Phocos CX48 Bedienungsanleitung Seite 34

Some equiptment, like relays, gates or motors,
can damage the CX48 controller by magnetic
induction, when it switches off.
To prevent this, reverse connect the diode (such
as 1N5401 .. 1N5408) between LOAD + and
LOAD - as shown in the left diagram.
Then fasten the strain relieves.
Close the terminal lid.
Now you have successfully connected your CX
controller.
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