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Alerton VLC-444E BACtalk VisualLogic BACnet Field Controller with 4 Universal Inputs and 4 Analog Outputs
- Regular price
- $645.00
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- $645.00
- Regular price
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Product Description P/N: VLC-444E
Description
The Alerton VLC-444E is a fully programmable BACnet field controller engineered for fan coil units, variable frequency drives, and other compact HVAC applications requiring dependable direct digital control. As part of the Alerton BACtalk® VisualLogic® family, the VLC-444E combines native BACnet MS/TP communication, high-speed processing, and flexible input/output capability to deliver precise equipment control and seamless building automation integration.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Alerton |
| Category | Building Automation |
| Part Number | VLC-444E |
| Subcategory | BACnet Field Controller |
| Series | BACtalk® VisualLogic® |
| Product Type | Programmable DDC Controller |
| Communication Protocol | BACnet MS/TP |
| Communication Speed | Up to 115.2 kbps |
| Power Supply | 24 VAC, 5 VA minimum (53 VA maximum including output loads) |
| Auxiliary Power Output | 20 VDC, 100 mA |
| Processor | ARM7 Processor |
| Memory | Nonvolatile Flash Memory |
| Universal Inputs | 4 (12-bit Auto-Sensing) |
| Input Types | Thermistor, Dry Contact, 0–10 VDC, 4–20 mA |
| Binary Outputs | 4 Triac Outputs, 24 VAC, 0.5 A each |
| Analog Outputs | 4 (12-bit), Auto-Selectable 0–10 VDC or 4–20 mA |
| Programming Software | Alerton VisualLogic® |
| Logic Execution Time | Approximately 100 ms |
| Compatible Wall Sensors | Alerton Microset® Family |
| Operating Temperature | -40°C to 65.5°C (-40°F to 150°F) |
| Operating Humidity | 5–95% RH, Non-Condensing |
| Dimensions | 125 × 127 × 36 mm (4.86 × 5.00 × 1.41 in.) |
| Terminal Type | Removable Screw Terminals, 14–24 AWG |
| Certifications | UL 916, CE (EMC Directive 89/336/EEC), FCC Part 15 Class A |
| Typical Applications | Fan Coil Units, Variable Frequency Drives, Packaged Air Conditioners, Dampers, Valves, Small HVAC Systems |
| Weight | Approximately 0.5 kg |
Information About VLC-444E
The VLC-444E is a member of the Alerton BACtalk® VisualLogic® controller series developed for distributed HVAC control in commercial and institutional facilities. Powered by a high-performance ARM7 processor, the controller executes user-programmed control logic with a fast 100 ms internal logic loop while storing applications and configuration data in nonvolatile Flash memory for reliable operation during power interruptions. The controller operates as either a native BACnet MS/TP device or as a stand-alone controller, making it suitable for both networked and independent HVAC applications. Compatible with the Alerton Microset® family of intelligent wall sensors, the VLC-444E provides convenient occupant interaction, technician diagnostics, and efficient control of fan coil units, packaged air conditioners, VFDs, dampers, and control valves.
Key Features:
- Native BACnet MS/TP communication: Operates on BACnet networks at speeds up to 115.2 kbps.
- Four universal inputs: Auto-sensing 12-bit inputs support thermistors, dry contacts, 0–10 VDC, and 4–20 mA signals.
- Four binary outputs: Hot-switched triac outputs rated at 24 VAC, 0.5 A each.
- Four analog outputs: 12-bit auto-selectable outputs supporting 0–10 VDC or 4–20 mA control.
- High-performance ARM7 processor: Provides rapid execution of control programs.
- VisualLogic® programming: Fully programmable using Alerton's graphical programming environment.
- Stand-alone capability: Continues HVAC control independently if network communication is unavailable.
- Nonvolatile Flash memory: Preserves firmware, applications, and configuration data.
- Intelligent wall sensor support: Compatible with the Alerton Microset® family.
- Integrated diagnostics: Dedicated LEDs indicate communication status and binary output operation.
- Auxiliary sensor power: Provides 20 VDC, 100 mA output for external 4–20 mA transmitters.
- Flexible HVAC applications: Ideal for fan coils, VFDs, packaged air-conditioning units, dampers, and valves.
The VLC-444E delivers the reliability and precision required for intelligent terminal HVAC control, BACnet automation, and energy-efficient commercial building management.
Description
The Alerton VLC-444E is a fully programmable BACnet field controller engineered for fan coil units, variable frequency drives, and other compact HVAC applications requiring dependable direct digital control. As part of the Alerton BACtalk® VisualLogic® family, the VLC-444E combines native BACnet MS/TP communication, high-speed processing, and flexible input/output capability to deliver precise equipment control and seamless building automation integration.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Alerton |
| Category | Building Automation |
| Part Number | VLC-444E |
| Subcategory | BACnet Field Controller |
| Series | BACtalk® VisualLogic® |
| Product Type | Programmable DDC Controller |
| Communication Protocol | BACnet MS/TP |
| Communication Speed | Up to 115.2 kbps |
| Power Supply | 24 VAC, 5 VA minimum (53 VA maximum including output loads) |
| Auxiliary Power Output | 20 VDC, 100 mA |
| Processor | ARM7 Processor |
| Memory | Nonvolatile Flash Memory |
| Universal Inputs | 4 (12-bit Auto-Sensing) |
| Input Types | Thermistor, Dry Contact, 0–10 VDC, 4–20 mA |
| Binary Outputs | 4 Triac Outputs, 24 VAC, 0.5 A each |
| Analog Outputs | 4 (12-bit), Auto-Selectable 0–10 VDC or 4–20 mA |
| Programming Software | Alerton VisualLogic® |
| Logic Execution Time | Approximately 100 ms |
| Compatible Wall Sensors | Alerton Microset® Family |
| Operating Temperature | -40°C to 65.5°C (-40°F to 150°F) |
| Operating Humidity | 5–95% RH, Non-Condensing |
| Dimensions | 125 × 127 × 36 mm (4.86 × 5.00 × 1.41 in.) |
| Terminal Type | Removable Screw Terminals, 14–24 AWG |
| Certifications | UL 916, CE (EMC Directive 89/336/EEC), FCC Part 15 Class A |
| Typical Applications | Fan Coil Units, Variable Frequency Drives, Packaged Air Conditioners, Dampers, Valves, Small HVAC Systems |
| Weight | Approximately 0.5 kg |
Information About VLC-444E
The VLC-444E is a member of the Alerton BACtalk® VisualLogic® controller series developed for distributed HVAC control in commercial and institutional facilities. Powered by a high-performance ARM7 processor, the controller executes user-programmed control logic with a fast 100 ms internal logic loop while storing applications and configuration data in nonvolatile Flash memory for reliable operation during power interruptions. The controller operates as either a native BACnet MS/TP device or as a stand-alone controller, making it suitable for both networked and independent HVAC applications. Compatible with the Alerton Microset® family of intelligent wall sensors, the VLC-444E provides convenient occupant interaction, technician diagnostics, and efficient control of fan coil units, packaged air conditioners, VFDs, dampers, and control valves.
Key Features:
- Native BACnet MS/TP communication: Operates on BACnet networks at speeds up to 115.2 kbps.
- Four universal inputs: Auto-sensing 12-bit inputs support thermistors, dry contacts, 0–10 VDC, and 4–20 mA signals.
- Four binary outputs: Hot-switched triac outputs rated at 24 VAC, 0.5 A each.
- Four analog outputs: 12-bit auto-selectable outputs supporting 0–10 VDC or 4–20 mA control.
- High-performance ARM7 processor: Provides rapid execution of control programs.
- VisualLogic® programming: Fully programmable using Alerton's graphical programming environment.
- Stand-alone capability: Continues HVAC control independently if network communication is unavailable.
- Nonvolatile Flash memory: Preserves firmware, applications, and configuration data.
- Intelligent wall sensor support: Compatible with the Alerton Microset® family.
- Integrated diagnostics: Dedicated LEDs indicate communication status and binary output operation.
- Auxiliary sensor power: Provides 20 VDC, 100 mA output for external 4–20 mA transmitters.
- Flexible HVAC applications: Ideal for fan coils, VFDs, packaged air-conditioning units, dampers, and valves.
The VLC-444E delivers the reliability and precision required for intelligent terminal HVAC control, BACnet automation, and energy-efficient commercial building management.