2basic control operations – Lenze 8615E User Manual
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2
Basic control operations
Programming of the frequency inverter enables the drive to be
adapted to your application. The possible settings are arranged in
codes, which are numbered in ascending order and start with the
letter "C". Each code provides one parameter which can be
selected according to the application.
Parameters can be absolute or relative values of a physical unit
(e.g. 50Hz or 50% related to f
dmax
) or numerical codes giving
certain status information (e.g. -0- = controller inhibited, -1-
controller enabled).
In cases where the parameters represent values of physical units,
it is possible that the increment varies.
Example: The maximum field frequency can be set in increments
of 0.1Hz up to 100Hz, and in increments of 1Hz from 100Hz
upwards.
In some codes, parameters can only be read but not changed.
In the factory setting, only those codes are displayed which are
necessary for the most common applications. For activation of the
extended code set see page 99.
2.1
Changing parameters
Each code has a factory set parameter which can be changed.
There are three different ways of selecting another parameter,
depending on the code:
Direct acceptance
The inverter immediately accepts the new parameter, i.e. while you
change it using the UP or DOWN keys. This is possible even when
the drive is running.
Parameters which are immediately accepted are marked with ON-
LINE in the following programming tables.
Example:
Under C050, the inverter shows the momentary field frequency in
Hz. You want to set a maximum field frequency (C011) of 60Hz.