CMG48 Module

CMG48 is an open frame CanBus module with CanOpen protocol mountable on a standard DIN rail, designed to provide all these connection points:

• 20 optocoupled digital inputs
• 20 optocoupled digital power outputs
• 4 analog inputs
• 4 analog outputs

Here is the section grouped list of all the available connections.

General

2 groups of spring-cage connectors are available:

• 2 connectors for module 24 V power supply
• 6 connectors for CanBus line (CANH, CANL, and GND_CAN input; CANH, CANL, and GND_CAN output)

Digital inputs

To these inputs can be connected push-buttons, limit switches, proximity sensors, photocells, etc.

2 groups of spring-cage connectors are available:

• 2 connectors for channels 24 V power supply, isolated from the module
• 60 connectors for channels connection, with 3 points for every channel. This is the meaning of each clip
  • 0V
  • input
  • 24 V

2 wires devices, typically limit switches, can be connected directly, without additional connectors.

3-wires devices, like photoelectric cells and proximity sensors, can be connected directly to the 3 points respecting their own meaning, without any extra connector.

Channels power supply is protected by an electronic fuse against accidental shortcircuits.

Digital outputs

Digital outputs can be connected to contactors coils, small solenoids of hydraulic or pneumatic valves, etc.

It is possible to drive all 20 outputs together, with a maximum current of 2A each.

50 spring-cage connectors are available, distributed on 2 plans, grouped in 5 independent subgroups of 10 connectors. Each subgroup has 5 couples of connectors: 4 for channels output and 1 (centered) for the power source. Every subgroup is galvanically independent from the others.

Having 2 connectors for each output, each device can be connected directly, without any additional connectors.

The channel protection signal is also readable.

Analog inputs

The analog input mode can be changed by software, allowing the module to read differential tension signals with dynamics 0/10 V or +10/-10 V, current signals with dynamics 4/20 mA or 0/20 mA and potentiometers directly powered by a reference voltage source, protected from short circuits. Optionally it is possible to read PT100 temperature transducers.

One group of connectors is available:

• 16 connectors grouped in 4 independent subgroups of 4 connectors each.
  This is the meaning of each clip for every subgroup (depending by the mode):
  • Positive reference voltage for potentiometers / Pole PT100.
  • Differential voltage input negative pole / Current input negative pole / Pole PT100.
  • Differential voltage input positive pole / Current input positive pole / potentiometer center terminal.
  • Potentiometer 0V reference

Analog outputs

One group of connectors is available:

• 8 connectors grouped in 4 independent subgroups of 2 connectors.
  This is the meaning of each clip for every subgroup:
  • Output signal referred to 0 V.
  • 0 V reference.