Datasheet
https://www.phoenixcontact.com/us/produkte/2688051
Nov 14, 201310/11
I/O module-AXL DO 32/1-2688051
Diagram
Maximum energy consumption of the outputs when switching off
inductive loadsThe diagram shows the maximum amount of energy
that may be fed back into the corresponding output groups (outputs
1 to 8, 9 to 16, 17 to 24, 25 to 32) for each switch off procedure when
switching off an inductive load without external freewheeling circuit.The
current data refers to the ohmic DC voltage component of the inductive
load.Note: Restrict freewheeling voltage to a maximum of -17V when
using an external freewheeling circuit. The external freewheeling circuit
has no function in the event of a higher negative voltage.