20
6 Power Supply, Grounding and Shielding
The power supply terminal block is shown in the figure below.
The unit must always be grounded to earth with shielded CAT 5 cable. Grounding helps limit the effects of
noise due to electromagnetic interference on the control system.
The earth connection can also be made using the screws located near the connector. A label helps identify
the ground connection.
All the electronic devices in the control system must be properly grounded. Grounding must be performed
according to applicable regulations.
Use a shielded CAT 5 cable or higher
Note:
Ensure that the power supply has enough power capacity for the operation of the equipment.
