Siemens SINUMERIK MCU1720 Equipment Manual page 46

Installation
7.1 Safety instructions
NOTICE
Incorrect fixing elements
The device may not be securely fitted if you use anchors and screws other than those
specified below for mounting. The device can fall and be damaged.
Use only the anchors and screws specified in the following table.
Use the following fasteners:
● DIN rail mounting
● Portrait mounting
Control cabinet installation
Please refer to the SINAMICS documentation for more details.
Risk of fire through overheating if there are insufficient ventilation clearances
Inadequate ventilation clearances cause overheating with a risk for personnel due to smoke
and fire. Further, this can result in increased failures and a shorter service life of devices/
systems.
NOTICE
Risk of destroying components resulting from high discharge currents
The MCU or other PROFINET nodes may be destroyed if substantial leakage currents flow
through the PROFINET cable.
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Material
Metal,
at least 2 mm thick
Concrete
Plasterboard,
min. 13 mm thick
Material
Concrete
Plasterboard,
min. 13 mm thick
WARNING
Hole diameter Fastener
5 mm ● 2 x M4 screws
● 2 x M4 nuts
6 mm, 40 mm deep
● 4 x anchors, ∅ 6 mm, 40 mm long
● 4 x screws, ∅ 4 mm, 40 mm long
14 mm 4 x toggle bolts, ∅ 4 mm, 50 mm long
Hole diameter Fastener
6 mm, 40 mm deep
● 4 x anchors, ∅ 6 mm, 40 mm long
● 4 x screws, ∅ 4 mm, 40 mm long
8 mm, 40 mm deep
● Anchor, ∅ 8 mm, 40 mm long
● Screw, ∅ 5 mm, 40 mm long
14 mm Toggle bolt, ∅ 4 mm, 50 mm long
Equipment Manual, 09/2019, A5E47437728B AB
MCU 1720