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Section 1
General Information
General Information 1-1
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 Closed loop control
S Quiet 15KHz PWM switching frequency
S MOSFET power devices
S Forward/Reverse direction control
S 5KΩ speedpot with leads, knob and dial for remote mounting
S Internal +6.25 VDC for motor hall-effect sensors
S Anodized chassis mount heatsink