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DRIVES AC & DC Variable Speed Drives

DRIVES AC & DC Variable Speed Drives

DRIVES AC & DC Variable Speed Drives

Product catalog summary

Technical Drawing and Dimensions

The document provides detailed mechanical dimensions primarily in inches with millimeter equivalents in brackets. Key dimensions include overall heights, widths, and mounting slot sizes. For example, mounting slots are consistently 0.19 inches (5 mm) wide, with multiple slots and conduit holes indicated for installation.

Electrical and Control Specifications

The text references an AC motor control system with adjustable speed and reversing capabilities. Control labels such as POWER, SPEED, FWD (forward), REV (reverse), and OFF are noted, indicating user interface elements or control states. The motor control includes parameters like minimum and maximum speed, acceleration, deceleration, torque, and current limits.

Component Identification and Circuit Elements

Various components are identified by codes (e.g., C501, D502, SCR501, IC501, R501, T501), suggesting a schematic or circuit board layout. These include capacitors (C), diodes (D), silicon-controlled rectifiers (SCR), integrated circuits (IC), resistors (R), and transistors or transformers (T). The presence of these components indicates a power control or regulation circuit for the motor.

Mounting and Installation Details

The document specifies four mounting slots of 0.19 inches (5 mm) width and two knockout holes of 0.88 inches (22 mm) diameter, facilitating mechanical installation. Dimensions for bottom plates and conduit holes are also provided to assist in physical integration.

Performance Parameters and Limits

Parameters such as torque limits, power output, current limits, and speed ranges are mentioned, indicating operational constraints and performance tuning options. The document references models (e.g., MMXL02, MMXL05, MMXL10) with corresponding heights and possibly other dimensional or performance variations.

Summary of Critical Information

  • All dimensions are given in inches with millimeter equivalents.
  • Motor control supports adjustable speed and reversing functions.
  • Electrical schematic components are identified for control circuitry.
  • Mounting provisions include four slots and conduit holes for installation.
  • Performance parameters include torque, speed, acceleration, deceleration, and current limits.
  • Multiple model variants with differing dimensions are noted.

This document appears to be a combined mechanical and electrical specification sheet for an AC motor control unit, detailing physical dimensions, control features, circuit components, and installation requirements.

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Catalog excerpts

DRIVES AC & DC Variable Speed Drives-1

Variable Frequency Drives Bison's variable frequency Drives feature a lightweight, plastic NEMA 4X enclosure, an isolated front end, minimum speed adjustment potentiometer (pot), output voltage doubling, DC injection braking, and automatic or manual restart when power is restored. Compact Size: 4.3" x 3.7" Easy to mount in small spaces with industry standard mounting hole pattern. Easy to Calibrate & set up: On board trimmer pot adjustments for boost maximum speed, acceleration, Torque "foldback' feature: Allows up to 200% torque for short periods to overcome intermittent peak loads, then reduces the torque to a preset safe level. 16kHz switching frequency, with option to change between 4 and 16 kHz in the field: A high switching frequency results in quiet motor operation.. Adjustments to a lower frequency if desired can be Everyday, engineers around the world poke, prod, weigh, test, analyze and generally dissect our products. ...Not that we mind. At Bison, we build all of our products using one simple philosophy: it's what's inside that counts. We have been defining gearmotor Robusticity™ Of course, it doesn't hurt to offer the industry's best service and support either. With rapid response at very stage of the engineering process, we keep you on top of your schedule. Our experienced team of field representatives offer on-the-spot consultation and trouble- shooting. And with the very best in applications engineering assistance, you never have to over- specify to get just what you need. Gear & Engineering Corp. 3850 Ohio Avenue • St. Charles, IL 60174

 Open the catalog to page 1
DRIVES AC & DC Variable Speed Drives-2

Bison's SCR speed controls are dual voltage drives that can control speed or torque. When torque mode is selected, the functions of the speed and torque pots change. The external potentiometer sets the torque reference, the on-board torque pot sets maximum speed and the on-board Max Speed pot sets maximum torque. Dual Voltage SCR Speed Control Speed Range and Regulation: 1 % regulation over 50:1 speed range. 1 % regulation over 60:1 speed range with the addition of a tachometer for feedback. 4 Quadrant Reversing: Regenerative / 4 quadrant drives have the ability to perform quick, contactorless,...

 Open the catalog to page 2

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