7. SPECIAL ADJUSTMENT FUNCTIONS
7 - 12
Step 1. Select "Manual setting (_ _ _ 2)" of "Vibration suppression control 1 tuning mode selection" or
"Manual setting (_ _ 2 _)" of "Vibration suppression control 2 tuning mode selection" in [Pr.
PB02].
Step 2. Set "Vibration suppression control - Vibration frequency" and "Vibration suppression control -
Resonance frequency" as follows.
However, the value of [Pr. PB07 Model loop gain], vibration frequency, and resonance frequency have
the following usable range and recommended range.
Vibration suppression
control
Usable range
Recommended setting range
Vibration suppression
control 1
[Pr. PB19] > 1/2
π
× (0.9 × [Pr. PB07])
[Pr. PB20] > 1/2
π
× (0.9 × [Pr. PB07])
[Pr. PB19] > 1/2
π
× (1.5 × [Pr. PB07])
[Pr. PB20] > 1/2
π
× (1.5 × [Pr. PB07])
Vibration suppression
control 2
When [Pr. PB19] < [Pr. PB52],
[Pr. PB52] > (5.0 + 0.1 × [Pr. PB07])
[Pr. PB53] > (5.0 + 0.1 × [Pr. PB07])
1.1 < [Pr. PB52]/[Pr. PB19] < 5.5
[Pr. PB07] < 2
π
(0.3 × [Pr. PB19] + 1/8 × [Pr. PB52])
When [Pr. PB19] < [Pr. PB52],
[Pr. PB52], [Pr. PB53] > 6.25 Hz
1.1 < [Pr. PB52]/[Pr. PB19] < 4
[Pr. PB07] < 1/3 × (4 × [Pr. PB19] + 2 × [Pr. PB52])
(a) When a vibration peak can be confirmed with machine analyzer using MR Configurator2, or external
equipment.
1 Hz
Gain characteristics
Phase
-90 degrees
300 Hz
Vibration suppression control 1 -
Vibration frequency
(anti-resonance frequency)
[Pr. PB19]
Vibration suppression control 1 -
Resonance frequency
[Pr. PB20]
Vibration suppression control 2 -
Vibration frequency
(anti-resonance frequency)
[Pr. PB52]
Vibration suppression control 2 -
Resonance frequency
[Pr. PB53]
Resonance of more than
300 Hz is not the target of control.
(b) When vibration can be confirmed using monitor signal or external sensor
t
Motor-side vibration
(droop pulses)
Position command frequency
t
External acceleration pickup signal, etc.
Vibration suppression control -
Vibration frequency
Vibration suppression control -
Resonance frequency
Set the same value.
Vibration cycle [Hz]
Vibration cycle [Hz]
Step 3. Fine-adjust "Vibration suppression control - Vibration frequency damping" and "Vibration
suppression control - Resonance frequency damping".
Summary of Contents for MR-JE-_A
Page 9: ...A 8 MEMO ...
Page 15: ...6 MEMO ...
Page 29: ...1 FUNCTIONS AND CONFIGURATION 1 14 MEMO ...
Page 139: ...4 STARTUP 4 38 MEMO ...
Page 187: ...5 PARAMETERS 5 48 MEMO ...
Page 221: ...6 NORMAL GAIN ADJUSTMENT 6 34 MEMO ...
Page 259: ...8 TROUBLESHOOTING 8 8 MEMO ...
Page 265: ...9 DIMENSIONS 9 6 MEMO ...
Page 273: ...10 CHARACTERISTICS 10 8 MEMO ...
Page 339: ...12 COMMUNICATION FUNCTION MITSUBISHI ELECTRIC GENERAL PURPOSE AC SERVO PROTOCOL 12 34 MEMO ...