Mitsubishi Electric MELSERVO-JN Series Instruction Manual page 126

4. PARAMETERS
4.2.3 Position smoothing
By setting the position command acceleration/deceleration time constant (parameter No. PB03), the servo
motor is operated smoothly in response to a sudden position command.
The following diagrams show the operation patterns of the servo motor in response to a position command
when the position command acceleration/deceleration time constant is set.
Select the primary delay or linear acceleration/deceleration in parameter No. PB25 according to the machine
used.
(1) For step input
(2) For trapezoidal input
For trapezoidal input (linear acceleration/deceleration), the setting range is 0 to 10ms.
(3t)
Time
(3t)
Time
(3t)
4 - 29
: Input position command
: Position command after
filtering for primary delay
: Position command after filtering
for linear acceleration/deceleration
: Position command acceleration/
deceleration time constant (parameter No. PB03)
: Input position command
: Position command after
filtering for primary delay
: Position command after filtering
for linear acceleration/deceleration
: Position command acceleration/
deceleration time constant
(parameter No. PB03)