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Ampcontrol MEC-1 - User Manual

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MEC-1 – Earth Continuity Protection Relay
User Manual
Part Number: 167261
Revision: 1 – March 2020
Designed and manufactured in Australia by Ampcontrol CSM Pty Ltd
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Summary

Document Conventions and Safety Symbols

Warning and Caution Symbols

Explains warning and caution symbols for safety risks and important information.

Note and Environmental Symbols

Explains note for supplementary info and environmental alerts.

Legal and Preliminary Information

Copyright and Disclaimer

States document ownership and limits liability for information provided.

Getting Started: Read Manual

Recommends reading the manual for familiarization and correct operation.

Safety and Safe Use

General Safety and Handling

Covers safe use, equipment knowledge, manual handling, and preventing modifications.

Installation and Operation Safety

Emphasizes qualified personnel for installation and periodic testing for operation.

Receiving and Storage Procedures

Receiving and Inspection

Check items against packing list, notify of damage/shortages.

Storage and Unpacking

Store indoors, protected. Take care when unpacking.

Environmental Disposal

Dispose of packaging/waste responsibly, use recycling services.

Installation Requirements

General Installation Warnings

Understand manual, application, and functionality for safe installation.

Prohibited Modifications

Modifications to the MEC-1 are prohibited and void warranty.

Mandatory Installation Practices

Adhere to practices like qualified personnel, correct standards, and record keeping.

MEC-1 Relay Overview and Mechanicals

Overview and Application

Earth continuity protection relay for mining applications.

Key Features

Lists features such as compact size, DIN rail mounting, and trip settings.

Mechanical Arrangement

Details the enclosure and DIN rail mounting specifications.

Electrical Connections and Components

Wiring Diagram and Terminals

Covers typical wiring diagram and terminal descriptions.

Power Supply and Optional Inputs

Specifies power supply and details optional reset, stop, start buttons.

Relay Contacts and Fuses

Details relay contact ratings and external fuse recommendations.

Commissioning and Calibration

Commissioning Guidance

Manual provides minimum tests for operation checking.

Resistance Tests

Verifies series and shunt resistance with specific test methods.

Remote Start Function Test

Verifies remote start functionality with relevant tests.

Earth Continuity Protection Function

AS;NZS 2081:2011 Compliance

Explains the standard and its role in earth connection integrity.

Series Resistance Measurement

Measures pilot-earth loop resistance; trips on high resistance.

Shunt Resistance Measurement

Measures pilot-to-earth resistance; trips on low resistance.

Operational Modes and Reset Procedures

Remote Start Mode Operation

How to enable and use remote start mode.

Latching Mode Operation

How latching mode works and prevents re-start until reset.

Manual Reset Procedure

Step-by-step guide to manually reset the unit.

Operation Summary and Faults

DIP and Rotary Switch Settings

Configuration options for remote start, latching, trip level, and time.

LED Indicators

Explains the meaning of Status, Healthy, Short Circuit, Open Circuit, and Timed Out LEDs.

Fault Indication and Start-up

Covers internal fault indication and the MEC-1 start-up sequence.

Service, Maintenance, and Disposal

Equipment Service and Inspections

No internal servicing, but routine external checks are required.

Maintenance and Repairs

No user-serviceable parts; return to Ampcontrol for repair.

Environmental Disposal

Electronic equipment must not be treated as general waste.

Specifications and Equipment List

Technical Specifications

Lists supply voltage, temperature range, contacts, protection, mechanical details.

Equipment List

Lists part numbers for the MEC-1 relay and accessories.

Ampcontrol MEC-1 Specifications

General IconGeneral
BrandAmpcontrol
ModelMEC-1
CategoryRelays
LanguageEnglish

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