3.2.1
Example of how to select a configuration
The
direction
of rotation of the motor in a
System
is to be
determined by the sign of the analog
setpoint (O...+iOV
for CW
rotating field,
O...lOV
for CCW rotating field).
A closed-loop
Speed
control is to be used, for
which
a DC
tacho
serves as act. value. A
setpoint
2 is not used.
The corresponding configuration
tan
be determined as follows:
The table “Closed-loop
Speed
control” contains two configurations
where the
setpoint
1 is provided analog as bipolar setpoint. These
are the Parameters -1
l-
and
-13-.
The desired closed-loop
Speed
control using DC tachogenerator is possible with Parameter
-1
i-.
The
setpoint
2 via terminals
1
and 2 is
active,
but is not
required. Therefore its influence must be set to zero as
protection
from
setpoint
couplings. Please observe the
notes
on page 68.
--_
63
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