Power Electronics SD750K, Hardware And Installation Manual

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SD750K POWER ELECTRONICS
44
POWER CONNECTION
EN
SD750 Kompakt integrates external input chokes filters. These filters reduce the THDi values significantly
and increase the impedance line protecting the drive against electrical distortions. The input choke filter
must be installed in the input side, for more information see the Mechanical installation section.
The SD750 Kompakt
includes a power and a control board to control the rectifier thyristor diode’s bridge
shooting, the inverter IGBT’s bridge shooting, the soft charge, the DC bus voltage and the motor
performance. In addition, control board integrates the interface terminals such as communication ports,
the digital and analogue inputs and outputs, color touch-screen display and alphanumeric display, etc.
The inverter bridge generates the PWM wave that controls the motor performance (voltage, current,
torque, etc...). SD750 Kompakt Series by Power Electronics, integrate as standard output dV/dt filters
that reduces significantly the dV/dt rise time below 500V/μs - 800V/μs, therefore, it reduces the voltages
peaks at the motor windings, the common mode currents and the EMC emissions.
It is recommended to install ultra fast fuses that protect the drive against downstream overcurrent. SD700
Kompakt integrates multiple electrical protections that protect the drive and the motor as a motor relay
does.