4-75
H Parameters Requiring Settings
Parameter
No.
Parameter name Explanation Reference
Pn000.1 Function
selection basic
switch 1
Set the control mode for speed control (Settings: 0,
4, 7, 9, A)
4-4-3 Important
Parameters
Pn300 Speed command
scale
Set the REF (speed command input) voltage for
operating at the rated rotation speed.
Rotation speed (r/min.)
Rated rotation
(Default setting)
Speed command
voltage (V)
Rated rotation speed
4-4-4 Parameter
Details
H Related Functions
• The main functions related to speed control that can be used during speed control are as follows:
Function name Explanation Reference
Soft start function Sets the soft start for the speed command. 4-5-11 Soft Start
Function
Position lock function This function stops the Servomotor in servolock
status (position control status) using PLOCK
(position lock command) signal input.
4-5-14 Position Lock
Function
Torque feed-forward
function
Calculates TREF (torque command input) for the
current loop to reduce acceleration and deceleration
time.
4-8-3 Torque
Feed-forward Function
Torque limit function This function limits the Servomotor’s output torque
output.
4-5-10 Torque Limit
Function
Gain reduction function Switches speed loop command from PI control to P
control by inputting a MING (gain reduction) signal to
lower servo rigidity.
4-5-9 Gain Reduction
P control switching
function
Switches the speed control loop automatically from
PI control to P control to lower servo rigidity (you can
select the switching conditions).
4-8-10 P Control
Switching
Operation Chapter 4
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