Chapter 6 Control Modes of Operation
ASDA-A User Manual
4th Edition 2005/11/30, HE03
© DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
6-36
6-5-2 Speed / Torque Control Mode Selection
S-T Mode:
The speed command can be the external analog voltage or internal parameters (P1-09 to P1-11) and
SPD0~1
is used to select speed command. The same as speed command, the torque command can be
the external analog voltage or internal parameters (P1-12 to P1-14) and
TCM0~1
is used to select torque
command The speed and torque mode switching is controlled by the
S-T
signal.
The timing chart of speed / torque control mode selection is shown as the figure below:
S-T
NOT CARE
NOT CARE
SPD0-1 VALID
TCM0-1 VALID
NOT CARE
TCM0-1 VALID
Torque control mode
Speed control mode
Torque control mode
Figure 2. : Speed / Torque Control Mode Selection
In torque mode (when
S-T
is ON), torque command is selected by
TCM0~1
. When switching to the position
mode (when
S-T
is OFF), the torque command is selected by
SPD0~1
, and then the motor will immediately
rotate following the command. After
S-T
is ON, it will immediately return to torque mode. For the relationship
between DI signal and selected command in each mode, please refer to the introduction of single mode.
