Power supply – BECKHOFF CU2608 User Manual
Page 19

Mounting and cabling
CU2608
15
Power Supply
Present supply voltage (24 V
DC
) is shown by the green power LED.
LED
Display
Meaning
off
The power supply voltage Us is not present
green illuminated
The power supply voltage Us is present
24V Us
(Control voltage)
red illuminated
Caused by overload (current > 0,5 A) the sensor supply generated
from supply voltage Us has been switched off for all sensors.
off
The power supply voltage Up is not present
24V Up
(Auxiliary voltage)
green illuminated
The power supply voltage Up is present
The auxiliary voltage Up is not used within the CU2608 but it is fed trough.