Maestro Universal Controllers

Maestro Universal Centrifugal compressor Control system

M/s Cameron® Compression

Systems (Now a part of Ingersoll Rand) launched the Maestro Universal

compressor control system in 2010 as part of Cameron® Maestro

Compressor control series. Cameron Maestro universal controller is a

Windows CE-based system with advanced control and communication


  • Ease of Use for customer
  • Built-in commissioning Wizard
  • Configurable rather than programmable
  • Windows look and feel with easy to navigate information
  • Optimal compressor control techniques
  • Only OEM panel line including MCM
  • Optimize energy efficient operation – lower system pressure set point
  • Selections aiding integration of peripheral equipment, Easy to service by design, Store and restore model specific configuration with USB drive

Maestro Universal controller Input / Output (IO) Module detail

  • 10 digital inputs (24VDC)
  • 11 digital outputs (24VDC)
  • 13 analog inputs 4-20 mA signal
  • 4 analog outputs 4-20 mA signal
  • 10 RTD input – 100 ohm platinum
  • Up to three IO per system for installation of extended features

Description of Maestro Universal Product Features

  • Advanced communications
  • Ethernet Connectivity for remote monitoring and Maestro universal remote control.
  • Built-in Intranet Web-server provides remote monitoring and operation details through custom website.
  • Built-in USB port is available for configuration and history export, Import and software update.
  • Built-in Modbus TCP/IP protocol to connect to a PLC or Scada computer of the factory for condition monitoring, remote control and running.
  • Built-in Modbus RTU protocol with quick wiring connection.
  • Optional Profibus protocol
  • Event driven E-mail alerts
  • USB Flash drive support
  • Controller configuration transfer
  • Data logging to delivery of operation related reports from the unit with complete description
  • Ease of Use : Build confidence among user
  • Easy to use Graphical Display, easier maintenance
  • Built-in configuration Wizard
  • Operator functions similar to legacy Cameron products
  • Customizable using simple configuration utilities
  • Selectable control modes
  • 5 Loop allows lower minimum operating pressure and energy savings
  • 4 Loop allows accurate + / – pressure control
  • Aux control loops for misc. equipment control
  • Expandable Input / Output Instrumentation count
  • Up to three IO modules to connect aftermarket auxiliary systems
  • Energy savings
  • MCM (Multiple Compressor Management) system provides multiple compressor coordination.
  • 5 loop pressure control allows lower operating pressures more efficient compressor operation.
  • E-mail Alerts
  • Send e-mail message on compressor alarm or trip event
  • Web-server Remote Operation
  • An extension of standard Web-server function
  • Allows start/stop, load/unload, operator level set point changes
  • Auxiliary Control Loop Software
  • Provides additional generic PID loop
  • Can be used for water valve control, cooler fans, etc.
  • MCM (Multiple Compressor Management)
  • Provides multiple compressors to work as one air system
  • Operation Scheduler
  • Programs date and time of operational changes (“Programmable thermostat” function)
  • Auto Start / Stop
  • Compressor will start automatically based on a settable system pressure threshold

Maestro Universal Basic Information

  • Windows CE based microprocessor
  • 10″ 640×480 color LCD display
  • Inputs:10 digital (24VDC), 13 analog (4-20mA ), 10 RTD inputs (100 ohm platinum)
  • Outputs: 11 digital (24VDC), 4 analog (4-20mA)
  • Motor Current: Built-in current transmitter
  • Current Rating: 0-5AAC
  • Voltage Rating: 0-30VAC max
  • Enclosure: NEMA 4 / IP55 (outdoor watertight & dustproof)
  • Input Voltage: 120 VAC
  • Input Voltage Range: 90-260 VAC
  • Rated Frequency Range 50-60Hz
  • Internal Power Supply: 24VDC
  • Power Consumption: 150W
  • Temperature Operating Range: 32˚F – 122˚F (0˚C – 50˚C)
  • Temperature Storage Limits: -10˚F – 140˚F (-23˚C – 60˚C)
  • Humidity Operating Range: 92.5% Relative Humidity
  • Safety Approvals: UL, CSA and CE

Maestro Universal Software Options for customer

  • Auto start/stop
  • Constant Pressure
  • Operation scheduler
  • Auxiliary loop controls
  • Performance log
  • Sequencer

Hardware Options

  • Additional IO module
  • Control panel cooler
  • NEMA 4X, IP66 enclosure
  • Purge Z valve
  • Audible/visual alarm annunciation
  • On/off dry contacts

Communications in the box

  • Remote monitoring with built-in web server
  • MODBUS protocol interface (RS-485 serial port)
  • PROFIBUS protocol interface
  • USB interface
  • Ethernet interface
  • CANbus inter-module communication

Maestro Universal Unique Features

  • Set-up wizard for configuration
  • Additional PC based configuration software
  • Selectable home page
  • Alarm and trip e-mail alerts
  • Data logging performance history logs

Maestro Universal Operator Interface

  • 10″ Color display with two color usage
  • Multiple languages for global destinations
  • Numeric and operational direction keys
  • Local/remote selection keys
  • Auto/unload selection keys
  • Acknowledge and reset buttons

Extended Operations and Functional Options

  • Condensate valve control
  • Oil heater interlock and control
  • Motor bearing / stator temp monitoring
  • Additional vibration and RTD channels
  • Differential oil pressure across oil filter
  • Oil level switch
  • Panel purge switch
  • Common alarm/trip dry contacts
  • Temperature compensated flow
  • Surge detection and count
  • Auto surge test
  • Two process control functionality
  • Turbine driver interface

Control Panel Monitoring Functions

Control Modes

  • 5-loop constant pressure with selectable auto load/unload enable
  • 5-loop auto dual control
  • Configurable monitoring and control points
  • Constant mass flow
  • 4-loop constant pressure control (selectable)
  • 4-loop auto dual control (selectable)

Turbo Airtech can provide, program, and repair these controllers on site for these state-of-the-art systems and related products. Turbo Airtech can also provide spare parts such as I/O module, power modules and LED backlights for repairs if necessary in India or even for our International customers.

Maestro Universal controller manual is available from the official source.

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