Parameter Details
12
12.5 d: References
YASKAWA SIEPC71061705H GA700 Series Technical Manual 731
Figure 12.71 Frequency Reference Transition when PID Control and PID Bi-Directional are Enabled
Note:
When b1-04 = 1, the drive will not run the motor in Reverse. The frequency reference limit is 0 Hz.
• When PID Control is Enabled and H1-xx = 7F is Deactivated
The Bi-Directional function is disabled. When the frequency reference is a negative value after PID control
execution, the drive runs the motor opposite of the set direction. The frequency reference value is an absolute
value.
■ d4-12: Stop Position Gain
No.
(Hex.)
Name Description
Default
(Range)
d4-12
(02B8)
Stop Position Gain
Sets the gain to adjust the stopping accuracy. Set this parameter when b1-03 = 9 [Stopping
Method Selection = Stop with Constant Distance].
1.00
(0.50 - 2.55)
If the motor stops before the necessary stop position, increase the setting value. If the length of time for the motor
to stop is too long, decrease the setting value.
◆ d5: Torque Control
d5 parameters set the Torque Control function.
The Torque Control function controls the output torque of the motor. You can use Torque Control for roller drives,
winders, unwinders, conveyors and other machines that use tension control and push/pull applications. When
there is no more material and the machine suddenly has no load, the drive uses Torque Control and the speed limit
function to keep the rotation speed of the motor from increasing.
Set A1-02 [Control Method Selection] to one of these values to use Torque Control:
• 3 [Closed Loop Vector]
• 4 [Advanced Open Loop Vector]
• 6 [PM Advanced Open Loop Vector]
• 7 [PM Closed Loop Vector]
Note:
When you use Torque Control and A1-02 = 4, use a motor designed for winding applications.
Use one of these methods to enable Torque Control:
• Set d5-01 = 1 [Torque Control Selection = Torque Control].
• Set H1-xx = 71 [Torque Control] ON.
■ Torque Control Operation
Figure 12.72 shows the operation principle of Torque Control.
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