K7GE-MG1

## **Insulation Resistance Monitoring Device K7GE-MG** 

## **Reliable, Safe and Accurate Automatic Insulation Resistance Measurements** 

- Measures insulation resistance automatically when a trigger signal is input 

- Identifies the trend in insulation deterioration from the measurement data collected via communications 

- Conducts measurements safely with a Megger voltage of 50 VDC 

- Able to measure up to eight points simultaneously 

- Constantly monitors the voltage applied to the device targeted for measurement, and automatically stops measurement if the target device power is turned ON after measurement has started 

Refer to your OMRON website for the most recent information on applicable safety standards. 

## **Overview** 

The K7GE-MG is a device that automatically measures the insulation resistance of a load and supports trend monitoring. 

Periodic inspections by manpower may cause a unexpected machine stoppage due to a decrease in insulation resistance of equipment before the next inspection. The K7GE-MG provides automatic monitoring of the insulation resistance of each load and allows planned maintenance. 

The K7GE-MG measures the insulation resistance by the same detection principle (Megger method) as a Megohmmeter. 

To measure the insulation resistance using the K7GE-MG, it is necessary to combine one Main Unit with at least one Probe Unit. 

Main Unit Probe Unit (K7GE-MGM) (K7GE-MG1) 

The functions of the Main Unit and Probe Unit are shown in the figure on the right. The Main Unit correspond to a Megohmmeter, and the Probe Unit correspond to a measurement probe with internal contacts. The Main Unit turns ON these contacts in sequence and measure multiple loads individually. Up to eight Probe Units can be connected to one Main Unit. 

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Main Unit Probe Unit Probe Unit Probe Unit<br>**----- End of picture text -----**<br>


**1** 

**K7GE-MG System Configuration** 

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## **Ordering Information** 

|**Unit**|**Power supply voltage**|**Model**|
|---|---|---|
|Main Unit|100 to 240 VAC|**K7GE-MGMA**|
||24 VAC/VDC|**K7GE-MGMD**|
|Probe Unit|---|**K7GE-MG1**|



## **Accessories (Order Separately)** 

|**DIN Tracks**|**Model**|
|---|---|
|——|**PFP-100N**<br>**PFP-50N**|
|||
|**End Plate**|**Model**|
||**PFP-M**|



End Plate End Plate End Plates must be mounted at both ends to prevent contact failure between the Units due to vibration and shock. 

**2** ~~a~~ omron 

**K7GE-MG** 

## **Ratings and Specifications** 

|**Item**|**Item**|**Specifications**|
|---|---|---|
|Power supply voltage and frequency||K7GE-MGMA: 100 to 240 VAC, 50/60 Hz<br>K7GE-MGMD: 24 VAC, 50/60 Hz, 24 VDC|
|Operatingvoltage range||85% to 110% of the rated voltage|
|Operatingfrequency range||45 to 65 Hz|
|Power consumption||Maximum Unit configuration: one Main Unit and eight Probe Units<br>12.9 VA max. (100 to 240 VAC)/7.8 VA max. (24 VAC)/4.7 W max. (24 VDC)<br>Minimum Unit configuration: one Main Unit and one Probe Unit<br>8.4 VA max. (100 to 240 VAC)/4.6 VA max. (24 VAC)/2.5 W max. (24 VDC)|
|Ambient operatingtemperature||-10 to 55°C (with no condensation or icing)|
|Ambient operatinghumidity||25% to 85% (with no condensation)|
|Storage temperature||-20 to 65°C|
|Altitude||2,000 m max.|
|Recommended fuse||T2A, time delay, high-breaking capacity (for Main Unit operating power supply)<br>Trippingcurrent: 7 A max., fast-blow (for Probe Unit voltage input)|
|Insulation resistance||20 MΩmin.<br>Between all external terminals and the case, between all power supply terminals and all other<br>terminals, between PE terminal, and trigger input terminal, all communications terminals and all<br>transistor output terminals<br>1,000 MΩmin.<br>Between Probe Unit voltage monitoringterminal and PE terminal|
|Dielectric strength||2,000 VAC for 1 minute<br>Between all external terminals and the case, between all power supply terminals and all other<br>terminals, between PE terminal, and trigger input terminal, all communications terminals and all<br>transistor output terminals<br>1,000 VDC for 1 minute<br>Between Probe Unit voltage monitoringterminal and PE terminal|
|Vibration resistance||Frequency: 10 to 55 Hz, 0.35-mm single amplitude, acceleration 50 m/s2, 10 sweeps of 5 min each in<br>X, Y, and Z directions|
|Shock resistance||100 m/s2, 3 times each in X, Y, and Z axes, 6 directions|
|Degree of protection||IP20|
|Terminal block type||Push-In Plus|
|Exterior color||Black (Munsell N 1.5)|
|Mounting||DIN Track mounting|
|Weight||Main Unit: Approx. 156 g<br>Probe Unit: Approx. 63g|
|Installation environment||Operation power supply: EN/IEC 61010-1 Over-voltage category II Pollution degree 2<br>Measurement circuit: EN/IEC 61010-2-030 Pollution degree 2<br>For details about the measurement category, refer to_Conformance to Safety Standards_on page 14.|
|Electromagnetic environment||EN/IEC 61326-1 Industrial electromagnetic environment|
|Safety standards||UL 61010-1<br>Korean Radio Waves Act (KN 61000-6-2 and KN 11)<br>RCM|
|Wiring<br>material|Wire type|Solid wire or stranded wire|
||Wiringmaterial|Copper|
||Recommended wire|0.25 to 1.5 mm2<br>AWG 24 to AWG 16|
||Stripping length<br>Without ferrules|8 mm|



**3** 

**K7GE-MG** 

## **Measurement Specifications** 

|**Item**|**Specifications**|
|---|---|
|Measurement range|0.1 to 99.9 MΩ(0.0 MΩfor less than 0.1 MΩ)|
|Measuringaccuracy|±5% rdg. ±1 digit (at ambient temperature -10 to 55°C and ambient humidity 25% to 65%)|
|Megger voltage|50 VDC|
|Measurement operation|Perform one measurement operation for each trigger. One-shot trigger.|
|Average count|Disabled (1 time)/Enabled (8 times)|
|Measurement target|Single-phase/3-phase AC induction motors<br>An inverter-driven motor requires a contactor on the secondary coil of the inverter.<br>Similarly, a servo motor requires a contactor on the secondary coil of the Servo Drive.<br>A motor with a star delta starter requires a delta connection or a star connection for measurement.<br>Also able to measure DC motors.|



## **Input Specifications of Trigger Input Terminals** 

|**Item**|**Specifications**|
|---|---|
|Input type|No-voltage contact and open collector are possible.|
|Residual voltage at short<br>circuit|1.5 V max.|
|Open leakage current|0.1 mA max.|
|ON current at short circuit|Approx. 7 mA|
|Minimum detection time|Received as a valid continuous input for at least 50 ms for both ON and OFF.|



## **Output Specifications of Transistor Output Terminals** 

|**Item**|**Specifications**|
|---|---|
|Contact form|NPN open collector|
|Rated voltage|24 VDC (maximum voltage: 26.4 VDC)|
|Maximum current|50 mA|
|Leakage current when power<br>turningOFF|0.1 mA max.|
|Residual voltage|1.5 V max.|



## **Input Specifications of Voltage Input Terminals** 

|**Item**|**Specifications**|
|---|---|
|System voltage<br>(All are specified as line<br>voltage)|AC waveform:<br><Single-phase, 2-wire, N-phase ground><br>Sine waveform: 100 to 600 VAC, -15% to 10%, 50/60±5 Hz<br>Thyristor waveform: 100 to 600 VAC, -15% to 10%, 50/60±5 Hz (0° to 150° dia.)<br>Inverter waveform: 100 to 600 VAC, -15% to 10%, 20 to 85 Hz<br><3-phase, 3-wire, S-phase ground><br>Sine waveform: 100 to 480 VAC, -15% to 10%, 50/60±5 Hz<br>Thyristor waveform: 100 to 480 VAC, -15% to 10%, 50/60±5 Hz (0° to 150° dia.)<br>Inverter waveform: 100 to 480 VAC, -15% to 10%, 20 to 85 Hz<br><3-phase, 4-wire, N-phase ground><br>Sine waveform: 100 to 600 VAC, -15% to 10%, 50/60±5 Hz<br>Thyristor waveform: 100 to 600 VAC, -15% to 10%, 50/60±5 Hz (0° to 150° dia.)<br>Inverter waveform: 100 to 600 VAC, -15% to 10%, 20 to 85 Hz<br>DC waveform: 24 to 480 VDC, -15% to 10%|



**4** 

**K7GE-MG** 

## **Communications Specifications** 

|**Item**|**Specifications**|
|---|---|
|Physical layer|RS-485|
|Transmission path connection<br>method|RS-485: Multidrop|
|Communications method|RS-485 (2-wire, half duplex)|
|Synchronization method|Asynchronous|
|Connection configurations|Master and Slave configurations are 1:1 or 1:N connections.|
|Maximum number of Units|32 (includingone host system)|
|Cable length|Total 500 m max. (twisted-pair cable)|
|Baud rate|9.6, 19.2, 38.4 or 57.6 kbps|
|Data length|7/8 bits|
|Stop bits|1/2 bits|
|Error detection|Vertical parity (none/even/odd)<br>BCC (with CompoWay/F selected), CRC-16 (with Modbus RTU selected)|
|Flow control|None|
|Retry function|None|
|Buffer|97 bytes|
|Send wait time|0 to 99 ms|
|Protocol|CompoWay/F and Modbus RTU|



**5** 

**K7GE-MG Nomenclature** 

## **Front Section** 

## **Main Unit K7GE-MGM** 

## **Probe Unit K7GE-MG1** 

|(H)<br>(I)<br>(J)|(H)<br>(I)<br>(J)||||
|---|---|---|---|---|
|**Symbol**|**Name**||**Op**|**eration**|
|(A)|Alarm output indicator||Displays the alarm judgment results of automatic measurement in three colors.<br>Green: Normal, Yellow: Warning (Alarm 1 occurrence), Red: Critical (Alarm 2 occurrence)<br>If the status is different across multiple channels, the display color is decided in the priority order<br>of red (critical) >yellow (warning) >green (normal).||
|(B)|Measurement step indicator||The automatic measurement operation consists of several steps. This indicator shows the<br>progress of the step from the start to the end of the measurement.||
|(C)|Main display||The following contents are displayed in the operating status of the Main Unit.<br>Measuring operation:<br>The remaining seconds until the measurement completes are counted down<br>After measurement completed:<br>The insulation resistance measurement value, or characters indicating measurement<br>failure<br>Setting level: The setting parameter name, or setting value<br>Error occurs: The characters indicatingthe error status||
|(D)|Protect indicator||Indicates that the protect function of the settingparameter is set.||
|(E)|Operation keys||Level Key (<br>):<br>Selects the setting level.<br>Mode Key (<br>):<br>Selects the setting parameter of the Initial Setting Level and<br>Communications Setting Level.<br>Displays the measurement value of each channel at the Operation Level.<br>Also used to select between enabling/disabling of measurement value<br>display automatic scroll.<br>Shift Key (<br>):<br>Sets the parameter value to a changeable state. Used for digit shift in the<br>changeable state.<br>Up Key (<br>):<br>Increments the value when the parameter is in a changeable state.||
|(F)|Manual Measurement Key||Selects to start or end manual measurement. Manual measurement is used to check the<br>operation when the system is started up. Automatic measurement requires a trigger signal to start<br>measurement, but manual measurement does not require a trigger signal. You can use manual<br>measurement in the same wayas a Megohmmeter.||
|(G)|Reset Key||Selects to return to the power reset status. Even if the measuring operation is in progress, priority<br>is given to the Reset Key, and measurement stops to return to the power reset status. The Reset<br>Keyis enabled onlyin the Operation Level.||
|(H)|Unit Number SettingSwitch||Sets the unit number duringcommunications.||
|(I)|Status display||MANU: Indicates the manual measurement state.<br>ERR:<br>Indicates that a system error occurred.<br>AGE:<br>Indicates that it is time to replace the Main Unit (guideline).||
|(J)|LVL/CH display||Displays the level, or the value of the channel number.<br>LVL:<br>Indicates that the value displayed in the LVL/CH display is the "Level".<br>CH:<br>Indicates that the value displayed in the LVL/CH displayis the "Channel".||
|(K)|PWR indicator (green)||Indicates that the Probe Unit power is ON.||
|(L)|MEAS indicator (green)||Indicates that measurement is in progress for the load connected to the Probe Unit.||
|(M)|ALM indicator (red)||Indicates that an alarm occurred in the load connected to the Probe Unit.||
|(N)|Channel Number SettingSwitch||Sets a unique channel number for each Unit when multiple Probe Units are added.||



**6** 

**K7GE-MG** 

## **Terminal Section** 

## **Main Unit K7GE-MGM** 

||||||||D||||
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|||Approx.<br>7 mA|Internal 5 V<br>680�<br>Internal<br>ground<br>||||||||
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|||||||||13<br>15|||
|||||||||17<br>19|||
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|**Symbol**|**Terminal**<br>**Number**||**Name**|||**Operation**|||||
|(A)|1 and 2||Operation power supply||Connect the ope|ration power supply to the Main Unit.|||||
|(B)|3 and 4||Trigger input||Input terminals of the external contact from where a trigger signal is applied.<br>No. 3: Collector of the NPN transistor, No. 4: Emitter of the NPN transistor||||||
|(C)|5 and 6||RS-485||Connect the RS-485 communications line.<br>No. 5: +, No. 6: -||||||
|(D)|7||PE||A protective earthingterminal.||||||
|(E)|NC||NC||Do not connect anythingto this terminal.||||||
|(F)|13 and 14||ALM 1 output||Compares the measurement value and alarm value 1, and outputs an alarm.<br>No. 13: Collector of the NPN transistor, No. 14: Emitter of the NPN transistor||||||
|(G)|15 and 16||ALM 2 output||Compares the measurement value and alarm value 2, and outputs an alarm.<br>No. 15: Collector of the NPN transistor, No. 16: Emitter of the NPN transistor||||||
|(H)|17 and 18||Status output during<br>measurement||Provides notification that measurement is in progress. The output is normally open (OFF).<br>You can use this output to design an interlock circuit to prevent accidental restart of the load<br>during measurement operation.<br>No. 17: Collector of the NPN transistor, No. 18: Emitter of the NPN transistor||||||
|(I)|19 and 20||Self-diagnosis error<br>output||Provides notification about system error in the Main Unit.<br>The output is normally closed (ON).<br>No. 19: Collector of the NPN transistor, No. 20: Emitter of the NPN transistor||||||



**7** 

**K7GE-MG** 

## **Terminal Section** 

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Probe Unit K7GE-MG1<br>**----- End of picture text -----**<br>


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Voltage input (A) (B)<br>2 M� Typ.<br>3<br>2 M� Typ.<br>1<br>M<br>**----- End of picture text -----**<br>


|**Symbol**|**Terminal**<br>**Number**|**Name**|**Operation**|
|---|---|---|---|
|(A)|1 and 3|Voltage input|Connect the load terminals.<br>No. 1: Connect the R-phase in a 3-phase system, and the L-phase in a single-phase system<br>No. 3: Connect the S-phase in a 3-phase system, and the N-phase in a single-phase system<br>Use the No. 1 terminal to discharge the electric charge and applythe Megger voltage.|
|(B)|NC|NC|Do not connect anythingto this terminal.|



**8** 

**K7GE-MG** 

## **Connection Diagram** 

## **When the Load Is a Single-Phase/3-Phase Induction Motor (Direct Connection to Commercial Power Supply)** 

Install a contactor between the power line and the motor. 

Do not connect any other device such as a transformer or a filter between the contactor and the motor. Doing so may cause incorrect measurement. 

Connect the voltage input of the Probe Unit of the K7GE-MG to the secondary output terminal (motor side) of the contactor. 

Make sure that it is not connected to the primary side (power supply side). It cannot be measured correctly and may cause a hazardous condition. 

The figure shows a simplified view of the wiring for status output during measurement, and ALM 1 and ALM 2 outputs. Use an appropriate relay for relaying in consideration of the switching capacity of the output transistor. The specifications of the output transistor for the K7GE-MG are 24 VDC (+10%), 50 mA max. 

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R S T Contactor<br>MC-a<br>Trigger<br>input<br>K7GE-MG<br>Operation  3 4 1 3<br>power<br>supply Probe Unit<br>2<br>1 Main Unit<br>PE<br>7<br>17 18 13 14 15 16<br>Status output<br>during measurement ALM 1 ALM 2<br>**----- End of picture text -----**<br>


## **When the Load Is an Inverter-Driven Motor** 

Install a contactor between the inverter output and the motor. If a noise filter is to be inserted at the output side of the inverter, insert it between the inverter output and the primary output terminal of the contactor. 

Do not connect any other device such as a transformer or a filter between the contactor and the motor. Doing so may cause incorrect measurement. 

Connect the voltage input of the Probe Unit of the K7GE-MG to the secondary output terminal (motor side) of the contactor. 

Make sure that it is not connected to the primary side (power supply side). It cannot be measured correctly and may cause a hazardous condition. 

The figure shows a simplified view of the wiring for status output during measurement, and ALM 1 and ALM 2 outputs. Use an appropriate relay for relaying in consideration of the switching capacity of the output transistor. The specifications of the output transistor for the K7GE-MG are 24 VDC (+10%), 50 mA max. 

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R S T Inverter<br>PE<br>U V W<br>Output<br>noise filter<br>Contactor<br>MC-a<br>Trigger<br>input<br>K7GE-MG<br>Operation  3 4 1 3<br>power<br>supply Probe Unit<br>2<br>1 Main Unit<br>PE<br>7<br>17 18 13 14 15 16<br>Status output<br>during measurement ALM 1 ALM 2<br>**----- End of picture text -----**<br>


**9** 

**K7GE-MG** 

## **When the Load Is a Servo Motor** 

Install a contactor between the Servo Drive output and the motor. 

The contactor is required only in the power line. Relays the motor power cables other than the power line to the terminal blocks and connect it to the Servo Drive directly. 

Do not connect any other device such as a transformer or a filter between the contactor and the motor. Doing so may cause incorrect measurement. 

Connect the voltage input of the Probe Unit of the K7GE-MG to the secondary output terminal (motor side) of the contactor. 

Make sure that it is not connected to the primary side (power supply side). It cannot be measured correctly and may cause a hazardous condition. 

Turn the contactor ON and OFF when the Servo Drive power is OFF. 

If the contactor is turned OFF while the Servo Drive is turned ON, the rotating shaft of the motor will be in a free. If the contactor is turned on after that, the motor may perform unintended operation and can be dangerous. 

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Servo Drive<br>power supply OFF<br>Correct<br>R S T Servo Drive<br>Contactor OFF<br>PE<br>Brake Servo Drive<br>power supply ON<br>FG U V W Incorrect<br>Contactor OFF<br>Contactor<br>Relay<br>MC-a<br>Trigger<br>input<br>K7GE-MG<br>Operation  3 4 1 3<br>FG U V W power<br>supply Probe Unit<br>Brake cable 2<br>Motor power 1 Main Unit<br>cable<br>PE<br>7<br>17 18 13 14 15 16<br>ALM 1 ALM 2<br>Status output<br>Servo during<br>motor measurement<br>**----- End of picture text -----**<br>


The figure shows a simplified view of the wiring for status output during measurement, and ALM 1 and ALM 2 outputs. Use an appropriate relay for relaying in consideration of the switching capacity of the output transistor. The specifications of the output transistor for the K7GE-MG are 24 VDC (+10%), 50 mA max. 

**10** 

**K7GE-MG** 

**(Unit: mm)** 

## **Dimensions** 

## **Main Unit K7GE-MGM** 

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## **Probe Unit K7GE-MG1** 

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## **Optional Products for DIN Track Mounting** 

**11** 

**K7GE-MG** 

## **Setting Parameter Flow** 

|||||||||||
|---|---|---|---|---|---|---|---|---|---|
|reset<br>Setting Change<br>Protection<br>ct Level<br>LVLp<br>Operation Level<br>+<br>At least<br>3 seconds<br>+<br>At least<br>1 second<br>wtpt<br>Note: Power ON reset is a reset process<br>that runs when the power turns ON.||||Initial Setting<br>Level<br>LVL 0<br>Maximum Number<br>At least<br> <br>At least<br>1 second||||Communications<br>Setting Level<br>Baud Rate<br>psel<br>bps<br>LVL1<br>Data Length<br>Stop Bits<br>Parity<br>Send Wait Time<br>len<br>sbit<br>prty<br>sdwt<br>Protocol<br>Less than<br>1 second<br> <br>At least<br>1 second<br>Less than<br>1 second||
||||||||Maximum Number|||
|||<br>3 seconds||3 seconds|mxch||<br>of Channels|1 second<br>||
|||||||||||
|||||||||||
|||||||||||
|||||||alm1<br>alm2<br>nonc<br>tr-r<br>mtwt<br>stwt<br>avg<br>v!0<br>age|Alarm Value 1|Less than<br>1 second||
||||||||Alarm Value 2|||
||||||||Alarm Polarity|||
||||||||Trigger Signal<br>Reverse|||
||||||||Motor Stop<br>Waiting Time|||
||||||||Time to Wait<br>to Stabilize<br>Average<br>Processing<br>Use Running Time<br>Software Version|||



|**Level**|**Parameter name**|**Characters**|**Setting range**|**Description**|**Description**|**Description**|**Description**|
|---|---|---|---|---|---|---|---|
|Protect|Setting Change<br>Protection|wtpt|**OFF**<br>/ON|Use key operations to change the setting value,**Enabled**<br>/Disabled||||
|Initial Setting|Maximum Number of<br>Channels|mxch|**1**<br>to 8|Total number of channels, default value:**1**||||
||Alarm Value 1|alm1|0.0 to 99.9 MΩ|Alarm threshold value (warning), default value:**20.0**||||
||Alarm Value 2|alm2|0.0 to 99.9 MΩ|Alarm threshold value (critical), default value:**1.0**||||
||Alarm Polarity|nonc|n-o/**n-c**|Alarm output polarity, Normally open||/**Normally close**||
||Trigger Signal Reverse|tr-r|**OFF**<br>/ON|**Start measurement when trigger c**<br>Start measurement when trigger con||**ontact input is OFF**<br>/<br>tact input is ON||
||Motor Stop Waiting Time|mtwt|0 to 299 s|Time from trigger input to load stopping, default value:**10**||||
||Time to Wait to Stabilize|stwt|0 to 99 s|Time for the measurement value to stabilize after the Megger voltage is<br>applied, default value:**60**||||
||Average Processing|avg|**OFF**<br>/ON|Average processing of measurement values,**None**<br>/Yes||||
||Use Running Time|age|**OFF**<br>/ON|Running time estimation function,**Not used**<br>/Used||||
||Software Version|v!0|-|Displays the software version of the K7GE-MG.<br>* The version number depends on the current software version.||||
|Communications<br>Setting|Protocol|psel|**CWF**<br>/MOD|Protocol selection,**CompoWay/F**<br>/ Modbus RTU||||
||Baud Rate|bps|**9.6**<br>/19.2/38.4/57.6 kbps|Baud rate, default v|alue:**9.6**|||
||Data Length|len|**7**<br>/8 bits|Data length, default value:**7**||||
||Stop Bits|sbit|1/**2**<br>bits|Stop bits, default value:**2**||||
||Parity|prty|NONE/**EVEN**<br>/ODD|Parity, default value:**EVEN**||||
||Send Wait Time|sdwt|0 to 99 ms|Response wait time from the host, default value:**20**||||



**Note: Bold text values** indicate default settings. 

**12** 

**K7GE-MG** 

## **K7GE-MG Logging Tool** 

The K7GE-MG Logging Tool (this tool) makes it easy to perform remote monitoring. 

The main specifications of the tool are as follows: 

- Data for up to five sets of the monitoring device can be logged. 

- A maximum of eight Probe Units can be included in one set. 

- The measurement values and alarm status data for each set can be logged. Up to 1,000 values of data can be logged. 

- The setting parameters can be read and written. 

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PC<br>USB<br>Communications converter S|<br>RS-485     USB<br>} o<br>aD<br>ooSSEERS| oo oo Py]OE=<br>ee > ee | zz,<br>PSSSay Pye ©<br>#] oo |e<br>ARIE ES ==<br>Probe Unit<br>5 sets max.<br>8 Units max.<br>LS<br>1 set<br>**----- End of picture text -----**<br>


The system requirements are as follows. 

|**Supported OS**|Windows 10 64-bit edition, English or Japanese|
|---|---|
|**PC specifications**|1 GHz or faster CPU, 1 GB or more of RAM, and 16 GB or more of reserved disk area|
|**Excel**|Excel 2019 32-bit or 64-bit edition, English or Japanese<br>*For Excel 2013/2016 32-bit edition, OMRON performed a connection test only on the Japanese version in<br>combination with the Japanese version of Windows 10.|
|**RS485-USB**<br>**communications converter**|Use a commercially available product.<br>*OMRON performed an evaluation test on the SI-35USB-2 manufactured by LINE EYE.<br>(The driver version is V2.12.18.)|



Refer to Help in this tool for details on using this tool. 

You can download the latest version of this tool from the following OMRON website. https://www.ia.omron.com/k7ge_tool 

In the interest of product improvement, the K7GE-MG Logging Tool specifications are subject to change without notice. 

**13** omRon ~~a~~ 

## **K7GE-MG** 

## **Conformance to Safety Standards** 

- For wiring from the Probe Unit to the load, use a Class CC, Class J, or Class T fuse with a rated current of 7 A or less. 

- The protection provided by the device may be impaired if the device is used in a manner that is not specified by the manufacturer. 

- To use the Product, install it as an embedded device within a control panel. 

- The table below shows the nominal voltage and measurement circuit connections available for each measurement category in the Main Power Supply System Configurations. Do not use the device under conditions that exceed this category and conditions. 

||**Main Power Supply System Configurations**|**Main Power Supply System Configurations**|**Main Power Supply System Configurations**|**Main Power Supply System Configurations**|**Main Power Supply System Configurations**|**Main Power Supply System Configurations**|**Main Power Supply System Configurations**|**Main Power Supply System Configurations**|
|---|---|---|---|---|---|---|---|---|
||3-phase, 4-wire type<br>(neutral point grounding)<br>TT<br>TN-C-S<br>P1<br>P2<br>N<br>P3<br>E<br>E<br>L1<br>L2<br>N<br>L3<br>PE<br>PEN|3-phase,<br>3-wire type<br>(no grounding)<br>P1<br>P2<br>P3<br>E<br>E||3-phase, 3-wire type<br>(single-phase<br>grounding)<br>P1<br>P2<br>P3<br>E<br>E||Single-phase,<br>2-wire type<br>AC or DC<br>L1<br>L2<br>E<br>E||Single-phase<br>(split phase),<br>2-wire type<br>AC or DC<br>L1<br>L2<br>E<br>E<br>N|
|**CAT III**|Phase voltage/line voltage<br>277 V/480 V||Line voltage<br>300 V||Line voltage<br>300 V||Line voltage<br>240 V|Phase voltage/<br>line voltage<br>240 V/480 V|
|**CAT II**|347 V/600 V in addition<br>to the above|480 V in addition<br>to the above||480 V in addition<br>to the above||480 V in addition<br>to the above||Same as above|
||||||||||
|**Connection to**<br>**measurement**<br>**circuit**|TT:<br>Connect E in the diagram above<br>to the No. 7 terminal (PE) of the<br>K7GE-MGM.<br>Connect P1 and P2 to the No. 1<br>and No. 3 terminals of the<br>K7GE-MG1.|Connect E in the diagram above to the No. 7<br>terminal (PE) of the K7GE-MGM.<br>Connect P1 and P2 to the No. 1 and No. 3<br>terminals of the K7GE-MG1.||||Connect E in the diagram above to the No. 7<br>terminal (PE) of the K7GE-MGM.<br>Connect L1 and L2 to the No. 1 and No. 3<br>terminals of the K7GE-MG1.|||
||TN-C-S:<br>Connect PE in the diagram<br>above to the No. 7 terminal (PE)<br>of the K7GE-MGM.<br>Connect L1 and L2 to the No. 1<br>and No. 3 terminals of the<br>K7GE-MG1.||||||||



## **Measurement Category** 

The measurement category classifies the places and equipment entry wire which you can connect to the measurement terminals, as prescribed in EN/IEC 61010-2-030. 

Each category is as follows. 

CAT I: Equipment to connect to circuits where measures are taken to limit transient overvoltages to low levels 

CAT II: Energy-consuming equipment with an energy supply from fixed wiring equipment (such as a power outlet) CAT III: Equipment in fixed wiring equipment that particularly demands equipment reliability and effectiveness CAT IV: Equipment to use at the electrical service entry 

**==> picture [192 x 122] intentionally omitted <==**

**----- Start of picture text -----**<br>
Service<br>entry wire<br>Distribution board<br>Internal wiring<br>CAT III<br>CAT IV<br>Fixed CAT I CAT II<br>equipment<br>Power<br> outlet<br>**----- End of picture text -----**<br>


Microsoft, Windows is either registered trademarks or trademarks of Microsoft Corporation in the United States and other countries. Megger is a registered trademark or trademark of Megger Group Limited. 

Modbus is a registered trademark or trademark of Schneider Electric USA, Inc. in Japan, the United States or other countries. Other company names and product names in this document are the trademarks or registered trademarks of their respective companies. 

**14** 

## **Terms and Conditions Agreement** 

## **Read and understand this catalog.** 

Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments. 

## **Warranties.** 

(a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron disclaims all other warranties, express or implied. 

(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. 

Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty, repair, indemnity or any other claims or expenses regarding the Products unless Omron’s analysis confirms that the Products were properly handled, stored, installed and maintained and not subject to contamination, abuse, misuse or inappropriate modification. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice, recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above warranty. 

See http://www.omron.com/global/ or contact your Omron representative for published information. 

## **Limitation on Liability; Etc.** 

OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY. 

Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted. 

## **Suitability of Use.** 

Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine, system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases. 

NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. 

## **Programmable Products.** 

Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence thereof. 

## **Performance Data.** 

Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability. 

## **Change in Specifications.** 

Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice to change part numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at any time to confirm actual specifications of purchased Product. 

## **Errors and Omissions.** 

Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical or proofreading errors or omissions. 

## KC Mark 표준 준수 

## 사  용  자  안  내  문 

이 기기는 업무용 환경에서 사용할 목적으로 적합성평가를 받은 기기로서 가정용 환경에서 사용하는 경우 전파간섭의 우려가 있습니다. 

## **OMRON Corporation      Industrial Automation Company Kyoto, JAPAN** 

**Authorized Distributor:** 

**Contact:  www.ia.omron.com** 

_**Regional Headquarters**_ 

**OMRON EUROPE B.V.** Wegalaan 67-69, 2132 JD Hoofddorp The Netherlands Tel: (31)2356-81-300/Fax: (31)2356-81-388 

## **OMRON ASIA PACIFIC PTE. LTD.** 

No. 438A Alexandra Road # 05-05/08 (Lobby 2), Alexandra Technopark, Singapore 119967 Tel: (65) 6835-3011/Fax: (65) 6835-2711 

## **OMRON ELECTRONICS LLC** 

2895 Greenspoint Parkway, Suite 200 Hoffman Estates, IL 60169 U.S.A. Tel: (1) 847-843-7900/Fax: (1) 847-843-7787 

**OMRON (CHINA) CO., LTD.** Room 2211, Bank of China Tower, 200 Yin Cheng Zhong Road, PuDong New Area, Shanghai, 200120, China Tel: (86) 21-5037-2222/Fax: (86) 21-5037-2200 

© OMRON Corporation 2020  All Rights Reserved. In the interest of product improvement, specifications are subject to change without notice. **Cat. No. N225-E1-01** 

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