GD200A series VFD Peripheral options and parts
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Note: The input EMI meet the requirement of C2 after adding input filters.
C.8 Braking system
C.8.1 Select the braking components
It is appropriate to use braking resistor or braking unit when the motor brakes sharply or the motor is
driven by a high inertia load. The motor will become a generator if its actual rotating speed is higher
than the corresponding speed of the reference frequency. As a result, the inertial energy of the
motor and load return to the VFD to charge the capacitors in the main DC circuit. When the voltage
increases to the limit, damage may occur to the VFD. It is necessary to apply braking unit/resistor to
avoid this accident happens.
Only qualified electricians are allowed to design, install, commission and operate
on the VFD.
Follow the instructions in "warning" during working. Physical injury or death or
serious property may occur.
Only qualified electricians are allowed to wire. Damage to the VFD or braking
options and part may occur. Read carefully the instructions of braking resistors or
units before connecting them with the VFD.
Do not connect the braking resistor with other terminals except for PB and (-). Do
not connect the braking unit with other terminals except for (+) and (-). Damage to
the VFD or braking circuit or fire may occur.
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