ARLACON MC300
MC300MAE
Control system
User's manual
20
Product code 1003418
Whenever possible, earth from control components and signal wiring shields should be
connected to a separate earth called technical earth (TE), which is connected to the protective
earth (PE) as near the factory earth potential as possible.
Shields and earth wiring conducting emitted interference to earth, such as motor power cable
shields and motor/drive earth should be connected to PE.
To ensure, that all earths are as free of interference as possible, all earth wiring must be
connected in a tree fashion with branches routed to the central earth ground point (see. fig.
2.6.3.1 and fig. 2.6.3.2).
Programming
equipment
Control system
cabinet with
ARLACON MC
and other equipment
Other control equipment
such as drives
and distributed I/O
Machine with
motors, sensors and
actuators
common
ground point
earth at building
ground potential
NOTE
Signal and power
connections
not shown
MC300
24V
power
supply
Fig. 2.6.3.1, System ground tree arrangement
