Siemens S5-135U/155U - Page 118

4-52
System Manual
C79000-G8576-C199-06
6ES5 955-3LF426ES5 955-3LC42
Output 1
Rated output voltage Vo/pN1 5.1 V DC $ 1.2% 5.1 V DC $ 1.2%
Rated output current Io/pN1 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 0.005% 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 50% to 100% I
i/oN
– overshoot
– settling time
v 3% of V
o/p1
v 5 ms
v 3% of V
o/p1
v 5 ms
Maximum permitted capacity 100 mF 750 mF
Protection and monitoring
Voltage Monitor Monitors voltage for
< 14 V and > 16 V
Monitors voltage for
< 14 V and > 16 V
Overvoltage shutdown V
o/p1
6V $ 5% 6V $ 5%
Undervoltage signal V
o/p1
4.75 V + 3% 4.75 V + 3%
Current limiting for overload 1.0 to 1.2 I
o/pN1
1.0 to 1.2 I
o/pN1
Test sockets for I
o/p1
On front plate (3 V ¢ 18 A)
linearity range:
0.5 V/2.8 A to 3 V/18 A
On front plate (3 V ¢ 40 A)
linearity range:
0.5 V/6.6 A bis 3 V/40 A
Signaling section Signals for SIMATIC S5,
relays “Fan Warning, Fan Alarm,
Warning” 250V/3A
Signals for SIMATIC S5,
relays “Fan Warning, Fan Alarm,
Warning” 250V/3A
Green LED: “5V o.k.” for V
o/p1
LED lights up if
4.75 V < V
o/p1
LED lights up if
4.75 V < V
o/p1
Output 2
Rated output voltage V
o/pN2
DC 24 V (+ 25%, -12.5%) DC 24 V (+ 25%, -12.5%)
Rated output current I
o/pN2
1 A 2.8 A
Total current X2 and front terminals 1 A max. 2.8 A max.
Ripple v 1% of V
o/p2
v 1% of V
o/p2
Spikes v 2% of V
o/p2
v 2% of V
o/p2
Protection and monitoring
Current limiting for overload 1 to 1.3 I
o/pN2
1 to 1.3 I
o/pN2
Green LED “24V o.k.” for V
o/p2
LED lights up if
V
o/p2
> 19.9 V to 21.1 V
LED lights up if
V
o/p2
> 19.9 V to 21.1 V
Maximum permitted capacity 0.2 mF 0.8 mF
Central Controllers and Expansion Units Power Suppl
y
Unit
s