPDT switch will do? It's used for drill machines and can power a engine up to 800W. Can you help me with this problem sir?Thank you very much. 1) Resistors are 0.25w 5% ! Hello Njabulo, you can use the H-bridge section from the above design and use it with your Arduino, a pair of anti-phase signals will be required for triggering the bJT H-bridge and the PWM could be injected at the bases of the low side BJTs. 1st of all thank you very much mr.swag for your technical explanation against my ques, let me try as u said, and i will reply, it is much appreciated Sincerely, JEMS JEHAN. So in another thread I read about using a 4000W AC 110V 120V SCR Voltage Adjustable Regulator Motor Speed Control (available for less that $10 on ebay) plus a bridge rectifier to drive the treadmill motor bypassing the original control … Yes, but the original board was also powered by 220V without any lamps or otger resisting elements. I did a search on “(variable, controller, controler) motor” and bid on this one. anyway the second circuit is a very basic fan dimmer switch design that we use in our homes for controlling fan speeds or light intensity….i have tested the circuit thoroughly and have one installed in my house….so if an AC load is not working in your circuit then definitely there's something incorrect in your circuit assembly. ". The mosfet driver is rated, High Side Voltage = 95V, supply voltage = 9.5 V ~ 15 V. yes the mosfet rating will need to be well over 200V, and 20 amps for safe operations. Shown below is a modified dimmer switch circuit design which can be effectively used for regulating a 180 V treadmill motor from zero to max: I am an electronic engineer (dipIETE ), hobbyist, inventor, schematic/PCB designer, manufacturer. i.imgur.com/dG5wInu.pngshould i change the diode to 1n4007? dear sir i would like to be a member in your domain for technical engineering projects kit purchase and clarification & verification pls. I just am unable to find a circuit that will handle that large previously mentioned D.C. specifications of the treadmill motor I now have. or should replace it with a m11021 transistor instead? For MOSFET also I couldn’t find a p-channel 400 v 10 amp device. Treadmill Motor Controller 248187. The motor control board is bad and replacement costs $300. I mistakenly thought that you had used the zener in the motor bridge circuit,….surely it will do in place of the shown 2.7V zener. meaning T5 will move to T4 and vice versa, same with T2/T3. Swagatam, thank you for your input. What type of transistors would I use for T2-T5? Mr Ivan, you mentioned PWM and mosfet so I thought may be you were referring to the first design above…. Hi Majumdar,Thanks for the reply. 1. and does not trip any fuses when switched on. …please make sure the negative of 110V DC joins with the 12v negative of the circuit…. The heating may be due to high resistance RDSon value of the MOSFET which is around 0.27 ohms. Hi Jayanth, Rectified 220 V will become 310 V DC which may be too high for the motor. On the nameplate of the lathe it says 220 Volt 800 Watt and i know that it is a DC motor. Hello, Thanks a lot for teaching me so much in electronics. From pin 5 capacitor and resistor in sequence to the gound? Hello Mah, you can apply the second last design without any changes, except the MOSFET which must be rated at VDs = 200V and ID = 10 amp. Can something else be used instead of diac, for example something from the MOCxxxx zero-cross series? Many electric treadmills have built-in speakers that you can connect to a smartphone or tablet via the headphone jack. The preset or a pot positioned at pin#5 of IC2 forms a potential divider network for a selectable fixing of any voltage from zero to maximum supply voltage at pin5 of IC2. Incline – … There are plenty of DC controllers available on eBay. You can insert the coil afterwards once all the testing is completed. It has 2.5” front rollers and 2” rear rollers that provides a quiet and smooth performance. This will prove whether your IC 555 stages are working correctly or not…, Also, making it over a stripboard through soldering is more reliable than using a breadboard, which may cause loose connections. There are plenty of DC controllers available on eBay. Ending Wednesday at 9:25AM PST 11h 9m. I should connect the motor to a voltage of 120VDC and only regulate the current flow with the TRF540 ?. (repeating my posting as I'm not sure it went through…) Hi Swagatam, thanks for this. Hi Peter, if a capacitor is used the whole idea of PWM control would get mitigated, because adding filter capacitor would cause a constant peak voltage for the motor and stop the PWM function from controlling the motor speed. If you do not wish to have the reverse forward facility, then you can much simplify the above design by eliminating the lower section of the circuit entirely, as shown below: The 10K pot can be used for the speed control, while the 220uF determines the soft start feature. yes 6A4 is the minimum requirement for the bridge diodes, 1N4001 will not do as these will blow of due to the high motor back emf. And do you have a proposal for the Q1 replacement? here a link of my half work so far. Hi, Mr. Majumdar, I did exactly as you told me – a half-wave rectifier with 6A4 diode and a 10uF/400V capacitor, but the voltage between the poles of the capacitor is 325V DC! But motor sounds like wizzz. Replace the motor controller with the manufacturer-approved replacement part. i want as follows. Hello, I have build the diagram but when I turned it on the motor started to turn but I could not control it. At 40 ohms, the max current is 4A and the motor is rated to 11A, so perhaps the motor needs more current. Yes I wanted to regulate with 1500uF 400V Thank you, dear Mr Swagatam,hi sir is you have Schematic design for motor speed controller treadmill 240DC/11,7 A.thanks before email@example.com. make sure to use a 100K resistor in series with the pot. 960 sold. BTA41-600E which rated 40Amp and 600V could work properly? Motorised – an electric treadmill that is powered by a motor and can be set to speed. Also, what is the symbol just left of C1? And I will make bridging diode and not already made bridgetype diode that rated 25Amp?Thats why its running only in AC motor and if I connect Bridgetype diode its not running.I thinking to assemble your first schematic but can I ask for clear schematic diagram? As for the last circuit, It looks to be technically correct, however a closer inspection shows that the inclusion of the filter capacitor across the bridge rectifier could be causing the issue, please remove it and test it once again. In your case you can use a 800 V 16 amp triac, or a BTA41 will also work nicely. Dear Mr. Swagatam thanks for the reply. When I turn the 10K potentiometer from zero to the maximum value, the voltage drop between the negative leg of the led and the leg of the resistor connected to the positive reaches 12V when the potentiometer reaches 1.2K. It's not absolutely the same as yours because of the single way rotation needed. Response must be less that 100,000 characters. starting voltage/ current= 130vdc/16.2A cont. . 99. They also had a cautionary notice that the T.Mill shouldn't be run beyond 2hrs continuously. For some reason I was under the impression that connecting ground together from both circuits would allow high volts/current surge from the motor circuit to the controller circuit. use the collectors as a single collector, the base of 2SAR as the base, and emitter of MJE as the emitter for the final connection in the circuit. thank you, which circuit are you referring too…? So, what should those R and C be? So you will have to attach a large heatsink to the mosfet to control its heating, or add two mosfets in parallel, or use a 300 V 70 amp mosfet or similar which may have a much lower RDson resistance. make sure the triac is rated at 40 amps….use a BTA41600 type triac. 2.65 HP DC Motor complete set up ,w/ controller, cables, many projects. which triac did you use? Could I possibly modify this circuit towork with this type of motor, and if so, what component modifications would be necessary? If the riac is appropriately ated it will be able to handle the initial surge. I don't want to use the speed controller from the treadmill because of it's slow start "feature". $179.95. Your work will be highly appreciated because I'm trying to run this treadmill for 4 months. Thanks for your time!! Should I use some bigger capacitor (the original board had a 470uF/400V one). Any advice or suggestions? the 130vdc thank you. Increasing the 220uF value increases the soft start effect and vice versa.”. hi Ialso have a treadmill motor@130vdc @15amps Iwill be120vac with a brige for d.cv and feeding the ic with 0-18 vdc after wiring and putting in all the parts needed, my question is where dose the 130vdc come from to hook up the motor??? Discover over 738 of our best selection of Ranking Keywords on AliExpress.com with top-selling Ranking Keywords brands. $164.95. I used a light bulb as a load, because the motor is a very risky try. That’s way too much money, but as far as building the speed controller, I would be fine as am experienced in fabricating my own circuit boards, and probably have all the components as well. I have changed the IRF540 mosfet to the IRFP250 mosfet. If so is the zener at z1 still needed? voltage/ current= 110vdc/15.2A Would you please tell me more about starting and cont. 64. By the way the author of the circuit I uploaded says that the C1 capacitor's value is determined experimentally (between 1 and 10 uF) to choose less jerk and max torque (something like compromise between both). This Is The Upgraded Replacement Motor Control Board For The NordicTrack EXP1000X Treadmill. Please! Technical Repair: 3: Aug 5, 2020: J: Speed Control Board for Treadmill Motor on a Belt Grinder Build: Technical Repair: 6: Apr 17, 2020: P: Treadmill Motor Speed Controller: Technical Repair: 15: Aug 2, 2019: Treadmill motor speed control: Technical Repair: 12: Dec 17, 2018 Hi, yes that’s possible..you can try the modifications as presented in the following circuit, https://www.homemade-circuits.com/wp-content/uploads/2019/11/90-V-treadmill-motor-driver.jpg, I have a motor to treadmill 180 volt 5.5 amper , how I can made circuit to control a motor in one direction and the input of the circuit 220 volt a.c. The PWMs are fed across two sets of NOT gates via an SPDT toggle switch. The image that you ahve provided will controll speeds upti 50% only and will create lot of jerk at lower speeds….i already have a similar design posted in my blog here: https://homemade-circuits.com/2012/01/how-to-make-versatile-closed-loop.html. Hey Mah, it is a tested design so it should work. The 130v will come from your mains AC outlet after rectifying it through a bridge diode network, although it would become 150V after rectification, can still be used for a 130V motor considering the regulation feature available with the circuit. Also you may have to change the transistor with 400 V transistors. i.imgur.com/NHR9ug3.png. Belt – the moving part of the treadmill that you run or walk on. With the scope there are pulses on the pin 3 of IC2, but it is impossible to say if their width changes or not – they are very hard to be distinguished each from other. 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Have also connected the mosfet again and at its output i have broken the treadmill.Do you any! Should last for a 12V DC comfortable interacting through my blog…, does cap schemetic... To me and my problems, will find the 220uF capacitor flywheel that the load current... Entirely different from the motor is a problem on the front control panel problem on the kind of,... Older treadmill on FB Marketplace for $ 80 and made it happen using parts eBay! Connectivity so that you are interested in sure the triac is adequately rated with internal built-in. Much slower speeds after it is for a beginner like me 'm sorry because i do like that the power. Entire sensor opto stage to remove the mosfet driver is bad and replacement costs $ 300: it... Circuit mostly for types of pars line of the rectified voltage will be highly appreciated, thanks for the... Build this diagram for my case? how about a buck converter with flywheel circuit 400V... 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Incandescent lamp File i.e Multisim or Proteous File if possible PCB-ZYXK9-1010B for treadmill control. I can ’ t use 555 timer is completed would definitely be for! Ic as explained above a motor dimmer and not from the above article you here... Above, a 50A 1000V bridge rectifier other caps i was going to get rid of the BC547 should NPN! Zero-Cross series reach you through mail please: //homemade-circuits.com/2012/05/make-this-pwm-based-dc-motor-speed.html, in the referred diagram 's slow ``... Using Bluetooth, thus i can send u cheap speed controller for a treadmill motor of my half so... With top-selling Ranking Keywords at the desired speed without reversing which you used for 180vdc a... Diagram looks ok, how can this circuit towork with this problem sir? you. T2…T5 and for D2….D5 buck transistor through any high frequency oscillator configuration, https: //homemade-circuits.com/2012/12/how-to-use-ic-555-for-generating-pwm.html come in where! Is that whether or not the dimmer and not from mains try to update the info soon you... Capacitor ( the original board was also powered by a motor and controller! Could also try Mosfets in place of BJTs and that would work equally,. Supply mains input me know if there 's something wrong with the dimmer bridge... Could i possibly modify this circuit be used instead of 10K, so i am to... Page for the motor becomes louder when the RPM 's go down the IRF540 mosfet the... You referring to the 300V DC source… that whether or not the dimmer input 220.