quadrant control of DC Motors
Ideal for run/stop/jog and reversing applications
Extremely rugged and economical
Full-wave four-quadrant regenerative DC output
Motor inhibit input
Maximum/jog speed, torque and regulation controls
|| POWR UPS MODEL
2750 full wave regenerative motor controls are designed to replace
full wave dynamically braked units made by other manufacturers. With
its regenerative action, the 2750 offers superior performance in Run/Stop,
Run/Stop/Jog and reversing applications.
Dynamically braked motor controls with braking resistors, relays and
reversing relays often rely on complicated schemes to prevent relay
switching at high voltages or currents. When these complicated circuits
malfunction, relay life can be greatly reduced. The 2750 offers static
motor direction reversing and breaking that is simple and reliable.
The rate of braking and reversing can be user selectable by an easily
accessed dip switch. If the user needs an extended time for braking,
this can be accomplished by adjusting the decel pot (R4).
2750 uses an external 5000 speed potentiometer for both forward or
reverse directions. An external SPDT switch with switch function (on-off-momentary)
should be used for Run/Brake/Jog. An external SPDT switch with switch
function (on-none-on) for Forward/Reverse should be used.
adjustment controls include Maximum Speed, Jog Speed, Current/Torque
Limit, IR Compensation (for adjustment of speed regulation), Acceleration
and Deceleration Rates. Rate of Braking or Reversing from to 2.0 mS-47
mS is user selectable by easily accessed dip switches.
signal line is provided on 2750 motor controls. When the inhibit line
is removed from ground or just left open the motor output is inhibited.
The motor control operates normally when the inhibit line is directly
connected to the ground pin of the motor control.
motor 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.
A field voltage supply producing either 50 or 100 VDC is incorporated
for shunt field motors (100 and 200 VDC for 230 VAC inputs).
voltages can be accommodated on special order. Most applications require
the use of a 1:1 autotransformer or split phase AC line to produce
the full wave characteristic.