4-245
Figure 4.4.90 Stamping Operation
Over-voltage prevention (OVP) function monitors the DC-bus voltage and adjusts the speed reference,
acceleration and deceleration rate, to prevent the inverter from tripping on an overvoltage.
When the speed reference is reduced, the motor will start to decelerate. When the inverter is operating at a fixed
output frequency and excessive regenerative energy back to the inverter is detected the inverter will accelerate
the motor in order to reduce the DC-bus voltage. Refer to figure 4.4.91.
Figure 4.4.91 OVP operation
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