5-4
5-2 Speed Control
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
5
BASIC CONTROL Mode
5-2 Speed Control
The CJ1W- and CS1W-NCx71 Position Control Units for MECHATROLINK-II issue the speed
control commands. The Servo Drive uses the commands and rotates the motor in the
commanded speed output. The present value to be fed back from the Servo Drive to the
Controller is the values obtained by dividing the command by the Electronic Gear Ratio
(determined by the settings in Pn009 or Pn010).
Parameters Requiring Settings
Related Functions
Servo Drive
R88D-KN
Servomotor
OMNUC G5
Host Controller
(MECHATROLINK-II communications support type)
Electronic Gear
Pn009, Pn010
Speed Control
Position Control Unit
CJ1W-NCF71
CS1W-NCF71
(Speed Control
Command)
Issue a target speed
command
Issue a torque
feed-forward command
Feedback the
position or speed
Numerator
Denominator
Parameter
number
Parameter name Explanation Reference
Pn312
Soft Start Acceleration
Time
Set the acceleration time for internally set speed control. Set
the time until 1,000 r/min is reached.
P.8-25
Pn313
Soft Start Deceleration
Time
Set the deceleration time for internally set speed control. Set
the time until 1,000 r/min is reached.
P.8-25
Pn314
S-curve Acceleration/
Deceleration Time Setting
Set the S-curve time in the time width centered on the
inflection points for acceleration and deceleration.
P.8-25
Parameter
number
Parameter name Explanation Reference
Pn435
Speed Conformity
Detection Range
Set the detection threshold for speed conformity output. If
the difference between the speed command and motor
speed is within the set threshold, a speed conformity output
is output.
This setting has a hysteresis of 10 r/min for detection.
P.8-37
Pn436
Rotation Speed for Motor
Rotation Detection
Set the detection threshold for Motor rotation speed
detection output. A Motor rotation speed detection output is
output when the motor speed exceeds the set value.
This setting has a hysteresis of 10 r/min for detection.
P.8-37
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