Mitsubishi Electric MELSERVO-JN Series, Instruction Manual

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7. SPECIAL ADJUSTMENT FUNCTIONS
(4) Gain changing (parameter No. PB26)
This parameter is used to set the gain changing condition. Select the changing condition in the first and
second digits. If "1" is set in the first digit, the gain can be changed by the gain changing (CDP) input device.
The gain changing (CDP) can be assigned to CN1-3 pin to CN1-8 pin using parameters No. PD03 to PD14.
Gain changing selection
Under any of the following conditions, the gains
change on the basis of parameter No. PB29 to
PB34 settings.
0: Invalid
1: Input device (gain changing (CDP))
2: Command frequency (parameter No.PB27 setting)
3: Droop pulse (parameter No.PB27 setting)
4: Servo motor speed (parameter No.PB27 setting)
0
Gain changing condition
0: Valid when the input device (gain changing (CDP)) is ON, or
valid when the value is equal to or larger than the value set
in parameter No. PB27.
1: Valid when the input device (gain changing (CDP)) is OFF,
or valid when the value is equal to or smaller than the value
set in parameter No. PB27.
(5) Gain changing condition (parameter No. PB27)
This parameter is used to set gain changing level when "command frequency", "droop pulse" or "servo
motor speed" is selected in the gain changing (parameter No. PB26).
The setting unit is as follows.
Gain changing condition Unit
Command frequency kpps
Droop pulse pulse
Servo motor speed r/min
(6) Gain changing time constant (parameter No. PB28)
In this parameter, a primary delay filter can be set to each gain at gain changing. This parameter is, for
example, used to prevent unexpected operation if the gain difference is large at gain changing.
(7) Gain changing vibration suppression control
Gain changing vibration suppression control is used only when the gain is changed by on/off of the input
device (gain changing (CDP)).