Frequently Asked QuestionsUpdated 05/22/2020
See the overview here - or call (408) 330-5599 for a free trial
How do I use the keypad to set it up?
How can I control
What is the polarity of the connectors?
How can I power the DIN relay itself?
Basics: What's a relay? How can I wire it up? Applications? Do you have a mechanical drawing?
How do I connect the ADC inputs?
What are the connector specifications?
What is the power dissipation?
What are the power requirements?
What pluggable mating terminals / connectors should I use?
What wiring gauge should I use?
I'd like to build a DC / solar powered IP Cam, WiFi AP, or similar DC powered system. What components do I need?
What are the contact ratings?
What wire should I use?
Do you have a ruggedized version? Something suitable for mobile use?
Where can I find the manual or spec sheet for the earlier (DIN3) model?
Enternal APIs - Communicating with the power controller
|Question:||I have a different model: DIN2,DIN3, Web Power Switch 7, Ethernet Power Controller II, III, V, or PC-8000 model. Where can I find information?|
|Answer:||Jump to the support page here. Don't see what you need? Just give us a call (408) 330-5599.|
|Question:||What's the Hardware Revision History?|
In our second version, DIN Relay II, with serial numbers DIN22000 and higher,
we added these features:
In of DIN Relay III, we added these features:
In version 3.1, we added these features:
In version 4, we completely redesigned the unit and added a host of new features:
RS-232 has been removed in lieu of the sensor port and ADC inputs.
Tell us what you'd like to see in the next version - firstname.lastname@example.org
|Question:||Whch temperature sensors are compatible?|
|Answer:||The DS18B20 or DHT-11 sensors with 3.5mm plugs are compatible and in stock. The pinout is shield=ground, ring=5V VCC, tip=data. Find a Lua thermostat code example here.|
|Question:||What is the polarity of the connectors?|
The polarity is stamped above the conenctor. It may be eeasier to see if they are removed.|
|Question:||What are the contact ratings?|
All eight internal T-90 Relays have the following ratings:
Relays are rated at 250,000 operations MTBF at 50% load. Case terminals are rated at 8-12A, depending on agency. Only stranded wire of appropriate gauge should be used. Terminals must be well torqued, but not over 10in/lbs. It is wise to recheck torque after completing the installation. Heavy traces and gold plating are used to minimize internal resistance between the terminals and relay contacts, typically 25m Ohms, so internal contact power dissipation is not normally a consideration. For maximum flexibility, relay contacts are unprotected. For high current inductive switching, consider adding an external snubber circuit to extend contact life. Download contact protection information from www.dinrelay.com/relaycare.pdf
|Question:||How do I connect the ADC inputs?|
Remove the accessory hatch. The plastic hatch on the right side of the relay can be opened to add a WiFi antenna or to connect analog inputs.
Using a small screwdriver, press gently on the lower edge of the hatch. Push towards the buttons The hatch will flex and pop open.
The antenna and/or ADC connector may be attached when the hatch is removed. A three pin connector is provided for ADC input. The upper pin is scaled for 0-100VDC, and the lower pin is 0-10VDC. The center pin is a ground reference bonded to the negative power input.
|Question:||How can I momentarily trigger (pulse) a relay?|
Just wire a capacitor in series with the circuit (assuming a DC load). Simple.
Press the existing cycle button in combination using the NC contact (instead of NO):
Name your circuit here:
Create a button that starts a script starting on line #2:
Clicking "Open the Blinds" toggles pulses the relay per this script:.
-- Open the Blinds function open_blinds() outlet.on() delay(1) outlet.off() endTry it at pro.digital-loggers.com:5002 admin/4321
You can also trigger scripts remotely. More on that here. REST API and MQTT. The BASIC scripting language has been replaced by Lua. A much more powerful watchdog supervisory processor has been added. Most important, there's good news on price: the new, more powerful ICs are less expensive. Here's a feature matrix comparing the older Taifatech and newer Atheros power models.
|Question:||Can I invert AutoPing or the Web Page to use NC contacts?|
or safety reasons and to prevent support issues, we have not implemented
an "invert relay" function in either the web UI or AutoPing.
You can drive the relays in reverse by:
You can also use the programmable web links to start a script.
|Question:||What are the mounting dimensions and physical size? Do you have drawings?|
|Answer:||Download a top-level print here (.pdf). Here are graphics of the front and back of the relay.|
|Question:||What components do I need to build a remotely powered DC site using the DIN relay as a power controller?|
|Answer:||In addition to the load (ie. APCam, PtP link, AP, etc), you'll need a battery, some source of power, ie wind or solar, and most importantly a charge controller with OVP and UVLO features. Over Voltage Protection is needed for reasonable battery life. Under Voltage Lockout is needed to correctly reset attached devices as well as the DIN relay and to prevent oscillation when the battery is deeply discharged.|
|Question:||Wiring and terminal information?|
|Answer:||Use stranded wire from 28AWG to 14AWG. Find information on Phoenix connectors here.|
|Question:||What's a relay? How can I wire it up?|
The DIN relay has dry contact FORM-C outputs. They provide whatever
output voltage you connect to them. For example, if you connect a wire
from the positive side of your 24V supply to the COM terminal, then the
NO terminal will provide 24 volts when the relay is switched on, and the
NC terminal will provide 24V when the relay is off. You can operate the
DIN relay on a different voltage than the relay contacts. For example,
the DIN relay could run on 12VDC, but switch 220VAC. You can also use
the relay to switch data, communications lines, or other electrical signals. In
a relay, contacts are electrically isolated from the coil. The DIN
relay controls the coil in the diagram below:
N.O. means Normally Open
N.C. means Normally Closed
COM means COMmon
Each relay is fully isolated, there is no
internal connection between the relays. The word "common" describes
the wiper of the relay itself which shares the NO and NC contacts in common. The COM pins on the DIN
relay are not connected each other unless you elect to do so
externally. Put simply, all relays are fully isolated.
A relay schematic looks like this:
Find a nice group of relay application notes and wiring examples here: https://www.digital-loggers.com/relay.html
If we haven't answered your questions here, please call (408) 330-5599 or send us an email. We'll be glad to help.
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