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LS DMP Series User Manual

LS DMP Series
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Instruction Manual
Series
Digital Motor Protection Relay
(DMP Series)
Thank you for purchasing the LS Inc.DMP Series.
SAFETY PRECAUTIONS
Be sure to read the instruction manual and safety
precautions before use products.
This manual should be given to the person who
actually uses the products and is responsible for
their maintenance.
WARNING : Offending against the message
will result in death or serious injury.
CAUTION : Incorrect handling of the device
may result in minor injury or
physical damage.
!
!
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LS DMP Series Specifications

General IconGeneral
BrandLS
ModelDMP Series
CategoryRelays
LanguageEnglish

Summary

Safety Precautions

General Warning

Offending against the message will result in death or serious injury.

General Caution

Incorrect handling of the device may result in minor injury or physical damage.

Introduction

Installation Cautions

Product Comparison and Checks

Compare product with order, check for missing or cracked parts due to transportation.

Qualified Personnel Requirement

Installation, maintenance, and inspection should be performed by qualified engineers.

Unit Combination Caution

Be careful not to exchange main and display units in combining.

Display Unit Features

Trouble Information and Troubleshooting

Overcurrent Protection

Indicates more than set current within the set time.

Undercurrent Protection

Indicates lower than the undercurrent set ratio within 3 seconds.

Reverse Phase Protection

Detects reverse phase within 0.1 seconds.

Phase Loss Protection

Detects phase loss over 70% of unbalance within 3 seconds.

Phase Unbalance Protection

Detects phase unbalance over 50% within 5 seconds.

Stall Protection

Indicates 180% than setting current within 5 seconds.

Lock Protection

Detects more than lock set current ratio within 0.5 seconds.

Instantaneous Current Protection

Indicates more than instantaneous set current ratio within 0.1 seconds.

Ground Fault Protection

Detects more than set ground current within the set time.

Alert Indicator

Alerts via Bar-LEDs indicating Load Ratio (60~110%).

Installation Dimensions

Ordering Method

Company Information