Name Designation Color Description
H2 PNSync Green Lit: Task system is synchronized to the bus cycle clock.
O: Task system is not synchronized to the bus cycle clock.
Flashes 0.5 Hz: Task system has synchronized to the bus cycle clock and cyclic data ex‐
change is running.
H3 PNFault Red O: Module is operating without error.
Lit: A system error has occurred (faulty module, incorrect parameterization by the PROFI‐
NET controller, etc.).
H4 DIAG1 Green Reserved
H5 DIAG2 Green Reserved
H6 OVTemp Red Overtemperature display
Note
When the system is booting, LEDs H1, H2 and H3 are lit.
12.2.2 Mounting
The I/O module can be fastened to the wall of the control cabinet using a mounting plate and M6
screws. The module must be installed according to EN 60204.
NOTICE
The I/O module can be damaged if there is no ground connection
A protective conductor must be connected using the grounding screw.
Note
The type plate is tted to the rear side of the mounting plate. Note the relevant data because it
is no longer visible after installation.
Connectable components
12.2 PP 72/48D PN
NCU 1740
112 Equipment Manual, 10/2021, A5E51087503B AA
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