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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 inverter to charge the capacitors in the
main DC circuit. When the voltage increases to the limit, damage may occur to the inverter. 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 inverter.
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 inverter
or braking options and part may occur. Read carefully the instructions
of braking resistors or units before connecting them with the inverter.
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 inverter or braking circuit or fire may occur.
Connect the braking resistor or braking unit with the inverter according
to the diagram. Incorrect wiring may cause damage to the inverter or
other devices.
Goodrive200 series inverters below 30kW (including 30kW) need internal braking units and
the inverters above 37kW need external braking unit. Please select the resistance and
power of the braking resistors according to actual utilization.
Note:
Select the resistor and power according to the provided data.
The braking torque may increase because of the raising of braking resistor. The below table
is calculated at 100% of the braking torque, 10%, 50% and 80%of the braking usage ratio.
The user can select according to the actual working.
Refer to the operation instructions of braking units when using external units for right setting
of voltage degree. Otherwise normal operation of the inverter may be impacted.
The inverter
Braking unit
type
100% of
braking
(Ω)
The consumed power of the
braking resistor
Mini
Braking
Resistor
(Ω)
10%
braking
50%
braking
80%
braking
GD200-1R5G-4
Internal braking
unit
326 0.23 1.1 1.8 170
GD200-2R2G-4
222 0.33 1.7 2.6 130
GD200-004G/5R5P-4
122 0.6 3 4.8 80
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