Yaskawa Sigma-5 User Manual: Design and Maintenance - Rotary Motors - Analog Voltage and Pulse Train Reference User Manual

Page 177

5.8 Limiting Torque

5-63

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5.8.4 Torque Limiting Using an External Torque Limit and Analog Voltage

Reference

This function can be used to combine torque limiting by an external input and by analog voltage reference.

When /P-CL (or /N-CL) is ON, either the torque limit by analog voltage reference or the setting in Pn404 (or
Pn405) will be applied as the torque limit, whichever is smaller.

The following chart shows the external torque limiting using an analog voltage reference.

Note: This function cannot be used during torque control since the torque limit by analog voltage reference is input from

T-REF (CN1-9, 10).

Parameter

Meaning

When Enabled Classification

Pn002

When /P-CL or /N-CL is enabled, the T-REF terminal
is used as the external torque limit input.

After restart

Setup

Pn300

T-REF

V-REF

/N-CL

/P-CL

Pn101

Pn100

Pn400

T-REF filter time constant

Pn415

Torque limit
value

Speed
reference

Pn404

(/P-CL: ON)

Pn402

Pn405
Reverse external torque limit

(/N-CL: ON)

Pn403

Speed
loop
gain

Speed feedback

Torque
reference

SERVOPACK

Torque reference input gain

Forward
torque
limit

Forward
external
torque limit

Reverse torque limit

Speed
reference input
gain

Speed loop
integral time
constant

(See 5.5.1.)

(See 6.9.2.)

(See 5.3.1.)

(See 5.8.1.)