Connection of the sensors, actuators and the supply

Important:
  • All wiring work must be performed in the de-energised state.
  • Ensure installation is completed correctly.
  • Comply with existing legal and/or operational directives.
  • Improper handling can cause injuries and/or damage to the instruments.
  • Run all data and power cables so that they do not pose a trip hazard and ensure that cables do not have any sharp bends!
  • The length of data and current cables must not exceed 30m !
 

Connection of the sensors, actuators and the supply (front)

Connection of the sensors, actuators and the supply (rear)
1 Supply (V IN, GND) 6 Com1 (RS485)
2 Relay 1 7 Ground and universal input 1
3 Relay 2 8 Universal input 2-3
4 Reserved for extension 9 Reserved for extension
5 Reserved for extension    
DC IN
VIN Supply voltage: 9...32 VDC (+/-10 %), max. 9 W
GND Ground
RELAY1
NO1 Operating contact of relay 1 (Normally Open)
CC1 Root of relay 1
RELAY2
NO2 Operating contact of relay 2 (Normally Open)
CC2 Root of relay 2

COM1
A RS485 A
B RS485 B

UNIVERSAL INPUT
GND Ground
UI3 Universal input 3
UI2 Universal input 2
UI1 Universal input 1

The following table contains the conditions to be observed when connecting cables to the terminals of the myDataconC3 MBM zu beachte:

Nominal cross-section1,5 mm²
Cross-section for solid wire 0,14...1,5 mm²
Cross-section for stranded wire 0,14...1,5 mm²
Length to be stripped 9 mm
Torque 0,22...0,25 Nm

  1. Connect your sensors and actuators to the inputs, the RS485 interface and outputs. Ensure that no current is present! The cable for the supply of the myDataconC3 MBM should be connected to the supply terminal with no current present.
    Tip: The following applies when connecting sensors to the RS485 interface: Use a shielded twisted pair cable to prevent electromagnetic interference caused by the environment. The total length of the cables connecting the Modbus servers must not exceed 30 m. It is advisable to use a multi-core cable in which data and power lines can be routed together. When connecting multiple Modbus servers, only a bus structure is permitted. Stubs or star and tree topologies are not permitted.
  2. Connect the antenna (see Connection of the mobile network antenna).
  3. Switch on the 9...32 VDC supply voltage of the myDataconC3 MBM .
    4. The following step is not mandatory.
  4. Check whether the connection to the myDatanet was established correctly (see Testing communication with the device).