Checking The Permissible Power Supply Rating - Siemens SIMODRIVE 611 digital Configuration Manual

1 Overview of the Drive System
1.3 Engineering a drive
Selection example
1.3.6

Checking the permissible power supply rating

1-36
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The POSMO with gray background listed in Table 1-3 are to be connected with
a coincidence factor of 1.
----> equivalent capacitance: 600 µF + 600 µF = 1200 µF at 5 kW, 10 kW, 16 kW
----> equivalent capacitance: 1740 µF + 1740 µF = 3480 µF at 28 kW to 120 kW
----> power drain: 1.6 kW + 4.4 kW = 6.0 kW
For this particular example, a 10 kW UI or 16 kW I/R can be used.
Note
You can also obtain a free Microsoft Excel program for calculating the DC link
capacitance via the Internet.
For this purpose, please follow the instructions below:
Go to http://www.automation.siemens.com and click "Service & Support".
S
S Enter "20020605" on the displayed page, and confirm.
S The small Excel program "Configuration_SD_611_00(1)_00.xls" that is now
offered can be started online or downloaded to a computer.
The infeed or monitoring module offers a basic power supply rating for the elec-
tronic points (EP values) and gating points (AP values).
The power supply requirement of a drive group is determined using the follow-
ing tables.
Enter the total number of all of the modules to be used. Calculate the product of
"Assessment factor single module" and "Number of modules".
If one of these values is exceeded, an (additional) monitoring module must be
provided. The following tables must then be again applied for the module group
that is supplied from the monitoring module.
The monitoring module must be mounted to the left in front of the modules to be
monitored.
SIMODRIVE 611 Configuration Manual (PJU) - - 05/2008 Edition
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