4. Diagnostics
4-6
Festo CPX-FB36-EN en 1611a English
4.2.1 CPX-specific LED displays
PS (Power System) – operating voltage supply
LED (green) Sequence Significance Error handling
lights up
ON
Off
No error. Operating voltage
applied.
–
flashes
ON
OFF
Operating voltage outside the
tolerance range.
Eliminate undervoltage.
ON
OFF
Internal fuse has responded. 1. Eliminate short circuit/over
load.
2. Depending on the paramet
erisation:
The power supply will be
switched on again automat
ically after the short circuit
has been eliminated (fact
ory setting).
Switch the power supply off
and then on again.
Off
ON
OFF
Operating voltage not present. Check connection of the oper
ating voltage.
Tab. 4/3: LED indicator PS (power supply)
PL (power load) – load voltage supply
LED (green) Sequence Significance Error handling
lights up
ON
Off
No error. Load voltage present. –
flashes
ON
OFF
Load voltage outside the tole
rance range.
Eliminate undervoltage.
Tab. 4/4: LED indicator PL (load voltage supply)