Siemens CU240S DP Operations Instructions Page 37

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Commissioning (software)
2.7 Commissioning modes
Control Units CU240S
Operating Instructions (Compact), 04/2006, A5E00766042B AA
2-17
In addition, to carrying-out all of the installation work, an important prerequisite for successful
commissioning is that the Inverter is not disconnected from the line supply while being
parameterized. If a line supply failure interrupts commissioning, then inconsistencies can
occur regarding the parameterization. In this case, it is important that the commissioning is
re-started, possibly with a factory reset to establish the original factory settings.
Notice
Behaviour of inverter on completion of commissioning
The following behaviour should be taken into account when commissioning the inverter:
standard commissioning with P0014 = 0:
Parameters are only stored in RAM. RAM -> EEPROM can be started:
with OP: via setting P0971 = 1
with SATRTER in the online mode: via pressing
RAM -> EEPROM will automatically be performed when starting data transfer from
inverter to MMC (P0802 = 2).
standard commissioning with P0014 = 1:
All parameter changes will be saved in both RAM and EEPROM.
While commissioning the fail-safe functions - only possible with a CU240S DP-F - the
relating parameters are automatically stored in RAM and EEPROM
Data from EEPROM can be transferred to MMC via P0802 = 2.
Parameters can be changed independent whether an MMC is plugged in or not.
Depending on the settings in P8458 after power cycle the parameters from EEPROM or
MMC are used for start up. The customer has to take of the proper settings of P8458.
P8458 = 0, no automatic parameter download from the MMC.
P8458 = 1, automatic parameter download from the MMC only at the first start-up of
the CU with plugged-in MMC
P8458 = 2, automatic parameter download from the MMC after each start-up of the
CU with plugged-in MMC.
Warning
In case of automatic parameter download from the MMC at start up, F0395 will be
generated.
In standard applications a confirmation test, in fail-safe applications an acceptance test has
to be performed.
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