MC3 2020 Advanced Weigh Belt Controller

Specifications | Manual

The MC3 2020 Controller is designed to be the ultimate controller for belt weighing and feeding applications. The MC 3 2020 controller can be used as a: MC Cubed Touch Screen Controller
Belt Scale Integrator: Weighing, Totalization and Alarms for Belt Scales
Belt Weigher: Weighing, Totalization and Alarms for Integrated Belt Weighers
Belt Feeder Controller: Closed-loop feedrate control of integrated Weigh Belt Feeder
Batching Controller: On-demand delivery of a set amount of material
Pre-Feeder Controller: Control of feed device upstream of the Belt Weigher

 


Instream Calibration

Another advanced capability of the MC3 2020 is the ability to perform an “Instream Calibration” while feeding material. This can be accomplished by using a material storage hopper mounted on load cells supplying material to the infeed of the weigh feeder. The signal from the load cells can be used to calibrate the weigh feeder even as a material is being fed by the belt.
Operator Settable parameters include:
  • Feedrate Setpoint
  • Belt Speed Limits
  • Belt Load Limits
  • Feedrate Limits
  • Setpoint Mode
  • Pre-Feeder Parameter


Process values displayed include:

  • Feedrate
  • Belt Load
  • Belt Speed
  • Feedrate Setpoint
  • Sub-Total & Master Total
  • Output % to drive
  • Output % to Pre-Feeder
  • Batch Total


Standard Communication Interfaces

  • Merrick Serial Communications Protocol
  • Modbus ASCII
  • Modbus RTU
  • Allen Bradley DF-1


Optional Communication Interfaces

  • EtherNet (A-B and Modbus)
  • DeviceNet
  • ControlNet
  • Profibus
Each Physical Digital Input and Digital Output can be assigned (mapped) to a logical I/O Function. In addition, the normal state of the input or output can be assigned such as normally open/closed, inverted or forced on/off.
Commonly used logical Digital Inputs include but are not limited to:
  • Run permission
  • Feeder Block
  • Gravimetric Mode
  • Print
  • Belt Running
  • Diverter Valve
  • Start & Stop Batch


Commonly used Logical Digital Outputs include but are not limited to:

  • Faults Warnings
  • Low & High Feedrate
  • Good Feedrate
  • Low & High Belt Load
  • Belt Slippage
  • Low & High Speed Limits
Logical Analog Inputs and Outputs
Commonly used Analog Inputs:
  • Feedrate Setpoint
  • Belt Load Setpoint
  • Panel Meter Level


Commonly used Analog Outputs:

  • Control to Signal Motor Drive
  • Feedrate
  • Belt Load
  • Belt Speed
  • Pre-Feed Control


Status Indicators include:

  • Controller State
  • Run Permission
  • Gravimetric
  • Feedrate State
  • Date & Time
  • Fault Indications
  • Pre-Feeder State
  • Batch State
Physical Inputs and Outputs
Standard I/O Includes:
  • Seven (7) Digital Outputs
  • Four (4) Digital Inputs
  • Two (2) Analog Outputs
  • One (1) Analog Input
  • DC Pulse Output for Totalizer
  • AC Pulse Output for Totalizer


Optional (Maximum) I/O:

  • Fourteen (14) Digital Outputs
  • Eight (8) Digital Inputs
  • Four (4) Analog Outputs
  • Two (4) Analog Inputs

MC3 2020 Advanced Weigh Belt Controller

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