Lenze 9400 - Manual (Page 763)

Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06
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14 Parameter reference
14.2 Parameter list | C00276
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C00276
C00280
C00281
C00308
Parameter | Name:
C00276 | Signal source - torque setpoint
Data type: UNSIGNED_16
Index: 24299
d
= 5EEB
h
Selection list (Lenze setting printed in bold) Info
0 TorqueAdd/AccAdd signal
1 Differentiated SpeedSet signal
2 2x diff. PosSet signal
3 Differentiated SpeedAdd signal
From software version V5.0
This alternative selection to the differentiated SpeedSet
signal is recommended if the position controller works
with a high gain.
By the position controller also troubles within to the
actual position value are detected and like this reach the
speed setpoint. In the following differentiation of the
feedforward control, these troubles in particular in the
case of high position controller gains result in a very
unsettled torque feedforward control value. By means of
this selection the problem can be avoided, because then
only the trouble-free speed feedforward control value is
differentiated.
 Read access  Write access  CINH  PLC STOP  No transfer Scaling factor: 1
Parameter | Name:
C00280 | Filter time const. DC detection
Data type: UNSIGNED_32
Index: 24295
d
= 5EE7
h
Setting range (min. value | unit | max. value) Lenze setting
1.0 ms 1000.0 25.0 ms
 Read access  Write access  CINH  PLC STOP  No transfer Scaling factor: 10
Parameter | Name:
C00281 | Filter for PWM adjustment
Data type: UNSIGNED_8
Index: 24294
d
= 5EE6
h
From software version V7.0
The output voltage of the inverter is generated from the DC-bus voltage by a pulse width modulation (PWM). The
product from the DC-bus voltage and the control factor of the PWM corresponds to the height of the output voltage.
If the DC-bus voltage changes due to mains fluctuations or load changes, the control factor of the PWM must be
adapted if the output voltage is to remain constant. This correction is carried out in the control software by
measuring the DC-bus voltage. In order that no response takes place to faults in the DC-bus voltage measurement,
a filter can be activated for the measured signal via this parameter.
• The filter time constant is selected so that a quick correction can be carried out even under bad EMC conditions.
• A disadvantage of this filter is that the responses to real flickers on the DC-bus voltage are too slow. In
positioning tasks, this may cause an extreme increase of the following error.
• Under good EMC conditions, this filter is not required (Lenze setting).
• For devices > BF7 the filter is ineffective.
Selection list (Lenze setting printed in bold)
0 Deactivated
1 Activated
 Read access  Write access  CINH  PLC STOP  No transfer Scaling factor: 1
Parameter | Name:
C00308 | Service code
Data type: UNSIGNED_16
Index: 24267
d
= 5ECB
h
This code is for device-internal use only and must not be written to by the user!