Chapter 1 Unpacking Check and Model ExplanationASDA-AB Series

1.5Control Modes of Servo Drive

The Delta Servo provides six single and five dual modes of operation.

Their operation and description is listed in the following table.

 

Mode

Code

Description

 

 

 

 

 

External Position Control

Pt

External Position control mode for the servo motor is

 

achieved via an external pulse command.

 

 

 

 

 

 

Internal Position control mode for the servo motor is

 

Internal Position Control

Pr

achieved via 8 internal position registers within the servo

 

controller. Execution of the 8 positions is via Digital Input

 

 

 

 

 

 

(DI) signals.

 

 

 

 

 

 

 

(External / Internal) Speed control mode for the servo motor

 

 

 

can be achieved via parameters set within the controller or

 

Speed Control

S

from an external analog -10 ~ +10 VDC command. Control

 

 

 

of the internal speed mode is via the Digital Inputs (DI). (A

 

 

 

maximum of three speeds can be stored internally).

 

 

 

 

Single

 

 

Internal Speed control mode for the servo motor is only

Mode

Internal Speed Control

Sz

achieved via parameters set within the controller. Control of

 

 

 

the internal speed mode is via the Digital Inputs (DI). (A

 

 

 

maximum of three speeds can be stored internally).

 

 

 

 

 

 

 

(External / Internal) Torque control mode for the servo

 

 

 

motor can be achieved via parameters set within the

 

Torque Control

T

controller or from an external analog -10 ~ +10 VDC

 

command. Control of the internal torque mode is via the

 

 

 

 

 

 

Digital Inputs (DI). (A maximum of three torque levels can

 

 

 

be stored internally).

 

 

 

 

 

 

Tz

Internal Torque control mode for the servo motor is only

 

Internal Torque Control

 

achieved via parameters set within the controller. Control of

 

 

the internal torque mode is via the Digital Inputs (DI). (A

 

 

 

 

 

 

maximum of three torque levels can be stored internally).

 

 

 

 

 

 

Pt-S

Either Pt or S control mode can be selected via the Digital

 

 

 

Inputs (DI)

 

 

Pt-T

Either Pt or T control mode can be selected via the Digital

 

 

 

Inputs (DI)

 

 

 

 

 

Dual Mode

Pr-S

Either Pr or S control mode can be selected via the Digital

 

 

Inputs (DI)

 

 

 

 

 

Pr-T

Either Pr or T control mode can be selected via the Digital

 

 

 

Inputs (DI)

 

 

S-T

Either S or T control mode can be selected via the Digital

 

 

 

Inputs (DI)

The above control modes can be accessed and changed via parameter P1-01. Enter the new control mode via P1-01 then switch the main power to the servo drive OFF then ON. The new control mode will only be valid after the drives main power is switched OFF then ON. Please see safety precautions on page iii (switching drive off/on multiple times).

1-8

Revision January 2009

Page 21
Image 21
Delta Electronics ASDA-AB manual Control Modes of Servo Drive