Siemens S5-135U/155U Output 2 bus, Output 2 front, Output 3 with 15 V auxiliary submodule, Fans

Central Controllers and Expansion Units Power Supply Units

Output 2 (bus)

Rated output voltage Vo/p2

Rated output current Io/p2

Total current rating 24V-/ 15V output

24 V DC +25% / -20%

0.8 A

v0.8 A

Ripple

Protection and monitoring

Fuse for overcurrent protection Test sockets for Vo/p2

± green LED 15V/24V o.k. for Vo/p2 (fuse monitor)

Input voltage ripple

1.5A fast; 250 V; 6.3 x 32 mm on front plate (24 V test)

The LED lights up when Vo/p2 > 17.9 to 18.5 V

Output 2 (front)

Rated output voltage Vo/pN4

Rated output current Io/pN4

± Capacitive load

Protection and monitoring

Overcurrent protection by current limiting Io/p4 Test sockets for Vo/p2

± green LED 24V o.k. for Vo/p4

Total current rating of 24 V voltages (bus and front)

24 V DC +25% / -24%

0.4 A

< 100 nF

> 0.44 A

on front plate (24 V test)

The LED lights up when Vo/p4 > 16 V $ 20%

must not exceed 0.8 A

Output 3 with 15 V auxiliary submodule

Rated output voltage Vo/pN3

Rated output current Io/pN3

Ripple

Protection and monitoring

Overvoltage protection (output is short-circuited at Vo/p3)

Undervoltage signal (LED 15V/24V o.k. on front plate goes off at)

Overcurrent protection Io/p3 by current limiting

Test socket for Vo/p3

15 V DC $ 5%

0.5 A

v5% of Vo/pN3

w18.5 V

v14 V $ 3% > 0.5 to 1.5 A

on front plate (15 V test)

Fans

Fan type

Input voltage

Flow rate per fan

Fan monitoring

2 axial fans

24 V DC

160 m3/h (no-load value)

Air flow monitoring with PTC thermistors as sensors; stoppage of one or both fans is detected and signaled to the exterior via Fan Fault LED and relay contacts, and results in shutdown of output voltage (switched off via jumper F-R).

Expected service life of a fan

30 000 to 40 000 h typical at 55 oC; 40 000 to 50 000 h typical at 30 oC;

Isolation primary/sekondary and test voltages

No

Weight

Environmental data

RFI suppression

3.75 kg

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

DIN VDE 0871, A

System Manual	4-69
C79000-G8576-C199-06