Yatai Inverter YTB-S-LT User’s Manual
can adjust it according to his requirements.
4-11 Protection Value of PI
Control
Factory Value
：
50
Setting Range
：
20
～
100 m/min
The Function Code 4-11 means that when the difference between the target velocity and the actual velocity
exceeds the setting value of 4-11, the converter will jump to the protection of Err2. As an example, if user
adopts PI control but the contact being bad between the compression roller and yarn bobbin, it will cause
the rotation of the compression roller with lower speed, and then causes further the larger difference
between the target velocity and the actual velocity, and therefore to prompt the machine jumping to Err2
protection. In such situation the user should set up the value of this function code appropriately larger but
not suitable over too. The Factory Value is 50. User can adjust it by his need.
Function Code 5 District, the setting District of the Extra-feeding parameters
Setting Range:
0: Extra-feeding is invalid
1: Constant Velocity
5-00 Setting of the
Extra-feeding Motor Operating
Mode
2: Variable Velocity
Factory Value: 0
3: Frequency Increase
4: Velocity Tracking
5: Variable Velocity 2
6: Extra-feeding Frequency
Decrease Progressively
5-00
＝
0
，
Extra-feeding Motor Invalid: U1, V1 and W1 have no voltage output.
5-00
＝
1
，
Constant Velocity: The velocity of Extra-feeding is constant; the value of the velocity is
determined by the Function Codes of 5-01 and 5-02.
5-00
＝
2
，
Variable Velocity: The Extra-feeding motor increases continuously on the basis of the setting
velocity of 5-01 and according to the setting values of 5-11 and 5-12.
5-00
＝
3
，
Frequency increase: This function together with the setting length and along with the increase of
the winding length can make the frequency increase progressively from the Extra-feeding Starting
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