FW Murphy Compressor Controls

Centurion™ C4 Overview

Features

• Fully configurable control and monitoring system. Applications include reciprocating / screw compressors and pump systems.

• System is expandable to meet most three-stage compressor applications.

• User-configurable with Windows®-based software. Allows the operator to point and click to implement standard processes. All I/O points can be custom configured.

• No programming experience required.

• Local and remote communications, Modbus® RTU via RS485/232.

• USB 1.1 support for laptops without a serial port.

• Upload / Download capabilities for configurations and set points.

• Approved Certification for Class I, Division 2, Groups B, C & D areas.

• Shutdown history list (Last 20 events)

• Event history list (Last 32 events)

• Active alarm list

• 10 maintenance timers

• Run hourmeter

• Support for No-Flow Totalization

• Number of starts per hour (electric motor)

• 6 PID loops w/ override (up to three each)

• Configuration templates provided for simple user configuration

• Configurations stored in non-volatile flash memory

• Set points stored in non-volatile EEPROM memory

LCDT Overview

Features:

• Monitor Engine or Motor Driven Pumps and Compressors
• 47 Normally Open (N.O.) or Normally Closed (N.C.) Sensor Inputs
• CSA* and Factory Mutual** Listed
• Rated for Hazardous Locations
  

Power: Supplied by CD ignition of an engine, 120 VAC line, or by 12 or 24 VDC battery.

Power Inputs (Operating Voltage):
LCDT-PS-CD (R)-P: 90-250 VDC, CD ignition, positive ground.
LCDT-PS-CD-N: 90-250 VDC CD ignition, negative ground.
LCDT-PS-120/24/12: 120 VAC (6 VA), 24 VDC (1 watt), 12 VDC (0.5 watts).

Sensor Inputs: Accepts up to 47 sensors (NC version only 45) via a ribbon cable. The LCDT system was designed to be used with sensor switches having normally open or normally closed contacts such as Murphy Swichgage instrument. NOTE: An approved isolation barrier such as a thermocouple type barrier, must be used between sensor switch and input terminals if sensor outputs come from any energy storing device such as a relay or transistor.

Relay Outputs Ratings:
LCDT-PS-CD (R)-P Contact rating: 4A, 1/20 HP, 125/250 VAC/3A, 30 VDC.
LCDT-PS-120/24/12 Contact Rating: 5A, 28 VDC. 120 VAC (resistive).

FET Outputs: LCDT-PS-CD-N rating (for fuel valve and ignition ground): 0.5A @ 250 V.

Alarm Relay Contact Rating: 4A, 1/20 HP, 125/250 VAC/3A, 30 VDC.

Operating Temperature: Module (head): -40 to 185°F (-40 to 85°C).

Power Supply: 0 to 158°F (-18 to 70°C)

Storage Temperature: -40 to 302°F (-40 to 150°C).

Case: LCDT-NO/NC (module): anodized aluminum.

Power Supply (all models): Explosion-proof aluminum.

Multiplexer Scan Rate: Scans all 47 sensors in 0.7 sec.

Start-Run/Test Timer: Standard 5 minutes, specify other, up to 7 minutes maximum (in 1 minute increments).

Laboratory Approvals: CSA* and Factory Mutual System** Listed for Class I, Division 1, Group D, Hazardous Locations.

MX Overview

Any mix of MX-Series modules can be added to enable Digital and Analog I/O and Temperature inputs for communication and monitoring by the master controller.

• Dedicated I/O expansion modules
• Various models available to I/O requirements
• Communications via CAN with Centurion™ controller
• Type J or K Thermocouples or 100Ω Pt 3-wire RTD temperature measurement
• B+ or B- Digital inputs
• Low Voltage Digital outputs (sinking)
• 0-5V or End-of-Line 0-25mA Analog inputs
• Din Mounting case

S1501 Overview

Features

• Alarm/Shutdown for 32 or 64 N.O. or N.C. Sensors

• Operating Sequence Selection

• Field Adjustable Sensor Nomenclature

• Selectable Sensor Lockouts Class A, B, C or P

• Built-In Tachometer/Overspeed Function

• RS232 or RS485 Modbus RTU Communications

• Two Start/Run Timers and Elapsed Time Meter

• CSA Certified or NRTL Approved for Use in Class I, Div. 1 Grps. C & D Hazardous Locations

TTD Series Overview

Features

• Fully-Configurable Fault Annunciator

• Alarm and Shutdown Control System for Engine-Driven Pumps and Compressors

• Monitors 48, User-Configurable, Sensor Inputs From N.O. and/or N.C. Censors

• User Selectable Templates Provide Ease of Retrofit by Selecting Configuration of Existing Annunciators via Display Keypad or Download From Computer With Windows Based MConfig® Installed.

• Intuitive Icons Display Status and Operating Mode for Ease of User Operation.

• Serial Communications Port with Selectable Baud Rates up to 38,400

• Universal Power Supplies Powered by 12/24VDC or CD Ignition (Neg. Ground).

• CSA Class I, Division 2, Groups B, C, and D.

• Optional Tachometer Function with Overspeed and Underspeed Protection Using CD Ignition or Magnetic Pickup Input.

• Optional Prelube and Postlube Functionality.

• Optional lubricator No-Flow Detection for up to 4 Proximity Switches.

• One Display Head is Common to all Configurations Allowing Fewer Spare Parts Required to be Maintained in the Field.

• Internal Monitoring of DC Supply, CD Ignition, and Internal Battery Voltage