Siemens SIMATIC S7-1500 System Manual page 21

Components
Shielding bracket
Shield clamp
Power supply element
Labeling strips for the
exterior of the front
cover of the I/O
modules
4-pole connection plug
for supply voltage of
the CPU/interface
module
System power supply
(PS)
Automation system
System Manual, 12/2014, A5E03461182-AC
The shielding bracket is an insertable bracket for modules with
EMC-critical signals (e.g., analog modules, technology modules), and
(together with the shielding clamp) permits the low impedance
application of shielding with minimal installation times.
The shielding bracket is included in the scope of delivery of the analog
and technology modules, and may be ordered as an accessory
(Page 224).
The shield clamps are used to attach cable shielding to the shielding
bracket.
The shield clamp is included in the scope of delivery of the analog and
technology modules, and may be ordered as an accessory
(Page 224).
The power supply element is inserted in the front cable connector, and
serves to supply power to modules with EMC-critical signals (analog
modules, technology modules).
The power supply element (connection technology: screw terminal) is
included in the scope of delivery of the analog and technology
modules, and may be ordered as an accessory (Page 224).
The labeling strips are used to label the modules for specific plants.
You can label the labeling strips using a machine. The labeling strips
are available in various colors.
The labeling strips are included in the scope of delivery of the I/O
modules. Additional labeling strips may be ordered as Accessories
(Page 224).
The supply voltage is supplied by means of the 4-pole connection
plug.
The system power supply is a diagnostics-capable power supply
module, that can be connected with the backplane bus using a U
connector.
A system power supply is required, if the power fed from the
CPU/interface module into the backplane bus is not sufficient to
supply the connected modules with power.
System power supplies are available in various models:
PS 25W 24V DC
•
PS 60W 24/48/60V DC
•
PS 60W 120/230V AC/DC
•
A power cable connector with coding element and U connector is
included in the scope of delivery of the system power supply and may
be ordered as spare part.
Function
System overview
2.3 Components
Diagram
21