L0VR0211 EBox Flameproof Ex d Hydraulic Drill Rig Common Centre Manifold

The L0VR “EBox” is a flameproof-protected enclosure combining both hydraulic and electronic components into a single, compact manifold for control and monitoring of a complete roof drilling rig. The manifold attaches directly to the hydraulic porting interface of the drill rig. This does away with up to thirty hydraulic hoses – normally required when an external control manifold must be connected to a drill. These drilling rigs are typically mounted on mobile underground mining equipment for drilling roof holes and for placing roof-supporting bolts.

Internally, the E-Box features a microprocessor-based circuit board to proportionally control a number of solenoid-actuated hydraulic valves (also mounted inside the E-Box manifold). The electronic module monitors the spool position of key hydraulic valves and hydraulic pressure of secondary functions to establish if hydraulic outputs are responding to control inputs and to detect any unplanned operation. Real-time monitoring of hydraulic oil flow to the drilling feed function is used to establish drilling feed speed and depth.

A host control system controls and monitors the E-Box operation via an industry-standard CAN field bus connection.

Options Available

L0VR-options-available

Hydraulic Connections

Hydraulic-connections

Example Application

L0VR-example-application

Electrical Interfaces

Electrical-Interfaces
Specification

General

Parameter

Value

Type

Flameproof-protected drill rig control hydraulic manifold with integrated electronic control

Explosion-protection

IEC60079-1 – Flameproof – Ex d Group I

Functional Safety

IEC61508-compliant SIL2 Safety Functions

Spool valves continuously monitored for stuck spool conditions

Operating Temperature

-10°C to +50°C

Environmental Protection

IP66/67

Mass

164 kg (common core) / 193 kg (Left-hand Version) / 183 kg (Right-hand Version)

 

Electrical

Parameter

Value

Supply

24-volts D.C. +/- 10% (125 Watts maximum)

Communications

CAN 2.0B – Copper Twisted Pair (500 kbps)

 

Hydraulic

Parameter

Value

Spool Functions (Proportional)

Drill Motor Rotation – 35 litres / min
Drill Feed Up/Down – 32 litres / min
Timberjack Up/Down – 32 litres / min
Head Gripper Open/Close – 8 litres / min
Drill Tilt Left/Right – 8 litres / min
Drill Tilt Forward/Reverse – 8 litres / min

Pilot Functions

Drill Motor 2nd Speed Select 

External Water Valve Control 

Drill Guide Control

Working Pressure

200 BAR nominal / 250 BAR maximum

Oil Temperature

-10°C to +70°C

Hydraulic Fluid

Mineral Oil

Filtration Requirements

ISO 4406:1999, class 18/16/13 Recommended Filtration Grade:   6..10 ≥ 75

 

Line Drawing
Typical Application
Standard Compliance
Datasheet
Spare Parts List