Siemens S5-135U/155U - Page 120

4-54
System Manual
C79000-G8576-C199-06
6ES5 955-3NC42 6ES5 955-3NF42
Safety Specifications The power supply units comply with safety specifications VDE 0805 /
EN 60950 / IEC 950 / VDE 0160 and VDE 0106 Part 101.
Shock protection only ensured in the installed state.
Data for EMC in the installed state See technical specifications of the S5-135U/155U CC
Safe electrical separation is ensured.
1)
Input
Rated input voltage
(including ripple)
24 V DC (19.2 - 33 V) 24 V DC (19.2 - 33 V)
Input current I
i/p
at rated load and rated V
i/p
= 24 V 9.5 A 20 A
Polarity reversal protection yes yes
Reak inrush current I
i/pmax
100 A for 1 ms 200 A for 1 ms
I@t value of inrush current 2.7 A@s 18 A@s
Efficiency at rated load (with fans) and
V
i/p
¢ 24V
0.60 0.67
Max. heat dissipation at rated load
(with fans) at V
o/p1
, V
o/p2
, V
o/p3
90 W 153 W
Efficiency at rated load (without fans) and
V
i/p
¢ 230/120 V AC
0.65 0.70
Max. heat dissipation (without fans) 66 W 129 W
Stored energy time during power failure
at rated load and V
i/p
¢ 19.2 V DC
(adjustable)
>20 ms
20 ms
5 ms
>20 ms
20 ms
5 ms
Input fuse Littlefuse 322020, 220 A@s Littlefuse 322030, 620 A@s
Extenal battery supply 4.5 V 4.5 V
Output 1
Rated output voltage V
o/pN1
5.1 V DC $ 1.2% 5.1 V DC $ 1.2%
Rated output current I
o/pN
18 A 40 A
Basic load 0.5 A 1.6 A (typical)
3.1 A (worst case)
Ripple v 1% of V
o/p1
v 1% of V
o/p1
Spikes v 4% of V
o/p1
v 4% of V
o/p1
Static voltage tolerances
– at 95% load variation
– at 15% variation of V
i/p
– at temperature variation / 1K
v 0.08% of V
o/p1
v 0.0005% of V
o/p1
v 0.02% of V
o/p1
v 0.08% of V
o/p1
v 0.0005% of V
o/p1
v 0.02% of V
o/p1
Dynamic voltage tolerances
at load surge from 50% to 100% I
o/pN
– overshoot
– settling time*
v 3% of V
o/p1
v 5 ms
v 3% of V
o/p1
v 5 ms
1) These power supply units have a separation between the input circuit (24 VDC) and the secondary circuit which fulfills the
requirements for 230 VAC.
Central Controllers and Expansion Units Power Suppl
y
Unit
s