Kruger Ecowatt Drive K120 Series, Operation Manual

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Ecowatt ® Drive K120 series Optional peripheral accessories
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Image Name Description
Cable Accessory for signal transmission.
Breaker
Device for electric shock prevention and
protection against short-to-ground that may
cause current leakage and fire. Select
residual-current circuit breakers (RCCBs) that
are applicable to VFDs and can restrict
high-order harmonics, and of which the rated
sensitive current for one VFD is larger than 30
mA.
Input
reactor
Accessories used to improve the current
adjustment coefficient on the input side of the
VFD, and thus restrict high-order harmonic
currents.
Input filter
Accessory that restricts the electromagnetic
interference generated by the VFD and
transmitted to the public grid through the power
cable. Try to install the input filter near the input
terminal side of the VFD.
Braking
resistor
Accessories used to consume the regenerative
energy of the motor to reduce the DEC time.
The VFD models need only to be configured with
braking resistors.
Output
filter
Accessory used to restrict interference generated
in the wiring area on the output side of the VFD.
Try to install the output filter near the output
terminal side of the VFD.
Output
reactor
Accessory used to lengthen the valid
transmission distance of the VFD, which
effectively restrict the transient high voltage
generated during the switch-on and switch-off
of the IGBT module of the VFD.
Membrane
of heat
releasing
holes at
the side
Accessory applied in severe environment
scenarios for improving protective effect.
The VFD can be derated by 10% through using
the membrane.