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Technical Specifications
Power Supply Module PS 951 120/230 V AC; 5 V, 7/15 A
SIEMENS
SIMATIC S5
PS
7A/15A
BATT1-BATT2
3.4V/2Ah
Replace by
trained
personnel
EXT BATT
3.4...9V
BATT1-BATT2
LOW
RESET
5V DC
5.2V DC
24V DC
INT DC
POWER
VOLTAGE
SELECTOR
Battery
BATT LOW
RESET
7
5 V
5.2 V
24 V
EXT. BATT
L1
6
5
4
N
INT. DC POWER
PE
4
1
Chopper controller
4
Control electronics
2
Linear controller
5
Rectifier
3
Linear controller
6
Radio interference suppression filter
7
Monitoring electronics
Block diagram
15-10
Technical specifications
Input voltage L1
- Rated value
- Permissible range
Line frequency
- Rated value
- Permissible range
Input current at 120/230 V
- Rated value
- Inrush current
2
- I
t
only!
Power consumption (active power)
Output voltage
- Rated value
+
-
- Tolerance
Output current
- Rated value without fan
- Rated value with fan
- Permissible range
Output voltage (PG/OP)
- Rated value
- Tolerance
Output current
Backup battery
- Backup time
L1
N
Mains buffering
(at L1
Output voltage (auxiliary voltage)
120/230V AC
- Rated value
- Tolerance
Output current
Short-circuit protection
Fault indicator
Signals to CPU
Fuse (primary circuit)
Class of protection
5 V
Galvanic isolation
1
5.2 V
2
Isolation rating
24 V
3
M
- Tested with
Initial discharge current
to VDE 0160 at 230 V AC
RI specifications
Power losses of the module
Weight
max.
min.
)
min.
min
typ.
approx. 1.9 kg (4.19 lb.)
S5-115U Manual
(6ES5 951-7LD21)
120/230 V AC
94 to 132 V
187 to 264 V
50 Hz
47 to 63 Hz
1.4/0.8 A
15×I
N
2
1.8 A
s
133 W
5 V
±1.5%
7 A
15 A
0.3 to 15 A
5.2 V
±1.5%
max. 2.5 A
2 lithium
batteries, size AA
(3.6 V/2x1.75 Ah)
1 year (at 0.3 mA,
25°C and
uninterrupted
backup)
20 ms
24 V
±5%
max. 0.35 A
Electronic
No
Integral
Class 1
Yes
Safe electrical
isolation
according to
VDE 0160
2700 V DC
2.6 mA
A according to
VDE 0871
36 W
EWA 4NEB 811 6130-02b
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