CAT Main Control Unit PMC-D/PMC-D20

The intrinsically safe Cat® PMC-D control is used on shearer or plow faces to provide high level AFC (armed face conveyor) and plow automation. Each Drive unit needs to be equipped with one PMC-D control unit and equivalent I/O to operate the CST drives or UEL gearbox functions. In such a system a Cat PMC-V provides the Human Machine Interface (HMI) to interfere with the PMC-D controls to operate manual mode, visualize and change parameters and show actual process values. Within a PMC-D system minimum one and typically up to 3 PMC-Vs are in equal operation. The PMC-D system can control extremely sensitive the speed and torque of highly powered AFC CST drive. Using Profibus network all PMC-Ds and PMC-Vs in a system could exchange process data over long distances with high frequency.

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Overview

Components

Operating System

µITRON RTOS

Processor

32Bit RISC Microcontroller TX1940CYAF, 32MHz, internal RAM 10Kbytes, ROM 256Kbytes

RAM Memory

4Mbytes CMOS Static RAM, 4Mbytes Flash

Electrical Sockets

Socket 1 - Pin 1

Optocoupler Anode

Socket 1 - Pin 2

Relay Contact NO: a

Socket 1 - Pin 3

Relay Contact NO: b

Socket 1 - Pin 4

Optocoupler Cathode

Socket 10 - Pin 1

+12 V (output)

Socket 10 - Pin 2

Multi Mode Input 3

Socket 10 - Pin 3

+8.2 V (output)

Socket 10 - Pin 4

GND

Socket 11 - Pin 1

+12 V (output)

Socket 11 - Pin 2

Multi Mode Input 6

Socket 11 - Pin 3

+8.2 V (output)

Socket 11 - Pin 4

GND

Socket 12 - Pin 2

TP a

Socket 12 - Pin 3

TP b

Socket 13 - Pin 2

CM-Sensor +

Socket 13 - Pin 3

CM-Sensor -

Socket 13 - Pin 4

CM-GND

Socket 14 - Pin 2

CM-Sensor +

Socket 14 - Pin 3

CM-Sensor -

Socket 14 - Pin 4

CM-GND

Socket 15 - Pin 2

CM-Sensor +

Socket 15 - Pin 3

CM-Sensor -

Socket 15 - Pin 4

CM-GND

Socket 16 - Pin 2

CM-Sensor +

Socket 16 - Pin 3

CM-Sensor -

Socket 16 - Pin 4

CM-GND

Socket 17 - Pin 2

CM-Sensor +

Socket 17 - Pin 3

CM-Sensor -

Socket 17 - Pin 4

CM-GND

Socket 18 - Pin 2

CM-Sensor +

Socket 18 - Pin 3

CM-Sensor -

Socket 18 - Pin 4

CM-GND

Socket 19 - Pin 2

CM-Sensor +

Socket 19 - Pin 3

CM-Sensor -

Socket 19 - Pin 4

CM-GND

Socket 2 - Pin 1

+12 V (A) (output)

Socket 2 - Pin 2

Serial Interface: RxD_0

Socket 2 - Pin 3

Serial Interface: TxD_0

Socket 2 - Pin 4

GND

Socket 20 - Pin 2

CM-Sensor +

Socket 20 - Pin 3

CM-Sensor -

Socket 20 - Pin 4

CM-GND

Socket 3 - Pin 1

+12 V (B) (output)

Socket 3 - Pin 2

Serial Interface: RxD_B

Socket 3 - Pin 3

Serial Interface: TxD_B

Socket 3 - Pin 4

GND

Socket 4 - Pin 1

+12 V (C) (output)

Socket 4 - Pin 2

Serial Interface: RxD_C

Socket 4 - Pin 3

Serial Interface: TxD_C

Socket 4 - Pin 4

GND

Socket 5 - Pin 1

+12 V (C) (output)

Socket 5 - Pin 2

Switch 1

Socket 5 - Pin 3

Switch 2

Socket 5 - Pin 4

GND

Socket 6 - Pin 2

Profibus: a (internal)

Socket 6 - Pin 3

Profibus: b (internal)

Socket 7 - Pin 1

+12 V (Power Supply)

Socket 7 - Pin 4

GND (Power Supply)

Socket 8 - Pin 1

Multi Mode Input 4

Socket 8 - Pin 2

Multi Mode Input 1

Socket 8 - Pin 3

+8.2 V (output)

Socket 8 - Pin 4

GND

Socket 9 - Pin 1

Multi Mode Input 5

Socket 9 - Pin 2

Multi Mode Input 2

Socket 9 - Pin 3

+8.2 V (output)

Socket 9 - Pin 4

GND

Global Certifications

Types

Europe: ATEX

Types

U.S.: MSHA

Types

More certifications on demand

Types

Australia: IECEx, ANZEx

Types

China: MA

Types

Russia: GOST

HEALTH for Longwall Vibration Analysis

Provides vibration monitoring functionality for longterm health monitoring of the following longwall related equipment:

• CST gearbox and relating motor • UEL gearbox and relating motor

Provides vibration monitoring functionality for longterm health monitoring of the following longwall related equipment:

• Shearer haulage and ranging arm gearboxes • Water/HFA pump station

Provides vibration monitoring functionality for longterm health monitoring of the following longwall related equipment:

• Stage loader gearbox and relating motor • Crusher and relating motor

Ripper

Height

148.0 mm

Height

125.0 mm

Generator Set Dimension

Length

335.0 mm

Length

335.0 mm

Moldboard.

Width

278.0 mm

Width

279.0 mm

Electrical Data

Supply Current - Maximum Ratings

1.5 amps

Supply Current - Typical Value

1.0 amps

Supply Voltage - Maximum Ratings

9.5 V - 13.2 V

Supply Voltage - Typical Value

12 V DC

Environmental Data

Temperature - Maximum Ratings

-20° C - +40° C (-4° F - +104° F)

Temperature - Symbol

Tamb

Temperature - Typical Value

20.0 ° C

Attributes of PMC-D/PMC-D20 Control Unit

Robust stainless steel design
Highly reliable OS37 plug technology for complete gear box control
SKK24 hose cables for bus system and additional I/O connection
IP 68 rating (48 hr @ 1 m [3.28 ft] under water)
HMI with 24 multi feedback keys (pressure point, led light)
63.5 mm (2.5 in) graphical monochrome display
Multi language support
Maintainability (brass bar mounting)
Optional eight (8) additional ports for acceleration sensors (PMC-D20)

Exemplarily System Layout of a PMC-D System (Shearer Face)

Main Features PMC-D Drive Control System

“Distributed controller Intelligence per drive”
Synchronized heavy load start up
Soft start up
Load sharing between conveyor drives
Overload protection
Motor braking feature
Further used in plow operations:

- Precise position detection - Overload protection

Additional Features

Usage of PMC-D for chain tensioning of AFC (front and rear conveyor) and Beam Stage Loader (BSL)
In conjunction with Slacktronik direct BSL chain slack control and relating chain tensioning
Usage of PMC-D for high accurate plow position control and monitoring
Support VFD controlled drive applications
Optional integration of “HEALTH for Longwall Vibration Analysis” function with PMC-D20 control unit:

- Acceleration sensor interface for 8 sensor - Integrated communication for vibration analysis

Coming soon...............