Other Connections; Dv/Dt Filter With Voltage Peak Limiter (Option L10) - Siemens SINAMICS S150 Operating Instructions Manual

4.9

Other connections

Depending on the options installed, further connections have to be established, for example,
dV/dt filter, sinusoidal filter, connection for external auxiliary equipment, main circuit breaker
including fuses or circuit breaker, EMERGENCY STOP button, cabinet illumination with
service socket, anti-condensation heating for cabinet, contactor combination (EMERGENCY
STOP), thermistor motor protection unit, PT100 evaluation unit, insulation monitor, encoder
evaluator, and NAMUR option.
Detailed information on connecting these options with interfaces can be found in "Additional
Operating Instructions" in the documentation folder.
4.9.1

dV/dt filter with Voltage Peak Limiter (option L10)

Description
The dV/dt filter with Voltage Peak Limiter comprises two components: the dV/dt reactor and
the Voltage Peak Limiter, which limits transients and returns the energy to the DC link.
The dV/dt filter with Voltage Peak Limiter is designed for use with motors for which the
voltage strength of the insulation system is unknown or insufficient. Standard motors of the
1LA5, 1LA6 and 1LA8 series only require them at supply voltages > 500 V +10%.
The dV/dt filter with Voltage Peak Limiter limits the voltage gradient to values < 500 V/µs and
the typical transients to the values below (with motor cable lengths of < 150 m):
● < < 1000 V at U
● < 1250 V at 660 V < U
Depending on the converter power, option L10 can be accommodated in the drive converter
cabinet unit or an additional cabinet with a width of 400 mm or 600 mm is required.
Drive converter cabinet units
Operating Instructions, 07/07, A5E00288214A
< 575 V
line
< 690 V.
line
Electrical installation
4.9 Other connections
67