Yaskawa Sigma II Series Servo System - Manual (Page 124)

Sigma II User’s Manual Chapter 5: Parameter Settings and Functions
5 - 38
Application Examples
• Tension control
• Pressure control
Pn000.1 Control Mode
2
Torque Control
This is a dedicated Torque Control Mode.
•A torque reference is input from T-REF (CN1-9).
•Speed reference input V-REF (CN1-5) cannot be
used for speed control if Pn002.1 is set to 1.
•Parameter Pn407 can be used for maximum speed
control.
9
Torque Control <-> Speed Control (Analog Refer-
ence)
Switches between torque and speed control
•V-REF (CN1-5) inputs a speed reference or speed
limit.
•T-REF (CN1-9) inputs a torque reference, torque
feed-forward reference or torque limit depending on
the control mode.
•/P-CON (/C-SEL)(CN1-41) is used to switch
between torque and speed control.
Torque Control: When /P-CON (/C-SEL) is OFF
•The T-REF reference controls torque.
•V-REF can be used to limit servomotor speed
when Pn002.1 is set to 1. V-REF voltage (+) limit
servomotor speed during forward and reverse
rotation.
•Parameter Pn407 can be used to limit the maxi-
mum servomotor speed.
Tension control
Tension
Servomotor
Servo
amplifier
Application Example
Servo amplifier
T-REF
V-REF
Cn1-9
Cn1-5
Torque
reference
Speed
Limit
CN1-41
State
Selects
Open Torque Control
0V Speed Control
Servo amplifier
V-REF
T-REF
Cn1-5
Cn1-9
Speed
reference
Torque
reference
Speed and
torque
reference
switching
/P-CON
(/C-SEL)
Cn1-41