Polyspede

Our legendary OC2 series has been revamped with improved features and was launched in June 2002.
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OC2B is an open/closed chassis motor control that has been designed as building block solid state regulated power unit. OC2B uses state of the art control circuitry which can be used by itself, by wiring in the provided speed potentiometer as a straightforward speed regulated control or can be incorporated into much more sophisticated system designs contactor operation, external speed programming and tach feedback etc.

DC Motors

DC Drive Characteristics
y can deliver the rated motor torque at any speed between zero and the base speed of the motor. Horsepower varies in direct proportion to speed. Full rated horsepower is developed only at base speed. Full motor torque is available from zero to 100 percent base speed

Permanent Magnet Motors
1/8 – 3 HP for Single-Phase Controls Indiana General
Permanent Magnet Motors

Shunt Wound DC Motors
FOR 3-Phase Controls TEFC

DC Motors
For 3-Phase Controls
Open Drip Proof

Comparison of Motors when using SCR and PWD Drives
Most Permanent Magnet (PM) motors were designed to be used with Silicon Controlled Rectifier (SCR) DC drives. With the advent of Pulse Width Modulated (PWM) drives, LIKE THE QDT SERIES, several things occur which allow the same motor to produce a higher Horse Power. This is a result of the form factor of a PWM drive being much less than that of a SCR DRIVE. The typical form factor for an SCR drive is 1.4 while the form factor for a PWM drives is less than 1.05. One of our Suppliers has prepared the following list of PM motors which we recommend when using our QDT series of drives. Notice the increase in horsepower when using PWM drives.

Volts/Hertz, Sensorless
Vector and Flux Vector
drives ranging
from 1/4 to 200 HP.

Non Regenerative
and Regenerative
drives from 1/6
to 500 HP.

AC motors from Baldor,
AO Smith, Lincoln,
Marathon and Reliance.

DC motors from Baldor
and AO Smith.