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Chapter 1 Unpacking Check and Model Explanation|ASDA-AB Series
1-8 Revision January 2009
1.5 Control 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 Pr
Internal Position control mode for the servo motor is
achieved via 8 internal position registers within the servo
controller. Execution of the 8 positions is via Digital Input
(DI) signals.
Speed Control S
(External / Internal) Speed control mode for the servo motor
can be achieved via parameters set within the controller or
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).
Internal Speed Control Sz
Internal Speed control mode for the servo motor is only
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).
Torque Control T
(External / Internal) Torque control mode for the servo
motor can be achieved via parameters set within the
controller or from an external analog -10 ~ +10 V
DC
command. Control of the internal torque mode is via the
Digital Inputs (DI). (A maximum of three torque levels can
be stored internally).
Single
Mode
Internal Torque Control
Tz Internal Torque control mode for the servo motor is only
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)
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)
Dual Mode
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).