Lenze 8400 - Page 184

5 Motor control (MCTRL)
5.5 V/f characteristic control - energy-saving (VFCplusEco)
184
Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23
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Speed variations in no-load operation and with load for
speeds > rated speed.
Minimise speed oscillations with increasing the
oscillation damping field weakening (C00236
).
Caution: If C00236
is increased, the maximum output
voltage of the device is reduced!
Output voltage is too low. There is a too low maximum
torque in the high field weakening range.
Reduction of the oscillation damping field weakening
(C00236
).
Caution: When C00236
= 0, oscillation damping field
weakening is inactive. Thus, a maximum output voltage
is available but the tendency to speed oscillations in the
field weakening range at no-load operation and with
load increases.
Drive behaviour Remedy