Chapter 1: Overview; Features - Mitsubishi Electric QE82LG User Manual

1 Overview

Chapter 1: Overview

1.1 Features

This manual explains specifications, handling methods, and programming of
Insulation Monitoring Module QE82LG (hereinafter, abbreviated as QE82LG)
supporting MELSEC-Q series.
(1) This enables to measure leak current for safety actions.
By monitoring leak current (Io), risk for electric shock can be detected.
(2) This enables constant monitoring of insulation for equipment.
By monitoring leak current for resistance (Ior), deterioration of equipment insulation
can be tracked.
(3) This enables 2-level alarm monitoring during monitoring for each measuring
element.
For each leak current (Io) and leak current for resistance (Ior), 2-level alarm
monitoring can be performed without a sequence.
(4) This enables to measure two circuits, using one device.
At the power source with the same-phase wire system, a single device can
measure two circuits.
(5) This enables to measure sensitive.
By changing setting to high sensitivity mode, this enables to measure from
0.01mA.
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QE82LG