14 Inverter Control
The control of the frequency inverter can, in principle, be carried out using three op-
eration modes. These are set via the data set change-over capable parameter L
412.
For operation with CANopen
®
, only the settings 0, 1 and 2 are relevant. The remain-
ing settings relate to the possibilities of control via the KP500 control unit.
0
puts
The Start and Stop command as well as the statement
of the direction of rotation are via digital input signals.
1
state machine
(chapters 14.2, 14.3,
The inverter is controlled by the
Control word
.
Only in this control mode are the
functions supported by
and
modes
of operation
as defined with CANopen
®
2
remote digital inputs
The Start and Stop command as well as the statement
of the direction of rotation are via digital input
signals
emulated by the bits of the
Control word
.
Parameter Local/Remote 412 is data set change-over capable. Thus, it is possible to
switch over between the various control modes via the data set selection.
The data set change-over can be carried out locally on the frequency inverter via
digital inputs or via the bus. For data set change-over via the bus, parameter
Data
set selection 414 is used.
With Data set selection 414 = 0, the data set change-over via digital inputs is active.
If Data set selection 414 has been set to 1, 2, 3, or 4, the corresponding data set
is
activated. Data set change-over via the digital inputs is then disabled.
Via parameter Active data set 249, the currently selected data set can be read out.
Active data set 249
states the activated data set with the value 1, 2, 3 or 4. This is
independent of whether the data set change-over was carried out via digital
inputs or
via Data set selection 414.
164 CM-CAN ACU 04/13