Shelly Pro Dimmer 0/1-10V PM

[Heinz]

Shelly Pro Dimmer 0/1-10V PM

 

Smart DIN-mountable dimming controller for 0/1-10 V appliances with power measurement

Designed to manage 0/1-10V dimming drivers, Shelly Dimmer 0/1-10V PM Gen3 offers precise dimming with power measurement.

• DIN rail mountable
• Wi-Fi and Bluetooth-operated
• Diverse driver integration: Supports 0-10V and 1-10V types of drivers (lights, motors, valves, etc.).
• Power measurement: Precise monitoring of energy consumption. Information about voltage (V), current (A) and consumption (W) is displayed.
• Ethernet connectivity
• Scripting: Allows creating automation scenarios through scripts.
• One/dual button dimming mode: Use with physical switches
• Night Mode: Enables to set a specific brightness during nighttime.
• Auto on/off timers: Enables auto on/off timer setting.
• Safety: Оver current/voltage/power protection
• Virtual components: A special set of components that do not exist in the device initially and are created dynamically by the user.
• Wi-Fi Range Extender & BLE Gateway
• No hub required! Easy control through the Shelly Smart Control app, most platforms and protocols, as well as voice assistants. Use it with Alexa, Home Assistant, or your preferred automation platform.
• Supports KNXnet / IP communication

 

Main Application 

Residential

MDU (Multi-Dwelling Units - apartments, condominiums, hotels, etc.)

Light commercial (small office buildings, small retail/restaurant/gas station, etc.)

Government/Municipal

University/college

For more information see below 
Home Page    Specifications     Buy Shelly Pro Dimmer 0/1-10V PM

[mschaeffler]

what is the latest FW?

My one has 1.3.99-prodimmer0110vpmprod0 and does not find any update.

 

[Tomo_XD]

Looks like this device is what I need in order to control ventilator in my heater (24vdc ec motor with 0-10v control signal). I have however few doubts and could not find answer in tech specs or forums.

1. There is relay in this device and it has in/out pins. That suggests it is dry contact relay, yet there is no info about that whatsoever. Can I use this relay to switch on and off 24v from separate power supply? Can this relay be controlled independently from 0-10v signal?

2. How to connect this control module to my ventilator (motor) given power source is separate, should I bridge “minus” from this Shelly and power source (24vdc power supply)?

Thanks in advance for helping me out 🙂

 

PS: more details of this question can be found in this Reddit topic: https://www.reddit.com/r/ShellyUSA/s/OB1u9gXAEq

[thgoebel]

The simplified internal schematic shows a „nearly“ dry relay contact:

 

Only the resistor for voltage measurement (normally 1MΩ) is disturbing the „dryness“ of the contact. In some scenarios, this resistance may be neglected. Especially if the device is powered by a small voltage power supply (24V DC). In this case, +24V has to be connected to pin N and minus/GND to pin L of the Shelly.

 

Edited December 17, 2024 by thgoebel

[Tomo_XD]

10 hours ago, thgoebel said:

Only the resistor for voltage measurement (normally 1MΩ) is disturbing the „dryness“ of the contact. In some scenarios, this resistance may be neglected. Especially if the device is powered by a small voltage power supply (24V DC). In this case, +24V has to be connected to pin N and minus/GND to pin L of the Shelly.

Well, that won't work as this shelly is meant to be powered by 110-240VAC, right? Also if it was able to work with 24vdc then connecting +24 to N will make Power meter not working as there will be be no potential difference between input and N (I assume one provides +24vdc to relay input) 🤔

When it comes to voltage meter I was mainly wondering wether it will be able to measure power for DC power supply. For relay itself whether it can be safely used for 24vdc power supply to devices.

[thgoebel]

Why should I write a proposal which doesn’t work?

Due the fact, energy meter ICs in PM and EM Shellies do measure AC only, power metering does not work with DC supply. This is correct.

Would you please indicate precisely what you want? Otherwise, every proposal will be a guess…

By the way: This is the wiring for your scenario intended by the manufacturer:

 

[Tomo_XD]

1 hour ago, thgoebel said:

Why should I write a proposal which doesn’t work?

Due the fact, energy meter ICs in PM and EM Shellies do measure AC only, power metering does not work with DC supply. This is correct.

Would you please indicate precisely what you want? Otherwise, every proposal will be a guess…

By the way: This is the wiring for your scenario intended by the manufacturer:

I have 5 heaters and valves in total, wanted to controll those with 3-5 Shellys (in one room have 3 heaters so though might controll those with one shelly). For this setup wanted to use one big power supply. Additionally my motor has 3 inputs: 24V+; 0-10V control; GND (24V-). Schematics shown in examples shows controllers that has independent inputs for +/- 24V and +/- 0-10V control - I don't have that (so question was also whether I can bridge 24VDC supply minus with Shelly 0-10V controll minus).

Attaching schematic of what I. wanted to achieve. I might as well set it up with multiple power supplies, yet though it will be less efficient (both in terms of electricity and cost). Attaching that as well.

 

[thgoebel]

Due to the fact, the motor has three terminals only, you must link the minus wire of the 0-10V control signal with the GND of the 24V DC power supply. This is allowed cause the control output of Shelly device is floating.

[Tomo_XD]

4 minutes ago, thgoebel said:

Due to the fact, the motor has three terminals only, you must link the minus wire of the 0-10V control signal with the GND of the 24V DC power supply. This is allowed cause the control output of Shelly device is floating.

Perfect - this was my biggest doubt. Most probably will also go with multiple power supplies as it allows to easily cotrnoll valves just with this shelly and get power metering.

Do you know whether relay can be controlled independently? Or is on closed for 0V out, open for anything else? Either case should work for me, yet still good to know upfront 🙂

Also big thanks for your immediate answers 🙏

[thgoebel]

Addendum:

As suggested, you‘re supplying the Shelly with small voltage (24V DC). Please be aware of

(a) the power metering is not working (as mentioned above), and

(b) the coupling of the neutral wire with DC plus via a 1MΩ resistance.

(b) is technically unproblematic, but forbidden under rules. Thus, it would be brilliant to cut this lead:

This decouples the resistor for voltage measurement from the relay contacts.

[thgoebel]

16 minutes ago, Tomo_XD said:

Do you know whether relay can be controlled independently?

Did test the behaviour: Unfortunately, a control voltage at +/- pins is present with switch state „on“. This is true in both operational modes (0-10V and/or 1-10V). In 0-10V mode, an independent acting of control voltage and switch would be feasible. Possibly, a feature request would help?

Edited December 18, 2024 by thgoebel

[Tomo_XD]

17 minutes ago, thgoebel said:

Did test the behaviour: Unfortunately, a control voltage at +/- pins is present with switch state „on“. This is true in both operational modes (0-10V and/or 1-10V). In 0-10V mode, an independent acting of control voltage and switch would be feasible. Possibly, a feature request would help?

Feature request seems like a good idea. After some considerations if there is no independent controll (eg relay closes only for control voltage > 0), then will still need separate relay.
Where could I make such feature request?

[thgoebel]

https://community.shelly.cloud/forum/67-new-features/

[Aleksandr Zhuikov]

Hello,

Is it possible to use it in current sinking mode? API documentation says that it can work in both sourcing and sinking modes, but in technical details only sourcing mode is mentioned. I'd like to use it to control fan which is normally controlled by passive potentiometer.