Power Balance Calculation - Siemens SIMATIC S7-1500 System Manual
Automation system
Hide thumbs
Also See for SIMATIC S7-1500:
- System manual (523 pages) ,
- Function manual (402 pages) ,
- Manual (188 pages)
Table of Contents
Advertisement
3.4
Power balance calculation
Principle of power balance c alculation
In order to ensure that modules are supplied from the backplane bus, the fed-in power is
compared with the power required by the modules. The power balance calculation checks
whether the power provided by the system power supplies including CPU/interface module is
greater than or equal to the power used by the consumers (modules).
In order to operate the configuration with its used modules, the power balance must be
positive for each power segment in use.
This means that the power fed into the power segment is greater than the power consumed
by the modules.
Take care even during planning, that the power fed into the backplane bus is always greater
than or equivalent to the power drawn. The TIA Selection Tool
(http://w3.siemens.com/mcms/topics/en/simatic/tia-selection-tool) aids you during planning.
The power fed into the backplane bus by the CPU/interface module and system power
supply is listed in the technical specifications of the CPU/interface module in the
corresponding manuals.
The power consumed from the backplane bus by an I/O module or the CPU/interface module
can be found in the technical specifications in the corresponding manuals.
The power balance calculation is performed:
● When configuring with STEP 7
● During operation by the CPU
Automation system
System Manual, 09/2016, A5E03461182-AD
Application planning
3.4 Power balance calculation
45
Hide quick links:
Advertisement
Table of Contents
