Siemens SIMATIC EMS400S PSB-S Operating Instructions Manual page 57

48 V DC power supply
Parameter
Rated voltage
Voltage range
Continuous voltage
Supply interruption
Current consumption
Power loss
Overvoltage category
Transient voltage V
Starting current inrush
Reverse polarity protection
Electrical isolation to the SM-Bus, to digital
inputs, as well as to the 24 V DC and SYNC
inputs
Cable length
Digital inputs
Parameter
Number of inputs
Number of simultaneously activated inputs
Type
Rated voltage
Continuous voltage, permitted
Surge voltage
Signal logical 1
Signal logical 0
Filter time
Electrical isolation, "field to logic"
Electrical isolation to the 48 V DC input
Cable length
PSB modules
Operating Instructions, 03/2014, A5E03474166-03
peak
10.2 Technical specifications
Value
48 V DC
45.6 to 50.4 V DC
DC ≤ 50.4 V
Interruption not permitted
2.2 A
5 W
II
≤ 2 kV
≤ 1 A²s
Yes
1.9 kV DC for 1 minute
< 30 m, unshielded
≥ 30 m, shielded (shield must be connected to PE)
Value
6 inputs in one group
6
Current sinking, IEC type 1
24 V DC
DC ≤ 30 V
35 V DC for 0.5 s
DC ≥ 15 V at 2.5 mA
DC ≤ 5 V at 1 mA
0.2; 0.4; 0.8; 1.6; 3.2; 6.4; 12.8 ms
The filter times relate to the groups of 4 and 2
inputs in the TIA Portal:
1 × 4 inputs DI0 to DI3 and
•
1 × 2 inputs DI4 to DI5
•
500 V DC for 1 minute
1.9 kV DC for 1 minute
500 m, shielded
•
300 m, unshielded
•
Technical specifications
57