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Moving average times

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If there is a lot of variation, simply create a moving average in the file and process the average.

 

In the case of a moving average time of 2 (4 times), calculate it per the figure below.

•  Check that the measurement results succeeding the moving average are stable enough. 

If the results are not stable, increase the moving average times. 

(Increasing the moving average times will increase the effect of old values apart from values measured at the current time.

 

E.g. In the case of a comprehensive current diagnosis, a sampling time of 5 seconds and a moving average times of 5 (32 

times) means that data from 160 seconds earlier will be effective.)

Moving average times

During actual operation, determine moving average times with more stable numbers while utilizing the data in the 

CSV file. Note that setting the moving average will result in a delay in the timing in which the critical state is detect

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ed. Set it while taking into consideration the balance between the severity of the variation and timing in which the 

critical state is detected.

Changing the inverter carrier frequency settings

For the K6CM-CI2M, it is possible to reduce variation by setting the inverter carrier frequency to 5 kHz or more. Try 

changing this setting if it is possible to change the equipment’s functional settings.

(4)  Determine the threshold levels before and after comparison.

Before maintenance, if a skilled maintenance engineer deems it necessary to perform emergency maintenance, set 

the state before maintenance as a Critical threshold level. If it is deemed necessary to perform maintenance soon, set 

the state before maintenance as a Warning threshold level.

This also applies to old equipment and if a critical state is reproduced.

Quantification of skilled knowledge

It is possible to quantify skilled knowledge by considering measurements of a motor deemed Critical by a skilled 

maintenance engineer as K6CM measurements. Set the threshold levels to coincide with the Critical level sensed 

by a skilled engineer.

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E.g. An average value of 50 means the warning threshold values is 47

Critical (old equipment) data

Normal (new equipment) data

In the case of 4 times,  

go to the fourth cell down

Summary of Contents for K6CM series

Page 1: ...ep6 Step7 Step8 Step2 Step3 Step4 Selection of sensor to use Confirmation of details Installation Connection Monitoring Pre verification Preparation of necessary items Installation of Motor condition...

Page 2: ...AC K6CM CICB005 5 A 1 00 A to 5 25 A 0 75 kW 1 5 kW to 2 2 kW K6CM CICB025 25 A 5 00 A to 26 25 A 1 5 kW to 5 5 kW 3 7 kW to 11 kW K6CM CICB100 100 A 20 A to 105 A 7 5 kW to 22 kW 15 kW to 45 kW K6CM...

Page 3: ...ide K6CM Step0 Step1 Step5 Step6 Step7 Step2 Step3 Step4 Selection of sensor to use Confirmation of details Installation Connection Monitoring Preparation of necessary items Motor condition monitoring...

Page 4: ...more HDD or DVD This procedure also details the resolution technique published on the following Microsoft official website Microsoft official website URL https msdn microsoft com ja jp library windows...

Page 5: ...at the bottom and select the same one as the PC you want to install the Motor condition monitoring Tool If you do not know the architecture of your PC perform the following procedure 1 On the persona...

Page 6: ...cognize the created OS media on the PC you want to install If you are using a USB memory or HDD connect it to a PC mount it on a PC if it is a DVD When the OS media is recognized correctly the followi...

Page 7: ...the following data will be displayed Execute the command prompt shell script with administrator privileges after confirming that the OS media was recognized correctly Hold down the Windows key while...

Page 8: ...Online Enable Feature FeatureName NetFX3 All Source D Sources SxS LimitAccess Enter the command on one line without line break Insert a space between Dism and the set of words that compose the comman...

Page 9: ...m the autoplay screen If automatic playback was not done double click the setup exe file under the CD drive The following Select language setting Dialog Box will be displayed CAUTION If the following...

Page 10: ...has already been installed in your PC Modify is used to change the function to be installed Do not use it now for future expansion Repair is used to reinstall the software tool Remove is used to unin...

Page 11: ...icense agreement and click the Next Button if you can agree to all the terms The User Information Dialog Box appears 5 Click the Install Button Installation of the Motor condition monitoring Tool star...

Page 12: ...ton If WinPcap is already installed go to step 15 10 Click the Next Button 11 Click the I Agree Button The Installation options Dialog Box appears 12 Check Automatically start the WinPcap driver at bo...

Page 13: ...ith the K6CM device with that wired LAN port select the following If the name of the network connection has been changed select the one with the changed name Windows 7 Select Local Area Connection Win...

Page 14: ...as below it is possible to connect the Motor condition monitoring Tool to the K6CM device Device name IP address Sub net mask Default gateway PC 192 168 250 100 255 255 255 0 Blank K6CM device 1st Uni...

Page 15: ...Device setting The following SYSMAC Gateway Console screen is displayed Confirm that Status is currently Start in the Communication Service field and that Startup is Auto Set the network port to whic...

Page 16: ...k the IP address tab select the IP address to use in communications then select OK CAUTION Do not select AutoIP address 169 254 xxx xxx x is an arbitrary number If IP addresses other than the AutoIP a...

Page 17: ...yed by selecting Device setting on the startup screen If IP address selection is incomplete i e Network port parame ter is Do not use 0 0 0 0 is displayed If 0 0 0 0 is displayed you can connect to th...

Page 18: ...Connecting to device wizard screen When the connection is successful the following IP address setting wizard screen will be displayed Set the K6CM IP address in reference to the procedure in Step 4 N...

Page 19: ...Acceleration alarm warning critical Input the motor status warning critical threshold levels Velocity alarm warning critical Motor temperature alarm warn ing critical Temperature gap alarm warning cri...

Page 20: ...click the Next button The following Navigating is completed wizard screen is displayed If registering a different device select the check box then click End This opens the Device Connection wizard scr...

Page 21: ...is being monitored Initially temporarily set a short monitoring cycle for example 5 seconds to confirm if the motor status is being measured The procedure for this is as follows Click the device setti...

Page 22: ...ring status will be displayed Any devices unable to communicate normally will show a communications error mark Communications error occurred If this communications error mark is shown then review PC a...

Page 23: ...e Each device detailed status screen click the area outlined in red The Each device detailed status screen will be displayed If you confirm that the motor state can be monitored we recommend setting t...

Page 24: ...100N 1000 mm Screw Mounting When installing the product using screws first drill screw holes using the dimensions in the figure below then tighten using specified size screws and flat washers to the c...

Page 25: ...0 V AC D 24 V AC DC 1 2 1 2 No polarity External trigger input Do not use 7 8 9 10 1 Sensor input VB Vibration and temperature sensor input IS ZCT IRT input K6CM VBS pre amplifier 7 8 9 10 K6CM ISZ ZC...

Page 26: ...apacity and voltage Refer to the Datasheet N218 for the formula to calculate the current value from the motor capacitance Using a K6CM CIM 1 When the motor is driven by an inverter it may not be possi...

Page 27: ...le By keeping a PC or PLC continuously connected you can monitor the state of a motor Modbus TCP 2 Built in EtherNet IP port Note Even without a PC the alarm bar of the main unit notifies you of chang...

Page 28: ...requency of the inverter See the User s Manual N219 for more information 3 Can be used only with EIP CPU version 1 2 or higher Three phase four conductor N phase ground Measurement trigger signal Dedi...

Page 29: ...al and conducts measurements before and after the maintenance part replacement overhaul etc planned for the motor 2 Reproduction of critical state Reproduce the critical state you want to detect in th...

Page 30: ...ettings Moving average times Ci1 3 8 times 0 OFF Moving average times except Ci1 0 OFF 0 OFF Refer to Monitoring cycle dedicated tool Click the monitoring setting button in the software tool set Monit...

Page 31: ...ing the equipment Set power ON OFF as a trigger and set the number of seconds until stabilization as the monitoring delay time Measurements in a stable state If the motor s load is fluctuating the mea...

Page 32: ...etected Changing the inverter carrier frequency settings For the K6CM CI2M it is possible to reduce variation by setting the inverter carrier frequency to 5 kHz or more Try changing this setting if it...

Page 33: ...number The following table is taken from IEC 60072 1 For frame numbers that are not listed in the table below check the shaft diameter from the motor manual 4GH 5JCHV FKCOGVGT OO R RQ QN NG GU U R RQ...

Page 34: ...l sized machines typical example motor with output less than 15 kW Large sized machines machine installed on a heavy foundation with high rigidity Large sized machines machine installed on a foundatio...

Page 35: ...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 P...

Page 36: ...438A Alexandra Road 05 05 08 Lobby 2 Alexandra Technopark Singapore 119967 Tel 65 6835 3011 Fax 65 6835 2711 OMRON CHINA CO LTD Room 2211 Bank of China Tower 200 Yin Cheng Zhong Road PuDong New Area S...

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