Automation and Drives - SCE
T I A Training Document Page 48 of 147 Module
H01
Issued: 02/2008 Frequency Converter SINAMICS G120 on PROFIBUS DP and PROFINET
Preface Notes Startup with PROFIBUS Startup with PROFINET Program Example
3.5.1.5 Starting Performance of the SINAMICS G120
After the initial latching of the control unit onto the power module, the devices recognize each other.
As an indication that the power module and the control unit were initially not identified, the message
F0395 is displayed.
After confirming the message, you can begin with the startup.
For control units (CUs) without a failsafe function, F00395 is confirmed in one of the following ways:
● By a reset to the factory setting
● Using the function key FN on the BOP
● Digital input or PLC signal “Acknowledge“ (depends on the setting of P0700)
● Setting P7844 = 0
A standard power-up is a start after switching the unit on/off, or if power fails. It can be performed
with or without the MMC.
Standard start without MMC
After a load cycle or a power failure, the converter copies the parameters from the EEPROM to the
RAM.
Standard start with MMC
The CPU automatically recognizes the MMC.
The power-up is controlled via P8458 as follows:
P8458 = 0: No automatic download of the parameters by the MMC.
P8458 = 1: One-time automatic download of parameters from the MMC (at the next power-up of the
CPU (factory setting)). After the download, P8458 is set to 0 to prevent additional automatic
parameter downloads.
P8458 = 2: Parameters are loaded automatically from the MMC (if present) after each power-up of
the control unit.
The MMC can be removed after the download is completed. If no MMC is inserted, the converter
powers up -without alarm indication or error message- with the parameters stored in the EEPROM,
even if P8458 is set to 1 or 2.