Hauhinco PMC-R/2 Shield Controller Unit

Module Feature

PMC-R/2 is an intrinsically safe controller developed by Hauhinco for coal mine longwall hydraulic supports.

It is installed individually on each hydraulic support, equipped with local operation buttons and display panel. It collects real-time signals from pressure sensors, displacement sensors and inclination sensors, and outputs driving signals to the pilot solenoid valve of the support. It supports automatic sequence actions such as support advance, push conveyor and support withdrawal, and can realize shearer tracking and automatic follow-up control under the longwall automation system. It adopts explosion-proof intrinsically safe design, widely used in underground coal mining working faces.

Working principle

The controller reads sensor data in real time and compares it with the action program parameters.

When the operator triggers local or remote instructions, the controller outputs signals to drive the pilot valve to switch the hydraulic oil circuit and complete the support action. It uploads support status, pressure data and alarm information to the main control host through the mine CAN bus network.

Onboard components

Intrinsically safe main control board, sensor signal acquisition circuit, CAN communication interface, local operation panel, OLED status display, pilot valve drive output circuit, explosion-proof sealed housing.

LED indicators

Front LEDs indicate power supply status, bus communication link, action execution status and fault alarm.

Hardware self‑diagnosis

Built-in supervision detects sensor disconnection, communication channel loss, internal over-temperature and output drive abnormality. Fault codes and alarm records can be viewed on the local panel or upper mining monitoring host.

Programming software

Hauhinco Longwall Configuration Software, used for support action logic programming, sensor calibration, action parameter setting and fault diagnosis.

Electrical & Process Parameters

Model:PMC-R/2 Brand:Hauhinco Device type:Intrinsically safe hydraulic support controller Supply voltage:12V DC (intrinsic safety power supply) Function:Signal collection and automatic action control for longwall mining roof support

Mechanical & Structure

Mounting:Bracket bolt mounting on hydraulic support Protection class:IP68, Ex ia I Ma intrinsically safe certification Housing:High-strength alloy sealed enclosure

Environmental

Operating temperature:-10℃ ~ +60℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:5~95% non‑condensing

Certification:CE, ATEX intrinsic safety

Status:Original Hauhinco mining automation spare

Installation

Fix the controller on the reserved mounting seat of hydraulic support. Connect intrinsic safety power cable, sensor cables and CAN bus communication cable, calibrate sensor zero point before commissioning.

InterfaceMulti-core sensor terminal, CAN bus communication port, pilot valve drive output terminal, local operation interface.

Diagnostic

No communication: Damaged CAN cable, terminal water ingress or bus terminal resistance loss. Abnormal action: Sensor calibration deviation, blocked hydraulic passage or drive circuit failure. Local display black screen: Loss of intrinsic safety power supply.

Product Brief

Hauhinco PMC-R/2 shield controller, intrinsically safe control unit for coal mine longwall hydraulic support automation.