Baldor BSC 7107 DC manual Minimum Speed Adjustment, Adjusting Closed Loop Gain

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Minimum Speed Adjustment

1.Set the Speed Pot to zero speed (fully CCW).

2.Set the MIN pot on the upper board (Figure 2-2) fully CCW.

3.Apply power to the control.

4.Slowly rotate the MIN CW until the motor begins to rotate. Then turn the pot CCW until the motor just stops. The control will now run with a near–zero deadband.

5.If a non–zero minimum speed is desired, rotate the MIN pot CW to the desired minimum speed setting.

Adjusting Closed Loop Gain

1.Set the MAX pot on the upper board (Figure 2-2) to the approximate position shown in the figure.

2.Set the Speed Pot to maximum speed (fully CW).

3.Set the “Closed Loop Gain” pot (Figure 2-2) to its’ fully CCW position.

4.Apply power to the control. The motor should operate at full speed. If not, adjust the MAX pot setting until full motor speed is obtained.

5.Adjust the “Closed Loop Gain” pot CW until the motor speed decreases slightly.

Note: If the “Closed Loop Gain” pot is fully CW and the motor speed does not decrease, rotate the MAX pot CCW just enough to make the motor speed decrease slightly. Then adjust the “Closed Loop Gain” pot CCW just enough so the motor runs at full speed.

3-2 Adjustments

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Contents MN1231 BSC DC Brushless Control Installation and Operating ManualTable of Contents Ii Table of Contents Introduction Section General InformationLimited Warranty Precautions Safety NoticeBe sure the system is properly grounded before Receiving Section Receiving & InstallationInstallation Control InstallationSpeed Potentiometer Refer to Figure AC Power Connection Refer to FigureControl Connection Locations Connect the three motor leads to P1 terminals as follows Sensor and Motor Connections Refer to FigureReverse Operation 1st Time Power Up Procedure or after a motor is replaced Current Limit Adjustment Section AdjustmentsAdjusting Closed Loop Gain Minimum Speed AdjustmentSection Specifications and Data SpecificationsDimensions Hall Signal Timing Diagram Box Fort Smith, AR 479 Fax 479
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