Function Application
‑640‑
No.
Scenario Description
1
The closed‑loop speed
control mode is used and
the closed‑loop limit is
associated with the
synchronous frequency.
B0‑28 = 0
Closed‑loop adjustment limit = Linear speed
synchronous frequency x B0‑26 + B0‑27
2
The closed‑loop speed
control mode is used and
the closed‑loop limit is set
to a fixed frequency.
B0‑28 = 1
Closed‑loop adjustment limit = B0‑27
See "
Table 3–42 Parameters
"
on page 640
.
3
The closed‑loop torque
control mode is used and
the closed‑loop limit is set
to a fixed torque.
The limit is set through B1‑16 and the value is a
percentage of the motor rated torque. See
"
Table 3–42 Parameters
"
on page 640
.
Table 3–42 Parameters
Para. Name De
fault
Value Range
Description
B0‑26
Winding
frequency limit
50.0% 0.0% to
100.0%
Limit percentage (a percentage of
the linear speed synchronous
frequency)
B0‑27
Winding
frequency limit
offset
5.00
Hz
0.00 Hz to
100.00 Hz
Limit offset (fixed frequency)
B1‑16
Tension closed‑
loop torque
control limit
100.0
%
0.0% to
200.0%
Used to limit the ratio (in
percentage) of the closed‑loop
torque control value to the open‑
loop control torque reference in
the closed‑loop torque control
mode (B0‑00 is set to 3).
3.6.13Tension Torque Compensation
This function is only applicable to the torque control mode. Setting parameters
related to this function properly can optimize the tension control effect, improve the
tension stability, and optimize the system response speed.
It is recommended that you set the parameters for the open‑loop torque control
mode (B0‑00 = 1). Generally, for the closed‑loop torque control mode (B0‑00 = 3), do
not set the parameters.