In a simple application where you need to switch a signal line on and off, the Signal Relay Phidget is a quick and easy solution. With a double-pole double-throw style relay, it can switch up to two signals of 60 watts of DC power or 125 VA of AC power each. By nature, this relay Phidget is isolated from load to control, so a power surge in the load side will not damage your VINT Hub or computer.
For DC applications, you can switch a circuit of up to 120V or 2A, as long as the switching power is 60W or less (For example, 30V/2A or 120V/0.5A). Similarly, you can switch up to 2A or 240V AC, to a maximum of 125 VA of power (For example, 62V/2A or 240V/0.5A).
This relay is specifically intended to switch signals. If you need a relay that can switch power to a device, take a look at the more powerful relay boards on the "Other Relays" tab.
|Controlled By||Digital Output|
|Switching Speed Max||20 cpm|
|Dielectric Strength||1.5 kV AC|
|Contact Resistance Max||100 mΩ|
|Load Current Min||10 μA|
|Turn-on Time Max||7 ms|
|Turn-off Time Max||4 ms|
|Number of Relays||1|
|Load Voltage Max (DC)||120 V DC|
|Load Voltage Max (AC)||240 V AC|
|Load Current Max (DC)||2 A|
|Load Current Max (AC)||2 A|
|Switching Power Max (Real)||60 W|
|Switching Power Max (Apparent)||125 VA|
|Current Consumption Min||0 A|
|Current Consumption Max||20 mA|
|Recommended Wire Size||16 - 26 AWG|
|Operating Temperature Min||-40 °C|
|Operating Temperature Max||85 °C|
|Date||Board Revision||Device Version||Comment|
|June 2017||0||N/A||Product Release|
Welcome to the REL2002 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 REL2002!
In order to demonstrate the functionality of the REL2002, 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 REL2002.
After plugging the REL2002 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 a Digital Output object 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 REL2002 uses a double-pole double-throw switch, meaning it is capable of switching two circuits at once between two terminals each, as illustrated by the image on the right.
A relay is an electrically-controlled switch. For more information about how mechanical relays work and how to use them, check the Mechanical Relay Primer.
In addition to plugging directly into VINT ports, the REL2002 relay can be used with Interface Kits that have a Digital Output and 5V supply (like the 1018).
To connect the REL2002 to the Interface Kit, cut one end off a Phidget Cable. Connect the red and black wires to the 5V and G terminals of the Interface Kit, respectively, and the white wire to the OUTPUT terminal you want to control the relay. Plug the end that still has a connector into the REL2002.
To control the relay, open the DigitalOutput object for the channel the white wire is connected to. Setting the output state TRUE or FALSE will set the state of the relay.
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:
|Image||Part Number||Price||Number of VINT Ports|
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||Load Current Max (AC)||Load Voltage Max (AC)||Load Current Max (DC)||Load Voltage Max (DC)|
|1014_2||$60.00||12 A||277 V AC||7 A||* 30 V DC|
|1017_1||$90.00||2 A||250 V AC||2 A||* 120 V DC|
|3051_1||$19.00||12 A||277 V AC||7 A||* 30 V DC|
|3052_1||$15.00||2.5 A||28 V AC||2.5 A||40 V DC|
|3053_0||$30.00||(per channel) 9 A||28 V AC||(per channel) 9 A||40 V DC|
|3054_0||$10.00||500 mA||28 V AC||500 mA||40 V DC|
|REL1000_0||$30.00||12 A||277 V AC||7 A||* 30 V DC|
|REL1100_0||$25.00||—||—||8 A||30 V DC|
|REL1101_0||$50.00||—||—||8 A||30 V DC|
|REL2001_0||$10.00||12 A||277 V AC||7 A||* 30 V DC|
|REL2002_0||$12.00||2 A||240 V AC||2 A||120 V DC|
For applications with a higher switching power, Hockey Puck style relays are the more robust choice: