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VMB4AN - 4-channel analog input module


  • Only a qualified professional may carry out the installation in conformity with in force legislation and standards.

  • protocol manuals for developers

    available for download at https://github.com/velbus

  • 4 sensor inputs
  • power supply output for the sensors
  • 8 alarm channels
  • configuration with Velbuslink software (free) and a USB/RS-232 interface module
  • electronically addressable (up to 250 addresses)
  • firmware can be upgraded through the Velbus® system
  • Information on the usage and configuration of this module is available in the configuration software Velbuslink.
  • Physical Properties:
    • Number of Channels: 4
    • Width DIN Modules: 4
  • Electrical Data:
    • Maximum Current Consumption: 550 mA
    • Standby Current Consumption: 60 mA
    • Maximum Output Current VDC: 150 mA
  • Technical Data:
    • Protocol: CAN bus
    • Sensor Input Specifications: Each sensor input configurable as: * Voltage input: 0 … 10 V , * Current loop input: 0 … 20 mA or 4 … 20 mA , * Resistance input: 0 … 2 kOhm , * Frequency input: 5 … 500 Hz
  • Set-up Options:
    • Configuration Software: Velbuslink
  • Operational Properties:
    • Instruction Manual Languages: Dutch, English, French, German, Spanish
    • Number Alarm Channels: 8
    • Output Type: Analog outputs (external server needed): 0 to 10 V / 10 mA per channel
    • Number addresses: 250
  • Power Supply:
    • Input Voltage Rating Vdc: 12-18 V
    • Output Voltage Rating VDC: 24 V
  • Included:
    • LED Indicator: Yes
  • Product Basic Info:
    • Colour: White
    • Height: 90 mm
    • Depth: 58 mm
    • Width: 71 mm
    • Weight: 140 g
    • Material: PC (polycarbonate)


EXE-File VelbusLink 10.8.5 (EN/NL/FR) - Latest version
Free Windows program to configure and program a Velbus installation (latest version - 09/22/2022)
PDF-File Velbus Installation Guide, Part 1: Hardware and Cabling
Everything you need to know about the Velbus hardware
PDF-File Velbus Installation Guide, Part 2: Configuration
How to configure Velbus modules using the free software VelbusLink
PDF-File Velbus Troubleshooting Guide
Step-by-step guide for solving Velbus problems.
EXE-File VelbusLink 10.6.5 (EN/NL/FR) - Previous version
Previous version of VelbusLink
XLSX-File Velbus consumption calculator
Spreadsheet to calculate the number of power supplies you need in a Velbus installation.

Info Sheets

PDF-File Infosheet
HTML-File Velbus actions by module (click on an action to see a description)
List of actions per module
Q. How do I connect sensors to the VMB4AN?
A. Up to 4 sensors can be connected to the VMB4AN using the "analog in" connections. For resistance, 0-10V and frequency sensors connect one wire to the COM input and the other to the 1, 2, 3 or 4 input. For current sensors (0-20mA), connect the + of the sensor to the + (power supply) of the VMB4AN, and the - of the sensor to input 1, 2, 3 or 4.
The type of each sensor (resistance, 0-10V, 0-20mA or frequency) is configured using Velbuslink.
If the sensor needs a 24V DC power supply, this can also be supplied by the VMB4AN using the leftmost 4 connections.
If the sensor has 3 wires, 2 of them (typically those that have the same color) have to be connected together.