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Chapter 6  Control Modes of Operation|ASDA-AB Series

 

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Revision March 2008, Doc. Name: 2007PDD23000011

Except signal control mode operation, ASDA-AB series AC drive also provide Pt-S, Pr-S, S-T, Pt-T, Pr-T 

these five multiple modes for the users to select. 

1）  Speed / Position mode selection: Pt-S, Pr-S 

2）  Speed / Torque mode selection: S-T 

3）  Torque / Position mode selection: Pt-T, Pr-T 

Mode  

Name 

Code 

Description 

Pt-S 

06 

Either Pt or S control mode can be selected via the Digital Inputs (DI) 

Pt-T 

07 

Either Pt or T control mode can be selected via the Digital Inputs (DI) 

Pr-S 

08 

Either Pr or S control mode can be selected via the Digital Inputs (DI) 

Pr-T 

09 

Either Pr or T control mode can be selected via the Digital Inputs (DI) 

Dual Mode 

S-T 

10 

Either S or T control mode can be selected via the Digital Inputs (DI) 

Sz and Tz mode selection is not provided. In order to avoid using too much DI inputs, we recommend that 

the users can use external analog signal as input command in speed and torque mode to reduce the use of 

DI inputs (SPD0~1 or TCM0~1). In position mode, we recommend that the users can use Pt mode to input 

pulse to reduce the use of DI inputs (POS0~2). 

Please refer to table 3.B and table 3.C in section 3.3.2 to see the default pin number of DI/DO signal. 
 

The command source of Pt-S mode is from external input pulse. The command source of Pr-S mode is 

from internal parameters (P1-15 to P1-30). The speed command can be the external analog voltage or 

internal parameters (P1-09 to P1-11). The speed and position mode switching is controlled by the S-P 

signal. The selection will be more complicated when the position of Pr-S mode and speed command are 

both selected through DI signal. 

The timing chart of speed / position control mode selection is shown as the figure below: 

CTRG

S-P

POS0-2 NOT CARE

POS0-2 NOT CARE

POS0-2  VALID

SPD0-1 VALID

SPD0~1 NOT CARE

SPD0-1 VALID

Speed control mode

Position control mode

Speed control mode

Figure 1. : Speed / Position Control Mode Selection