Magnetek IMPULSE G+ Mini, Техническое руководство

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IMPULSE
®
•G+ Mini Technical Manual
November 2020
Page 84
5.3.6 Carrier Frequency
5.3.7 Hunting Prevention
Occasionally, in an application, resonance between the internal control system and the mechanical system causes
current instability. This is called hunting, and may cause a crane to vibrate at a lower speed (up to 30 Hz) and light
load. The hunting prevention function monitors the motor flux and attempts to “smooth out” any peaks in the output
current wave form.
Increase D11.02 when hunting is present while driving a light load. Decrease D11.02 when the motor vibrates or
stalls while driving a heavy load. The D11 parameters are only available in V/f control (A01.02 = 00).
Parameter Name Function Range Default
D10.01 Normal/Heavy Duty Selects the duty, which affects the
overload rating 00, 01 00
00 Heavy Duty
01 Normal Duty
D10.02 Carrier Frequency Selection Carrier Frequency Selection 01–0F 01
01 2 kHz
02 5.0 kHz
03 8.0 kHz
04 10.0 kHz
05 12.5 kHz
06 15.0 kHz
07 Swing PWM1
08 Swing PWM2
09 Swing PWM3
0A Swing PWM4
0F Custom (determined by the
settings of D10.03~D10.06)
D10.03 Carrier Frequency Max Carrier Frequency Upper Limit 1.0–15.0 kHz 2.0
D10.04 Carrier Frequency Min Carrier Frequency Lower Limit 1.0–15.0 kHz 2.0
D10.05 Carrier Frequency Gain Carrier Frequency Gain 00–99 00
D10.19 2/3 Phase Modulation Sets the 2/3 phase switchover frequency 0.0-60.0 Hz 30.0
Parameter Name Function Range Default
D11.01 Hunt Prevention Selection Enable/Disable Hunt Prevention function 00, 01 01
00 Disable
01 Enable
D11.02 Hunt Prevention Gain Hunting Prevention Gain 0.00–2.50 1.00
D11.03 Hunt Prevention Time Constant Hunting Prevention Time Constant 000–500ms 10
D11.05 Hunt Prevention Gain in Reverse Reverse Hunting Prevention Gain 0.00–2.50 0.00