Mitsubishi Electric MELSERVO J5 Series User Manual page 77

[Pr. PB26 Gain switching function]
Set the conditions for gain switching. Select the switching condition from the first to fifth digits.
Servo parameter Description
PB26.0 Gain switching selection
0: Disabled
1: Signal (CDP/C_CDP)
2: Command frequency
3: Droop pulses
4: Servo motor speed
5: Command direction
PB26.1 Gain switching condition selection
0: Gain after "Gain switching" is enabled with the value of the gain switching condition or more
1: Gain after "Gain switching" is enabled when the value of the gain switching condition or less
For the combination of [Pr. PB26.0] and [Pr. PB26.1], refer to the following.
Page 75 Combination of [Pr. PB26.0] and [Pr. PB26.1]
PB26.2 Gain switching time constant disabling condition selection
0: Switching time constant enabled
1: Time constant at switching enabled
2: Return time constant disabled
PB26.4 Gain switching 2 selection
When switching the gain to the gain for gain switching 2, input signals with the control command (C_CDP2) from the controller and
with the input device CDP2 (gain switching 2).
0: Disabled
1: Signal (CDP2/C_CDP2)
2: Same condition as [Pr. PB26.0 Gain switching selection]
PB26.5 Gain switching selection during a stop
0: Gain switching 2 during a stop is disabled
1: Gain switching 2 during a stop is enabled
This servo parameter is enabled when [Pr. PB26.0 Gain switching selection] is set to "5" (command direction) and [Pr. PB26.4
Gain switching 2 selection] is set to "2" (the same condition as [Pr. PB26.0]).
In addition, this function is enabled in the position mode.
*1 Input the signals with the control command (C_CDP) and the input device CDP (Gain switching) from the controller.
■Combination of [Pr. PB26.0] and [Pr. PB26.1]
[Pr. PB26.1 Gain [Pr. PB26.0 Gain switching selection]
switching -
1
Condition selection]
0 Gain after "Gain switching" is enabled
with the signal ON
1 Gain after "Gain switching" is enabled
with the signal OFF
[Pr. PB27 Gain switching condition] and [Pr. PB66 Gain switching 2 condition]
When "2" (Command frequency), "3" (Droop pulses), or "4" (Servo motor speed) is selected in [Pr. PB26.0 Gain switching
selection], set [Pr. PB27] for the level to switch the gain to "Gain switching".
In addition, when "2" (the same condition as [Pr. PB26.0]) is selected in [Pr. PB26.4 Gain switching 2 selection], set the level
for switching the gain to "Gain switching 2" in [Pr. PB66].
The setting unit is shown in the following table.
Gain switching condition
Command frequency
Droop pulses
Servo motor speed
*1
2 3
Gain after "Gain switching" is enabled with the
condition value or more for gain switching
Gain after "Gain switching" is enabled with the
condition value or less for gain switching
4 5
Gain after "Gain switching" is enabled
with the negative direction command
Gain after "Gain switching" is enabled
with the positive direction command
Unit
[kpulse/s]
[pulse]
[r/min]
5 GAIN SWITCHING FUNCTION
5.5 Setting method for gain switching
5
75