NSK EDD Megatorque Motor - Setting Notch Filter

5. Tuning
— 5-16 —
4) If the motion of the Motor becomes unstable, press the ＋ key several times to increase the
low-pass filter frequency until it becomes stable
:>
:>FP/AJ
STEP 10
FP 120 _
Pressing
SHIFT
-
+
-
+
…
5) Press the ENT key to complete the setting.
(An input of BS key resets to the original setting.)
:>FP/AJ
STEP 10
FP 120
:>_
ENT
 [Reference] When terminates the low-pass filter
:
:
:FP0
:_
ENT
P
0
?
F
5.5.2. Setting Notch Filter
 When setting the notch filters (NP and NS), you need to measure the resonant frequency by checking the
velocity waveform with the monitoring pins on the front panel of the Driver Unit by means of an
oscilloscope, etc. or the EDD MEGATERM.
 Check the resonant frequency as shown in “Fig 5-3: Measuring resonance frequency”. If the frequency is
200 Hz, type as shown below to set the filter frequency.
0
?
P
2
$
N
ENT
0
?
:
:
:NP200
:_
Fig 5-3: Measuring resonance frequency
Screen of oscilloscope
200Hz（5ms）
Oscilloscope