Sensor Supply At An Input Module - Festo CDVI-DN Manual

3. Diagnostics

3.4.2 Sensor supply at an input module

3-14
The outputs can be reused afterwards. The outputs are
switched off again if the short circuit/overload still prevails.
If there is a short circuit, overload or voltage fault in the sen-
sor supply:
– The sensor supply for all inputs of the module is switched
off.
– If the green LED "Diag" on the input module is flashing
quickly,
– the error bit V
sen
to logical "1."
Note
The inputs cannot be used again until the short circuit or
overload has been eliminated and the error deleted.
Deleting the error/short circuit/overload
You can delete the error in one of the following ways:
Briefly interrupt the CP connection at the CP input module
•
or
Briefly interrupt the operating voltage of the CP system on
•
the CDVI-DN.
The inputs can then be queried again. The error is indicated
again if the short circuit/overload still exists.
With module CP-E16-M8-Z:
The short circuit/overload is automatically reset and the
voltage switched on again.
(bit 4 in the DeviceNet status byte) is set
Festo P.BE-CDVI-DN-EN en 0805a