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Mitsubishi Electric QE82LG User Manual

Mitsubishi Electric QE82LG User Manual

Melsec q series, insulation monitoring module
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Mitsubishi Programmable Controller
Insulation Monitoring Module
User'
s Manual (Details)
QE82LG

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Summary of Contents for Mitsubishi Electric QE82LG

  • Page 1 Mitsubishi Programmable Controller Insulation Monitoring Module User’ s Manual (Details) QE82LG...

  • Page 2: Safety Precautions

    ● 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.
  • Page 3 [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.
  • Page 4 [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.
  • Page 5 [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. •...

  • Page 6: Revision History

    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 A - 5...

  • Page 7: Table Of Contents

    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 Features ··························································································································· 1-1 Chapter 2: System Configuration 2-1 - 2-4 2.1 Applicable system ···············································································································...
  • Page 8 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 ·················································································································...

  • Page 9: Compliance With The Emc And Low Voltage Directives

    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).

  • Page 10: Names, Abbreviations, Terminology

    CH2 Alarm occurrence count alarm occurrence count, Ior2 1-step alarm occurrence count, and Ior2 2-step alarm occurrence count. Abbreviation for zero-phase current transformer Product configuration The following describes the product configuration. Model name Product name Quantity QE82LG Insulation monitoring Module A - 9...
  • Page 11 Note A - 10...

  • Page 12: Chapter 1: Overview

    1 Overview QE82LG Chapter 1: Overview This manual explains specifications, handling methods, and programming of Insulation Monitoring Module QE82LG (hereinafter, abbreviated as QE82LG) supporting MELSEC-Q series. 1.1 Features (1) This enables to measure leak current for safety actions. By monitoring leak current (Io), risk for electric shock can be detected.

  • Page 13: Chapter 2: System Configuration 2-1

    (1) Applicable module and the quantity of attachable pieces (a)When mounted with CPU module CPU module to which QE82LG can be attached and the number of attachable pieces are shown below. Depending on the combination of the attached module and the number of attached pieces, lack of power capacity may occur.
  • Page 14 QJ72BR15 (c) The base unit can be mounted QE82LG can be installed to any I/O slot of main base unit and extension base unit. *1 In case of redundant CPU, can be mounted to the extension base unit only. Mounted to the main base unit is not allowed.

  • Page 15: Precautions For System Configuration

    (1) When attaching it to an expansion base without a power module If QE82LG is attached to an expansion base without a power module, refer to the user’s manual of the sequencer CPU to be used in order to select the power module and expansion cable.
  • Page 16 2 System Configuration QE82LG (2) How to check the function version and serial number (a) Checking on the front of the module. The serial number and function version on the rating plate is shown on the front (at the bottom) of the module.

  • Page 17: Chapter 3: Specifications 3-1

    3 Specifications QE82LG Chapter 3: Specifications 3.1 General specifications Item Specifications Phase-wire system single-phase 2-wire / single-phase 3-wire / three-phase 3-wire Ratings Voltage single-phase 110 V , 220 V AC circuit 2-wire, three-phase 3-wire single-phase 110V AC (1 - 2 line, 2 - 3 line) 220 V (1 - 3 line)

  • Page 18: Electrical And Mechanical Specifications

    3 Specifications QE82LG 3.2 Electrical and mechanical specifications Specifications Item Each phase 0.1 VA (at 110 V AC), Each phase 0.2 VA (at 220 V AC) Consumption Voltage circuit 0.17 A Internal current consumption (5 V DC) 0 – 55°C (Average daily temperature 35°C or below) Operating temperature 5 –...

  • Page 19: Chapter 4: Functions 4-1

    (sensor) input. Using this module, you can create a sequence, etc. *1: High sensitivity mode can be used QE82LG whose serial number (upper six digits, shown on the front (at the bottom) of the module) is 150612 or later. 4 - 1...

  • Page 20: Functions In Detail

    4 Functions QE82LG 4.2 Functions in detail 4.2.1 Measuring functions (1) Measured items Measured items and measured ranges are described as follows: Measured items Details Present value (Un \ G1100) CH1 leak current Max. value (Un \ G1101) Date/time of occurrence (Un \ G1102 to Un \ G1105)
  • Page 21 4 Functions QE82LG 4.2.2 Max. values hold function It memorizes the max. value for each measured element, and retains it until the max. value is cleared. (1) Max. value memory 1) It memorizes the max. value for the following measured element.
  • Page 22 4 Functions QE82LG 4.2.3 Alarm monitoring function For monitoring each measured item, you can set max. 2 points of upper limit alarm to perform monitoring. During the alarm monitoring, the module can monitor the input signal to check for the occurrence.
  • Page 23 4 Functions QE82LG (2) Alarm flag (Xn1 to Xn8) and behavior of ALM1 LED and ALM2 LED 1) There are 4 statuses of alarm for each alarm monitoring element. (a) Alarm non-occurrence status The present value is under alarm value or the present value exceeds alarm value but the situation continues for less than alarm delay time.
  • Page 24 4 Functions QE82LG 3) Behaviors of ALM1 LED and ALM2 LED (a) The indication of ALM1 LED changes according to status of CH1 Alarm. Io1 primary alarm flag (Xn1) Io1 secondary alarm flag (Xn2) Ior1 primary alarm flag (Xn3) Ior1 secondary alarm flag (Xn4) (b) The indication of ALM2 LED changes according to status of CH2 Alarm.
  • Page 25 4 Functions QE82LG (3) Behavior of alarms 1) When the alarm reset method is in the “auto reset” setting (Example of Io1 primary alarm monitoring): (a) If the present value Io1 exceeds alarm value and the situation continues for alarm delay time, Io1 primary alarm flag (Xn1) will be turned ON.
  • Page 26 4 Functions QE82LG 3) An example of Io1 primary alarm monitoring is indicated in 1) and 2) above. Other alarm monitoring will be in accordance with the same behavior. For the setting items for the buffer memory that corresponds to the alarm monitoring and the I/O signals, refer to Chapters 5 and 6.
  • Page 27 4 Functions QE82LG 4) How to reset Alarm flag during alarm occurrence (Example of Io1 primary alarm monitoring) (a) If the present value Io1 exceeds alarm value, Io1 primary alarm flag (Xn1) will be turned ON. At the same time, ALM1 LED flashes.
  • Page 28 4 Functions QE82LG 4.2.4 Alarm occurrence count function It memorizes the count of alarm occurrence for each alarm monitoring element, and retains it until the count of alarm occurrence is performed. (1) Memory of Alarm occurrence count 1) It memorizes each alarm occurrence count for the following element.
  • Page 29 4 Functions QE82LG 4.2.5 Test function This function is to output pseudo-fixed value to a buffer memory for debugging sequence program. The value can be output to the buffer memory without input of voltage and current. (1) How to use the test function 1) Using the intelligent function switch settings, you can start the test mode to output the fixed value.

  • Page 30: Chapter 5: I/O Signal To Cpu Module 5-1

    Chapter 5: I/O signal to CPU module 5.1 List of I/O signals I/O signals of QE82LG are listed in Table 5.1-1. The “n” that is used in this and later chapters (for example: Xn0, Yn0, Un\G0, etc.) refers to the number that appears at the beginning of QE82LG.

  • Page 31: Details Of I/O Signals

    5 I/O signal to CPU unit QE82LG 5.2 Details of I/O signals Detailed explanation about I/O signals of QE82LG is provided as follows: 5.2.1 Input signals (1) Module ready (Xn0) (a) When the power of CPU module is turned on or the CPU module reset is performed, it will turn ON as soon as the measurement is ready.
  • Page 32 5 I/O signal to CPU unit QE82LG (6) Io2 primary alarm flag (Xn5) The usage procedure is the same as Io1 primary alarm flag (Xn1). Refer to (2). (7) Io2 secondary alarm flag (Xn6) The usage procedure is the same as Io1 primary alarm flag (Xn1). Refer to (2).
  • Page 33 5 I/O signal to CPU unit QE82LG (11) CH1 max. value clear completion flag (XnA) (a) When CH1 max. value clear request (YnA) is turned ON and the following max. value data are cleared, this signal (XnA) turns ON. - Io1 max. value (Un\G1101) - Io1 date/time of occurrence (Un\G1102 to Un\G1105) - Ior1 max.
  • Page 34 5 I/O signal to CPU unit QE82LG 5.2.2 Output signals (1) CH1 alarm reset request (Yn1) (a) When resetting the following flags for alarm occurrence, this signal (Yn1) turns ON. - Io1 primary alarm flag (Xn1) - Io1 secondary alarm flag (Xn2)
  • Page 35 5 I/O signal to CPU unit QE82LG (b) When the operating condition setting is completed, Operating condition setting completion flag (Xn9) turns ON. (c) When this signal (Yn9) is turned OFF, Operating condition setting completion flag (Xn9) turns OFF. (4) CH1 max. value clear request (YnA) (a) When switching this signal (YnA) from the OFF status to the ON status, the following max.
  • Page 36 5 I/O signal to CPU unit QE82LG (7) CH2 alarm occurrence count clear request (YnD) (a) When switching this signal (YnD) from the OFF status to the ON status, the following max. value data will be cleared. - Io2 primary alarm occurrence count (Un\G2200)

  • Page 37: Chapter 6: Buffer Memory 6-1

    6 Buffer memory QE82LG Chapter 6: Buffer memory 6.1 Buffer memory assignment The following describes buffer memory assignment. Point Do not write data into the prohibited area in the buffer memory from system area and sequence program. If data are written into these areas, it may cause malfunction.

  • Page 38: Measurable Sections (Un\G1100 To Un\G1999, Un\G2100 To Un\G2999)

    6 Buffer memory QE82LG (2) Measurable sections (Un \ G1100 to Un \ G1999, Un \ G2100 to Un \ G2999) Table 6.1-2 Measurable sections (Un\G1100 to Un\G1999, Un\G2100 to Un\G2999) Address Value during the Data Default Backup Item (decimal)

  • Page 39: Common Sections (Un\G3000 To Un\G4999)

    6 Buffer memory QE82LG (3) Common sections (Un \ G3000 to Un \ G4999) Table 6.1-3 Latest error sections (Un\G3000 to Un\G4999) Address Data Default Backup Value during the Item Description (decimal) type value test mode 3000 Latest error code...
  • Page 40 6 Buffer memory QE82LG 6.2 Configurable sections (Un \ G0 to Un \ G1100, Un \ G2000 to Un \ G2100) 6.2.1 Phase wire system (Un \ G0) Phase wire system for target electric circuits is configured. It is common for both CH1 and CH2.
  • Page 41 6 Buffer memory QE82LG 6.2.4 Io1 primary alarm reset method (Un \ G1001) Set alarm reset method of CH1 leak current. For differences in behavior of alarm monitoring for different reset methods, refer to 4.2.4(2). For the buffer memory address of other reset methods, refer to section 6.1(1).
  • Page 42 6 Buffer memory QE82LG 6.3 Measurable sections (Un \ G1100 to Un \ G1999, Un \ G2100 to Un \ G2999) This product divides the measuring data into the Data and Multiplier, and output them to Buffer memory. Actual measuring data is obtained by the following formula.
  • Page 43 6 Buffer memory QE82LG 6.3.2 Io1 max. value (Un¥G1101) Stores the max. value of Io1 present value. For the buffer memory address of CH2, refer to section 6.1(2). (1) Details of stored data (a) Storage format Data are stored as 16-bit unsigned binary in the buffer memory.
  • Page 44 6 Buffer memory QE82LG 6.3.3 Year of time of Io1 max. value (Un \ G1102), Month and day of time of Io1 max. value (Un \ G1103), Hour and minute of time of Io1 max. value (Un \ G1104), Second and day of the week of time of Io1 max. value (Un \ G1105) Stores the occurrence date/time such as year, month, day, hour, minute, second, and day of the week of Io1 max.
  • Page 45 6 Buffer memory QE82LG 6.3.4 Ior1 present value (Un \ G1150) Stores the measured value of CH1 leak current for resistance. For the buffer memory address of CH2, refer to section 6.1(2). (1) Details of stored data (a) Storage format Data are stored as 16-bit unsigned binary in the buffer memory.
  • Page 46 6 Buffer memory QE82LG 6.3.6 Year of time of Ior1 max. value (Un \ G1152), Month and day of time of Ior1 max. value (Un \ G1153), Hour and minute of time of Ior1 max. value (Un \ G1154), Second and day of the week of time of Ior1 max. value (Un \ G1155) Stores the occurrence date/time such as year, month, day, hour, minute, second, and day of the week of Ior1 max.
  • Page 47 6 Buffer memory QE82LG 6.3.7 Io1 primary alarm occurrence count (Un \ G1200) Stores the count of alarms that occurred with Io1 primary alarm (how many times Io1 primary alarm flag (Xn1) has been turned ON). For the buffer memory address of other alarm occurrence count, refer to section 6.1(2).
  • Page 48 6 Buffer memory QE82LG 6.4 Common sections (Un \ G3000 to Un \ G4999) 6.4.1 Latest error code (Un \ G3000) *For the list of error codes, refer to section 9.1. (1) Details of stored data (a) Storage format Data are stored as 16-bit unsigned binary in the buffer memory.
  • Page 49 6 Buffer memory QE82LG 6.4.2 Year of time of error (Un \ G3001), Month and day of time of error (Un \ G3002), Hour and minute of time of error (Un \ G3003), Second and day of the week of time of error (Un \ G3004) Stores the occurrence date/time such as year, month, day, hour, minute, second, and day of the week of the error.

  • Page 50: Chapter 7: Setting And Procedure For Operation 7-1

    7 Setting and procedure for operation QE82LG Chapter 7: Setting and procedure for operation 7.1 Precautions for handling (1) Do not drop the case of this module or give a strong impact. (2) Do not remove the printed circuit board of the module from the case.

  • Page 51: Procedure For Operation

    Attaching the module Attach QE82LG to the specified base unit. (Refer to 7.4.) Wiring Wire QE82LG for external device. (Refer to 7.5.) Setting the intelligent function of module switch Initial setting Perform settings using GX Works2. (Refer to 7.6.) Perform settings using GX Developer. (Refer to 7.7.) Programming, debugging, Create and check the sequence program.

  • Page 52: Name And Function Of Each Part

    7 Setting and procedure for operation QE82LG 7.3 Name and function of each part Names and functions of parts of QE82LG are provided below. (1)LED Operation status of this module is displayed. (Refer to 7-4.) (3) Push button Use this button to...
  • Page 53 7 Setting and procedure for operation QE82LG (1) Names and functions of LEDs The following describes names and functions of LEDs. Table 7.3-1 Names and functions of LEDs Name Color Role ON/OFF condition Displays the Normal operation RUN LED Green...

  • Page 54: Attaching And Removing The Module

    7 Setting and procedure for operation QE82LG 7.4 Attaching and removing the module 7.4.1 How to attach to the base unit Base unit Insert it securely so that the protruding portion for fixing the module does not come off of the module-fixing hole.
  • Page 55 7 Setting and procedure for operation QE82LG 7.4.2 How to detach the base unit Hold the module with both hand, and push the hook for fixing the module located on top of the module until it stops. Push Lift it up...

  • Page 56: Connecting Wires, Wiring

    (6) Keep any object off the cables. (7) Protect cable coating from scratch. 7.5.2 How to connect wires (1) Follow the wiring diagram for external connection to QE82LG. (2) Use appropriate electric wires as described below. Appropriate wires for voltage input circuit (acceptable electric wires) Voltage input terminal Single wire: AWG24 –...
  • Page 57 7 Setting and procedure for operation QE82LG 7.5.3 Connection diagram For external connection to QE82LG, follow the phase method and the connection diagram. Power Load source side side QE82LG Zero-phase current 零相変流器 transformer (ZCT) (ZCT) 負荷1 負荷2 Load 1 Load 2 Figure 7.5.3-1 In the case of Three-phase 3-wire...
  • Page 58 7 Setting and procedure for operation QE82LG 1(1) Power Load source 2(0) side side QE82LG Zero-phase current 零相変流器 transformer (ZCT) (ZCT) 負荷1 負荷2 Load 1 Load 2 Figure 7.5.3-3 In the case of Single-phase 2-wire Power Load source side side...
  • Page 59 7 Setting and procedure for operation QE82LG Transformer Zero-phase current transformer (ZCT) Load side Figure 7.5.3-5 Measuring with the transformer secondary side ground line - ZCT (CZ, ZT series) do not have a secondary output polarity. ZCT(CZ, ZT series) are dedicated for low voltage circuits. It cannot be used for high voltage circuits. Connecting to a high voltage circuit by mistake can cause burning of equipment and fire, which is extremely dangerous.
  • Page 60 7 Setting and procedure for operation QE82LG 7.5.3.1 Connection to leak current circuit (Z+, Z terminal) For wiring the leak current circuit, use Mitsubishi’s zero-phase current transformer (ZCT). *Using other company’s zero-phase current transformer (ZCT) is not allowed. (1) Combination of zero-phase current transformers (ZCT) For ZCT combination, use Mitsubishi’s device as described below.
  • Page 61 7 Setting and procedure for operation QE82LG (2) Zero phase current transformer (CZ, ZT series) is affected by the external magnetic field generated by current when ZCT is installed in the vicinity of the trunk line where large current flows as a result, an error occurs in the measured value.
  • Page 62 (1) When 220 V or higher is loaded to the voltage circuit, use a transformer for gauge. (2) For connection to P1 to P3 terminals on QE82LG, connect the specified voltage according to the phase wire system. Make sure that terminal symbols are correct. If phase wires are connected incorrectly, accurate measurement cannot be performed.

  • Page 63: Setting From Gx Works2

    QE82LG 7.6 Setting from GX Works2 This section explains setting from GX Works2 necessary to use QE82LG. Before performing this setting, install GX Works2 and connect the Management CPU with the PC using a USB cable. For details, refer to the manual of CPU module.
  • Page 64 7 Setting and procedure for operation QE82LG 7.6.2 Setting the intelligent function of the module switch Set the operation mode. (1)Setting procedure Open the “Switch Setting” window. Project window→[intelligent Function Module]→Module name→[Switch Setting] Figure 7.6.2-1 Dialog box to set the intelligent function of the module switch Table 7.6.2-1 Setting the intelligent function of the module switch...
  • Page 65 7 Setting and procedure for operation QE82LG 7.6.3 Parameter Setting Set the parameters. Setting parameters on the screen omits the parameter setting in a program. (1)Setting procedure Open the “Parameter” window. Project window→[intelligent Function Module]→Module name→[Parameter] Figure 7.6.3-1 Dialog box to monitor all buffer memories (a case where the module is attached to the slot 0) (2)Double-click the item to change the setting, and input the setting value.
  • Page 66 7 Setting and procedure for operation QE82LG Item Setting value Reference 1:Single-phase 2-wire Common setting Phase wire system 2:Single-phase 3-wire Section 6.2.1 3:Three-phase 3-wire 0：No monitoring 【Low sensitivity mode】 Primary alarm value 1 to 1000mA：Monitors with the set value Section 6.2.3 【High sensitivity mode】...
  • Page 67 7 Setting and procedure for operation QE82LG 7.6.4 Auto Refresh This function transfers data in the buffer memory to specified devices. Programming of reading/writing data is unnecessary. (1)Setting procedure 1) Start “Auto Refresh” . Project window→[intelligent Function Module]→Module name→[Auto Refresh] 2) Start “Auto Refresh”...
  • Page 68 7 Setting and procedure for operation QE82LG 7.6.5 Debugging program QE81WH provides a test function so that you can debug a program with no input of voltage or current. Pseudo-value can be stored into the buffer memory. For detailed explanation for the test function, refer to 4.2.5.

  • Page 69: Setting From Gx Developer

    QE82LG 7.7 Setting from GX Developer This section explains setting from GX Developer necessary to use QE82LG. Before performing this setting, install the GX Developer and connect the Management CPU with the PC using a USB cable. For details, refer to the manual of CPU module.
  • Page 70 7 Setting and procedure for operation QE82LG 7.7.2 Setting the intelligent function of the module switch (1) In the “I/O assignment setting” of 7.7.1, click the Switch setting button to display the dialog box of “I/O module, intelligent function module switch setting”.
  • Page 71 7 Setting and procedure for operation QE82LG 7.7.3 Initial setting This section explains the setting of the operating condition for phase wire systems that are required for measurement. Once each value is set, these values will be stored in the nonvolatile memory of this module, so that reconfiguration is not needed.
  • Page 72 7 Setting and procedure for operation QE82LG (2) Set the buffer memory 1) In the dialog box to monitor all buffer memories, click the Device test button to display the Device test dialog box. 2) In the Word device / buffer memory, specify the module initial address and buffer address, and click the Set button to apply the setting.
  • Page 73 QE82LG 7.7.4 Debugging program (optional) QE82LG provides a test function so that you can debug a program with no input of voltage or current. Pseudo-value can be stored into the buffer memory. For detailed explanation for the test function, refer to 4.2.5.

  • Page 74: Chapter 8: Programming

    Follow the procedure in Figure 8.1-1 to create a sample program using QE82LG. The default setting allows you to use either GX Works2 (refer to 7.6), GX Developer (refer to 7.7) or the sequence program to make settings;...

  • Page 75: System Configuration And Usage Conditions For Sample Program

    A sample program is shown below based on the following system and the usage condition. (1) System configuration QCPU QY40 (Y10 to Y1F) QE82LG (X/Y0 to X/YF) Figure 8.2-1 Sample system configuration using a sample program (2) Setting conditions for the intelligent function of the module switch Setting is as follows: Table 8.2-1 Setting the intelligent function of the module switch...
  • Page 76 8 Programming QE82LG (4) Before creating a program Before creating a program, attach QE82LG to the base unit, and connect it to external devices. Connected device: ZCT Input (+Z, Z, CH1, CH2), voltage input (P1, P2, P3) 側 側 源...

  • Page 77: Sample Programming

    8 Programming QE82LG 8.3 Sample programming (1) List of devices Table 8.3-1 List of devices Device Function Device that stores Io1 present value Device that stores Io1 max. value Device that stores year of time of Io1 max. value Device that stores month and day of time of Io1 max. value Device that stores hour and minute of time of Io1 max.
  • Page 78 8 Programming QE82LG (2) List of buffer memories to be used Table 8.3-2 List of buffer memories to be used Setting Device Description Remarks value U0 \ G0 Phase wire system Three-phase 3-wire U0 \ G1000 Io1 primary alarm value...
  • Page 79 8 Programming QE82LG (3) Sample program 1. Initial setting program for QE82LG Basic operating condition Phase Request of setting Module operating wire READY condition system setting Io1 primary alarm value Io1 primary alarm reset method Io1 primary alarm CH1 leak current...
  • Page 80 8 Programming QE82LG 2. Io1 measured data acquisition program Io1 present value Request of Module operating READY condition setting Io1 max. value Year of time of Io1 max. value Acquire the measured Month and day of value of CH1 leak time of Io1 max.
  • Page 81 8 Programming QE82LG 3. Alarm monitoring program When primary alarm occurs, output ON to Y10. Io1 primary Module alarm flag ready When Io1 secondary alarm Io1 secondary occurs, output ON to Y11. alarm flag When Ior1 primary alarm Ior1 primary occurs, output ON to Y12.

  • Page 82: Chapter 9: Troubleshooting 9-1

    9 Troubleshooting QE82LG Chapter 9: Troubleshooting 9.1 List of error codes When the data are written to the CPU module from this module or when a reading error occurs, error codes will be stored into the following buffer memory. Table 9.1-1 Latest error code, storage destination upon error occurrence...

  • Page 83: Troubleshooting

    9 Troubleshooting QE82LG Table 9.1-2 List of error codes Error code Error Descriptions Action Reference (HEX) level Io1 secondary alarm delay time Check the setting value, and Section value (Un \ G1005) is set out of 1007h set it within 0 to 300.
  • Page 84 9 Troubleshooting QE82LG Table 9.1-2 List of error codes Error code Error Descriptions Action Reference (HEX) level Check the setting value, and set it within following values. Ior2 primary alarm value Low sensitivity mode: Section 1014h (Un \ G2050) is set out of range.
  • Page 85 9 Troubleshooting QE82LG 9.2 Troubleshooting 9.2.1 When “RUN” LED is turned off Table 9.2.1-1 When “RUN” LED is turned off Check item Action Reference Check that supply voltage of the power source is Is power source is supplied? Section 3.1 within the rating.
  • Page 86 9 Troubleshooting QE82LG 9.2.2 When “ERR” LED is turned on or flashing (1) If it is ON Table 9.2.2-1 When “ERR” LED is turned on Check item Action Reference Check the latest error code (Un\G3000), and take a corrective action as described in section 9.1.
  • Page 87 9 Troubleshooting QE82LG 9.2.3 If the leak current value that is measured using this module does not match with the one measured with other gauge Table 9.2.3-1 If the leak current value that is measured using this module does not match with...

  • Page 88: Q&A

    [1] Check for wiring errors (connections of voltage circuits, in particular). [2] Check for the short-circuit on the secondary side of ZCT. [3] ZCT connectable to the module is the dedicated ZCT manufactured by Mitsubishi Electric only. Check that the proper ZCT is connected.
  • Page 89 9 Troubleshooting QE82LG Is measurement of leak current possible without applying a voltage? Measurement of leak current is impossible without applying a voltage. Be sure to connect a voltage. What kind of time is “response time”? “Response time” is a period of time between a point of sudden change of voltage or current input and a point that an output (computation result) follows up to within ±10% of input.

  • Page 90: Appendix 1: External Dimensions

    Appendix QE82LG Appendix Appendix 1: External dimensions MFQ-LG2 Unit: mm Appendix - 1...

  • Page 91: Appendix 2: Optional Devices

    （100kA） (Peak value) Ⅲ Category of measuring Pollution degree Regulatory Compliance EN61010-2-032 Combined equipment Using with fit QE82LG Mass 0.5kg 0.6kg 1.8kg 2.8kg 6.0kg (b) Hole diameter of split-type zero-phase current transformer (ZCT) and Maximum wire radius penetrable and allowable current ）...
  • Page 92 Appendix QE82LG (c) External dimensions (CZ-22S, CZ-30S, CZ-55S, CZ-77S) (CZ-112S) Hole for 4-M6 bolt Hole for 2-M5 bolt CZ-55S Combination Tester terminal screw Unit[mm] Dimension table Short-circuit plate CZ-22S CZ-30S CZ-55S CZ-77S CZ-112S Ａ φ22 φ30 φ55 φ77 φ112 Ｂ...
  • Page 93 Appendix QE82LG (2) Through-type zero-phase current transformer (a) Specification Item Specifications Model ZT15B ZT30B ZT40B ZT60B ZT80B ZT100B φ15 φ30 φ40 φ60 φ80 φ100 Hole diameter(mm) Maximum operating AC 600V voltage Rated frequency 50/60Hz Rated current 50kA （100kA） in short time Mass 0.2kg...
  • Page 94 Appendix QE82LG (c) External dimensions Dimension table for ZT15B, 30B, 40B ZT15B, 30B, 40B models models ZT60B, 80B, 100B models Hole for attachment (Fixing screw M6x20) Hole for M3.5 terminal screw attachment M3.5 terminal screw (Fixing screw M5x0.8x20) Dimension table for ZT60B, 80B, 100B...
  • Page 95 Appendix QE82LG Zero-phase current transformer with primary conductor (a)Specification Item Specification Model ZTA600A ZTA1200A ZTA2000A Allowable current 600A 1200A 2000A Number of poles AC 600V Maximum operating voltage Rated current 100kA (peak value) in short time Mass 6.5kg 11kg 27kg ◆...
  • Page 96 Appendix QE82LG Appendix 3: Addition or change of functions The following table lists functions added or changed to the QE82LG and GX Works2, serial number of compatible QE82LG, and software version of compatible GX Works2. serial number with Software version with...
  • Page 97 Index 【A】 【L】 Alarm delay time ····································· 4-4 Latest error code ··································· 6-12 Alarm flag (Xn1 - Xn8) ························ 4-5, 5-2 【M】 Alarm monitoring function ·························· 4-4 Alarm non-occurrence status ····················· 4-5 Max. value ······································· 4-2, 6-7 Alarm occurrence count clear completion Max.
  • Page 98 Insulation Monitoring Module (1) For use of our general-purpose sequencer MELSEC-Q series and QE82LG, they shall be used for a purpose which shall not lead to a material accident even when a failure or malfunction of the sequencer occurs, and a backup or fail-safe function shall be implemented systematically at external of the device in the event of a failure or malfunction.
  • Page 99 Vte. Agua Santa 4211 Casilla 30-D (P.O. Box) Vina del Mar, Chile +56-32-2-320-600 Mitsubishi Electric Automation (China) Ltd. Mitsubishi Electric Automation Building, No.1386 Hongqiao Road, Shanghai,200336 +86-21-2322-3030 Mitsubishi Electric Automation (China) Ltd. 9/F, Office Tower1 Henderson Centre 18 Jianguomennei Dajie DongCheng district BeiJing 100005...

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