Electronic Controller

MDFUNC series

Description of the MDFUNC series

The MDFUNC series consists of 6 different modules and, within this, three different proportional amplifier types. They fill the gap between simple control units and complex PLCs. Using a number of configurable inputs and outputs, the MDFUNCI/O logic and a clearly arranged configuration tool, sophisticated control and monitoring tasks can also be quickly realised The number of the inputs and outputs in each case and heir special functions (e.g. frequency measurement, current control) vary from model to model. However, all modules have a CAN interface and can be very simply be brought together into a network. A common feature is also the compact housing suitable for the DIN rail mounting and a two-line display including operating buttons.  With these properties the MDFUNC series is optimally suited for mobile and maritime control and monitoring tasks.

Main features

• Compact design in a DIN rail housing
• LC display for process data display and parameterisation
• Comfortable parameterisation and linking of all inputs and outputs via a PC tool
• Simple networking via CANbus
• Galvanically isolated CANbus to ISO 11898
• Galvanically isolated digital inputs and PWM outputs
• Input voltage range: 10 – 30 VDC

Areas of application

• Control and monitoring of
  • hydraulic b/w or proportional valves
• Couplings
• Thrusters
• Winches
• Cylinders
  • DC motors
  • Pumps
• Use as input and output nodes in a CANbus network
• Your application? 

Configuration

Inputs and outputs of the modules

MDCO-PWM8H

A CANopen slave module with many different possible uses thanks to 8 powerful PWM outputs and 2 analogue inputs.

Description of the MDCO-PWM8H module

The MDCO-PWM8H is a CANopen slave module with 8 powerful high-side PWM outputs and 2 analogue inputs. It provides an automatic adjustment of the PWM output voltages to the internally measured supply voltage. There is the possibility to control the temperature thanks to an integrated temperature measurement system in the housing. The module can be fully parameterised on-site with the aid of SDO messages via the CAN bus. A dust- and waterproof housing and appropriate plugs ensure its robust and flexible use.

Main features

• Input voltage range: 10 – 30 VDC
• 8 PWM outputs (max. 2.5 A per driver, max. 9 A total module current)
• 2 analogue inputs (0 – 10 VDC)
• 2 sensor power supply voltages (input voltage with a resettable 200 mA fuse)
• Galvanically isolated CANbus to ISO 11898
• CANopen protocol
• IP65
• Up to 3 modules cascadable under full load

Areas of application

• Agricultural equipment
• Construction equipment
• Hydraulic control systems
• Maritime equipment (cranes etc.)
   

Configuration

PWM settings
The PWM outputs can be configured in pairs. This enables 8 black/white or 4 proportional bi-directional valves to be individually controlled. 3 parameters are provided for b/w valves (starting voltage, starting time and normal voltage). These parameters are used on b/w valves to enable secure starting at a high voltage and to then to maintain a low level of leakage at low voltage.

CAN messages
The measured input voltage, the measured temperature and the values of the analogue inputs are provided as a PDO. The module has free CANopen mapping so that the messages may be freely defined.

Dealing with errors
Where there is an error the outputs may be reset to a previously defined error condition. An error may be such as the absence of the CAN heartbeat, under-voltage or a driver status error (over-temperature, short-circuit). It is attempted to send an error message via the CAN Bus which can help in the diagnosis.

MDCODIO I/O expansion module with CANopen interface and optional 16x16 LED matrix

The MDCODIO has universal applications.
It can be used in all situations where additional inputs and outputs are required in a CANopen-based system. The condition of the inputs is transmitted periodically to all CAN bus system members and can be evaluated by such items as the control unit. The MDCODIO provides digital inputs and outputs via a CANopen interface. It acts as a decentralised I/O expander and can be used with standard control units or PLCs.

By inserting an additional board with a 16x16 LED matrix the MDCODIO is expanded to become a "display" with I/O functions.
Text and icons may be created using our PC tool and saved on the MDCODIO. The display of saved text/icons may be made either on a full-screen basis across the whole of the display area or in one half of the display (top/bottom). Through the division two texts or icons can be displayed at the same time. The display is controlled using CANopen messages (PDOs).