Lenze i700 - Manual (Page 115)

Lenze · i700 servo inverter · Reference manual · DMS 1.5 EN · 03/2014 · TD05
115
5 Motor control & motor settings
5.11 Setting control loops
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0x2904 | 0x3104 - Speed: Actual speed - filter time
Time constant for actual speed filter
• In order to maximise the dynamics of the speed control loop, the actual speed filter should be operated with a
time constant as low as possible. The lower the time constant the higher the gain of the speed controller. Since
actual value filters have the task to dampen measuring errors or interference components, it must be found a
compromise between filter task and the resulting delay.
• When a Lenze motor is selected, a starting value is automatically preset for the time constant in order that most
of the applications will be feasible. Modifications required for individual cases have to be determined
empirically, e.g. due to
• higher requirements in the drive dynamics,
• lower quality of the encoder signals,
• very long encoder cables.
Setting range (min. value | unit | max. value) Lenze setting
0.0 ms 50.0 0.6 ms
 Write access  CINH  OSC  P  RX  TX Scaling: 1/10 UNSIGNED_16