Magpowr | Power Amplifiers and Current to Pressure Transducers Overview

Complete control is the goal of any operation utilizing brakes and clutches. MAGPOWR’s PS-24 & PS-90 Power Supplies provide a small amount of reverse current circuitry as a standard feature to minimize the drag torque of a clutch/brake, allowing greater controllability in the lowest torque range. These power supply units control any size MAGPOWR clutch or brake with optimum resolution. MAGPOWR’s current-regulated power supplies are used for the control of magnetic particle clutches and brakes in unwind, rewind, or intermediate tension control applications. With selectable current ranges, these compact enclosures can be mounted inside the machine cabinet, allowing your operator to adjust torque through a remotely mounted potentiometer or with a 0 to 10 vdc control signal from MAGPOWR Open Loop and Closed Loop controllers, or any control device like a computer or PLC.

MAGPOWR’s PA-90 and PA-2 Power Amplifiers are designed to provide the extra current required for controlling magnetic particle brakes and clutches in any tension control application. For use with DIGITRAC II, EZ-Trac, or VERSATEC, the PA-90 and PA-2 can be mounted inside the control'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. MAGPOWR’s power amplifiers also include reverse current circuitry as a standard feature, thus allowing greater controllability in the lowest torque range of the clutch or brake being operated.

MAGPOWR’s IPT-E Current to Pressure Transducer provides two benefits right out of the box: its single manifold design facilitates its small size, and the unit requires absolutely no calibration, so it’s ready-to-use immediately. Versatile and easy to use, the IPT-E provides superior response, accuracy, and flow characteristics, which are critical in precise tensioning applications. The unit operates on 115/230 VAC, normal dry shop air, and accepts a 4-20 ma control input signal.

Space is always at a premium inside working machinery. MAGPOWR knows this well, and therefore constructed its IPT Current or Voltage to Pressure Transducer as a single-manifold design to surface mount inside a machine enclosure. It is designed to be mounted in any orientation with no affect on performance and offers multiple mounting options. The IPT can be mounted on standoffs through four provided mounting holes, or on a DIN 35 rail using the provided mounting clips, or in a customer supplied DIN 35 Modular Circuit Housing. Perfect for control applications, the IPT is ready to use right out of the box, requiring no calibration and providing superior response, accuracy, and flow characteristics. Versatile and easy to use, the IPT is an ultra-compact PC board level pressure controller that operates on 115/230 VAC and filtered dry shop air, and can accept either a current or voltage control input signal.

Versatility, accuracy, durability and ease of use. These are the things you look for in a current-to-pressure transducer, and that’s exactly what you get in the MAGPOWR IP-80. Built into this compact, vibration- and shock-resistant industrial duty unit is an accurate, easy-to-read pressure gauge that monitors output pressure. The flexible IP-80 operates on normal filtered shop air and allows a wide variation in supply pressure, offers high flow and exhaust characteristics to insure rapid response of any clutch or brake and can be placed almost anywhere. The IP-80 includes the transducer, 20-psi reference regulator, dual reference air filters with automatic drains, air regulator and volume pressure booster.

Safety is the key to any operation, that’s why the MAGPOWR IS-2 Intrinsically Safe Load Cell Amplifier is so valuable and important. The Model IS-2 amplifier provides intrinsically safe circuitry for UL Listed MAGPOWR load cells. It is specifically designed for safe, accurate measuring and controlling web tension in hazardous locations. When used with UL listed MAGPOWR load cells, the IS-2 is UL approved for Class I, Groups A, B, C and D; Class II, Groups E, F, G and Class III. This allows the load cells to be mounted directly in the hazardous area without air purging. The IS-2 amplifier is compatible with all MAGPOWR UL listed load cells, tension readouts and tension controls.