Torque control parameter, Internal speed limit function – Yaskawa FSP Amplifier User Manual

Page 106

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FSP Amplifier User’s Manual

Chapter 5: Parameter Settings and Functions

5-39

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Torque Control Parameter

The following parameter is used for torque control. Set the parameter
according to requirements of the servo system that is used.

Parameter Signal

Setting

(0.1 V / Rated Torque)

Control Mode

Pn400

Torque Reference
Input Gain

Range: 10 to 100
Default Setting: 30

Torque Control and
Programming

This parameter sets the voltage range for torque reference input T-REF
(CN1-9) depending on the output range of the host controller or external
circuit.
The default setting is 30, so the rated torque output is equal to 3 V
(30 × 0.1).

This reference voltage is set.

Reference torque

Reference
voltage (V)

Rated torque

Pn002.1 Setting

Description

0

Uses speed limit set by Pn407 (internal speed limit function).

1

Uses V-REF (Cn1-5 and -6) as external speed limit input and
sets speed limit by voltage, which are input to V-REF and
Pn300 (external speed limit function).

Internal Speed Limit Function

Parameter

Signal

Setting (rpm)

Control Mode

Pn407

Speed Limit during
Torque Control

Range: 0 to 10000
Default Setting: 10000

Torque Control

This parameter sets a motor speed limit when torque control is selected. It
is used to prevent excessive equipment speed during torque control.
Since the speed limit detection signal /VLT functions the same in torque
control as the /CLT signal, see 5.1.3 Limiting Torque, where the /CLT
signal is described.

Torque limit

Motor speed

Torque

Torque

control

range

Torque Control Range

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