Diagnosis Profibus; Fault Displays Of The Bus/Power Leds - Festo CPV..-DI01 series Electronic Manual

3. Diagnosis PROFIBUS−DP

3.1.2 Fault displays of the BUS/POWER LEDs

LED Colour
POWER out
POWER green
flashes fast
POWER green
flashes slowly
Tab. 3/2: Fault diagnosis with the green POWER LED
3−4
Fault diagnosis with the green LED (POWER)
Operating status
Operating voltage for electronics
not applied
Load voltage of the CP valves
< 20.4 V
Load voltage of the CP valves
< 10 V
Load voltage faults are always displayed with the green LED
(irrespective of the diagnostic mode set).
If the device−related diagnosis is active, faults will also be
passed on to the master PLC via the field bus.
Fault treatment
Check the operating voltage
·
(pin 1)
Check the load voltage supply
·
(pin 2)
Check the load voltage supply
·
(pin 2)
Festo P.BE−CP−DI01−EN en 0503d