The
MDC150-120151 driver is designed to drive DC brushless
motors at currents of up to 15A and 170V. Using hall sensor
feedback, a constant velocity mode can be selected. The
driver is protected against over current (cycle-by-cycle or
latched), hall sensor error and under voltage. Included on
the driver is an internal potentiometer to control the
maximum phase current allowed into the motor and an internal
potentiometer to control the speed of the motor. An optional
external potentiometer (10K) can be used to control the
speed as well. The direction of the motor can be preset by
the direction control input. Other inputs to the drive
include a run/stop and a motor freewheel input. When using
the run/stop input, there are three ramp up/down profiles
from standstill to select from. The run/stop input overrides
all other inputs into the driver.
Over current protection can be provided by means of a over
current latch function by setting the ‘FLT LATCH’ dip
switch. If a motor current level exceeding the current limit
set by the internal current limit potentiometer is produced,
an over current latch is activated, shutting off the output.
This driver is equipped with a FAULT LED to alert the user
of the following conditions: 1) Invalid Sensor Input code,
2) Over Current. (The driver is equipped with cycle-by-cycle
current limiting or over current latch), and 3) Undervoltage
Lockout activation at 9.1VDC for the input voltage and
4.5VDC for Hall Sensor voltage.