Mounting - Siemens SINUMERIK ONE NCU 1740 Equipment Manual

Connectable components
12.2 PP 72/48D PN
Name Designation
H2 PNSync
H3 PNFault
H4 DIAG1
H5 DIAG2
H6 OVTemp
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 fitted to the rear side of the mounting plate. Note the relevant data because it
is no longer visible after installation.
112
Color Description
Green Lit: Task system is synchronized to the bus cycle clock.
Off: 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.
Red Off: Module is operating without error.
Lit: A system error has occurred (faulty module, incorrect parameterization by the PROFI‐
NET controller, etc.).
Green Reserved
Green Reserved
Red Overtemperature display
Equipment Manual, 10/2021, A5E51087503B AA
NCU 1740