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Control Mode

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ASDA-A3

6

6.5.2 Speed / Torque dual mode

Speed / Torque dual mode includes only S-T mode. The command source for Speed command

can be the external analog voltage or the internal parameters (P1.009 - P1.011), which you can

select with DI.SPD0 and DI.SPD1. Similarly, the source of the Torque command can be the

external analog voltage or the internal parameters (P1.012 - P1.014), which you can select with

DI.TCM0 and DI.TCM1. The following timing diagram illustrates the S-T mode. The switch

between Speed and Torque modes is controlled by DI.S-T (0x19).

S-T

ON

OFF

ON

SPD0 - 1 invalid

SPD0 - 1 valid

SPD0 - 1 invalid

TCM0 - 1 valid

Torque mode

TCM0 - 1 invalid

Speed mode

Figure 6.5.2.1 Speed / Torque dual mode

TCM0 - 1 valid

Torque mode

In Torque mode (DI.S-T is on), you select the Torque command with DI.TCM0 and DI.TCM1.

When the mode is switched to Speed mode (DI.S-T is off), you select the Speed command with

DI.SPD0 and DI.SPD1. Then the motor operates according to the Speed command.

When DI.S-T is on, it returns to Torque mode. Refer to the introduction of single mode for the DI

signal and the selected commands for each mode.

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