Phoenix Contact 1624130, Руководство пользователя

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Mounting and connecting the hardware
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4.9.3 Supply voltages
4.9.4 Bridges
NOTE:
The 24 V supply voltages (U
M
, U
L
, U
S
) feature elements that protect against polarity re -
versal and transient overvoltage.
They do
not feature elements that protect against short circuit.
• The user must provide short-circuit protection. The rating of the fuse connected up -
stream must be such that the maximum permissible load current of 8 A is not exceed -
ed (total current at U
M
and U
S
).
Terminal points 1.1 ... 1.3 and 2.1 ... 2.3 of the input connector are bridged internally and
can be used to supply sensors. See Section “Digital inputs” on page 21 .
Terminal points 1.2 ... 1.4 and 2.2 ... 2.4 of the output connector are bridged internally and
can be used as the reference potential for the outputs. See Section “Digital outputs” on
page 23 .