Siemens 6GA7202-2AA10-1BF1, Operating Instructions Manual, Page: 19 / 168

Connecting the 24 V DC power supply
CAUTION
Connection to the 24 V DC power supply
The device should only be connected to a 24 V DC power supply that satisfies the requirements
of safe extra low voltage (SELV).
An NEC class 2 power source is required in order to comply with UL requirements (according to
UL 60950-1). This applies to operation:
• On a wall
• In an open rack
- or -
• In any other place
In all other cases (according to IEC/EN/DIN EN 60950-1), either a power source of limited
performance (LPS = Low Power Source), or a line-side fuse or a line-side power switch is
necessary.
24 V DC supply voltage (19.2 to 28.8 V)
The generation of the 24 V DC supply voltage by a line-side power supply must be implemented
as functional extra-low voltage with safe electrical isolation (floating) according to
IEC 80364-4-41, or as SELV according to IEC/EN/DlN EN 60950-1 and LPS/NEC class 2.
Connecting the 230 V AC power supply
WARNING
Risk of electric shock
The retroreflective reflectors for the outdoor crane are equipped with 230 V AC foil heaters.
These are mounted inside the housing.
Work on the retroreflective reflectors is only permitted in the no-voltage state. The foil heater
must not be damaged.
Danger from falling objects
WARNING
No persons in the area below the crane
Injuries may be caused by falling parts. Persons are not permitted to stand underneath the
crane during installation work for this reason.
The installation must be performed according to the installation instructions.
Safety instructions for SIMOCRANE CenSOR
SIMOCRANE CenSOR
Operating Instructions, 07/2021
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