The ACNSEM3L control unit is designed for the coordinated management of two traffic lights with 2 or 3 signals. Entirely designed and manufactured to Made in Italy standards, this unit is the ideal solution for access automation where reliability and ease of configuration are required. Thanks to the integrated multilingual LCD display, it allows fast and precise programming of all cycle times, ensuring maximum industrial safety in every transit scenario. The photo shows the 230Vac version, model ACNSEM3L230.
Main Applications
- Alternating one-way management on ramps and slopes: regulation of vehicle flow in low-visibility areas with customizable clearance times
- Residential and industrial gate automation: intelligent entry control via photocells or magnetic loop detectors
- Traffic regulation in loading/unloading zones: coordination of access phases for heavy vehicles in logistics hubs
- Security systems with emergency management: absolute transit priority in case of an alarm via a dedicated input
Technical data
| Light management | Supports 2 traffic lights with 2 or 3 lights |
|---|---|
| Electronics | Board with microprocessor and 5-language LCD display (IT, EN, FR, DE, ES) |
| Operating logics | On request: Activation via external sensors (N.O. or N.C.) Timed (cyclic): Autonomous operation based on the set times Mixed: Cyclic, but while the green is on, it is extended if a vehicle in transit is detected |
| Board power supply | 24 Vac/dc (base version) or 230 Vac (KIT version with transformer) |
| Traffic light power supply | Max 2A |
| Auxiliary power supply | 24 Vac/dc max 0.5 A |
| Protection rating | IP44 |
| Working temperature | -20°C / +60°C |
| Safety | Dedicated emergency input (IN3) with programmable behaviour |
Complete code list
Product code structure
Example: ACNSEM3L230
| ACNSEM3L | 230 |
|---|---|
| Product type | Product version:
|
Available models
| Code | Description | Power supply | Protection (IP) | Operating Temp. (°C) | Accessory Output |
|---|---|---|---|---|---|
| ACNSEM3L | Single 24V board for managing 2 traffic lights | 24 Vac/dc | IP44 | -20 / +60 | 24 Vac/dc (0,5A) |
| ACNSEM3L230 | Single 24V board for managing 2 traffic lights + 230V transformer | 230 Vac | IP44 | -20 / +60 | 24 Vac/dc (0,5A) |
Spare parts and accessories
| Code | Description |
|---|---|
| DA021 | Single-channel metal mass detector |
| DA035 | Dual-channel metal mass detector |
| AFAP20 | Pair of adjustable photocells for vehicle detection |
| PRAP | Bidirectional microwave radar |
Certifications
Drawings
The dimensioned PDF drawing is not published yet: we send it on request. Request it
Manuals and instructions
Frequently asked questions
What types of sensors can I use?
You can install any sensor capable of opening or closing 1 clean contact (NO/NC) for at least one second.
How many traffic lights can I connect to the ACNSEM3L?
The control unit manages 2 traffic lights, but also works with a single traffic light (in some particular cases, with only one traffic light, there may be "abnormal" behaviour because the unit is designed to always work with 2 traffic lights).
Is it possible to work with states? For example: I press input 1 and the light turns green, then I press input 2 and it turns red?
No, it is not possible to select state-based operation. The control unit always works based on the set timings.
Does the terminal block where I connect the traffic lights supply current?
No, the power source is external. The control unit is responsible only for switching the colour of the traffic lights.
Can I use gate photocells as input sensors?
Yes, the important thing to keep in mind is that gate photocells do not discriminate the direction of the vehicle.
Alternative Products
SATURNO:
- Management capacity: supports up to 10 traffic lights (2 or 3 lights), exceeding the limits of standard systems for managing complex transit flows.
- Programming: advanced interface with an integrated Web Server via local Wi-Fi; allows full configuration from a smartphone or PC via browser, with no dedicated software
- Advanced logics: includes specific functions for parking space counting and a Master/Slave architecture for large-scale projects, not available on the ACNSEM3L control unit
VIACONTROL:
- Advanced interface: features a 2.2" colour LCD display, offering real-time diagnostics and far better readability than the standard display.
- "State" programming: introduces a more intuitive and versatile configuration logic, managing the green according to how long the input is physically activated
- Expandability: includes a dedicated serial port for firmware updates and expansion modules, ensuring a long-lasting, always up-to-date investment
News and insights
- 4 things to know about the Stagnoli ACNSEM3L 24V control unit for the management of 2 traffic lights
Warranty and terms of sale
The warranty policies adopted by Stagnoli are set out in the General Terms and Conditions of Sale and naturally follow the legal rules on post-sale warranties (duration, proof of purchase, start date), which we summarise below:
- 12 months B2B, from the date shown on the proof of purchase (mandatory)
- 24 months B2C, from the date shown on the proof of purchase (mandatory)