BECKHOFF CU8004-0000 - Manual (Page 7)

Product Overview
CU8004-0000 5
2.3 LED diagnostics
LED Allocation State Meaning
off no supply voltage P10 Power supply
shining green 5 V
DC
for downstream ports is provided
shining green the total current of all 4 downstream ports is less than 2,5 A P11 Current
control
shining red the total current of all 4 downstream ports is bigger than 2,5 A
off port not operational
shining green port fully operational
blinking green software attention
shining red
Error condition e.g. overcurrent (port current > 1 A or short circuit)
P31 USB Port 1
blinking red hardware attention
off port not operational
shining green port fully operational
blinking green software attention
shining red
Error condition e.g. overcurrent (port current > 1 A or short circuit)
P32 USB Port 2
blinking red hardware attention
off port not operational
shining green port fully operational
blinking green software attention
shining red
Error condition e.g. overcurrent (port current > 1 A or short circuit)
P33 USB Port 3
blinking red hardware attention
off port not operational
shining green port fully operational
blinking green software attention
shining red
Error condition e.g. overcurrent (port current > 1 A or short circuit)
P34 USB Port 4
blinking red hardware attention