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WEIGH FEEDER and SCALE INTEGRATOR and CONTROLLERS

Sixty plus years of working closely with new customers as well as our installed client base permitted us to tailor our instrumentation and controls to the collective needs required by this industry. We constantly draw on this experience and knowledge to develop, design and deliver the most powerful and universal weigh feeding instrumentation the market has to offer.

Variable Frequency AC Motor Drives

THAYER SCALE uses a number of different Variable Frequency Controllers to match a particular applications unique requirement. For general application Thayer Scale will use either Allen Bradely Power Flex 40© or SEW Movitrac© LTE-B. Should a customer standardize on a particular manufacturer of controller Thayer Scale will try and use that brand as long as it meeds our standards for control and accuracy.

AC Output Power Control Assembly (PCA)

Thayer’s Power Control Assembly (PCA) or Drive Controller is designed to accept a standard 230-380-480VAC 3 Phase 50 or 60 Hertz Power Source. This unit takes the incoming AC line voltage and converts it to an adjustable frequency output by means of an Electronic Drive Controller. The Drive Controller is controlled by either a Manual Speed Potentiometer or by an External Input Speed Signal and can be used in applications that meet the following specification ranges:

  • ½ – 2 Horsepower
  • 380-480 VAC
  • 3 Phase Invertor Duty Induction Motors

consult factory for higher horse power sizes.

SCR/DC Output Power Control Assembly (PCA)

The Thayer Power Control Assembly (PCA) is designed to accept standard AC Power Sources.

This unit takes the incoming AC line voltage and converts it to an adjustable DC voltage by means of an SCR controller. The DC voltage’s amplitude is controlled by either a manual speed potentiometer or by remote current signal. The adjustable DC voltage is capable of controlling conventional shunt wound or permanent magnet DC motors.

PCA-VIB for Electromagnetic Vibratory Feeders Power Control Assembly (PCA)

The Power Control Assembly (PCA) or Drive Controller is designed to accept standard AC Power Sources. This unit takes the incoming AC line voltage and converts it to an adjustable output voltage by means of an Electronic Drive Controller. The Drive Controller is controlled by either a Manual Speed Potentiometer or by an External Input Speed Signal and can be used in applications that meet the following specification ranges:

  • PCA-VIB-120 0-110 VAC Vibrating Tray Motors with a full load current rating of less than 15 amperes
  • PCA-VIB-240 0-220 VAC Vibratory Tray Motors with a full load current rating of less than 15 amperes

NOTE: Conventional electromagnetic vibrating tray motors (full wave rectification)

TS-520 Multi-Instrument Monitor

Multi-Instrument Monitor for all THAYER weigh scales

The TS-520 Operator Interface Terminal is a graphic touch screen panel that is capable of supporting up to twelve (12) THAYER weigh feeders. Feeder data is graphically displayed and includes historical trends, statistical control, diagnostics, help, and much more.

Auditor NTEP Certified Belt Scale Monitor

THAYER AUDiTOR™ is a PC-based data collection and software package running on an industrial PC (IPC). It provides a link between a plant and the Series 5200 NTEP approved secure in integrator. It has been designed to meet the requirements of NTEP, AAR, and HB-44 for rate trending and printing of deliveries with date and time stamping.

The Bridge Breaker® & Flow Promotion Device Controller

The Bridge Breaker® Controller (BBC) is a self-contained unit capable of operating a variety of Flow Aid devices (FADs) for the purpose of insuring material flow thru hoppers, silos chutes or vessel. It can control various devices such as Thayer’s The Bridge Breaker®, vibrators, Air Cannons, Air Pads, etc. or combinations thereof.

Customer Control Panels and Explosion Proof Instrumentation

Thayer Scale has continually developed our in-house capabilities for control panel fabrication.The fabricated assemblies are conceived for use with our weighing and volumetric feeders and can be customized to include ancillary equipment as well. These panels are ready for you to adapt to your specific application by providing finalized wiring diagrams, connecting your field wiring, programming and commissioning. Thayer Scale has satisfied numerous customers with design and fabrication of custom electrical and instrumentation panels and control consoles.

SCR/DC Variable Speed Motor Drives

The controller is designed to be integrated into a drive package selected and wired by the user. As such, it may be necessary to provide either a number of required operator’s controls or equivalent relay contacts.

The control functions are:

  • Speed adjust or torque control potentiometer
  • Start pushbutton switch, or relay contact
  • Stop pushbutton switch, or relay contact
  • Forward/Reverse switch