Inovance MD500T75G - Page 160

7. Description of Parameters MD500 User Manual
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Function Code Parameter Name Setting Range Default
F2-13 ([FLWDWLRQDGMXVWPHQW
proportional gain
0 to 60000 2000
F2-14 ([FLWDWLRQDGMXVWPHQW
integral gain
0 to 60000 1300
F2-15 7RUTXHDGMXVWPHQW
proportional gain
0 to 60000 2000
F2-16 7RUTXHDGMXVWPHQWLQWHJUDOJDLQ 0 to 60000 1300
These function parameters are vector control current loop PI parameters. They are obtained from motor auto-tuning and rarely
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The dimension of the current loop integral regulator is integral gain rather than integral time. Very large current loop PI gain may
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gain.
7.5.10 Improving Field Weakening Area Performance
Function Code Parameter Name Setting Range Default
F2-20 0D[RXWSXWYROWDJHFRHIÀFLHQW 100% to 110% 105%
This parameter indicates the boost capacity of the maximum voltage of the AC drive. Increasing F2-20 will improve the max.
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increase in motor heating.
Decreasing it will reduce the motor current ripple and the motor heating. Be aware that this will lower the max. loading capacity in
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Function Code Parameter Name Setting Range Default
F2-21 0D[WRUTXHFRHIÀFLHQWRI
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50% to 200% 100%
This parameter becomes effect only when the motor runs above the rated motor frequency.
When the motor must accelerate to twice of the rated motor frequency urgently and the actual acceleration time is long, decrease
F2-21 properly.
When the motor that runs above twice of the rated motor frequency sees a big speed drop after a load is added, increase F2-21
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7.5.11 Auxiliary Control
Function Code Parameter Name Setting Range Default
A5-00 DPWM switchover
frequency upper limit
0.00 to 15.00 Hz 12.00 Hz
Increasing this parameter to the max. frequency will reduce the motor noise.
Function Code Parameter Name Setting Range Default
A5-01 PWM modulation pattern 0: Asynchronous modulation
1: Synchronous modulation
0
When the result of dividing the running frequency by the carrier frequency is smaller than 10, the output current oscillation or
large current harmonics will result. In this case, set A5-01 = 0 to reduce the current harmonics.
Function Code Parameter Name Setting Range Default
A5-03 Random PWM depth 0: Random PWM invalid
1 to 10
0
This function parameter aims at lower the unpleasant motor noise and reducing the electromagnetic interference.
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