Get moving with this powerful Bipolar Stepper Phidget. With a maximum power supply of 30V, it can provide up to 4A of current to each stepper coil. The result is that you can control the position, velocity and acceleration of one large bipolar stepper using a port on your VINT Hub (See the "Compatible Products" tab for a list of hubs). Steppers are especially popular in applications where accurate positioning is important.
The Stepper Phidget comes with a number of safety features, since motors have a reputation of damaging unprotected circuits with current spikes when a motor stalls or changes direction under heavy load. There's a fuse socket with a 5A automotive fuse to protect your Phidget in just such an occasion, and the power terminals are polarity protected in case the power supply gets wired up backwards. The VINT port on this Phidget is isolated from the power circuit, so you don't have to worry about damaging your hub or computer if something goes wrong. Ensure that this Phidget is in a well-ventilated area if you plan on running it close to maximum specifications.
For power-conscious users, we also allow for separate control over the current limit and the holding current limit. If you know your motor will be stationary for long periods of time, but still needs a small amount of holding torque to maintain its position, you can set the holding current appropriately without interfering with the running current limit.
|Make sure the power supply is unplugged before attaching or removing wires from the terminal blocks. Failure to do so could cause permanent damage to the Phidget.|
|Motor Type||Bipolar Stepper|
|Number of Motor Ports||1|
|Motor Position Resolution||1⁄16 Step (40-Bit Signed)|
|Position Max||± 1E+15 1/16 steps|
|Stepper Velocity Resolution||1 1/16 steps/sec|
|Stepper Velocity Max||115000 1/16 steps/sec|
|Stepper Acceleration Resolution||1 1/16 steps/sec²|
|Stepper Acceleration Min||2 1/16 steps/sec²|
|Stepper Acceleration Max||1E+07 1/16 steps/sec²|
|Sampling Interval Min||100 ms/sample|
|Sampling Interval Max||60 s/sample|
|Available Current per Coil Max||4 A|
|Supply Voltage Min||10 V DC|
|Supply Voltage Max||30 V DC|
|Current Consumption Min||50 mA|
|Current Consumption Max||7 A|
|Current Consumption Min (VINT Port)||500 μA|
|Current Consumption Max (VINT Port)||1 mA|
|Quiescent Power Consumption Max||* 200 mW|
|Recommended Wire Size||16 - 26 AWG|
|Operating Temperature Min||-20 °C|
|Operating Temperature Max||85 °C|
* Power consumption varies based on supply power. See the technical section of the User Guide for details.
|Bipolar Stepper Controller||Stepper||0|
|Stepper||Visual Basic .NET||Windows||Download|
|Date||Board Revision||Device Version||Comment|
|August 2017||0||100||Product Release|
Welcome to the STC1000 user guide! In order to get started, make sure you have the following hardware on hand:
Next, you will need to connect the pieces:
Now that you have everything together, let's start using the STC1000!
In order to demonstrate the functionality of the STC1000, the Phidget Control Panel running on a Windows machine will be used.
The Phidget Control Panel is available for use on both macOS and Windows machines. If you would like to follow along, first take a look at the getting started guide for your operating system:
Linux users can follow the getting started with Linux guide and continue reading here for more information about the STC1000.
After plugging the STC1000 into your computer and opening the Phidget Control Panel, you will see something like this:
The Phidget Control Panel will list all connected Phidgets and associated objects, as well as the following information:
The Phidget Control Panel can also be used to test your device. Double-clicking on an object will open an example.
Double-click on the Stepper object, labelled Stepper Phidget, in order to run the example:
General information about the selected object will be displayed at the top of the window. You can also experiment with the following functionality:
The quiescent (idle) power consumption of the STC1000 varies depending on the amount of voltage it's supplied.
For more information, have a look at the Stepper Motor and Controller Primer.
Using motor controllers with large motors can pose a risk for your power supply. If your supply does not have protective features built-in, you can use a Power Guard Phidget to prevent damage from power spikes from back EMF that is generated when motors brake or change direction. We recommend that you use the SAF2000 for any motor with a coil current between 1.5 and 5 amperes, and the SAF1000 for motors above 5A.
The STC1000 can control both unipolar and bipolar motors, but in almost all cases you're better off with a bipolar motor due to their increased power and more precise step angles. If you care about torque, large motors with high gear ratios are your best bet. If you car about speed, motors with no gearbox and high step angles are better. If you want precision, steppers without gearboxes and low step angles are best because while gearboxes do result in smaller steps, they also introduce a flat 1-3 degrees of positional error due to backlash in the gears.
|Product||Motor Properties||Electrical Properties||Physical Properties||Gearbox Properties|
|Image||Part Number||Price||Step Angle||Rated Torque||Maximum Speed (w/1067 Motor Controller)||Recommended Voltage||Shaft Diameter||Weight||Gear Ratio|
|3304_0||$15.00||3 3⁄4°||590 g·cm||4105 RPM||12 V DC||5 mm||171 g||—|
|3320_0||$16.00||1.8°||520 g·cm||426 RPM||12 V DC||5 mm||111.4 g||—|
|3321_0||$36.00||0.067°||14 kg·cm||120 RPM||12 V DC||6 mm||217.5 g||26 103⁄121 : 1|
|3322_0||$38.00||0.018°||32 kg·cm||35 RPM||12 V DC||6 mm||243.6 g||99 1044⁄2057 : 1|
|3323_0||$16.00||1.8°||1.2 kg·cm||2340 RPM||12 V DC||5 mm||200 g||—|
|3324_0||$16.00||1.8°||3.3 kg·cm||4130 RPM||12 V DC||5 mm||289 g||—|
|3325_0||$40.00||0.35°||18 kg·cm||904 RPM||12 V DC||8 mm||457 g||5 2⁄11 : 1|
|3326_0||$42.00||0.13°||30 kg·cm||295 RPM||12 V DC||8 mm||502 g||13 212⁄289 : 1|
|3327_0||$44.00||0.067°||30 kg·cm||174 RPM||12 V DC||8 mm||503 g||26 103⁄121 : 1|
|3328_0||$46.00||0.035°||48 kg·cm||63 RPM||12 V DC||8 mm||564 g||50 4397⁄4913 : 1|
|3329_0||$48.00||0.018°||48 kg·cm||34 RPM||12 V DC||8 mm||564 g||99 1044⁄2057 : 1|
|3330_0||$28.00||0.9°||11.2 kg·cm||2250 RPM||12 V DC||1⁄4″||695 g||—|
|3331_0||$20.00||1.8°||11 kg·cm||3000 RPM||12 V DC||1⁄4″||686 g||—|
|3332_0||$70.00||0.42°||46.6 kg·cm||375 RPM||12 V DC||12 mm||1.2 kg||4 1⁄4 : 1|
|3333_0||$72.00||0.12°||150 kg·cm||116 RPM||12 V DC||12 mm||1.3 kg||15 3⁄10 : 1|
|3334_0||$74.00||0.023°||240 kg·cm||25 RPM||12 V DC||12 mm||1.5 kg||76 49⁄64 : 1|
|3335_0||$60.00||1.8°||30 kg·cm||200 RPM||30 V DC||12 mm||1.8 kg||—|
|3336_0||$80.00||1.8°||106 kg·cm||1500 RPM||30 V DC||5⁄8″||5.2 kg||—|
|3340_0||$20.00||0.9°||3.3 kg·cm||2344 RPM||12 V DC||5 mm||288 g||—|
This Phidget is a smart device that must be controlled by a VINT Hub. For more information about VINT, have a look at the VINT Primer. You can use a Phidget Cable to simply and easily connect the two devices. Here's a list of all of the different VINT Hubs currently available:
Use a Phidget cable to connect this device to the hub. You can solder multiple cables together in order to make even longer Phidget cables, but you should be aware of the effects of having long wires in your system.
|Image||Part Number||Price||Cable Length|
This Phidget requires a power supply between 10 and 30V DC. We recommend that you use a 12V DC power supply for small steppers and a 24V DC supply for larger ones. If you're not sure, check the data sheet for your motor for the recommended power supply voltage (not to be confused with the coil voltage, which is usually much lower). For best results, we recommend getting a 5 amp supply. Select the power supply from the list below that matches your region's wall socket type.
|Product||Electrical Properties||Physical Properties|
|Image||Part Number||Price||Power Supply Voltage Min||Power Supply Voltage Max||Power Supply Current||Wall Plug Style|
|3022_0||$10.00||11.4 V DC||12.6 V DC||2 A||Australian|
|3023_1||$10.00||11.4 V DC||12.6 V DC||2 A||European|
|3024_1||$10.00||11.4 V DC||12.6 V DC||2 A||North American|
|3025_0||$10.00||11.4 V DC||12.6 V DC||2 A||British|
|3080_0||$25.00||11.4 V DC||12.6 V DC||5 A||Australian|
|3081_0||$25.00||11.4 V DC||12.6 V DC||5 A||European|
|3082_0||$25.00||11.4 V DC||12.6 V DC||5 A||North American|
|3083_0||$25.00||11.4 V DC||12.6 V DC||5 A||British|
|3084_0||$4.50||11.4 V DC||12.6 V DC||500 mA||European|
|3085_0||$4.50||11.4 V DC||12.6 V DC||500 mA||North American|
|3086_0||$10.00||22.8 V DC||25.2 V DC||1 A||North American|
You can use a pigtail wire if you want to avoid removing the barrel jack connector from your supply's cord:
|Image||Part Number||Price||Connector A||Connector B||Cable Length||Cable Gauge|
|3031_0||$2.75||Power Jack 5.5 x 2.1mm (Female)||2 Loose Wires||250 mm||20 AWG|