13 best speed control of dc motor
Speed control of a DC (Direct Current) motor is an important aspect of many industrial, automotive, and home improvement applications. DC motors are widely used due to their reliability and ease of control.Speed control allows you to vary the rotational speed of a DC motor to meet specific requirements. Here are some key points related to speed control of DC motors:
Voltage Control: One of the most common methods to control the speed of a DC motor is by varying the voltage applied to it. By reducing or increasing the voltage, you can slow down or speed up the motor's rotation. This method is simple and cost-effective but may not be suitable for all applications as it affects the torque as well.
Pulse Width Modulation (PWM): PWM is a popular technique for precise speed control of DC motors. It involves rapidly switching the voltage on and off to the motor at varying duty cycles. The average voltage applied determines the speed. PWM controllers are widely used in robotics, electronics, and other applications where precise speed control is essential.
Rheostatic Control: In some cases, a rheostat (variable resistor) can be used to control the speed of a DC motor. By adjusting the resistance in the circuit, you can regulate the current flowing through the motor, thus controlling its speed. However, this method is inefficient and generates a lot of heat.
H-Bridge Configuration: H-bridge circuits are often used for bidirectional control of DC motors. By changing the polarity of the voltage applied to the motor terminals, you can change the motor's direction and speed. H-bridge drivers are commonly used in applications like electric vehicles and robotics.
Electronic Speed Controllers (ESCs): ESCs are specialized devices used in RC (Remote Control) applications and drones to control the speed of DC brushless motors. They utilize advanced electronics to adjust motor speed based on user input or feedback from sensors.
Feedback Control: In more advanced systems, feedback mechanisms like encoders or tachometers can be employed. These sensors provide real-time data on the motor's speed, allowing for precise and closed-loop control.
Microcontroller-Based Control: Microcontrollers and microprocessors are often used for precise speed control in complex applications. These systems can implement various control algorithms to maintain a constant speed even under changing load conditions.
Variable Frequency Drives (VFDs): In industrial applications, DC motors are sometimes controlled by VFDs, which can convert AC power to DC power to control the motor's speed and torque. VFDs are highly versatile and commonly used in applications like conveyor systems and pumps.
Torque-Speed Curve: The speed of a DC motor is often inversely proportional to the load or torque applied. Understanding the torque-speed curve of a DC motor is essential for proper speed control and ensuring it can handle the required load.
In summary, speed control of DC motors is crucial in a wide range of applications, from simple home improvement projects to complex industrial processes. The method chosen for speed control depends on factors such as the required precision, efficiency, and the specific needs of the application. Various techniques, from basic voltage control to advanced microcontroller-based systems, are available to achieve the desired motor speed control.
Below you can find our editor's choice of the best speed control of dc motor on the market
7-80V PWM DC Motor Speed Controller Switch 30A,Motor Speed Control Regulator
Product description
7-80V PWM DC Motor Speed Controller Switch 30A,Motor Speed Control Regulator
Applicable voltage range: DC 7-80V (80V is the maximum working voltage application, please leave allowance)
Drive current: 30A max. (operating voltage relatively high current must be reduced with power use)
Control power: Jianyi 12V 300W within 24V 400W 48V 450W within 72V 500W
Duty cycle adjustable range: about 1%-100%
PWM frequency: 12KHZ
Shell Size: 85MM*59mm*34MM Adjust Potentiometer Hole 8MM Button Projection Height 16MM
Weight: 145g
12-Month Warranty，We value your shopping experience and strive to offer a high-quality product and service. If you're not completely satisfied, you can ask for a replacement or full refund.
- 1️⃣ 7-80V PWM DC Motor Speed Controller Switch 30A,Motor Speed Control Regulator;PWM frequency: 12KHZ;
- 2️⃣ Wide voltage 7-80V high current 30A Design Wide range of applications, on-board switch with operation Stop brake function, adjustable potentiometer soft cable can be separated Line length 30CM
- 3️⃣Circuit optimization design Wide range of duty cycle adjustment, smooth motor without vibration, no vibration, with power indication, stable circuit design for long working hours.
- 4️⃣Adopt imported high-voltage MOS tube, three high-voltage 100V high-frequency resistance capacitors, and fuses for braking. The parameters are not easy to heat and easy to replace. The standard aluminum housing protects the internal circuits and components for long-term durability.
- 5️⃣Package Contents:1 x 7-80V PWM DC Motor Speed Controller Switch 30A;Amazon satisfied customer service & fast ship
User questions & answers
| Question: | what value is the potentiometer |
| Answer: | Pretty sure he means in ohms, not dollars, lol |
| Question: | What is the efficiency |
| Answer: | First off I had to purchase two because the first one looked like it was returned and did not work. The second one I purchased worked great. I used it to convert my sons power wheel from the 6v battery to a 12v battery. I did take it to the 30amp mark just to see if it would hold up and it did well. |
PWM DC Motor Speed Controller, DC10-55V/60A Stepless DC Motor Speed Controller with Forward-Brake-Reverse Switch Adjustable Potentiometer and LED Display
Product description
Specifications
Size: 5.03 x 3.85 x 0.74 inch/ 128 x 98 x 19mm
Forward & Reverse: Support
Supply/load voltage: DC 10-55V
Maximum current: 60A
Continuous Current: 40A
PWM frequency: 15KHZ
Speed Modulation Range: 0 ~ 100%
Speed Control Type: Current modulation by potentiometer (with switch)
Support Forward Reverse Rotation Control: Yes, by Forward-Brake-Reverse Switch
Note:
The digital display is the percentage of motor full speed 0-100 actual speed of non-motor
The input voltage must be divided into positive and negative
The input voltage should be equal to the rated voltage of the motor within DC 10-55V
- 【Regulate Range】 Input supply voltage: DC 10V-55V; Maximum current: 60A; Continuous current: 40A; Speed range: 0-100% ; Control frequency: 15KHZ
- 【Switch Function】The PWM DC motor speed controller come with switch function. High power speed controller switch which is much more adaptable and conveniently change the motor direction.
- 【Excellent Heat Dissipation Performance】 The enclosure of the speed controller for motor is an aluminum enclosure. Aluminum shell is very strong to prevent damage, holes on its side and top which are helpful for heat dissipation.
- 【Easy to Operate】The stepless motor controller has a simple potentiometer knob adjusts the motor speed from 0% ~ 100% smoothly. And with LED display is accurate to show 0 ~ 100% of the motor speed. The input voltage of PWM motor speed controller should be equal to the rated voltage of the motor within 10-55V,or it will be burnt.
- 【Application】 The dc motor driver can be used to brush motor speed regulation, light dimming regulation in the DC circuit.Note: The motor cannot be used in electric vehicles.
User questions & answers
| Question: | Hi can I control 10” automotive fan 12v running at 1750rpm to 500rpm Safley the fan uses 8a 12v ? Tnx |
| Answer: | TRUE! I know this is old but I want other people to know! Ours after 6 months went off and we had to permanently disable it. It would not stop going off. Most expensive one time use thing I have ever used! |
| Question: | Will this work for a 7x12 550w mini lathe control board |
| Answer: | Don't push the tab. Instead, return the alarm and get a different model. This model is prone to false alarms, as I learned when I called Kidde customer service. |
| Question: | Description is in Chinese, what's the English word please |
| Answer: | Depends on how you want to wire it and if you have a charged field from the battery. I presume your getting rid of(or is broken) the current throttle mechanism or you will stay on full power and use this control remotely. Good luck, I burned out 2 of these. Not a fan, but no other substitute found. |
| Question: | Can I connect a Dewalt battery pack to this |
| Answer: | Yes, there is a dial that ranges from 0-100%. So if the dial was set in the middle it would be at 50%. And stays in the same spot when you turn it back on and off. That it was set at. |
Onyehn DC Motor PWM Speed Controller3V 6V 12V 24V 35V Speed Control Switch Mini LED Dimmer 5A 90W(Pack of 2pcs)
Product description
Operating Voltage: DC3V-35V
Control Power: 90W (maximum)
Quiescent Current: 0.015A (standby)
PWM Duty Cycle: 1% -100%
PWM Frequency: 10khz
Size: 24*30mm/0.94*1.18"
- Mini Style DC Motor Speed Regulator controls the speed of a DC motor by adjusting Pulse-Width-Modulated (PWM).
- Mini DC 6-35V 5A PWM Motor Speed Controller. Wide voltage DC motor speed controller, PWM duty cycle: 1% -100%.
- Default disconnection of short circuit point, suitable for 5-35V input. Manually connect the short circuit point according your needs, suitable for low power 3-15v input.
- By screwing the potentiometer, you can turn off power supply output. High voltage and high current resettable fuse, overcurrent automatic disconnection, power off for cooling for a few seconds fuses automatic recovery.
- It is not only to use for dc motor controls of the speed,but also to use for adjust the LED light.
User questions & answers
| Question: | How far does the potentiometer have to be turned to go from 1 -100%? Full 360 degrees |
| Answer: | Pretty sure China. |
| Question: | Does it support 24vdc supply ? pcb shows 3-15v only |
| Answer: | Yes |
| Question: | Would this work as a Dimmer switch for led light on a RV |
| Answer: | yes |
| Question: | Does it work on 3w 12v led as dimmer switch |
| Answer: | sensitivity... the kitchen will allow you to burn toast a little while the hallway will start screaming as soon as it sees smoke |
KB Electronics KBMD-240D (9370D) Multi-Drive Variable Speed DC Motor Control, NEMA-1
KB ELECTRONICS
Product description
THIS DRIVE WILL NOT OPERATE WITHOUT A PLUG-IN HORSEPOWER RESISTOR. Horsepower resistors are available for purchase. KBMD-240D Multi-Drive - NEMA-1 SCR Drive The Model KBMD-240D, also called Multi Drive, is a packaged SCR drive in a NEMA-1 enclosure. It utilizes the KBMM speed control for its electronics. The Multi-Drive is rugged and compact in size. It handles both 115 and 230VAC line inputs by setting the built-in Dual Voltage Switch. In addition, the single model can be used on a wide range of motor horsepower by inserting the appropriate Plug-in Horsepower Resistor. The Auxiliary Heat sink (optional) increases the rating of the basic unit. An optional Forward Brake-Reverse Switch Kit is also available.
User questions & answers
| Question: | I have a 2 hp 220 volt shunt wound 8 amp dc motor. Will this unit work and if so what resistor should I order |
| Answer: | In my situation, the unit plugged into the existing hardware system with no problem or modification. If it does not as in your case, I would look carefully at the directions or call the manufacturer. |
| Question: | I purchased the kbmb 240, controller, which hp resistor do i need for a 180 vdc, 1hp motor? is there a part number for line fuses and reversing switch |
| Answer: | No it is not. Lowes sells some that are z wave compatible. They are called ZSMOKE and ZCOMBO. |
| Question: | I have vibration plate zen pro tvr 5910 with 100v-120v, dc motor 1.0hp what plug in horsepower resistor do i need |
| Answer: | The SA521CN replaces one hard wired unit to provide the wireless connection for add-on wireless units such as the SA500. Example: My alarm system had three hard wired units. Replaced one with the 521. I then added four more units to the system wirelessly with SA500 units. Now have seven interconnected detectors in all without running any additional wires. |
| Question: | Are the Horse power resistors included? What is the price of the heat sink |
| Answer: | The BRK wireless smoke detector also has the hard-wire connections to interface with both wired and wireless models. Once installed, two wireless units connected everything together with my non-wireless BRK SC7010Bs in adjacent structures. It was a great solution for my detached garage. With the exception of being wireless, they function in the system like the other BRK models. (Note: Use only compatible models of the same brand) One can call First Alert to check on the compatibility of their various models. |
QWORK AC 110V 400W Knob Motor Speed Controller DC 0-90V Variable Adjustable Speed Regulator for 90V DC Motors
Product description
Feature:
Our speed controller can only be used for 90V DC motors.
With our compact design and high precision, it reduces power consumption.
Package:
1 x Motor Speed Controller
- Fitting - Our speed controller can only be used for 90V DC motors.
- Low Power Consumption - With our compact design and high precision, it reduces power consumption.
- Speed Control - Due to the adjustable knob, it can adjust the voltage freely, convenient and simple.
- Widely Usage - It can be used for speed governing device drivers. It fits for many areas, such as packing, printing, electronics, clothing machinery, and etc.
- 100% Satisfied Service - Enjoy a smooth & frustration-free experience with our 100% Satisfied Service in one Month!
User questions & answers
| Question: | Will this work for a 110v 3/4hp 4.5amp 2500rpm dc motor |
| Answer: | This is a photo alarm. Your old one was an ion one. Different models respond better to different situations. Best to have both or a combination of both. http://www.nfpa.org/safety-information/for-consumers/fire-and-safety-equipment/smoke-alarms/ionization-vs-photoelectric |
| Question: | is this for brushless motor or brush |
| Answer: | This smoke detector is photo-electric not ionizing. Someone else can probably give you a more precise answer but I'd figure it's about the same amount of radiation as the dirt outside. |
| Question: | How many watts can this handle |
| Answer: | Dear Mr. Priestley, The detector comes with a mounting bracket and screws with anchors. If you are not mounting the detector into a wooden surface or a wooden stud underneath drywall then you would have to use a sheetrock anchor to mount the receiving bracket for the detector. All of that is provided and once the mounting bracket is secure in the wall or ceiling, simply align the detector tabs with the mounting bracket receivers, press in and give about a 1/4" rotation on the detector and it should hold fast. |
| Question: | Sirve para los motores de las cintas de correr? arriba dice motores dc. Pero quiero confirmar |
| Answer: | The alarm works perfectly |
HiLetgo 12V~40V 10A PWM DC Motor Speed Control Switch Controller Voltage Regulator Dimmer for Arduino
HiLetgo
Product description
Important:
This is DC motor controller, please make sure the input voltage is from DC power, do not use home 220V AC, otherwise it will burn out.
The DC Motor Speed Controller allows controlling direction of a DC motor using a Pulse-Width-Modulated (PWM) DC voltage with a Duty Cycle fully adjustable from 10%-100%. The motor speed controller can provide a continuous current of 8A to your DC motor or other DC load.
Specification:
100% brand new and high quality.
Input supply voltage: DC 12V-40V
The maximum output power: 400W
The maximum continuous output current :8A
The overload and short circuit protecting current is 10A
Static Current:0.02 A ( Standby )
PWM frequency: 13kHz
Duty Cycle adjustable: 10%-100%
The operation environment temperature:-20℃-125℃
(L*W*H): 6cm x 5.5cm x 2.8cm/2.36"x 2.16"x1.10"(approx)
Net weight: 69g
NOTE:This can NOT be used to the BRUSHLESS motor. The controller is NOT reverse-polarity protected and will be damaged if connect the supply voltage with wrong polarity. Double check all connections before applying power and always turn off the power supply before making any wiring changes.
Package Included：
1*12V-40V 10A PWM DC Motor Speed Controller CVT Speed Switch Module
User questions & answers
| Question: | Without using the 3 pin port, should i be able to check the output terminals with a multimeter after connecting a 12v sla battery and turning the pot |
| Answer: | I have 4 different Kiddie alarms hardwired together and they work fine. One photo Electric, two ionization and one photo and ionization combo. I don't remember the exact model number. The ones I took out were 10 year old kiddie and used existing wiring and circuits. |
| Question: | Is this a discrete controller or continuous |
| Answer: | I wish! I had 120 in an apartment building and couldn't even begin to tell you of the countless false alarms we've had since they were installed in 2010. I never found one to mix and match with these. If it is hooked into a relay check that too as sometimes that is the problem. |
| Question: | Write up states "allows controlling direction of a dc motor". is this correct? does it allow variable pwm current control of the motor ccw & cw |
| Answer: | No |
| Question: | How much heat does this generate, as im putting it in a small plastic project box |
| Answer: | vitowell, asin |
DC Motor Speed Controller,Hima Brush Motor Driver Controls Module DC 9V-60V 12V 24V 36V 48V 60V Motor Pulse Width Modulator Regulator 20A 1200W PWM Monitor Dimmer Governor with Switch & Knob
Product description
Hima Motor Speed Controller technical parameters
Includes: 1x DC motor controller
Note: The motor cannot be used in electric vehicles.
Input voltage range: DC 9-60V output voltage
Linear load output current: 0-20A
Continuous power: 1200W
Speed control mode: potentiometer (linear)
Speed range: 0-100%
Input current: requires more current than the motor
Continuous current: within 18A
The input voltage should be equal to the rated voltage of the motor.
Control frequency: 25KHz clockwise / counterclockwise rotation; support Fit motor:
DC brush size: 92x52x36mm
Product net weight: 155 grams
Potentiometer mounting hole diameter: 7mm
Wiring connection: thick red line: power +, thick black line: power -, blue and green motor is not positive or negative
- Parameters: motor speed controller input voltage range is 9-60V, output current range is 0-20A, continuous power is 1200W.
- Application: the dc motor driver can be used to brush motor speed regulation, light dimming regulation in the DC circuit.Note: The motor cannot be used in electric vehicles.
- Speed Control: our motor control board can regulate motor speed by potentiometer; what's more, it support clockwise/anticlock-wise rotation adjustment.
- Easy Wiring: thick red wire for the positive of the power supply, and thick balck for the negative; thick blue wire for the motor positive, and the thick green for the motor negative.
- PWM: the advantage of using a pulse width modulation (PWM) method for dimming / speed regulation is that the energy of the power supply can be fully utilized and the circuit is highly efficient.
User questions & answers
| Question: | What is the lowest ms pulse this will generate |
| Answer: | The only difference between the two , is the voice alert. First Alert AC Hardwired Voice Alert Carbon Monoxide Alarm and Smoke Detector with Battery Back-Up . The SC7019B does not have the voice alert ; but everything else. They each have the same wire connect. Just remember the letters have a code meaning. S-smoke, C-carbon , B- battery back -up, V- voice alert. |
| Question: | What size hole is needed to mount the forward reverse switch |
| Answer: | In this hardwired design, they are interconnected to each other on your 120 volt house wiring system -- typically 14/3 Romex with ground -- black for power, white for neutral and red for the orange interconnection wire. The uninsulated bare ground wire is not used. This First Alert version does not use wi-fi or radio frequencies to talk to each other. Only the unit initiating the alarm speaks the programmed room name. The other interconnected units do not announce the room name; they only sound the alarm. It seems a little misleading to me from the First Alert description. I replaced 11 old units that were interconnected in my house with this design, and when one goes off, I have to run around the house listening for the unit speaking its room name to find the one that initiated the alarm. |
| Question: | Does it have a Soft start delay if left at 100% duty cycle, & power is turned on/off by separate power source |
| Answer: | In this hardwired design, only the one initiating the alarm speaks the programmed room name. The other interconnected units do not announce the room name; they only sound the alarm. It seems a little misleading to me from the First Alert description. I replaced 11 old units that were interconnected in my house with this design, and when one goes off, I have to run around the house listening for the unit speaking its room name to find the one that initiated the alarm. |
| Question: | i the toggle switch on a relay so the wire can be 100' or does all amps go through it? thus more awg ? we run a 8amp motor |
| Answer: | Only the one initiating the alarm speaks the programmed room name. The other interconnected units do not announce the room name; they only sound the alarm. It seems dumb, but I replaced 11 old units in my house with this design, and when one goes off, I have to run around the house listening for the unit speaking its room name to find the one that initiated the alarm. |
9-60V PWM DC Motor Speed Controller Switch 20A, Variable Speed Regulator Governor Switch with Speed Control Knob
Product description
9-60V PWM DC motor speed controller switch 20A, variable speed regulator governor switch with speed control knob
Specification:
Work voltage: DC 9V - 60V
Control power: recommended within 12V 300W within 24V 400W within 48V 450W
Max power: 1200W
Max current: 20A
Duty cycle adjustable: 0 to 100%
PWM frequency: 12 KHZ
Module size: 3.40 x 2.30 x 1.40 inch
Packages:
1 x DC motor speed controller
Warm tip:
1. DC power supply polarity can not be inversed, otherwise may destroy speeder.
2. If need the forward and reverse function, customer can connect the positive and negative switch.
3. Only suitable for DC motor speed control, not for AC power supply.
4. This product is DC brush motor speed controller, can not access AC power and drive brushless motor.
- 【PWM DC brushed motor speed controller】wide voltage: DC 9 - 60V, high current 20A, PWM frequency: 12 KHZ; Please note: this product is DC brush motor speed controller, can not access AC power and drive brushless motor
- 【Speed adjustment knob】the knob has a switch function, duty cycle adjustable: 0 to 100%, and it is noise-free when motor is at low speed
- 【Optimization design】aluminum housing as standard to protect internal circuits and components
- 【Features】high-efficiency low-resistance capacitors, automotive fuses, continuous duty, stable and durable
- 【Kit contains】1 x DC motor speed controller; Only suitable for DC motor speed control, not for AC power supply
SDTC Tech 6V-30V 8A DC Motor Speed Controller 6V 12V 24V PWM Stepless Speed Control Switch Adjustable Driver Regulator with Duty Cycle LED Digital Display & Knob
Product description
Name: DC 8A PWM Motor Speed Controller
Work Voltage: DC 6V - 30V
Rated Current: 6A
Max Current: 8A
Speed Range: 0% - 100%
PWM Frequency: 16kHz
Knob Potentiometer: Resistance B100K, Length 20cm, Trepanning 8mm
LED Display: 3-digit, "000" - "100", (For example displayed "033", it means the PWM output duty cycle is 33%)
Button Switch: Turn On or Off the controller board
Module Size: 79 *42 * 24mm
Note:
1. Do not reverse positive and negative to power controller, it will damage the module.
2. Before you attempting to wire the controller, make sure power is off.
Package Include:
1pcs DC Motor Speed Controller with LED Display
- DC PWM Motor Speed Controller, used for pump speed regulation, light dimming etc. by adjusting Pulse-Width-Modulated (PWM).
- Work Voltage: 6V - 30V, Rated Current: 6A, Max Current: 8A, Speed Range: 0% - 100%.
- LED display: displayed the duty cycle "000" - "100", it is helpful for positioning adjustment speed.
- With power switch, turn on or off the controller easily.
- Stepless Speed Control Switch adopts variable knob potentiometer, high efficiency, high torque, easily deliver 5A continuous current to your DC motor or other load.
User questions & answers
| Question: | Can you splice the wires and extend them to make a sort of wired remote control out of the switch and dial? would it work well with a 12v 6a dc motor |
| Answer: | Only the one initiating the alarm speaks the programmed room name. The other interconnected units do not announce the room name; they only sound the alarm. It seems dumb, but I replaced 11 old units in my house with this design, and when one goes off, I have to run around the house listening for the unit speaking its room name to find the one that initiated the alarm. |
LEDMOMO 1203BB 6V 12V 24V 3A 80W DC Motor Speed Controller (PWM) Adjustable Reversible Motor Driver Switch
Product description
Description
The 1203BB DC Motor Speed Regulator controls the speed of a DC motorby adjusting Pulse-Width-Modulated (PWM). It provides a continuous current of 3A to your DC motor or other DC load. Besides, the circuit also includes a 3A fuse. With reverse connection of power supply and control the forward or reverse direction and the stop of DC motor by switch.
Features
- Material: Metal.
- Size: 5 * 3.2 * 1.5cm.
- The switch cable length 15cm.
Operating instruction
Before you attempting to wire the controller, make sure that the power is off.
1. Connect wires refer to the wiring diagram.
2. Turn on the power, and adjust the potentiometer.
3. The LED indicates the power up and the speed of motor.
Warning: Do not reverse positive and negative power loads. This will damage the controller!
Package Including
1 * 1203BB 6V 12V 24V 3A 80W DC Motor Speed Controller (PWM) Adjustable Reversible Motor Driver Switch
- 1203BB DC Motor Speed Controller regulate the speed of the motor by adjusting Pulse-Width Modulation (PWM).
- Working Voltage: DC 6-24V. Maximum continuous output current : 3A. Maximum output power: 80W.
- The Motor Speed Controller built-in switch. You can control the forward or reverse direction and the stop of DC motor by the switch.
- The circuit built-in a 3A fuse. Make the use of this motor safer.
- Note! DC motor speed controller is connected to DC power supply. Never connect directly to household 220V AC power supply.
User questions & answers
| Question: | Before I return it: I'm using it to run a 10,000 rpm cooling fan. There does not seem a "middle ground" - only on and off |
| Answer: | Absolutely none; it is the best smoke alarm I have ever bought. I placed it in a 4-foot hallway between the kitchen and foyer. |
| Question: | Can it be powered by an adapter 12V 5A |
| Answer: | This is only a photo detector sensor. I bought one thinking it had both given their "sees both fast and slow burning" but discovered otherwise and sent it back. I ended up replacing it with a First Alert SA320CN (dual sensor) which rates high by consumer reports and have had no issues. |
| Question: | What is the PWM frequency and is the frequency adjustable |
| Answer: | The red wire pictured is to interconnect the alarms throughout the house. If you only have two wires (probably white-neutral and black-hot) it is not interconnected. So if you wanted to upgrade to an interconnected for safety or code reasons you may want to consider ones that are wirelessly interconnected, although I don't have any personal experience if they are problematic. Or you could simply go with a stand alone plug in. If you read my review, I would highly recommend against the Kiddie p12040 regardless. |
| Question: | Can you connect 2 motors (as long as you are under 3A), or will there be a problem? Please answer if you are the manufacturer or know for sure |
| Answer: | I cannot post a photo, but if you are replacing a Kidde with a kidde, the harness hasn't changed. |
uniquegoods 6V 12V 24V Digital Display LED DC Motor Speed Controller PWM Stepless Speed Control Switch HHO Driver - Black CCM5D
Product description
Features:
CCM5D DC Motor Speed Regulator controls the speed of a DC motor by adjusting Pulse-Width-Modulated (PWM).
Large 0.56 inch 3-digit LED display numbers allow viewing under the most adverse conditions.
The display range of 3-digit LED display is ”000”-“100”. (For example, displayed ”066” as the picture 1, it means that the PWM output duty cycle is 66%.)
Adjustable speed range is 0%-100%.
Suitable for the DC motor (or DC load) within 5A, Peak current 8A.
Incorporate a push key. Push closed, and then push open.
Operating instruction:
Before you attempting to wire the controller, make sure power is off.
WARNING: DO NOT REVERSE POSTIVE AND NEGATIVE POWER LOADS.THIS WILL DAMAGE THE CONTROLLER.
TO CHANGE MOTOR DIRECTION, INTERCHANGE THE POSITIVE AND NEGATIVE WIRES OF MOTOR.
1. Connect wires refer to the “wiring diagram” (NO.5 picture).
2. Turn on the power, and adjust the potentiometer.
3. The LED display displays the PWM output duty cycle.
4. Push the key, the controller closed, push it again, the controller open.
Package Including:
1 x DC Motor Speed Controller
User questions & answers
| Question: | I am a neophyte here. is there anyway the pwm display can be calculated to give you an estimate of rpm |
| Answer: | Hello. Press the test button in the center. The alarm will test itself and the sensors and the electronics. It will then give the alert for smoke to make sure it sounds right. It should be 3 longs beeps, followed by "Fire! FIre!" and then three long beeps. It will then give the alert for carbon monoxide to make sure it sounds right. It should be 4 quick beeps, followed by "Warning! Carbon Monoxide", followed by four quick beeps. Anything else could be an error of the alarm. The alarm is always testing the air for carbon monoxide and for smoke and there is no button needed to make it do this testing. |
| Question: | Can 2 units be wired in series? What would happen |
| Answer: | Press the self test if it wont test make sure you pulled the plastic tape out and it must be installed on the base it came with or it wont work. |
| Question: | Do the switch and pot come with it? Already clicked "buy" so hopefully its included |
| Answer: | The photoelectric sensor is more sensitive to the smoldering, slow-starting fires because it can better detect the larger smoke particles that are a part of these type of fires. Definitely have one near your kitchen or any place which could easily catch fire. |
| Question: | Does this have an analog input besides the pot |
| Answer: | That would be an unlikely place to locate the smoke alarm; the sensor might be affected. |
Sydien DC6-60V 6V 12V 24V 48V 30A PWM DC Motor Speed Controller, Stepless Speed Regulation Start Stop Switch with Digital Display
Product description
Product Specifications
Product Name: Digital Display PWM Speed Controller.
Material: Circuit Board.
Model: QW21.
Input Supply Voltage: DC 6V-60V.
Output Current: 0-30A.
Persistent Current: 20A.
Output Voltage: Linearity Under Load.
Speed Range: 0-100%.
Speed Control Type: Regulating Flow.
Speed Regulation Method: Potentiometer.
Connection Type: Barrier Terminal.
PWM frequency: 15KHZ.
Panel Dimensions: 96mm*61mm*34mm/ 3.8"*2.4"*1.3" (L*W*H).
Knob Wire Length: 18cm.
Package Content: 1 Pcs.
NOTICE
1. Digital display is a percentage of actual speed to maximum speed, not the actual speed.
2. The input voltage must be distinguished between positive and negative poles.
3. 110V household electricity cannot be input.
4. The input voltage must be equal to the rated voltage of the motor within the range of 6-60V.
If you have any problems, we are very willing to solve the problems for you.♥
- Package Content: 1 Pcs x Digital Display PWM Speed Controller; Model: QW21.
- Input Supply Voltage: DC 6V-60V; Output Current: 0-30A; Persistent Current: 20A; PWM Frequency: 15KHZ; Speed Regulation: 0~100%.
- Designed with a digital display that shows the rate in percentage of actual speed to maximum speed. Digital display is a percentage of actual speed to maximum speed, not the actual speed.
- This motor speed controller uses screw terminals for convenient and quick wiring. Comes with a momentary start/stop switch and a speed control potentiometer.
- Please Note: 110V household electricity cannot be input. The input voltage must be equal to the rated voltage of the motor within the range of 6-60V.
User questions & answers
| Question: | can you add limit switches |
| Answer: | Hello, electronic products should not be changed. Use the specified voltage, |
| Question: | Would this be suitable for a 24v 280 watt dc motor |
| Answer: | According to the specifications the controller will handle 30 amps. So; 24vdc @280 watts = 12 amps, so yea it will run the motor. How ever I'm working off the info provided. You need to know more ie: stall amps, max vin min vin and load . Hope this helps |
| Question: | Could this be used to control a salt spreader |
| Answer: | Hi,this item can use to control a salt spreader |
| Question: | Hello,this item does not come with a manual. How can i adjust the speed or setup the menu |
| Answer: | No manual. There is no menu set up. Only numbers 01-100. Speed is adjusted with a knob. Green button is on/off switch. Works great for my salt spreader. I built my controller into the dash board and it looks slick. Easy to wire up. Neg/pos to/from your device and neg/pos to/from battery. Great product, easy to use. |
Onyehn 2Pcs 1.8v 3v 5v 6v 7.2v 12v 2A 30W Low Voltage DC Motor Speed Controller PWM 1803BK 1803B Adjustable Driver Switch 2 Pack
Product description
Specifications:
Input supply voltage:1.8V-15VDC
The max output power:30W
The max continuous output current :2A
Duty Cycle adjustable: 0%-100%
Size: approx. 32*32*15mm/1.25*1.25*0.59''
Net weight: approx. 14g
Note:
DC motor speed regulator DC power supply, do not be directly connected to household 220V AC.
Please allow 1-3mm differs due to manual measurement.
Connect a voltage of 1.8V-15V DC to the circuit making sure of the correct polarity of the connection. Note that the voltage applied to the motor will be supply voltage applied to the circuit. It is recommended to add an appropriately rated fuse in line with the positive supply in order to protect the circuit from any possible short circuits.
You can now control the speed of the motor through potentiometer. Important Notes： An appropriately rated fuse (rated a little higher than the maximum current you expect to draw) is recommended to ensure safe operation. The controller is safe with a self-recovery fuse 2A. It will be damaged if connect the supply voltage with wrong polarity. Double check all connections before applying power and always turn off the power supply before making any wiring changes
Due to different batches of products, backplane style and cap color are shipped randomly
- This Brand New 1803BK DC Motor Speed Controller allows controlling the direction of a DC the motor using a Pulse-Width-Modulated (PWM) DC voltage with a Duty Cycle fully the product adjust from 0%-100%.
- With a self-recovery fuse 2A and a Power-On LED light.
- This is a speed governor with a maximum current of 2A. If the continuous current is greater than 0.5A, the 775 motor and the stroller motor will not move. Don't buy it wrong. It is not recommended to supply power greater than 12V, such as 12V lead-acid batteries, which may cause damage to the governor
- If the current is too large, it will be automatically disconnected, and the fuse will automatically recover after cooling.
- PWM DC motor speed controller with switch function.
User questions & answers
| Question: | Will it burn the controller if the dc fan is rated 6-12vdc, 0.9amps, 10watts? is it suitable for a fan with this rating |
| Answer: | Yes! |
| Question: | i have a .31amp cpu fan draw 12vdc. can i hook 2 fans to one controller or should i only do 1 controller per fan? what is the ohms on these |
| Answer: | I currently have 4, 0.2 amp, CPU fans connected to 1 controller. You should be fine with 2, 0.31 amp, fans on 1 controller. |
| Question: | Can i use this with a seaflo dc12v 2.5am in line blower |
| Answer: | I use it with 12volt power supply and a fan . |
| Question: | Does this have on/off capability |
| Answer: | yes,it has off on capability |
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