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FOR SULLAIR TS32/25 ROTARY SCREW COMPRESSORS

As part of our AirStar® family of controllers, Case offers a unique control scheme for Sullair two-stage, rotary screw compressors. The AirStarPD-SAS™ upgrade provides significant advantages over the OEM controls, delivering tighter control and increased reliability.

The controls provided with Sullair TS32/25 series compressors use a microprocessor to control the inlet and spiral-valve via mechanical/pneumatic pressure regulators. The problem is that this control scheme requires regular cleanings and fine tuning to operate efficiently. Pneumatic devices use hot, wet, unconditioned air straight off the top of the separator lid. Shuttle valves stick, regulators clog, control-line filters clog and auto-drains fill with rust and condensate. This need for continuous maintenance is the weak link.

Replacing the pneumatic control scheme with electronic controls, I/P transducers, and a modern PLC based control solution will yield noticeable results. Tighter pressure control, improved efficiency, faster system response, less maintenance, and valuable data are just some of the added benefits.

AirStarPD-SAS™ - Product Datasheet

AirStarPD-SAS™ - Get A Quote

FEATURES & BENEFITS

Elaborate HMI Functionality

Allows complete configuration, tuning, troubleshooting, and operation of the compressor.

Familiar Allen-Bradley Modular PLC Platform

Easily supported—no proprietary parts are used.

Support

Whether on-site, by phone, or via modem connection, support is prompt, effective, and available 24/7.

Documentation

Thoroughly addresses set-up, tuning, troubleshooting, and operations.

Ethernet Communications

Native and Modbus is optional for connection to any third party DCS, MIS, or SCADA systems.

Enhanced Control Function for Electro-Pneumatic Controls

Two I/P transducers - For Sullair Spiral Valve
Two Analog Outputs

Variable Speed Drive

Control is optional for Rotary Screw Compressors.

Compatible with 3PX-Backbone™

Permits electronic integration with numerous third party controllers.

BASE SYSTEM

The base system is defined as having eight analog inputs and ten digital outputs which are dry contacts. Additional variables for display, alarming, machine trip, and start-permissive can be added and configured in the field. When requested, the analog inputs can be increased to eighteen. Instruments are not included as part of the controller and may be provided separately, or existing instruments may be reused.

HARDWARE SPECIFICATIONS

*The following configuration is an example of a standard build. Each control system can be customized to meet your specific requirements.

ENCLOSURE

Rating

Nema 4/12

Dimensions

24"h x 24"w x 12"d

Color

Light Gray

Weight

115 lbs.

ALLEN BRADLEY PLC COMPONENTS

Processor

A-B Micro850

Analog Inputs

(4-20mA, 1-5V)

Eight

Digital Inputs

(24VDC)

Fourteen

Digital Outputs

(12-250 VAC/VDC)

Ten

Analog Outputs

(4-20mA, 1-5V)

Two

I/P Transducers

(4-20mA, 1-5V)

Two

FRONT PANEL DEVICES

HMI

7" PanelView Plus 800 (Touch)

Emergency Stop

Push Button

Control Power

Selector Switch

COMMUNICATIONS

Ethernet

Port Used for Connection to HMI

Serial Port

Used for Connection to Modem or Optional Modbus

Modbus

Connection Optional

POWER REQUIREMENTS

Power Requirements

120VAC, 10 amps

COMMON OPTIONS

Enclosure System

•Nema 4X SS Enclosure Rating
•Purgeable Instrument Access Door for HMI
•Vortec Panel Cooler
•Panel Air Conditioning
•Panel Heater
•Larger Display

PLC Components

•Analog Inputs - Up to Eighteen
•Analog Outputs - Up to Four

Control Scheme

•Variable Speed Drive - Optional

480V Power Package

•Oil Heater Contactor
•Blower Motor Starter
•Control Circuit Transformer
•Lockable Disconnect
•Main Motor Starter

Communications

•Modbus RTU
•Ethernet Switch (Option) Connection to DCS

Ready to

TAKE

CONTROL?

Compressor automation isn’t only about efficiency and reliability. It’s about delivering a solution that lends peace of mind. An autonomous, real-time monitoring, state of the art product that solves the need for tedious, daily, manual manipulation, and guess-work. With real-time monitoring and data collection you can rest easy knowing you’re getting the most out of your system. Don’t settle… do more, take control.

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Case Controls

Case Controls