Design - 8200 and 9300 vector

3~ M

Overview of output filters

Output filters should be used to reduce the load on themotor coil, as well as to reduce the capacitive leakage currents to PE that may be caused by the use of long motor cables. Motor filters and sinusoidal filters ensure the safe operation of your drive up to 400 m motor cable length.
Motor filterMotor filterSinusoidal filter Required at and above motor cable lengthShielded50 m100Unshielded100 m200 mMax. motor cable lengthShielded100 m200 mUnshielded200 m400 mMin. chopper frequency4 kHz8 kHzMotor protection (du/dt = 500 V/ s)YesYesMax. field frequency300 Hz 120 Hz DC bus connectionYes- Reduction of line-side radio interferenceLowAverage Note:-If you are using motor cables > 200m (shielded) or > 400m (unshielded), please contact Lenze. -If a number of motors are operating in parallel on the output of one inverter, the following formula should be used to calculate the length of the motor cable:l res= (l1 + l2 + ...ln) * âˆšn l res = resulting lengthl1, l2 = individual motor cable lengths
n= number of parallel motor cables

Lenze