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Our 2-Channel MirW Solid-State Relay Controller acts as a receiver for several remote contact-closure transmitters to control the on-board relays. Up to 8 contact closure transmitters may be used to control the on-board relays at distances between 1 and 2 miles (line-of-sight). MirW controllers use Digi 900HP-S3B 900MHz long-range mesh networking communication modules. Devices work together to forward data to the receiving relay controller. This allows devices far out of range to hand data to another device that is within communications distance to the relay board. The wireless mesh networking topology is fully automatic and self adjusting. Mesh devices are always working together to get data to the destination relay receiver. Capable of 8 network hops, NCD mesh networking relay controllers will persistently seek a path, using nearby devices, to find a communications pathway to the receiving relay controller.
On-board solid-state relays are ideal for use in high reliability applications, such as motors, pumps, valves, solenoids, and lighting. Solid-State relays are of the SPST variety, suitable for controlling your choice of AC or DC loads, depending on the relay chosen during configuration. We can custom manufacture many options into this series of controllers, including advanced relay functionality such as relay timers, flashers, dead-man switches, watchdog timers, and much more. MirW controllers are among the most flexible line of relay controllers. Please let us know if we can customize this or any other product for your exact application. NCD is capable of providing customized mirror solutions for the most difficult of applications.
MirW Series Controllers allow switches in multiple remote locations to control relays installed in a single location. MirW series controllers accept contact closure inputs, and may be used to trigger many types of relays, from high-power solid state relays to low-power mechanical relays. MirW series controllers are sold in groups, including a specialized MirW relay controller and multiple remote transmitters. MirW packages are created on using our web site, and come pre-configured to work out of the box. A contact closure from any of the remotes will directly control a corresponding MirW relay.
MirW controllers are available in 1-Mile Point-to-Point and 2-Mile Mesh options. 1-Mile and 2-Mile options will not work together. 1-Mile Point-to-Point requires every transmitter to be within 1-Mile line-of-sight to the MirW Relay controller. The 2-Mile Mesh version requires a pathway no greater than 2-miles between the relay controller and the any of the transmitters. The 2-Mile Mesh version will pass data from transmitter to transmitter until it finds the receiver, so it is very important to have a pathway that never exceeds 2-Miles line-of-sight. 1-Mile option is faster than the 2-Mile option. Expect reaction time of the 1-Mile version in under a second. Expect reaction time of the 2-Mile version within 5 seconds, but may take up to 30 seconds depending on your installation. Multiple 1-Mile and 2-Mile sets of controllers can exist in the same location without significant interference. All MirW series controllers come with an external antenna.
MirW controllers are ready to work out of the box. However, users can configure MirW transmitters to send different relay control commands. MirW transmitters may be configured using a USB interface module (NCD Part Number ZUSB) and Base Station Software (https://ncd.io/start). Simply configure the MirW transmitter to send the relay control commands specific for your application or use the pre-configured relay control commands shipped with your controller. NCD Technical Support can assist you with advanced configuration requirements and build a package specialized for your specific needs.
Note: Data loss is possible for all wireless devices, MirW series controllers attempt to communicate your data up to 6 times and will not automatically retry after the 6 attempts have been made.
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Solid state relays are ideal for agricultural switching applications, or remotely located switching. SSRs are frequently chosen to control pumps, valves, solenoids, lights, and other high-reliability applications. NCD solid-state relay controllers do not include solid-state relays, but you will have the option to choose the type of solid state relays you require when customizing your product. This controller is designed specifically to fit select Crydom solid-state relays, but may be compatible other solid-state relays made by other companies. Review Solid-State Relay Options
This video tells you the set up that we used to get real world ranges on our wireless communication modules.
Learn how to find the COM Port on your windows based computer. You can also use Base Station to find the COM Port of your Relay Controller. Base Station can be downloaded at ncd.io/start.
This video will guide you in determining which relay controller you need for your application as well as a general overview of the differences between Relay Options. If you’re new to our products or just need a refresher for a new application this is a great place to start.
Learn about Induction and how it comes into play with Relay Controllers. Induction suppression can make your Relay Control applications intermittent and unreliable. This video will show you what causes it, how to avoid it, and how to account for it in your application.
MirW devices are sold pre-configured during the order process. It’s not always easy to change this configuration once installed, and may require the return of some components to complete the configuration process. Contact Closure Inputs may only be connected to switches, buttons, or sensors with Contact Closure capability. Not suitable for use in voltage detection applications. MirW devices use Digi 900HP-S3B two-way communications at 900MHz to ensure the remote device is properly functioning. The Busy LED is always used to indicate a properly functioning remote device. If you do not see the Busy LED flash, then the MirW controller is unable to communicate to the remote device. A flashing busy LED is your verification that all communications are functioning properly between MirW controllers.
Please Note: Users must NEVER apply any voltage to an input on the MirC controller, these inputs are for Contact Closure connections only.
Please Note: Relays do NOT provide a voltage output. They provide a contact closure output, exactly like the terminals found on a light switch at your local hardware store. Wiring to a relay will be slightly different depending on the model controller you choose.
Notice: Compatibility Notes Does NOT Apply to the Following Products:
Notice: Compatibility Notes Applies to NCD Industrial Products, Including Fusion, ProXR, ProXR Lite, Taralist, and Reactor Series Products.
Compatibility Notes
When using an 900HP-S3B communication module, it is essential that you use the ZIGMO_PCB to configure the module settings. Long-Range wireless sensors may be programmed over the air without removing the communications module.
A 900HP-S3B Modem or a gateway of some kind that support the 900HP-S3B communications module will also be required.
Please examine the datasheet of each solid state relay carefully, as SSRs do not function exactly like mechanical switches. SSRs frequently have minimum load requirements, and some require external snubber circuitry for certain applications. SSRs do not typically work with volt meters in the same way as mechanical switches. SSRs must also be chosen for AC or DC applications, as they are not universally interchangeable. Some SSRs require forced air cooling, and may be damaged if not properly ventilated. Please consult the experts at Crydom.com if you are uncertain about your choice of SSR.
