Paolo Trenti Posted May 22 Share Posted May 22 Hello, I have 12V sliding gate motor with two connection on is board: 1. full (to input full open and close command), 2. Ped ( to input pedestrian open and close). I was thinking to use Shelly plus 2pm to control both inputs but all is 12v dc. Is it possible? Thanks Quote Link to comment Share on other sites More sharing options...
Members thgoebel Posted May 22 Members Share Posted May 22 (edited) Could you please give us a link to the motor specs and/or the corresponding manual? Possibly, a Shelly UNI plus could solve the issue… Edited May 22 by thgoebel Quote Link to comment Share on other sites More sharing options...
Paolo Trenti Posted May 24 Author Share Posted May 24 This is the manual with the board connections. Thanks for the help. Let's see what's new.pdf Quote Link to comment Share on other sites More sharing options...
Members thgoebel Posted May 24 Members Share Posted May 24 Thanks for the link! The easiest way to solve this issue would IMHO be to use two Shelly plus 1: The left Shelly controls the full opening of the gate, the right the pedestrian opening. Please be aware that a sufficient WLAN coverage at the location where the Shellies are intended to be mounted. Quote Link to comment Share on other sites More sharing options...
Members thgoebel Posted May 24 Members Share Posted May 24 A second solution (with only one Shelly device) is depending from the assumption that the activating current at the pins FULL and PED(estrian) is lower than 350mA. This is very likely cause the control of the motor happens not directly, but via a specific electronic circuit. Plan B is working with a Shelly UNI plus: Quote Link to comment Share on other sites More sharing options...
Paolo Trenti Posted May 25 Author Share Posted May 25 Thanks a lot for the useful info. So the shally plus 2pm is unuseful cause not work with 12vDC right? And if the all sister was 24vDC would it be ok? Thanks. Quote Link to comment Share on other sites More sharing options...
Paolo Trenti Posted May 25 Author Share Posted May 25 (edited) 3 hours ago, thgoebel said: … depending from the assumption that the activating current at the pins FULL and PED(estrian) is lower than 350mA. This is very likely cause the control of the motor happens not directly, but via a specific electronic circuit. I read the specs of Shelly UNI and the Max switching current is 250mA. Anyway can I misure it with tester? How? Edited May 25 by Paolo Trenti Quote Link to comment Share on other sites More sharing options...
Members thgoebel Posted May 25 Members Share Posted May 25 8 hours ago, Paolo Trenti said: So the shally plus 2pm is unuseful cause not work with 12vDC right? A Shelly plus 2PM „off the shelf“ will not work with 12V DC. But after a modification (a wire and a diode will be added) the device will operate with 12V DC. If you are interested, I could send you a modified Shelly plus 2PM… Quote Link to comment Share on other sites More sharing options...
Members thgoebel Posted May 25 Members Share Posted May 25 7 hours ago, Paolo Trenti said: Anyway can I misure it with tester? How? Switch your multimeter to current range (mA). Touch with the positive test tip pin 14 (FULL) and with the negative tip pin 19 (GND). The motor must now work. Read the current value. Do the same for pin 15 (PED) and 19 (GND). Both values must be smaller than 250mA. 1 Quote Link to comment Share on other sites More sharing options...
Paolo Trenti Posted May 31 Author Share Posted May 31 I tested the 2 contacts… both 350/360 mA 😭 So I must use 2 Shelly plus 1 right? Thanks a lot for your help! Quote Link to comment Share on other sites More sharing options...
Administrators Olsche Posted May 31 Administrators Share Posted May 31 5 minutes ago, Paolo Trenti said: So I must use 2 Shelly plus 1 right? not necessarily. It is also possible to connect 2 small relays to the outputs of the UNI, which then switch the load Quote Link to comment Share on other sites More sharing options...
Paolo Trenti Posted May 31 Author Share Posted May 31 Is correct? Quote Link to comment Share on other sites More sharing options...
Members thgoebel Posted May 31 Members Share Posted May 31 Thanks for the picture of the DMM! The current value of 3.6mA is most likely correct! Thus you may use a Shelly UNI or UNI plus without additional relays. Quote Link to comment Share on other sites More sharing options...
Paolo Trenti Posted May 31 Author Share Posted May 31 Ahhh is only 3.6mA I thought was 360. Sorry. So I’ll go with Shelly UNI plus. Thanks. 1 Quote Link to comment Share on other sites More sharing options...
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