D5: Torque Control - YASKAWA A1000 HHP Programming Manual

• d4-03 = 0.00 Hz, d4-05 = 1, and the Up/Down 2 commands are both open or both closed.
• Any changes to the maximum frequency set to E1-04.
n d4-07: Analog Frequency Reference Fluctuation Limit (Up/Down 2)
Handles frequency reference changes while the Up 2 or Down 2 terminal is enabled. If the frequency reference changes for
more than the level set to d4-07, then the bias value will be held,and the drive will accelerate or decelerate following the
frequency reference. When the frequency reference is reached, the bias hold is released and the bias follows the Up/Down 2
input commands.
This parameter is applicable only if the frequency reference is set by an analog or pulse input.
No.
d4-07 Analog Frequency Reference Fluctuation Limit (Up/Down 2)
n
d4-08: Frequency Reference Bias Upper Limit (Up/Down 2)
Sets the upper limit of the Up/Down 2 bias (monitor U6-20) and the value that can be saved in parameter d4-06. Set this
parameter to an appropriate value before using the Up/Down 2 function.
Note: When the frequency reference is set by the digital operator (b1-01 = 0) and d4-01 = 1, the bias value will be added to the frequency reference
if no Up/Down 2 command is received for 5 s, and will be reset to 0 afterwards. From that point, the bias can be increased up to the limit
set in d4-08 again.
No.
d4-08 Frequency Reference Bias Upper Limit (Up/Down 2)
n
d4-09: Frequency Reference Bias Lower Limit (Up/Down 2)
Sets the lower limit of the Up/Down 2 bias (monitor U6-20) and the value that can be saved in parameter d4-06. Set this
parameter to an appropriate value before using the Up/Down 2 function.
Note: When the frequency reference is set by the digital operator (b1-01 = 0) and d4-01 = 1, the bias value will be added to the frequency reference
if no Up/Down 2 command is received for 5 s, and will be reset to 0 afterwards. If the bias is increased using the Up 2 command, it cannot
be reduced with a Down 2 command when the limit set in d4-09 is 0. Set a negative lower limit in d4-09 to allow speed reduction in this
situation.
No.
d4-09 Frequency Reference Bias Lower Limit (Up/Down 2)
n d4-10: Up/Down Frequency Reference Limit Selection
Selects how the lower frequency limit is set when using the Up/Down function.
Function on page 98 for details on the Up/Down function in combination with frequency reference limits.
No.
d4-10 Up/Down Frequency Reference Limit Selection
Setting 0: Lower Limit is Determined by d2-02 or Analog Input
The higher value between d2-02 and an analog input programmed for Frequency bias (A1, A2, A3) determines the lower
frequency reference limit.
Note: When using the External Reference 1/2 (H1-oo = 2) to switch between the Up/Down function and an analog input as the reference source,
the analog value becomes the lower reference limit when the Up/Down command is active. Set d4-10 to 1 to make the Up/Down function
independent of the analog input value.
Setting 1: Lower Limit is Determined by d2-02
Only parameter d2-02 sets the lower frequency reference limit.
u

d5: Torque Control

Torque Control defines a setpoint for the motor torque and is available for CLV and CLV/PM (A1-02 = 3).
Note: PM motor control modes are not available in A1000 HHP drive models.
n Torque Control Operation
Torque control can be enabled either by setting parameter d5-01 to 1 or by setting digital input (H1-oo = 71).
illustrates the working principle.
YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
Parameter Name
Parameter Name
Parameter Name
Parameter Name
1.4 d: Reference Settings
Setting Range
0.1 to 100.0%
Setting Range
0.0 to 100.0%
Setting Range
-99.9 to 0.0%
Refer to Setting 10, 11: Up/Down
Setting Range
0, 1
Default
1.0%
Default
100.0%
Default
0.0%
Default
0
1
Figure 1.47
67