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Torque control selection, Application examples – Yaskawa Large Capacity Sigma II Series User Manual

Page 115

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4.2 Settings According to Host Controller

4-39

4

„

Torque Control Selection

Set in the following parameters to select level 3 or 4 torque control.

A torque reference is input from the host controller to the SERVOPACK in order to control
torque.

Application Examples

• Tension control
• Pressure control

Pn000.1

Control Mode Selection

Factory

Setting:

0

Speed/Torque
Control,
Position 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) can 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 Reference)

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.

CN1-41 is open.

Torque control

CN1-41 is 0 V.

Speed control

Torque Control: When /P-CON (/C-SEL) is OFF

• The T-REF reference controls toque.
• V-REF can be used to limit servomotor speed when Pn002.1 is

set to 1. V-REF voltage (+) limit servomotor speed during for-
ward and reverse rotation.

• Parameter Pn407 can be used to limit the maximum servomo-

tor speed.

Torque
reference

Speed
limit

T-REF

V-REF

SERVOPACK

CN1-9

CN1-5

SERVOPACK

Tension

Servomotor

Tension control

A ppl i cati on Ex am pl e

SERVOPACK

CN1-5

CN1-9

CN1-41

V-REF

T-REF

/P-CON

(/C-SEL)

Speed and
torque
reference
switching

Torque
reference

Speed
reference