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Summary
Field Weakening: Reduces output voltage for energy savings under steady light load conditions.
Activation: Digital input programmed for H1-oo = 63.
Energy Saving for Varying Loads: Use b8-oo parameters.
Yaskawa SGMCS-07B3C11｜Frequency Converter｜
Input Value Polarity Overview
The direction of the input values for torque control depends on the polarity of the Run command and the input value. Here’s a summary based on the provided table and examples:
Torque Control Signal Polarity
Run Command Input Value Polarity Input Value Direction
Forward + (positive) Forward direction
– (negative) Reverse direction
Reverse + (positive) Reverse direction
– (negative) Forward direction
Examples
Forward Run Command with Positive Torque Reference Signal
Internal torque reference: Positive (Forward direction).
Forward Run Command with Negative Torque Reference Signal
Internal torque reference: Negative (Reverse direction).
Generating Negative Input Values
When using analog inputs, negative input values can be generated by:
Applying negative voltage input signals.
Using positive analog input signals and setting the analog input bias to negative values.
Applying positive voltage input signals and using a digital input programmed for H1-oo = 78.
Communication Protocols
When using MEMOBUS/Modbus communication or a communication option card, only positive input values can be set.
Inverting Polarity
The polarity of the torque reference signal can be inverted using a digital input programmed for H1-oo = 78. This function allows for inputting negative torque reference values when using MEMOBUS/Modbus or a communication option card.
Yaskawa SGMCS-07B3C11｜Frequency Converter｜
By structuring the information in this manner, the article provides a clear and organized understanding of input channels, transducer supply, and communication implementations in distributed control systems.
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