HD2 Series Inverter Optional Peripheral Accessories
-380-
Accessory for signal transmission
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 inverters and can restrict
high-order harmonics, and of which the rated
sensitive current for one inverter is larger than
30mA.
Accessories used to improve the current
adjustment coefficient on the input side of the
inverter, and thus restrict high-order harmonic
currents.
The 380V 132kW and higher inverter models and
all 660V inverter models can be directly
connected to external DC reactors.
Accessory that restricts the electromagnetic
interference generated by the inverter and
transmitted to the public grid through the power
cable. Try to install the input filter near the input
terminal side of the inverter.
Braking unit or
braking resistor
Accessories used to consume the regenerative
energy of the motor to reduce the deceleration
time.
The 380V 37kW and lower inverter models only
need external braking resistors. The 380V 132kW
and higher and all 660V inverter models also
need braking units. The 380V 45kW–110kW
inverter models can be configured with built-in
braking units.
Accessory used to restrict interference generated
in the wiring area on the output side of the
inverter. Try to install the output filter near the
output terminal side of the inverter.
Accessory used to lengthen the valid
transmission distance of the inverter, which
effectively restrict the transient high voltage
generated during the switch-on and switch-off of
the IGBT module of the inverter.
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