Load supply [PL]
LED (red,
green)
Meaning
Remedy
Illuminated
green
Load supply PL available.
–
Flashes green
Load supply PL not available.
Check load supply PL.
Flashes red
Load supply PL outside the tolerance
range.
Check load supply PL.
Tab. 36 LED load supply [PL]
Maintenance [MT]
LED (yellow)
Meaning
Remedy
Off
No maintenance needed.
–
Illuminated
Maintenance required in at least one
module in the automation system
CPX-AP.
Carry out the necessary remedial meas-
ures
è
Instructions on the respective
module.
Tab. 37 LED maintenance [MT]
Diagnostics and fault clearance
40
Festo — CPX-AP-I-EP-M12 — 2019-08