Mitsubishi Electric QE82LG User manual

Insulation Monitoring Module
User’
QE82LG
Mitsubishi Programmable Controller
s Manual (Details)

IB63564F
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●SAFETY PRECAUTIONS ●
(Read these precautions before using this product.)
This manual contains important instructions for MELSEC-Q series QE82LG.
Before using this product, please read this manual and the relevant manuals carefully and pay full
attention to safety to handle the product correctly.
The precautions given in this manual are concerned with this product only. For the safety precautions of
the programmable controller system, refer to the user’s manual of the CPU module used.
In this manual, the safety precautions are classified into two levels: "DANGER" and "CAUTION".
Indicates that incorrect handling may cause hazardous conditions,
resulting in death or severe injury.
Indicates that incorrect handling may cause hazardous conditions,
resulting in medium or slight personal injury or physical damage.
Under some circumstances, failure to observe the precautions given under “CAUTION” may lead to
serious consequences．
Observe the precautions of both levels because they are important for personal and system safety.
Keep this manual in an accessible place for future reference whenever needed, and make sure it is
delivered to the end user.
[Precautions for Operating Environment and Conditions]
Caution
•Do not use this product in the places listed below. Failure to follow the instruction may cause
malfunctions or decrease of product-life.
- Places the Ambient temperature exceeds the range 0 - 55ºC.
- Places the Relative humidity exceeds the range 5 - 95% or condensation is observed.
- Altitude exceeds 2000 m.
- Places exposed to rain or water drop.
- Dust, corrosive gas, saline and oil smoke exist.
- Vibration and impact exceed the specifications.
- Installation on excluding
the control board
CAUTION
DANGER

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[Design Precautions]
Danger
•Do not write data into “System Area” in the buffer memory of the intelligent function module.
Also, do not output (turn ON) the “use prohibited” signal in the output signal sent from the
sequencer CPU to the intelligent function module.
Doing so may cause a malfunction to the sequencer system.
Caution
•Do not install the input signal wire together with the main circuit lines or power cables. Keep a
distance of 300 mm or more between them. (Except for the terminal input part) Failure to do so
may result in malfunction due to noise.
•
This module can not be used as an Electric Leakage Relay.
[Installation Precautions]
Caution
•Any person who is involved in the installation and the wiring of this Sequencer should be fully
competent to do the work.
•Use the programmable controller in an environment that meets the general specifications in the
User’s manual of the CPU module used.
Failure to do so may result in electric shock, fire, malfunction, or damage to or deterioration of the
product.
•To mount the module, while pressing the module-mounting lever located in the lower part of the
module, fully insert the module fixing projection(s) into the hole(s) in the base unit and press the
module until it snaps into place.
Incorrect mounting may cause a malfunction, failure or a fall of the module.
When using the Sequencer in an environment of frequent vibrations, fix the module with a screw.
•Tighten the screws within the specified torque range.
Fixing-Module screw (arranged by user): M3 x 12mm
Tightening torque of the fixing-module screws 0.36 - 0.48 N•m
When the screw tightening is loose, it causes a fall, short-circuit, and a malfunction.
Over-tightening can damage the screws and the module, and it may cause a fall, short-circuit, or a
malfunction.
•Shut off the external power supply for the system in all phases before mounting or removing the
module. Failure to do so may result in damage to the product.
•Do not touch directly any conductive parts and electronic parts of the module.
Doing so can cause a malfunction or failure of the module.

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[Wiring Precautions]
Danger
•For installation and wiring works, make sure that the power source is shut off for all outside phases.
If all phases are not turned off, it may cause an electric shock or product damages.
Caution
•FG terminal must be grounded according to the D-type ground (Type 3) dedicated for sequencer.
Failure to do so may result in electric shock or malfunction.
•When using this product, make sure to use it in combination with Mitsubishi’s zero-phase current
transformer (ZCT). Please not to exceed the ratings of this product for input of zero phase
transformer. For further details, please refer to zero phase transformer manual to maintain the
functionality and the accuracy of this product .
Split-type ZCT CZ-22S , CZ-30S , CZ-55S
CZ-77S , CZ-112S
Through-type ZCT ZT15B, ZT30B , ZT40B , ZT60B , ZT80B , ZT100B ,
ZTA600A , ZTA1200A , ZTA2000A
•This module and the zero-phase current transformer are used for less than 600V circuit only. They
are not used with exceeding 600V circuit.
•Do not open the secondary side of the zero-phase current transformer.
•Take care not entering any foreign objects such as chips and wire pieces into the module. It may
cause a fire, failure or a malfunction.
•In order to prevent the module from incoming foreign objects such as wire pieces during wiring
work, a foreign-object preventive label is placed on the module. While a wiring work is performed,
keep the label on the module. Before operating the system, peel off the label for heat release. If the
foreign-object preventive label is not peeled and the system is in use, residual heat inside the
module may reduce the product life.
•The wires to be connected to the module shall be put in a duct or fixed together by clamp. If not, the
loosing and unstable wire or careless stretching results in poor contact of electric wires. That may
cause a breakage of the module or wire or a malfunction.
•Use appropriate size of electric wires. If inappropriate size of electric wire is used, it may cause a
fire due to generated heat. For appropriate size of electric wires, refer to 7.5.2 How to connect
wires.
•In case using stranded wire, take measures so that the filament should not vary by using a bar
terminal or by processing the point twisted. Use the bar terminal appropriated for the size of electric
wires. If using inappropriate bar terminals, a wire breakage or a contact failure may cause a device
malfunction, failure, a burnout or a fire.
•After wiring, confirm whether there is a wiring forgetting or a faulty wiring. They may cause a
device malfunction, a fire, or an electric shock.
•When removing the wires connected to the module, do not pull wires as holding on their electric
wire portions. Push the buttons on the terminal, and then remove the wire.
•If the wires connected to the module are strongly pulled off, it may cause a malfunction or a
breakage to the module or the wire. (Tensile load: 22N or less)
•Ensure the wiring to the module properly, checking the rated voltage and current of the product and
the terminal pin assignment. If the input voltage exceed the rated voltage or the wiring is improper,
it may cause a fire or a breakage.
•Do not exceed the specified voltage when doing an insulation resistance test and a commercial
frequency withstand voltage test.

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[Start-up Precautions]
Caution
•Use the product within the ratings specified in this manual. When using it outside the ratings, it not
only causes a malfunction or failure but also there is a fear of igniting and damaging by a fire.
•Before operating the product, check that active bare wire and so on does not exist around the
product. If any bare wire exists, stop the operation immediately, and take an appropriate action
such as isolation protection.
•Do not disassemble or modify the module. It may cause failure, a malfunction, an injury or a fire.
•Attaching and detaching the module must be performed after the power source is shut off for all
outside phases. If not all phases are shut off, it may cause failure or a malfunction of the module.
•Do not touch the live terminal. It may cause a malfunction.
[Maintenance Precautions]
Caution
•Cleaning and additional tightening of module-fixing screws must be performed after the input power
source is shut off for all outside phases. If not all phases are shut off, it may cause failure or a
malfunction of the module.
•Use a soft dry cloth to clean off dirt of the module surface.
•Do not let a chemical cloth remain on the surface for an extended period nor wipe the surface with
thinner or benzene.
Check for the following items for using this product properly for long time.
<Daily maintenance>
(1) No damage on this product (2) No abnormality with LED indicators (3) No abnormal noise,
smell or heat.
<Periodical maintenance> (Once every 6 months to 1 year)
(4) Confirm there is loosing in installation, wire connection to terminal blocks, and the connection
of the connectors. (Check these items under the power failure condition.)
[Storage Precautions]
Caution
•To store this product, turn off the power and remove wires, and put it in a plastic bag.
For long-time storage, avoid the following places. Failure to follow the instruction may cause a
failure and reduced life of the product.
- Places the Ambient temperature exceeds the range -25 to +75ºC.
- Places the Relative humidity exceeds the range 5 - 95% or condensation is observed.
- Dust, corrosive gas, saline and oil smoke exist, and vibration and frequent physical impact
occur.
- Places exposed to rain or water drop.
[Disposal Precautions]
Caution
•Dispose of the product as an industrial waste.

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Revision history * Manual number is provided at the bottom of the cover page.
Printed date
* Manual number
Revision history
Jan, 2011IB-63564 First edition
Sep, 2011IB-63564-A
Correction
SAFETY PRECAUTIONS, Section 4.2, Section 8.1, Section 8.3
Addition
SAFETY PRECAUTIONS, Section 2.1, Section 3.2, Section 7.4, Section
9.3
Aug. 2012 IB-63564-B Correction
Section 2.3, Section 7.6, Section 9.1
Jul. 2013 IB-63564-C Correction
Section 2.3, Section 7.6, Section 7.7, Section 8.2, Section 9.3
Addition
Section 1.1, Section 3.1, Section 4.2, Section 6.1, Section 6.3
Nov. 2013 IB-63564-D Correction
Section 4.1, Section 4.2.5, Section 6.1, Section 6.2.2, Section 6.2.3,
Section 6.3.1, Section 6.3.2, Section 6.3.4, Section 6.3.5, Section 6.4.1,
Section 7.6.2, Section 7.6.4, Section 8.2, Section 9.1
Addition
Section 6.1, Section 6.4.3, Appendix 3
Jan. 2016 IB63564E Correction
Cover, Back cover
Jul, 2017 IB63564F Correction
Compliance with the EMC and Low Voltage Directives,
Section 2.1, Section 3.2, Section 6.2, Section 6.3, Section 6.4, Section
7.2,
Section 7.5, Section 7.6, Section 8, Section 9.2, Appendix 2, Appendix 3,
Back cover
This manual does not guarantee to protect or does not give a permission to any industrial property and any related rights.
Also, our company shall not be held any responsible for any issues related to industrial properties due to product usage
described in this manual.
2011 MITSUBISHI ELECTRIC CORPORATION

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Table of Content
SAFETY PRECAUTIONS·········································································································· A-1
Revision history······················································································································· A-5
Table of content ······················································································································ A-6
Compliance with the EMC and Low Voltage Directives····································································· A-8
Names, abbreviations, terminology ···························································································· A-9
Product configuration················································································································ A-9
Chapter 1: Overview 1-1
1.1 Features ··························································································································· 1-1
Chapter 2: System Configuration 2-1 - 2-4
2.1 Applicable system··············································································································· 2-1
2.2 Precautions for system configuration······················································································· 2-3
2.3 How to check the function version, serial number, and module version··········································· 2-3
Chapter 3: Specifications 3-1 - 3-2
3.1 General specifications·········································································································· 3-1
3.2 Electrical and mechanical specifications ·················································································· 3-2
Chapter 4: Functions 4-1 - 4-11
4.1 List of functions ·················································································································· 4-1
4.2 Functions in detail ·············································································································· 4-2
Chapter 5: I/O signal to CPU module 5-1 - 5-7
5.1 List of I/O signals················································································································ 5-1
5.2 Details of I/O signals············································································································ 5-2
Chapter 6: Buffer memory 6-1 - 6-13
6.1 Buffer memory assignment··································································································· 6-1
6.2 Configurable sections (Un\G0 to Un\G1100, Un\G2000 to Un\G2100)··········································· 6-4
6.3 Measurable sections (Un\G1100 to Un\G1999, Un\G2100 to Un\G2999) ······································· 6-6
6.4 Common sections (Un\G3000 to Un\G4999)···········································································6-12
Chapter 7: Setting and procedure for operation 7-1 - 7-24
7.1 Precautions for handling ····································································································· 7-1
7.2 Procedure for operation ······································································································ 7-2
7.3 Name and function of each part····························································································· 7-3
7.4 Attaching and removing the module························································································ 7-5
7.5 Connecting wires, wiring······································································································· 7-7
7.6 Setting from GX Works2 ····································································································7-14
7.7 Setting from GX Developer ·································································································7-20

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Chapter 8: Programming 8-1 - 8-8
8.1 Programming procedure ····································································································· 8-1
8.2 System configuration and usage conditions for sample program ·················································· 8-2
8.3 Sample programming ········································································································· 8-4
Chapter 9: Troubleshooting 9-1 - 9-8
9.1 List of error codes ·············································································································· 9-1
9.2 Troubleshooting ················································································································· 9-4
9.3 Q&A································································································································· 9-7
Appendix Appendix 1 - 7
Appendix 1: External dimensions ······················································································Appendix-1
Appendix 2: Optional devices ···························································································Appendix-2
Appendix 3: Addition or change of functions ·······································································Appendix-7
Index Index 1

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Compliance with the EMC and Low Voltage Directives
(1) For programmable controller system
To configure a system meeting the requirements of the EMC and Low Voltage Directives when
incorporating the Mitsubishi programmable controller (EMC and Low Voltage Directives compliant)
into other machinery or equipment, refer to QCPU User's Manual (Hardware Design, Maintenance
and Inspection).
The CE mark, indicating compliance with the EMC and Low Voltage Directives, is printed on the
rating plate of the programmable controller.
(2) For the product
For the compliance of this product with the EMC and Low Voltage Directives, refer to Section 7.5
Wiring.
(3) CE marking conformity combination module
This module conforms to CE marking standard in a condition to make combination use with following
zero-phase current transformer (ZCT) and cable.
Split-type ZCT
CZ-22S , CZ-30S , CZ-55S
CZ-77S , CZ-112S
Through-type ZCT
ZT15B, ZT30B , ZT40B , ZT60B ,
ZT80B , ZT100B ,
ZTA600A , ZTA1200A , ZTA2000A
cable
CE marking cable (twisted pair cable )
Single wire:
AWG24 – AWG18 (φ0.5 - 1.0mm)
Stranded wire:
AWG22 – AWG18 (0.3 – 0.8 mm
2
)
Max. cable length
50m

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Names, abbreviations, terminology
In this manual, the following names, abbreviations, and terminology are used to explain the insulation
monitoring module, unless otherwise specified.
Names, abbreviations,
terminology
Descriptions of names, abbreviations, terminology
Io1
Abbreviation for CH1 leak current.
Ior1
Abbreviation for CH1 leak current for resistance.
Io2
Abbreviation for CH2 leak current.
Ior2
Abbreviation for CH2 leak current for resistance.
CH1 Alarm
Collective term for Io1 1-step alarm, Io1 2-step alarm, Ior1 1-step
alarm, and Ior1 2-step alarm.
CH2 Alarm
Collective term for Io2 1-step alarm, Io2 2-step alarm, Ior2 1-step
alarm, and Ior2 2-step alarm.
CH1 max. value
Collective term for Io1 max. value and its date/time of occurrence, and
Ior1 max. value and its date/time of occurrence.
CH2 max. value
Collective term for Io2 max. value and its date/time of occurrence, and
Ior2 max. value and its date/time of occurrence.
Date/time of occurrence
Collective term for the year of max. value occurrence, month and day
of max. value occurrence, hour and minute of max. value occurrence,
and second and day of the week of max. value occurrence.
CH1 Alarm occurrence count
Collective term for Io1 1-step alarm occurrence count, Io1 2-step
alarm occurrence count, Ior1 1-step alarm occurrence count, and Ior1
2-step alarm occurrence count.
CH2 Alarm occurrence count
Collective term for Io21 1-step alarm occurrence count, Io2 2-step
alarm occurrence count, Ior2 1-step alarm occurrence count, and Ior2
2-step alarm occurrence count.
ZCT
Abbreviation for zero-phase current transformer
Product configuration
The following describes the product configuration.
Model name
Product name
Quantity
QE82LG
Insulation monitoring Module
1