Hello Could someone please tell me how to connect Shelly 1 to the gate panel TCT42/CT202 Automation instrukcje/Centrale/PL/230V/Skrzydłowe Greetings.

Shelly terminal I to SS on the control panel and Shelly terminal O to COM on the control panel, for step command (Open/Stop/Close/Stop). Power supply depending on the Shelly version. Power supply 230V, it should be clear how to connect. For the 24V version, the N terminal of the Shelly to the +24 Vdc terminal of the control panel and the L terminal of the Shelly to the GND terminal of the control panel. Similar topics with other panels: Link , Link .

Then read post #6, plus check all the connections. Is the radio card properly seated in the connector, socket J4 and does it respond to the remotes. Delete all remotes according to the instructions and upload them again. Check also the batteries in the remotes to make sure they are not already dead.

I used a Shelly Union and use the ADC input to test the voltage on the reed switch (via an additional light which I have in the NICE Robus 600 drive programmed as an open signal). DC power supply from the drive.

>>20457744 Hello I have connected and the Shelly is working, only there is 1 problem, because the remote controls have stopped working. I have connected on 24V, could this be a problem? Should I change the jumper in the Shelly and connect it to 230V? Will this change anything? And one more question, where to connect in the control panel possibly an additional button so called bell button to open the gate. Greetings.

Then what voltage version of the shelly do you have, 230 V AC or 12, 24-60 V DC? If you connect the 12, 24-60 V DC version to 230 V AC, you will only see fireworks in the optimistic scenario. Disconnect the shelly and check if the remotes will work. If yes, you have probably misconfigured the shelly. If not, re-program the remotes to the radio receiver in the control panel. Wire the bell button in the same way as the shelly, i.e. to the SS and COM terminals for the step-by-step command.

No, no exaggeration, I am not such a layman. In shelly, jumper on 24 and configuration OK, everything works from the phone, only the remotes do not respond. On the faac 740 everything works OK with the remote controls and the phone, and here only from the phone.

FAAC and KEY are different remote controls. Did you operate both drives with the same remotes?

Faac 740 works OK remote and from app, and key only from app. Two separate gates.

You misunderstood what I wrote. Are the gates operated, controlled by the same remote control?

Sorry mate, no, these are two separate gates. Same Shelly configuration on both and on FAAC everything great and on Key the remotes don't work. The remote controls are separate for FAAC and Key

Everything is ok as the remotes were working until the Shelly was connected. I'll try to re-code the remotes, maybe that's the problem. Thank you very much, when I figure it out I will let you know. Thanks again and best regards.

Shelly 1 - Connection to the door control unit tct42/ct202 - step-by-step instructions

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#1 20457590 25 Feb 2023 13:22

Maliniak1975 Maliniak1975

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Post #1
20457590 25 Feb 2023 13:22

Hello
Could someone please tell me how to connect Shelly 1 to the gate panel TCT42/CT202
https://key-polska.pl/instrukcje/?dir=Key Automation instrukcje/Centrale/PL/230V/Skrzydłowe
Greetings.
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#2 20457744 25 Feb 2023 14:39

sisko sisko

Level 33

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Post #2
20457744 25 Feb 2023 14:39

Shelly terminal I to SS on the control panel and Shelly terminal O to COM on the control panel, for step command (Open/Stop/Close/Stop).
Power supply depending on the Shelly version. Power supply 230V, it should be clear how to connect. For the 24V version, the N terminal of the Shelly to the +24 Vdc terminal of the control panel and the L terminal of the Shelly to the GND terminal of the control panel.
Similar topics with other panels: Link , Link .
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#3 20457757 25 Feb 2023 14:44

Maliniak1975 Maliniak1975

Level 8

» | Topic author Helpful post? (0)

Post #3
20457757 25 Feb 2023 14:44

Thank you very much.
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#4 20460045 26 Feb 2023 18:58

marcingebus marcingebus

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Post #4
20460045 26 Feb 2023 18:58

I used a Shelly Union and use the ADC input to test the voltage on the reed switch (via an additional light which I have in the NICE Robus 600 drive programmed as an open signal). DC power supply from the drive.
#5 20469538 04 Mar 2023 19:09

Maliniak1975 Maliniak1975

Level 8

» | Topic author Helpful post? (0)

Post #5
20469538 04 Mar 2023 19:09

>>20457744
Hello I have connected and the Shelly is working, only there is 1 problem, because the remote controls have stopped working. I have connected on 24V, could this be a problem? Should I change the jumper in the Shelly and connect it to 230V? Will this change anything? And one more question, where to connect in the control panel possibly an additional button so called bell button to open the gate.
Greetings.
#6 20473096 06 Mar 2023 20:09

sisko sisko

Level 33

» | Helpful post? (+1)

Post #6
20473096 06 Mar 2023 20:09

Then what voltage version of the shelly do you have, 230 V AC or 12, 24-60 V DC? If you connect the 12, 24-60 V DC version to 230 V AC, you will only see fireworks in the optimistic scenario.

Disconnect the shelly and check if the remotes will work. If yes, you have probably misconfigured the shelly. If not, re-program the remotes to the radio receiver in the control panel.

Wire the bell button in the same way as the shelly, i.e. to the SS and COM terminals for the step-by-step command.
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#7 20473120 06 Mar 2023 20:19

Maliniak1975 Maliniak1975

Level 8

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Post #7
20473120 06 Mar 2023 20:19

No, no exaggeration, I am not such a layman. In shelly, jumper on 24 and configuration OK, everything works from the phone, only the remotes do not respond. On the faac 740 everything works OK with the remote controls and the phone, and here only from the phone.
#8 20473133 06 Mar 2023 20:25

sisko sisko

Level 33

» | Helpful post? (+1)

Post #8
20473133 06 Mar 2023 20:25

FAAC and KEY are different remote controls. Did you operate both drives with the same remotes?
#9 20473153 06 Mar 2023 20:36

Maliniak1975 Maliniak1975

Level 8

» | Topic author Helpful post? (0)

Post #9
20473153 06 Mar 2023 20:36

Faac 740 works OK remote and from app, and key only from app. Two separate gates.
#10 20473169 06 Mar 2023 20:41

sisko sisko

Level 33

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Post #10
20473169 06 Mar 2023 20:41

You misunderstood what I wrote. Are the gates operated, controlled by the same remote control?
#11 20473179 06 Mar 2023 20:45

Maliniak1975 Maliniak1975

Level 8

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Post #11
20473179 06 Mar 2023 20:45

Sorry mate, no, these are two separate gates. Same Shelly configuration on both and on FAAC everything great and on Key the remotes don't work. The remote controls are separate for FAAC and Key
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#12 20473219 06 Mar 2023 21:00

sisko sisko

Level 33

» | Helpful post? (+1)

Helpful post
Post #12
20473219 06 Mar 2023 21:00

Then read post #6, plus check all the connections. Is the radio card properly seated in the connector, socket J4 and does it respond to the remotes. Delete all remotes according to the instructions and upload them again.
Check also the batteries in the remotes to make sure they are not already dead.
#13 20473227 06 Mar 2023 21:05

Maliniak1975 Maliniak1975

Level 8

» | Topic author Helpful post? (0)

Post #13
20473227 06 Mar 2023 21:05

Everything is ok as the remotes were working until the Shelly was connected. I'll try to re-code the remotes, maybe that's the problem. Thank you very much, when I figure it out I will let you know. Thanks again and best regards.
#14 20483247 12 Mar 2023 19:24

Maliniak1975 Maliniak1975

Level 8

» | Topic author Helpful post? (0)

Post #14
20483247 12 Mar 2023 19:24

>>20473219
Everything works OK, phone and remotes. "Someone" wanted to be smarter and messed up the Shelly app and unnecessarily did it his way wasting my time among other things. Thanks for your help. Best regards.
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Topic summary

✨ The discussion revolves around connecting a Shelly 1 device to a TCT42/CT202 gate control panel. The initial guidance suggests connecting Shelly terminal I to SS and terminal O to COM for step commands. Users discuss power supply options, noting the importance of using the correct voltage (230V or 24V) to avoid device failure. A user experiences issues with remote controls ceasing to function after connecting the Shelly, prompting troubleshooting steps including checking connections and reprogramming remotes. Ultimately, the user resolves the issue, confirming that both the app and remotes work correctly after correcting the Shelly configuration.

FAQ

TL;DR: Wire Shelly 1 to 2 control terminals; "I to SS, O to COM." Match the power version to your board. This FAQ helps Key TCT42/CT202 users solve wiring, powering, and remote-control issues fast. [Elektroda, sisko, post #20457744]

Why it matters: Incorrect wiring or power can disable remotes or destroy your Shelly.

Quick Facts

Step input: connect Shelly I to SS and O to COM; cycles Open/Stop/Close/Stop. [Elektroda, sisko, post #20457744]
Power options: Shelly 1 is available in 230 V AC or 12–60 V DC versions. [Elektroda, sisko, post #20473096]
24 V DC hookup: Shelly N to +24 Vdc, Shelly L to GND; set DC jumper. [Elektroda, sisko, post #20457744]
Add a push-button by wiring a momentary switch across SS and COM. [Elektroda, sisko, post #20473096]
Gate status monitoring can use Shelly Uni’s ADC with a reed/open-signal light, powered from the drive. [Elektroda, marcingebus, post #20460045]

How do I wire Shelly 1 to a Key TCT42/CT202 step input?

Use the board's step input. Connect Shelly terminal I to SS, and terminal O to COM. This provides a momentary step command. One pulse cycles the controller through Open/Stop/Close/Stop. Keep control wiring low-voltage and separate from mains. [Elektroda, sisko, post #20457744]

What power supply should I use for Shelly 1 on this board?

Use a Shelly version that matches the available supply. The 230 V AC model connects to mains. The 12–60 V DC model connects to the controller's DC output. Do not mix versions. [Elektroda, sisko, post #20473096]

How do I connect the 24 V DC version correctly?

For 24 V DC, wire Shelly N to the control board's +24 Vdc. Wire Shelly L to the board's GND. Set the Shelly's jumper for DC operation. Confirm polarity before power-up. [Elektroda, sisko, post #20457744]

My remotes stopped working after I installed Shelly—how do I fix it?

Disconnect Shelly to isolate the radio system. If remotes work, adjust Shelly configuration. If not, reprogram remotes to the receiver. How-To:

Power down, remove Shelly control wires, power up.
Test remotes and re-teach them if needed.
Reconnect Shelly and retest.

This sequence restores normal radio operation. [Elektroda, sisko, post #20473096]

What happens if I connect a DC-version Shelly to 230 V AC?

Expect catastrophic failure and safety risk. The DC-only Shelly must never see 230 V AC. Quote: "If you connect the 12, 24-60 V DC version to 230 V AC, you will only see fireworks." Replace the device if this occurred. [Elektroda, sisko, post #20473096]

How do I add a physical push-button to open the gate?

Wire a momentary 'doorbell' button to the same step-input terminals. Connect the button across SS and COM on the control board. The button will trigger Open/Stop/Close cycles like Shelly. Use a dry, normally-open contact. [Elektroda, sisko, post #20473096]

Where is the radio receiver card on the Key TCT42/CT202 board?

Check the plug-in receiver in socket J4 on the control board. Ensure it is fully seated and responsive to remotes. Reseat it if unresponsive. Then re-teach remotes as required. [Elektroda, sisko, post #20473219]

Do FAAC and Key remotes work interchangeably?

FAAC and Key use different radio systems and remotes. You cannot control both with one brand's remote without compatible receivers. Use separate remotes or a universal receiver. Verify compatibility before changes. [Elektroda, sisko, post #20473133]

Can I monitor gate position or open status with Shelly Uni?

Yes. Use Shelly Uni's ADC input to read a reed switch or an 'open signal' light. Power Shelly Uni from the drive's DC output. Map the ADC value to status in the app. This gives basic open/closed detection. [Elektroda, marcingebus, post #20460045]

The app works, but my remotes don't—could the Shelly app config be the cause?

Yes. Misconfigured Shelly settings can interfere with the control logic. Restore a simple momentary pulse configuration and retest. After correcting the app, both phone control and remotes worked for the user. Avoid unnecessary custom modes. [Elektroda, Maliniak1975, post #20483247]

How does the step command sequence behave on this gate controller?

Each trigger advances through four states: Open, Stop, Close, Stop. Use short pulses from Shelly's relay. This is the standard step sequence on the SS/COM input. Time pulses to avoid double triggers. [Elektroda, sisko, post #20457744]

What's the safest way to test whether Shelly is affecting remote reception?

Temporarily disconnect Shelly from SS/COM and test the remotes. If they work, Shelly's setup caused the issue. If not, reseat the radio card in J4 and reprogram remotes. Replace remote batteries if weak. [Elektroda, sisko, post #20473219]