kannot Posted April 20, 2017 Share Posted April 20, 2017 Making no sense to me is the wiring diagram as I dont know the terms used on the circuit boards, photos attached sensor 1 has 2 terminals but no + or- written on them just vcc and gnd so what do they mean Photos of main board and the two different photo sensors attached . Is "gnd" 0 volts ie - and whats vcc? or assume +? would help if the sensors had + and- on but they dont even though all made by same co. who make the gate motor. The second sensor with 4 terminals again has gnd, vcc, ir and "out" whats "out"? doesnt say that on the sensor it says gnd vcc ir and com? assume com is+? confused anyway. Help appreciated................using 4 core .65mm phone cable as its all the shop had? or should I use some cat 5 cable? is in trunking underground and can easily pull the stuff thru Link to comment Share on other sites More sharing options...
kannot Posted April 20, 2017 Author Share Posted April 20, 2017 Looked again and think i get it ...changed mind still dont??? Link to comment Share on other sites More sharing options...
carlyai Posted April 20, 2017 Share Posted April 20, 2017 Good you got it. Vcc is the supply voltage which can be negative or positive depending on what logic gates are used in the circuit + Vcc is positive supply volts and - Vcc is negative supply volts.IR should be the Infra Red detector.Sent from my SM-J700F using Thailand Forum - Thaivisa mobile app Link to comment Share on other sites More sharing options...
kannot Posted April 20, 2017 Author Share Posted April 20, 2017 15 minutes ago, carlyai said: Good you got it. Vcc is the supply voltage which can be negative or positive depending on what logic gates are used in the circuit + Vcc is positive supply volts and - Vcc is negative supply volts. IR should be the Infra Red detector. Sent from my SM-J700F using Thailand Forum - Thaivisa mobile app Erm No I dont have it at all???????? and "gnd" Link to comment Share on other sites More sharing options...
RichCor Posted April 20, 2017 Share Posted April 20, 2017 Via GOOGLE: Quote VCC stands for "voltage at the common collector." The letter "V" on a circuit stands for the supply voltage. The letters "CC" indicate that the supply voltage is positive or negative. On the two boards, VCC and GND connections get wired to the VCC+ and VCC- (or 18+ and GND in the diagram) On the one board, IR and COM connections (COM and OUT in the diagram) get wired to GND and IR ...though this seems reversed, I believe it is a 'dry' connection (acting as a relay switch) so shouldn't matter. Link to comment Share on other sites More sharing options...
kannot Posted April 20, 2017 Author Share Posted April 20, 2017 2 minutes ago, RichCor said: Via GOOGLE: On the two boards, VCC and GND connections get wired to the VCC+ and VCC- (or 18+ and GND in the diagram) On the one board, IR and COM connections (COM and OUT in the diagram) get wired to GND and IR ...though this seems reversed, I believe it is a 'dry' connection (acting as a relay switch) so shouldn't matter. Thanks Link to comment Share on other sites More sharing options...
kannot Posted April 22, 2017 Author Share Posted April 22, 2017 On 4/20/2017 at 8:05 PM, RichCor said: Via GOOGLE: On the two boards, VCC and GND connections get wired to the VCC+ and VCC- (or 18+ and GND in the diagram) On the one board, IR and COM connections (COM and OUT in the diagram) get wired to GND and IR ...though this seems reversed, I believe it is a 'dry' connection (acting as a relay switch) so shouldn't matter. Big Thanks goes out to YOU, wired it all up this morning, got the gate working and all set up then connected the ir sensors and...........................ZILCH, gate wouldnt open or close but can here the sensors clicking so know they are doing there job..................... YOU were right when you said it seemed strange for "IR" and "Com" to be reversed............ swapped them around and bingo............ Their wiring diagram is incorrect................. Chinese, "IR" goes to IR terminal not as they have it drawn.........if u r down near here anytime call in, Pranburi area Many thanks anyway Link to comment Share on other sites More sharing options...
RichCor Posted April 22, 2017 Share Posted April 22, 2017 Good that you took the risk and swapped the wire positions. It should have been a simple open relay connection (making the connection when the IR beam was broken. But maybe there's a diode in the circuit that only allows the 'sense' current to flow one direction through the IR Board circuit. Glad you got it working. Link to comment Share on other sites More sharing options...
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