Central Controllers and Expansion Units Power Supply Units

Safety Specifications

6ES5 955-3NC42

6ES5 955-3NF42

The power supply units comply with safety specifications VDE 0805 / EN 60950 / IEC 950 / VDE 0160 and VDE 0106 Part 101.

Shock protection

Data for EMC in the installed state

Safe electrical separation

only ensured in the installed state.

See technical specifications of the S5-135U/155U CC

is ensured. 1)

Input

Rated input voltage (including ripple)

Input current Ii/p

at rated load and rated Vi/p = 24 V

Polarity reversal protection

Reak inrush current I i/pmax

I@t value of inrush current

Efficiency at rated load (with fans) and Vi/p ¢ 24V

24 V DC (19.2 - 33 V)

9.5A

yes

100 A for 1 ms

2.7A@s

24 V DC (19.2 - 33 V)

20A

yes

200A for 1 ms

18A@s

0.67

Max. heat dissipation at rated load (with fans) at Vo/p1, Vo/p2, Vo/p3

90 W

153 W

Efficiency at rated load (without fans) and Vi/p ¢ 230/120 V AC

0.65

0.70

Max. heat dissipation (without fans)

Stored energy time during power failure at rated load and Vi/p ¢ 19.2 V DC (adjustable)

Input fuse

Extenal battery supply

66 W

>20 ms

20ms

5ms

Littlefuse 322020, 220 A@s

4.5 V

129 W

>20 ms

20ms

5ms

Littlefuse 322030, 620 A@s

4.5 V

Output 1

Rated output voltage Vo/pN1

Rated output current Io/pN

Basic load

5.1V DC $ 1.2% 18 A

0.5A

5.1V DC $ 1.2% 40 A

1.6A (typical)

3.1 A (worst case)

Ripple

Spikes

Static voltage tolerances

±at 95% load variation

±at 15% variation of Vi/p

±at temperature variation / 1K

Dynamic voltage tolerances

at load surge from 50% to 100% Io/pN

±overshoot

±settling time*

v1% of Vo/p1

v4% of Vo/p1

v0.08% of Vo/p1

v0.0005% of Vo/p1

v0.02% of Vo/p1

v3% of Vo/p1

v5 ms

v1% of Vo/p1

v4% of Vo/p1

v0.08% of Vo/p1

v0.0005% of Vo/p1

v0.02% of Vo/p1

v3% of Vo/p1

v5 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.

4-54

System Manual

C79000-G8576-C199-06

Page 120
Image 120
Siemens S5-135U/155U appendix Safety Specifications 6ES5 955-3NC42 6ES5 955-3NF42, Input