Siemens S5-155U System Manual page 125

Output 1
Rated output voltage U
AN1
Rated output current I
AN1
Basic load
Ripple
Spikes
Static voltage tolerances
- at 95 % load variation
- at 15 % variation of U
E
- at temperature variation / 1K
Dynamic voltage tolerances
at load surge from 50 % to 100 % I
- overshoot
- settling time
Protection and monitoring
Voltage monitor
Overvoltage shutdown U
A1
Undervoltage signal U
A1
Current limiting for overload
Test sockets for I
A1
Signalling section
Green LED: "5 V o.k." for U
Output 2
Rated output voltage U
AN2
Rated output current I
AN2
Total current X2 and front terminals
Ripple
Spikes
Protection and monitoring
Current limiting for overload
Green LED "24 V o.k." for U
Output 3
Rated output voltage U
AN3
Rated output current I
AN3
Ripple
System Manual
C79000-B8576-C199-03
6ES5 955-3LC41
5.1 V DC ± 0.5%
18 A DC
0.5 A
≤ 1% of U
A1
≤ 4% of U
A1
≤ 0.005% of U
A1
≤ 0.0005% of U
≤ 0.02% of U
A1
AN
≤ 3% of U
A1
≤ 5 ms
Monitors voltage for
<14 V and >16 V
6 V ± 5%
4.75 V + 3%
1.0 to 1.2 I
AN1
On front plate (3 V = 18 A)
linearity range 0.5 V/2.8 A
to 3 V/18 A
Signals for SIMATIC S5,
relays: "Fan Warning, Fan
Alarm, Warning" 250 V/3 A
LED lights up if
A1
4.75 V < U
A1
24 V DC (+ 25%, -12,5%)
1 A DC
1 A max.
≤ 1% of U
A2
≤ 2% of U
A2
1 to 1.3 I
AN2
LED lights up if
A2
U > 19.9 V to 21.1 V
A2
15 V DC (± 5 %)
0.5 A DC
≤ 1 % of U
A3
Power Supply Units
6ES5 955-3LF41
5.1 V DC ± 0.5 %
40 A DC
1.6 A typical
3.1 A worst case
≤ 1% of U
A1
≤ 4% of U
A1
≤ 0.08% of U
≤ 0.0005% of U
A1
≤ 0.02% of U
≤ 3% of U
A1
≤ 5 ms
Monitors voltage for
< 14 V and > 16 V
6 V ± 5%
4.75 V + 3%
1.0 to 1.2 I
AN1
On front plate (3 V = 40 A)
linearity range 0.5 V/6.6 A
to 3 V/40 A
Signals for SIMATIC S5,
relays: "Fan Warning, Fan
Alarm, Warning" 250 V/3 A
LED lights up if
4.75 V < U
A1
24 V DC (+ 25%, -12.5%)
2.8 A DC
2.8 A max.
≤ 1% of U
A2
≤ 2% of U
A2
1 to 1.3 I
AN2
LED lights up if
U > 19.9 V to 21.1 V
A2
15 V DC (± 5 %)
2 A DC
≤ 1 % of U
A3
A1
4
A1
A1
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