Servicing And Maintenance; Behavior Of The Frequency Inverter When Replacing Components - Siemens SINAMICS G120 Operating Instructions Manual

Servicing and maintenance

6.1

Behavior of the frequency inverter when replacing components

Components should be replaced by the same type and the same version
To ensure maximum plant availability, the Control Unit and the Power Module can, when
required, be replaced by a unit of the same type and the version without having to
recommission the drive.
A memory card with a valid parameter set is required when replacing a Control Unit without
having to re-commission it.
The details are described in the following sections.
Note
Valid parameter set
A valid parameter set is a parameter set that matches the type and software release of the
Control Unit and that has been adapted to fit the particular application.
Message F0395
When switching-on the unit for the first time after replacing the Control Unit or Power
Module, message F0395 is always displayed on the BOP (the SF on the CU lights up).
The message indicates that components were replaced. In this case, when switching-on the
motor, check the direction of rotation and the response to control signals.
Replacing different components or version
If you replace different components (e.g. Profibus CU for Profinet CU) or components with
different software releases, then the drive must always be re-commissioned.
Questions that can arise in conjunction with replacing components:
● How do I create a valid parameter set?
● Which options are available for saving a valid parameter set? You can save a valid
● How do I load a valid parameter set into my inverter?
Note
Standard commissioning
As a result of the similarity in the procedure to replace components, the standard
commissioning with memory card is also described in this chapter.
CU240S and CU240E Control Units, FW 3.2
Operating Instructions, 03/2009, A5E02440075B AA
When commissioning, you can create a valid parameter set either using the
commissioning toolSTARTER (Page 58) or using the operator panel (Page 71).
parameter set either on the memory card (Page 77) or on the computer (Page 58) that
you use for commissioning with STARTER.
From the memory card when the inverter is powered-up or by manually downloading a
parameters set either from the memory card (Page 78) or from the PC (Page 58).
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