BENSHAW RSi GX Series Hardware Manual page 81

Range:
Description:
Range:
Description:
Range:
Description:
0 - 15% (Default: 2%)
This parameter sets the amount of torque boost applied to a motor during
forward run. It is set in percent of Max output voltage.
0 - 15% (Default: 2%)
This parameter sets the amount of torque boost applied to a motor during
reverse run. It is set as a percent of Max output voltage.
0 - 2
This is the pattern of voltage / frequency ratio. Select the proper V/F pattern
according to the load. The motor torque is dependent on this V/F pattern.
Display: Function:
0 Linear Pattern
1 Square Pattern
2 User V/F Pattern
Linear Patterrn:
The Linear pattern is used where constant torque is required. This pattern
maintains a linear volts/hertz ratio from zero to base frequency. This pattern
applies to conveyors, extruders, etc. This pattern maintains a linear
Volts/frequency ration from F23 (Start frequency, page 72) to F22 (Base
frequency, 72).
Square Pattern:
The Square pattern is used where variable torque is required. This pattern
maintains squared volts/hertz ratio. This pattern applies to fan, pump etc.
User V/F Pattern:
The User V/F pattern is used for special applications.
Users can adjust the volts/hertz ratio according to applications. This is done
by setting the voltage and hertz, respectively, at four points between starting
frequency and base frequency.
The four points of voltage and hertz are set in F31 ~ F38, (page 76). The
6 - Parameter Descriptions
F28: Torque Boost in Forward Direction
F29: Torque Boost in Reverse Direction
F30: V/F Pattern
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