6-18
Cn065/Cn068/Cn071/Cn074/Cn077 Notch Filter Depth (First/ Second/ Third/
Fourth/ Fifth Set)
Initial Value Unit Setting Range Effective RS-485 Address
0 -- 0 ~ 1000 Effective after Set Each Parameter is different
Setting Description: Used to adjust the frequency depth to be suppressed, the smaller the value of the
Cn065/068/071/074/077, the deeper the frequency depth of suppression, the user
can adjust according to the actual situation.
Attention
• When notch filter (Cn013, Cn066, Cn069, Cn072 & Cn075) is set to zero, Notch filter is not
used.
• Only change notch filter (Cn013, Cn066, Cn069, Cn072 & Cn075) when the motor is stopped.
Vibration may be generated when the change is made while the motor is under operation.
• DO NOT set notch filter (Cn013, Cn066, Cn069, Cn072 & Cn075) close to speed circuit
response frequency. Please set a frequency which is at least 4 times of speed circuit gain
(Sn211) (Under the condition when the setting of Cn025 (load inertia ratio) is correct). Incorrect
setting may result in vibration which leads machine damage.
• DO NOT touch the servo motor or machine when automatic mechanical resonance suppression
is under operation; fail to follow this instruction could lead to personnel injury.
There are several methods used for this Device Resonance Suppression:
(1) Use panel keys to run automatic mechanical resonance suppression enablement selection
parameter to look for suppression frequency
1. Set Cn064 (mechanical vibration detection level) according to requirement (recommend setting
larger than 50)
2. When system suppression occurs, set Cn063.0 (automatic mechanical suppression enablement
selection)=1~5 to enable automatic detection of mechanical vibration frequency.
3. When finding the resonance point, it will be stored in the driver and return Cn063.0 to 0
automatically (Disable automatic detection of mechanical vibration frequency ); if the resonance
point cannot be found, Cn063.0 (Disable automatic detection of mechanical vibration frequency)
will return to 0 automatically after searching for resonance frequency for a period of time.
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