Festo CPX-AB Series Electronic Manual page 192

5. Analogue output module CPX−2AA−U−I
5−36
Please note
Please note the following when using the output modules:
If there is a short circuit, all actuator supplies of the
module will be switched off together.
If not parametrized otherwise, the actuator supply
voltage will be switched on again automatically when
the short circuit is eliminated.
Festo P.BE−CPX−AX−EN en 0503b