Siemens SIMATIC Panel PC 870 Equipment Manual page 132

Power requirements of
the components
(maximum values)
Power of computing unit
1
) The output voltages of the AC and DC power supplies are identical.
2
) Alternatively to the 5 V, the ISA/PCI slots can also be operated with the same total power
at 3.3 V.
3
) The total power of the +5V and +3.3V voltages may amount to max. 140 W.
Electromagnetic compatibility (EMC)
Noise emission
Interference immunity:
Conducted interference on
the supply cables
Interference immunity on
the signal cables
Interference immunity
against the discharge of
static electricity
Interference immunity
against high–frequency
radiation
Magnetic field
Climatic conditions
Temperature
– operation
– storage/transport
– gradient
Relative humidity
– operation
– storage/transport
*) when using the Celeron 566 processor;
not when using floopy disk and CD–ROM drive
Panel PC 870 Computing Unit Equipment Manual
Edition 12/01
+5V +3,3V
typ. approx. 13 W
EN 55022 class B, EN 61000–3–2 classes D and EN
61000–3–3
± 2 kV
(to IEC 61000-4-4; burst)
± 1 kV
(to IEC 61000-4-5; surge symm.)
± 2 kV
(to IEC 61000-4-5; surge asymm.)
± 1 kV
(to IEC 61000-4-4; burst; length < 3 m)
± 2 kV
(to IEC 61000-4-4; burst; length > 3 m)
± 2 kV
(to IEC 61000-4-5:1995; surge asymm;
length > 20 m)
± 6 kV contact discharge
± 8 kV air discharge
10 V/m 80-1000 MHz, 80% AM (to IEC 61000-4-3)
10 V/m 900 MHz and 1.89 GHz, 50% ED (to IEC 61000-4-3)
10 V 9 kHz – 80MHz (to IEC 61000-4-6)
30 A/m 50 Hz (to IEC 61000-4-8)
tested to DIN EN 60068-2-2:1994, DIN IEC 60068-2-1,
DIN IEC 60068-2-14
+ 5°C to +45°C
+ 5°C to +55°C *)
- 20°C to +60°C
max. 10 K/h; no condensation
tested to DIN IEC 60068-2-3, DIN IEC 60068-2-30,
DIN IEC 60068-2-56
5 % to 80 % at 25°C (no condensation)
5% to 95% at 25°C (no condensation)
Technical Specifications
+12V –5V 5Vaux
–12V
max. approx. 21 W
(to IEC 61000-4-2)
(to IEC 61000-4-2)
A-3