Web Tension and Control

Power Amplifiers PA-90/PA-2

(Magpowr)

Applications:

Web Tension and Control

PA-90 and PA-2 Power Amplifiers are designed to provide the current required for controlling magnetic particle brakes and clutches in any tension control application. For use with Digitrac 2, EZ-Trac, or Versatec, the PA-90 and PA-2 can be mounted inside the system’s enclosure, and receives its control signals directly from the tension control. The PA-90 is used to control 90 VDC brakes and clutches only, while the PA-2 can be used to control either 24 or 90 VDC units. With 115 vac input, either power amplifier will provide a –3.6 to 90 VDC, current regulated output to accurately control a 90 VDC brake or clutch. With a 24 VDC input, the PA-2 can also provide a –1.2 to 24 VDC, current regulated output to accurately control a 24 VDC unit.

Delivers the extra power required to control any size magnetic particle

brake or clutch.

Output is current regulated for better system response.

Selectable operating current ranges for optimum controllability.

Mounts inside any Digitrac 2, EZ-Trac, or Versatec enclosure.

Reverse current for minimal drag torque is standard.

Input: PA-90: 115 vac ±10%, 50/60 Hz

PA-2: 115 vac ±10%, 50/60 Hz or 24 VDC ±10%

The PA-90 is used to control 90 VDC brakes and clutches only.

The PA-2 can be used to control either 24 or 90 VDC units.