Siemens Second Wind Function Manual page 35

Injury or material damage
Configure the 24 VDC supply for the charging station correctly, otherwise components of
your automation system can be damaged and persons may be injured.
Use only voltage generated as protective extra-low voltage (PELV) for the 24 VDC supply
of the charging station.
CAUTION
Safe electrical separation
Use only power supply units with safety isolation complying with IEC 60364-4-41 or
HD 384.04.41 (VDE 0100, Part 410), for example according to the PELV standard, for the
charging station's 24 VDC supply.
The supply voltage must be within the specified voltage range. Malfunctions in the charging
station may otherwise result.
Applies to non-isolated system design:
Connect the connection for GND 24 V from the 24 V power supply output to equipotential
bonding for uniform reference potential.
The following table shows the technical data of the supply voltage for the charging station:
Nominal voltage
Range, permissible
Transients, maximum permissible
Time between two transients, minimum
Current consumption with Mobile Panel
•
•
•
Current consumption with Mobile Panel and batteries in
charging compartment
•
•
•
Fuse, internal
Connection to the supply voltage
Wire the supply voltage to the cable terminal box included with the charging station using a
3-wire flexible cable (0.75 mm²). For additional information, refer to the operating instructions
of the HMI device.
Fail-safe operation of the Mobile Panel 277F IWLAN
Function Manual, 08/2008, 6AV6691-1FQ01-2AB0
WARNING
Typical
Constant current, maximum
Power on current surge I
2
Typical
Constant current, maximum
Power on current surge I
2
t
t
Safety instructions, standards and notes
+24 VDC
19.2 V to 28.8 V (–20 %, +20 %)
35 V (500 ms)
50 sec
Approximately 1.5 A
•
Approx. 1.8 A
•
Approx. 1.7 A s
•
2
Approximately 2.8 A
•
Approximately 3.4 A
•
Approximately 1.7 A
•
Electronic
2.4 Power supply
s
2
35