Torque Mode; Selecting The Torque Command Source - Delta ASDA-B3 Series User Manual

ASDA-B3

6.4 Torque mode

The Torque control mode (T or Tz) is suitable for torque control applications, such as printing
machines and winding machines. There are two kinds of command sources: analog input and
internal register (parameters). The analog command input uses scaled external voltage to
control the torque of the motor while the register input uses the internal parameters (P1.012 -
P1.014) for the Torque command.

6.4.1 Selecting the Torque command source

There are two types of Torque command sources: external analog voltage and internal
parameters.
Select the command source with DI signals of CN1. See the following table for more details.
Torque
command
TCM1
number
T1
T2
T3
T4
 Status of TCM0 and TCM1: 0 means that DI is off (the circuit is open); 1 means that DI is
on (the circuit is closed).
 When both TCM0 and TCM1 are 0, if the drive is in Tz mode, the command is 0. Thus, if
there is no need to use the analog voltage for the Torque command, you can use Tz mode
to avoid the problem of zero drift in the voltage. If the drive is in T mode, then the
command is the voltage difference between T_REF and GND. The range of the input
voltage is between -10V and +10V, and you can adjust the corresponding torque with
P1.041.
 When either one of TCM0 or TCM1 is not 0, the internal parameters become the source
for the Torque command. The command is activated once the status of TCM0 and TCM1
are switched. There is no need to use DI.CTRG for triggering.
You can use the Torque command in Torque mode (T or Tz) and Speed mode (S or Sz). When
the drive is in Speed mode, you can use the Torque command input as the torque limit.
CN1 DI signal
Command source
TCM0
0 0 Mode
Tz
0 1
Internal register
1 0
(parameter)
1 1
Voltage difference
External analog
T between T_REF and
signal
N/A Torque command is 0
Content Range
-10V to +10V
GND
0
P1.012 -500% to +500%
P1.013 -500% to +500%
P1.014 -500% to +500%
Control Mode
6
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