SIPLUS PSU (6DL3500-8BA)
SIPLUS PSU Power Supply Unit
A5E00854207E
7 of 30
Copyright (C) Siemens AG 2018
V 8.00 released
2018-05-03
2 Application
2.1 Utilization
SIPLUS PSU is a power supply module in electronic cabinets for the feeding and sub-distribution of
the power supply DC 24 V. It was developed especially for use in instrumentation and control cabi-
nets of the Siemens power station instrumentation and control systems SPPA-T2000 and SPPA-
T3000 and the Siemens automation system PCS7. It serves for the protected power supply of cabinet
components like racks, fans, heat exchangers, thermostats, door contacts and cabinet lamps.
Figure 1: SIPLUS PSU
The SIPLUS PSU was designed for the installation into electronic cabinets with 19 inch modular de-
sign. By turning the lateral mounting angles by 180° backwards it can also be screwed to rear as-
sembly walls without problems (see Chapter 7 “Commissioning”).
2.2 Functions
The SIPLUS PSU integrates the following functions in a compact unit:
∂
Redundant cabinet feeding power supply DC 24V
∂
Separate branch terminals DC 24V for the power supply of an adjacent cabinet
∂
20 supply outputs for sub-distribution of the DC 24 V supply within the instrumentation and
control cabinet
∂
Fuse Protection of the cabinet sub-distribution
∂
Manual switch-off of every single electrical circuit of the cabinet sub-distribution
∂
Monitoring and signaling of a blown fuse or detection of a failure
∂
Indication of the operating state of all power supply outputs (X1-20) via LED displays
∂
Electrical connection of the ground potential M of the cabinet feeding with cabinet ground
∂
Disconnection of the earth connection for plants with central earth connection point
∂
Flexible installation by lateral assembly brackets with several fixing options
∂
Test of the feeder diodes with power supply in operating state
