Omron, K6CM Series

No need for time-consuming patrol inspection or expertise.

K6CM informs you of the motor's maintenance timing.

[Problems]

It's difficult to prevent motor issues caused by degradation.

The conventional motor condition check had several check items. Therefore a skilled maintenance engineer was required to judge the motor's maintenance timing. Additionally, inspection was time-consuming because there were many motors.

Example of patrol inspection items

Motor failure mode

[Solution from OMRON]

Motors can be maintained in advance of failure due to degradation.

K6CM (comprehensive current diagnosis type) can consistently monitor motor conditions by observing the current waveform of the motor.
Additionally, you can understand the motor's maintenance timing without depending on an engineer, because K6CM provides threshold value setting.

What is comprehensive current diagnosis?

When an abnormality occurs in the load such as rotary shaft or reducer, the motor does not rotate smoothly and a distortion occurs in its current waveform.
K6CM measures its distortion as a degradation level.

With a factory floor signal light

With an office PC

With the accessory software "Motor Condition Monitoring Tool", you can monitor motor conditions remotely.
* The screen is a sample image.

Monitors the 3-phase induction motor which is the driving force of every facility.

List of Models

Ratings

Power Supply	Power supply voltage		K6CM-[][]MA: 100 to 240 VAC, 50/60 Hz K6CM-[][]MD: 24 VAC, 50/60 Hz, 24 VDC
	Allowable operating voltage range		85% to 110% of power supply voltage
	Power supply frequency range		45 to 65 Hz
	Power consumption		K6CM-VBM[] 24 VAC/24 VDC: 3.8 VA/2.1 W max. 100 to 240 VAC: 7.1 VA max. K6CM-ISM[] 24 VAC/24 VDC: 3.7 VA/2.0 W max. 100 to 240 VAC: 6.2 VA max. K6CM-CIM[] 24 VAC/24 VDC: 3.1 VA/1.6 W max. 100 to 240 VAC: 6.0 VA max.
Input	Vibrations (vibration sensor)	Detection frequency	10 Hz to 10 kHz
	Vibrations (vibration sensor)	Max. operating acceleration	10 G
	Insulation resistance (ZCT (IRT))	Rated input voltage	(Line voltage) 200 to 480 VAC, 50 Hz/60 Hz
	Insulation resistance (ZCT (IRT))	Rated path current	300 AAC
	Current, comprehensive current diagnosis (CT)	Rated input current	5 A, 25 A, 100 A, 200 A, 400 A, 600 A
Applicable motor type			Three-phase induction motor (Rated voltage 480 V or less)
Outputs	Output form		Transistor output
	Output capacity		3-point
	Output rating		Rated voltage: 24 VDC Max. current: 50 mA, DC
Ambient operating temperature			-10 to +55°C (with no condensation or icing)
Storage temperature			-20 to +65°C (with no condensation or icing)
Ambient operating humidity			25% to 85% RH (with no condensation)
Storage humidity			25% to 85% RH (with no condensation)
Case color			Black
Case material			Polycarbonate UL94-V0
Altitude			2,000 m max.
Applicable wires			Stranded wires, solid wires, or ferrules
Applicable wire size			0.25 to 1.5 mm² (AWG24 to 16)
Wire insertion force			8 N max. (AWG20)
Screwdriver insertion force			15 N max.
Wire stripping length			8 mm
Recommended flat-blade screwdriver			XW4Z-00B (Omron)
Current capacity			10 A (per pole)
Number of insertions			50 times
Weight			Approx. 200 g
Mounting			Mounts to DIN Track screw mounting
Dimensions			45 (W) × 90 (H) × 90 (D) mm
Setting method			Communication settings from a dedicated tool via EtherNet/IP
Other functions			Display value selection, self-diagnosis error output, setting value initialization, operation integration
Accessories			Operation manual, CD-ROM (Motor condition monitoring Tool)

Characteristics

Measurement range	K6CM-VB		Acceleration: 0.05 to 9.99 G, Velocity: 0.90 to 45.00 mm/s, Motor temperature: 0 to 80°C, Differential temperature: 0 to 80°C
	K6CM-IS		Insulation resistance: 0.000 M to 1.000 MΩ, Leakage current: 0.0 mA to 200.0 mA
	K6CM-CI		Current Rating 5 A: 1.00 to 5.00 A Rating 25 A: 5.0 to 25.0 A Rating 100 A: 20.0 to 100.0 A Rating 200 A: 40.0 to 200.0 A Rating 400 A: 80.0 to 400.0 A Rating 600 A: 120.0 to 600.0 A Rated frequency: 20 to 80 Hz Degradation level: 0 to 999 Recommended frequency: 20 to 80 Hz *1
Measurement absolute accuracy	K6CM-VB	Acceleration	±3 dB±2 digit (at 25°C)
	K6CM-VB	Temperature	Motor temperature: ±3°C±2 digit (±6°F±2 digit) Temperature Gap: ±6°C±2 digit (±12°F±2 digit)
	K6CM-IS	Insulation resistance	±35% rdg±2 digit (when the insulation resistance is 0.2 MΩ max.), when a 200-V/7.5-kW max. motor is used 2 ±35% rdg±2 digit (when the insulation resistance is 0.4 MΩ max.), when a 400-V/7.5-kW max. motor is used 2
	K6CM-CI	Current	±1.0% FS±1 digit (at 10 to 30°C, CT variation is not included) *3
Sampling cycle	K6CM-VB		Acceleration: 50 ms, Velocity: 0.5 s, Temperature: 0.5 s
	K6CM-IS		Normal mode: 10 s, Inverter special measurement mode: 60 s
	K6CM-CI		Comprehensive current diagnosis: 5 s, Current: 5 s
Moving average frequency			1, 2, 4, 8, 16, 32 times
External trigger *4	External contact input specification		Short-circuit: Residual voltage 1.5 V max. Open: Leakage current 0.1 mA max.
External trigger *4	Current during short- circuiting		Approx. 7 mA
Transistor output			Contact configuration: NPN open collector Rated voltage: 24 VDC (maximum voltage: 26.4 VDC) Max. current: 50 mA, DC
Alarm	Parameters that can be output		K6CM-VB: Acceleration, Velocity, motor temperature, Temperature Gap K6CM-IS: Insulation resistance K6CM-CI: Degradation level, current
	Expression method		Transistor output, alarm bar
	Setting value	K6CM-VB	Acceleration: 0.00 to 99.99 G, Velocity: 0.00 to 99.99 mm/s, Motor temperature: 0 to 9999 deg., Differential temperature: 0 to 9999 deg.
		K6CM-IS	Insulation resistance: 0.000 M to 9.999 MΩ
		K6CM-CI	Current Rating 5 A: 00.00 to 99.99 A Rating 25 A/100 A/ 200 A/400 A/600 A: 0.0 to 999.9 A Degradation level: 0 to 999
	Hysteresis		10% width of setting value
	Reset method		Manual reset/automatic reset (switchable) * Manual return method: Press the ALMRST button
LCD display			7-Segment digital display and single-shot display Font height 14 mm
Applicable standards	Conforming standards		EN61010-2-030 Installation environment: Pollution degree 2, overvoltage category II, measurement category II
	EMC		EN61326-1(EMI: Class A EMS: Industrial Location) Acceleration ± 0.1G, Velocity ±2.25mm/s, Temperature ± 6°C, insulation resistance ± 35% rdg, current ± 10% F.S.
	Safety standards		UL61010-2-030 (listing) Korean Radio Waves Act (Act 10564) RCM EAC
Insulation resistance			20 MΩ min. Between all external terminals and the case Between all power supply terminals and all other terminals Between all sensor connection terminals and trigger input terminal + output terminal + all EtherNet/IP ports
Dielectric strength			2,000 VAC for 1 minute Between all external terminals and the case Between all power supply terminals and all other terminals Between all sensor connection terminals and trigger input terminal + output terminal + all EtherNet/IP ports
Vibration resistance			Vibration frequency 10 to 55 Hz, slice amplitude 0.35 mm in each of X, Y, Z directions 5 minute × 10
Shock resistance			100 m/s², 3 times each in 6 directions along 3 axes
Degree of protection			IP20
LED display	Alarm bar		Red/Yellow/Green
LED display	*MS, NS 5**		Red/Green
Ethernet communication	Number of ports		1
	Physical layer		Ethernet: Connector RJ45
	Type		100BASE-TX
	Transmission distance (Maximum cable length)		100 m (Between hub and node)
	Topology		Star type

*1. When used at a frequency higher than 80 Hz, the tendency toward motor degradation is less noticeable.
*2. For details, refer to the technical data on Data Sheet.
*3. For the frequency characteristics of the CT, refer to the technical data on Data Sheet.
*4. The external trigger function can be used only when the insulation resistance type is EIP CPU version 1.1 or higher.
*5. MS: Product status display, NS: Network status display.

Input part

Vibration & temperature sensor

Ratings

Model		K6CM-VBS1
Power supply voltage		Supplied from K6CM-VBM
Sensor head	Max. acceleration	10 G
Ambient operating temperature		Pre-amplifier: -10 to +55°C (with no condensation or icing) Sensor head: -10 to +80°C (with no condensation or icing)
Storage temperature		Pre-amplifier: -20 to +65°C (with no condensation or icing) Sensor head: -20 to +90°C (with no condensation or icing)
Ambient operating humidity		25% to 85% RH (with no condensation)
Storage humidity		25% to 85% RH (with no condensation)
Altitude		2,000 m max.
Case color		Pre-amplifier: Black Sensor head: Silver
Case material		Pre-amplifier: Polycarbonate UL94-V0 Sensor head: Aluminum alloy (ADC12) / Zinc die casting (ZDC2) (the threaded part is Steel (S45C))
Weight		Pre-amplifier: Approx. 210 g (including cables) Sensor head: Approx. 40 g (including cables)
Mounting		Pre-amplifier: DIN rail mounting, screw mounting Sensor head: Screw mounting Between pre-amplifier and sensor head: Connector connection (smart click connector)
Wire length		Between pre-amplifier and sensor head: 2.6 m+0.3 m (cannot be extended) Between pre-amplifier and main unit: 1 m Can be extended up to a maximum length of 100 m

Characteristics

Model		K6CM-VBS1
Measurement range		Specified in main unit “Characteristics”
Applicable standards	Conforming standards	EN 61010-2-030 Installation environment: Pollution degree 2, overvoltage category II, measurement category II
	EMC	EN 61326-1 (EMI: Class A EMS: Industrial Location)
	Safety standards	UL 61010-2-030 (listing) RCM EAC
Insulation resistance		20 MΩ min.
Dielectric strength		500 VAC for one minute
Vibration resistance	Pre-amplifier	Vibration frequency 10 to 55 Hz, slice amplitude 0.35 mm in each of X, Y, Z directions 5 minute × 10
Vibration resistance	Sensor head	Vibration frequency 10 to 55 Hz, slice amplitude 0.35 mm in each of X, Y, Z directions 5 minute × 10
Shock resistance	Pre-amplifier	100 m/s², 3 times each in 6 directions along 3 axes
Shock resistance	Sensor head	100 m/s², 3 times each in 6 directions along 3 axes
Degree of protection	Pre-amplifier	IP20 (excluding the sensor-side cable)
Degree of protection	Sensor head	Conforming to IP67G (JIS C 0920: 2003, Appendix 1)
LED display		Pre-amplifier PWR: Green, ERR: Red, COM: Orange

ZCT (IRT)

Ratings and Specifications

Model		K6CM-ISZBI52
Construction		Indoor split type
Rated path current		300 A
Through hole dia.		52 mm dia.
Rated voltage		200 to 480 VAC, 50 Hz/60 Hz three phase
Measurement range		Specified in main unit “Characteristics”
Measurement accuracy		Specified in main unit “Characteristics”
Voltage input terminal		3-terminal lead wire, Length: 1m (pre-wired cable)
Output terminal		4-terminal lead wire, Length: 1m (pre-wired cable) Available wire length 100 m max.
Applicable standards	Conforming standards	EN 61010-2-030 Installation environment: Pollution degree 2, overvoltage category II, measurement category II
	EMC	EN 61326-1 (EMI: Class A EMS: Industrial Location)
	Safety standards	UL 61010-2-030 (Recognition) + CSA C22.2 No. 61010-2-030 RCM EAC
Insulation resistance		Between Mounting bracket - Secondary winding: 100 MΩ min.
Dielectric strength		Between Mounting bracket - Secondary winding: 2000 VAC, 1 minute
Ambient operating temperature		-10 to +55°C (with no condensation or icing)
Ambient operating humidity		25 to 85% (with no condensation)
Weight		Approx. 2.3 kg (including cables)
Degree of protection		IP20

CT

Ratings and Specifications

Model		K6CM- CICB005	K6CM- CICB025	K6CM- CICB100	K6CM- CICB200	K6CM- CICB400	K6CM- CICB600
Construction		Indoor split type
Primary-side rated current		5 A	25 A	100 A	200 A	400 A	600 A
*Measurement range 1**		1 to 5 A	5 to 25 A	20 to 100 A	40 to 200 A	80 to 400 A	120 to 600 A
Secondary-side rated current		Dedicated current
Secondary winding		3000 turns				6000 turns	9000 turns
Insulation resistance		Between output terminal and case: 50 MΩ min.
Dielectric strength		Between output terminal and case: 2,000 VAC, 1 minute
Protective element		7.5 V clamp element
Permissible attachment/removal frequency		100 times
*Attachable wire diameter 2**		7.9 mm dia. max.	9.5 mm dia. max.	14.5 mm dia. max.	24.0 mm dia. max.	35.5 mm dia. max.
Operating temperature/humidity range		-20 to +60°C, 25 to 85% (with no condensation or icing)
Storage temperature/humidity range		-30 to +65°C, 25 to 85% (with no condensation or icing)
Supplied cable length		2.9 m (pre-wired cable)
Supplied cable terminal	Main unit side	Ferrule terminal
Supplied cable terminal	CT side	Round terminal
Degree of protection		IP20

*1. Select a CT that brings the current of the applicable motor into the measurement range.
To calculate the current, refer to the technical data on Data Sheet.
*2. When using a flat wire, be sure to refer to the external dimensions drawing of the CT before selection on Data Sheet.

Motor condition monitoring Tool (Software included with main unit)

Operating Environment

Element	Specification
Supported OS	Windows 7, Windows 8.1, Windows 10 (32 bit/64 bit) (Japanese/English)
.NET	.NET Framework 4 and .NET Framework 3.5
CPU	1 GHz or more, 32 bit or 64 bit processor
Memory	1 GB or more, or 2 GB or more (for 64 bit)
HDD	Available space of 16 GB or more, or 20 GB or more (for 64 bit)
Others	Since this software is provided on a CD-ROM, a CD-ROM reading device must be available. If data is to be collected, a LAN I/F must be available.

Functions/Specifications

(For more details, refer to the catalog of each product.)

Item		Specification
Project	Number of files that can be created	No limit
Log file		CSV data format
Monitoring cycle		5 second to 99999 second (one-second step)
Number that can be registered in one project	Number of motors (device groups)	10
Number that can be registered in one project	Number of devices per motor (device group)	3 *
Graphic display	Type of graph	Line graph
Graphic display	Display period	1 hour, 1 day, 1 month, 3 months, 6 months, 1 year, 2 years, 5 years, 10 years, 20 years