Kinco CD2S Series, User Manual

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Table 8-3 Parameters for pulse filtering coefficient
Numeric
Display
Variable
Name
Meaning Default
Value
Range
d3.37 PD_Filter Used to smooth the input pulses.
Filter frequency: f = 1000/(2π* PD_Filter)
Time constant: T = PD_Filter/1000
Unit: S
Note: If you adjust this filter parameter during the
operation, some pulses may be lost.
3 1~32767
When a driver operates in the pulse control mode, if the electronic gear ratio is set too high, this
parameter must be adjusted to reduce motor oscillation; however, if the parameter adjustment is too great,
motor running instructions will become slower.
8.2 Oscillation Inhibition
If resonance occurs during machine operation, you can adjust a notch filter to inhibit resonance. If
resonance frequency is known, you can directly set Notch_N to (BW-100)/10. Note that you need to set
Notch_On to 1 to enable the notch filter. If you do not know exactly the resonance frequency, you can firstly
set the max value of d2.14 current instruction to a low one, so that the oscillation amplitude is within the
acceptable range; then try to adjust Notch_N to check whether resonance disappears.
If machine resonance occurs, you can calculate the resonance frequency by observing the waveform of
the target current with the oscilloscope function of the driver.
Table 8-5 Parameters for oscillation inhibition
Numeric
Display
Variable Name Meaning Default
Value
Range
d2.03 Notch_N Notch/filtering frequency setting for a velocity
loop, used to set the frequency of the internal
notch filter, so as to eliminate the mechanical
resonance produced when the motor drives
the machine. The formula is F = Notch_N*10 +
100.
For example, if the mechanical resonance
frequency is F = 500 Hz, the parameter should
be set to 40.
45 0~90
d2.04 Notch_On Enable or disable the notch filter
0: Disable the notch filter
1: Enable the notch filter
0 0~1