Baldor BSC 7107 DC manual Section General Information, Introduction

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Section 1

General Information

Introduction

Baldor Series BSC 7107 control is a general purpose brushless DC motor control. This control commutates power into standard 3-phase brushless (BLDC) motors.

The control input line voltage is 120 VAC ± 10%. This control provides up to 7 amperes of continuous current to the motor. Motors with Hall sensor spacings of 60 and 120 degrees can be used.

The control has two PC boards-an upper and a lower, connected by ribbon cable. A 10-position terminal strip on the upper board connects the control to the motor sensors, the speedpot, and the forward/reverse control switch (optional). The control’s upper board also carries the trimpots for minimum speed, maximum speed, and current limit, as well as a means for selecting the sensor spacing.

STANDARD FEATURES

S S S S S S S

Closed loop control

Quiet 15KHz PWM switching frequency MOSFET power devices Forward/Reverse direction control

5KΩ speedpot with leads, knob and dial for remote mounting Internal +6.25 VDC for motor hall-effect sensors Anodized chassis mount heatsink

General Information 1-1

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Contents BSC DC Brushless Control Installation and Operating Manual MN1231Table of Contents Ii Table of Contents Section General Information IntroductionLimited Warranty Safety Notice PrecautionsBe sure the system is properly grounded before Section Receiving & Installation InstallationControl Installation ReceivingAC Power Connection Refer to Figure Speed Potentiometer Refer to FigureControl Connection Locations Sensor and Motor Connections Refer to Figure Connect the three motor leads to P1 terminals as followsReverse Operation 1st Time Power Up Procedure or after a motor is replaced Section Adjustments Current Limit AdjustmentMinimum Speed Adjustment Adjusting Closed Loop GainSpecifications Section Specifications and DataDimensions Hall Signal Timing Diagram Box Fort Smith, AR 479 Fax 479
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