CT100 series inverters Installation and wiring
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safety and good ventilation when installing the braking resistor because its
temperature will rise during energy consumption.
When connecting the braking unit, do not connect (+) and (-) reversely or
connect (+) and (-) with the braking resistor directly. Otherwise, damage to the
inverter or a fire may occur.
3.7.3 Motor wiring of main circuit
1. Output reactor
When the distance between the inverter and the motor exceeds 50m, the
leakage current is too large due to the parasitic capacitance effect caused by the
long cable to the ground, so the inverter easily comes to frequent overcurrent
protection. Meanwhile, in order to avoid the motor damage, the output reactor is
needed for compensation.
2. Output noise filter
The output noise filter can reduce the radio noise due to the cable between the
inverter and the motor and the leakage current of the conductor, as shown below:
Figure 3-17 Motor wiring of main circuit
3. Feedback unit
The feedback unit can feed back the energy to the grid generated by the motor in
the regenerative braking state. The feedback unit is widely used in the oil
pumping unit, centrifugal machine, hoister etc.
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