Dv/Dt Filter (Option L10) - Siemens SINAMICS GM150 Operating And Installation Instructions

Description
3.6 Description of options
3.6.20

dv/dt filter (option L10)

The drive generates pulses at the drive output which have a negative impact on the motor
insulation. The dv/dt filter is used to limit the voltage gradient to max. 1 kV/µs. At the same
time, the dv/dt filter is used to limit the capacitive recharging currents of the motor cables, and
therefore protects the motor insulation system. The dv/dt filter is integrated in the power unit.
①
②
R1,R2,R3
L1, L2,L3
C1,C2,C3
M
N
Figure 3-10
60
Drive
Motor
6 Ω dv/dt filter resistance
20 μH dv/dt filter reactor
1 μF dv/dt filter capacitor
Center of the drive
Center point of the dv/dt filter
Circuit diagram option L10
SINAMICS GM150 6SL3815-2LN41-4AA2
Operating Instructions 04/2017