||POWR UPS MODEL
2749 motor controls are full wave, four quadrant regenerative units
that control the motor speed and torque of permanent magnet (PM) DC
motors. These controls use an external 5000 ohm speed command potentiometer
and are fully adjustable industrial grade units in a compact, low
cost package. Powr Ups model 2749 is ideal for OEM applications that
require rapid or frequent starting/stopping of inertial loads or static
switching bi-directional control.
An inhibit signal
line is provided on 2749 units. When energized, the motor output
adjustment controls include maximum speed, current/torque limit,
IR compensation (for adjustment of speed regulation), acceleration
and deceleration. Full load rated horsepower ranges from 1/30th
HP to 2 HP.
Model 2749 controls
are rugged units that incorporate thyristor phase angle control
and operate from a nominal 115 VAC line, driving 90 VDC rated motors.
180 VDC rated motors are driven when a 230 VAC line is used. Other
motor voltages can be accommodated on special order. Most applications
require the use of a 1:1 autotransformer or split AC line to produce
the full wave characteristic.