Festo CPV-GE-DN3-8 Series Manual page 26

6 Diagnostics using LEDs
LED Operating status and fault display
PS Operating
(green) (green) voltage supply voltage supply
(pin 1)
PL Load voltage
(green) supply (pin 2)
MNS Bus fault
(red/
green) green)
P
Other error
( d) (red)
26
flashes: Undervoltage
off: Operating voltage not applied
flashes fast: Undervoltage in valves of
CPV Direct
flashes slowly: Undervoltage in valves/
outputs in the CP string extension
off: Load voltage is not applied.
flashes green: Configuration error, no
connection to the field bus
flashes red: Connection Time−Out,
master error
lights red: Communication error,
hardware fault
flashes red/green: Specific communication
error (field bus)
flashes fast: Configuration fault in CP string
flashes slowly: Module in the CP string has
diagnostics case
lights: Module failure in the CP string
Festo CPV...−GE−DN3−8 0709NH English