Siemens 6RA7086-6KS22 Operating Instructions Manual page 173

05.05
P051 = 28
P051 = 29
SIEMENS AG 6RX1700-0AD76
SIMOREG DC Master Operating Instructions
WARNING
During this optimization run, the drive accelerates to approximately
80% of rated motor speed (the armature voltage corresponds to
maximum 80% of the rated motor armature voltage (P101)).
Optimization run for compensation of friction moment
and moment of inertia (if desired) (process lasts approx. 40s)
The following parameters are set automatically: P520 to P530, P540
WARNING
The drive accelerates up to maximum speed during this optimization
run.
On completion of this run, the friction and inertia moment compensation function
must be activated manually by setting P223=1.
When the operating mode is switched from current control to torque control with
P170, the optimization run for friction and inertia moment compensation must be
repeated.
Note:
The speed controller may not be parameterized as a pure P controller or as a
controller with droop when this optimization run is executed.
Speed controller optimization run on drives with oscillating mechanical
components (takes up to 10 minutes)
The following parameters are set automatically: P225, P226 and P228.
The frequency response of the controlled system for frequencies of 1 to 100 Hz are
recorded during this optimization run.
The drive is first accelerated up to a base speed (P565, FS=20%). A sinusoidal
speed setpoint with low amplitude (P566, FS=1%) is then injected. The frequency
of this supplementary setpoint is changed in steps of 1 Hz from 1 Hz to 100 Hz. An
average is calculated from a programmable number of current peaks (P567,
WE=300) for each frequency.
[The value set in P567 is significant in determining the time taken to perform the
run. With a setting of 300, the run can take about 3 to 4 minutes.]
The optimum speed controller setting for the controlled system is calculated on the
basis of the frequency response measured for the system.
WARNING
This optimization run must not be carried out if the motor is coupled to
a mechanical load which is capable of moving the torque-free motor
(e.g. a vertical load).
Start-Up
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