New Product

Motor Condition Monitoring Device

K6CM

Quantifying the status of a three-phase

induction motor and pump. * ZCT (IRT) is compatible with UL Recognition

The alarm output threshold default is

set. You can customize the value
according to the site.
As for comprehensive current diagnosis,
the degradation can be detected
comprehensively by combining each
motor part and the load side.
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
The insulation resistance of the three-
phase induction motor and pump can
be measured with current flowing (the
secondary side leakage current of the
inverter can also be detected).

Features
• Since the condition of the motor can be displayed in numeric values on the LCD, the motor condition can be checked
without a dedicated tool.
• The alarm output settings can be made according to the device, with reference to the threshold value that has
already been set by default.
• Depending on the threshold value setting for alarm output, the condition of the motor can be displayed on an alarm
bar in three colors; Green (normal), Yellow (warning), and Red (critical).
• Equipped with a transistor output that externally outputs the status of the motor and error states of the K6CM main
unit.
• Monitoring can be performed easily on the PC by EtherNet/IP communication and a dedicated tool.
• The numeric values of vibrations, temperature, insulation resistance, and current can be monitored by the same
dedicated tool.
• The trend of the motor condition can be monitored by a dedicated tool, and thus indications of a degradation can
be monitored.
• Clamp-type CT/ZCT that supports easy post installation. With a clamp-type CT/ZCT, the device can be installed
without changing or removing the existing wiring, which makes post-installation easy.
• Comes with the self-diagnosis function of the main unit internal circuit and analog sensing circuit.
• Push-in Plus Terminal Technology reduces wiring work (double-insertion holes for crossover wiring).
• UL listed for easy shipping to North America (ZCT (IRT) is UL recognized).

Windows is a registered trademark of Microsoft Corporation in the United States and or other countries.
EtherNet/IPTM is the trademarks of ODVA.
Other company names and product names in this document are the trademarks or registered rademarks of their respective companies.

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 K6CM
System Configuration
Basic Configuration
Vibration & temperature type (K6CM-VB)
Inverter *1

Three-phase 2.6 m
power supply
(pre-wired cable)
K6CM-VBS1
(pre-amplifier)
Connector
Single-phase
Tighten screw
power supply 0.3 m
1m perpendicularly
(extendable to 100 m) K6CM-VBS1 directly above
(Sensor head) rotation shaft
(pre-wired cable)
(load side)

Measurement
trigger signal

Output signal Object monitored

(transistor output)

K6CM-VBM
By keeping a computer or PLC
continuously connected, you can
monitor the state of a motor. Built-in EtherNet/IP port

Dedicated tool
*1. Using an inverter helps prevent motor deterioration.
In the conditions below, acceleration fluctuations tend to occur
more frequently.
• The frequency is stable at an inverter drive frequency of 50
EtherNet/IP Hz or higher.
LAN • The inverter carrier frequency is stable at 12.5 KHz or higher.
Test in the actual installation environment before use.
Note: Even without a computer, the alarm bar of the main unit notifies you of changes of motor state.

Insulation resistance type (K6CM-IS)

Three-phase, three-conductor, S-phase ground

(Measurement is also
Inverter
possible without an inverter)
Inverter secondary-side voltage
40 m max. (From ZCT to motor.
Extendable in some conditions) *2
Three-phase RS
power supply T

1m

K6CM-ISZBI52
(pre-wired cable)
Single-phase
power supply Object monitored

Measurement 7.5 kW or less

trigger signal 1 m (extendable to 100 m)
(Measurement error
By keeping a computer or PLC (pre-wired cable) increases when this
continuously connected, you can value is exceeded.)
monitor the state of a motor. Output signal
K6CM-ISM
(transistor output)
Dedicated tool

Built-in EtherNet/IP port

EtherNet/IP

LAN

Note: Even without a computer, the alarm bar of the main unit notifies you of changes of motor state.

*2. For details, refer to the technical data on page 16.

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 K6CM

Three-phase, four-conductor, N-phase ground

Note: When an inverter is used with three-phase,
four-conductor, N-phase ground, correct
measurement is not possible

40 m max. (From ZCT to motor.

Extendable in some conditions) *1
R
S
T
N

1m

K6CM-ISZBI52
(pre-wired cable)

Object monitored
Single-phase
power supply
7.5 kW or less
Measurement (Measurement error
trigger signal increases when this
By keeping a computer or PLC 1 m (extendable to 100 m) value is exceeded.)
continuously connected, you can (pre-wired cable)
monitor the state of a motor.
Output signal
Dedicated tool K6CM-ISM
(transistor output)

Built-in EtherNet/IP port

EtherNet/IP

LAN *1. For details, refer to the

technical data on page 16.
Note: Even without a computer, the alarm bar of the main unit notifies you of changes of motor state.

Comprehensive current diagnosis type (K6CM-CI)

(Measurement is also
Inverter *2 possible without an inverter)

Three-phase
power supply

K6CM-CIC (CT)
Any type of
Single-phase single-phase
power supply measurement

2.9 m
Measurement
trigger signal (pre-wired cable)
Object monitored
1.5 kW to 300 kW (400 V)
Output signal
K6CM-CIM 0.75 kW to 150 kW (200 V)
By keeping a computer or PLC (transistor output)
continuously connected, you can
monitor the state of a motor.
Built-in EtherNet/IP port
Dedicated tool
*2. When an inverter is used to drive a motor,
the level of degradation may not be
uniform. In that event, vary the inverter
EtherNet/IP
drive frequency.
The level of degradation may be greater
LAN then when driven with a commercial
power supply. Adjust the alarm threshold
Note : 1. Even without a computer, the alarm bar of the main unit notifies you of changes of motor state. appropriately for the motor drive method.
2. The degradation level may appear differently depending on the failure condition of the motor Always measure and monitor the level of
or load, or depending on the installation condition. degradation using the same inverter drive
frequency.

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 K6CM
Ordering Information
List of Models
Monitoring type Power supply voltage Model
100 to 240 VAC K6CM-VBMA-EIP
Vibration & temperature type
24 VAC/VDC K6CM-VBMD-EIP
100 to 240 VAC K6CM-ISMA-EIP
Insulation resistance type
24 VAC/VDC K6CM-ISMD-EIP
100 to 240 VAC K6CM-CIMA-EIP
Comprehensive current diagnosis type
24 VAC/VDC K6CM-CIMD-EIP

Input part
Vibration & temperature sensor (Order separately)
Appearance Appearance
Attachment part Applicable Relay Model
(pre-amplifier) (sensor head)

M6 screw K6CM-VBM K6CM-VBS1

Note: The vibration and temperature sensor consists of a sensor head and a pre-amplifier.
A magnet is provided for the easy attachment of the vibration and temperature sensor.

ZCT (IRT) (Order separately)

Through hole dia.
Rated voltage Applicable Relay Model
(mm)
200 to 480 VAC 52 dia. K6CM-ISM K6CM-ISZBI52
Note: ZCT (IRT) is the abbreviation for Zero Current Transfer (Insulation Resistance Transfer).
A cable for connection is provided with the ZCT (IRT).

CT (Order separately)
Rated primary-side current Applicable Relay Model
5A K6CM-CICB005
25 A K6CM-CICB025
100 A K6CM-CICB100
K6CM-CIM
200 A K6CM-CICB200
400 A K6CM-CICB400
600 A K6CM-CICB600
Note: A cable for connection is provided with the CT. Select a CT that sets the current of the applicable motor within the measurement range.
To calculate the current, refer to Comprehensive Current Diagnosis Type Technical Data (Reference) on page 17.

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 K6CM

EtherNet/IP communication cable recommended parts

Use a Category 5 or higher STP cable (shielded twisted pair cable).

Cable with Connectors

Recommended
Item Cable length (m) Model
manufacturer
Cable with Connectors on Both Ends 0.3 XS6W-6LSZH8SS30CM-Y
(RJ45/RJ45)
0.5 XS6W-6LSZH8SS50CM-Y
Standard RJ45 plug type *1
Wire Gauge and Number of Pairs: Cable color: Yellow *3 1 XS6W-6LSZH8SS100CM-Y
AWG26, 4-pair Cable OMRON
Cable Sheath material: LSZH *2 2 XS6W-6LSZH8SS200CM-Y
3 XS6W-6LSZH8SS300CM-Y
5 XS6W-6LSZH8SS500CM-Y
Cable with Connectors on Both Ends 0.3 XS5W-T421-AMD-K
(RJ45/RJ45) 0.5 XS5W-T421-BMD-K
Rugged RJ45 plug type *1
Wire Gauge and Number of Pairs: Cable color: Light blue 1 XS5W-T421-CMD-K
OMRON
AWG22, 2-pair Cable 2 XS5W-T421-DMD-K
5 XS5W-T421-GMD-K
10 XS5W-T421-JMD-K
*1. Cables with standard RJ45 plugs are available in the following lengths: 0.2 m, 0.3 m, 0.5 m, 1 m, 1.5 m, 2 m, 3 m, 5 m, 7.5 m, 10 m, 15 m, 20 m.
Cables with rugged RJ45 plugs are available in the following lengths: 0.3 m, 0.5 m, 1 m, 2 m, 3 m, 5 m, 10 m, 15 m.
For details, refer to the Industrial Ethernet Connectors Catalog (Cat. No. G019).
*2. The lineup features Low Smoke Zero Halogen cables for in-cabinet use and PUR cables for out-of-cabinet use.
*3. Cable colors are available in yellow, green, and blue. The last character of the model changes to "-G" or "-B".

Cable/Connector
Part name Manufacturer Model
Cable Hitachi Metals, Ltd. NETSTAR-C5E SA 0.5 × 4P *
RJ45 connector Panduit Corporation MPS588-C *
* It is recommended to use the cable and connector in combination described above.

Industrial switching hub (recommended parts)

Specifications
Product name Appearance Failure Model
Function No. of ports detection
function

3 × W4S1-03B
Priority control (QoS): EtherNet/IP control data
priority
Industrial switching hub Failure detection: Broadcast storm /
LSI failure detection
10/100BASE-TX, Auto-Negotiation 5 × W4S1-05B

5 ❍ W4S1-05C

List of Combinations
As for the K6CM, it is necessary to provide a combination of a vibration and temperature sensor, ZCT (IRT), and CT for the main unit and each
model.
One sensor must be provided for one main unit.

❍: Can be combined, ---: Cannot be combined

State monitoring components
K6CM-VBMA-EIP/ K6CM-ISMA-EIP/ K6CM-CIMA-EIP/
K6CM-VBMD-EIP K6CM-ISMD-EIP K6CM-CIMD-EIP
Vibration &
K6CM-VBS1 ❍ --- ---
temperature sensor
ZCT (IRT) K6CM-ISZBI52 --- ❍ ---
K6CM-CICB005 --- --- ❍
K6CM-CICB025 --- --- ❍
K6CM-CICB100 --- --- ❍
CT
K6CM-CICB200 --- --- ❍
K6CM-CICB400 --- --- ❍
K6CM-CICB600 --- --- ❍

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 K6CM
Ratings and Specifications
List of Models
Ratings
K6CM-@@MA: 100 to 240 VAC, 50/60 Hz
Power supply voltage
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
K6CM-VBM@
Power 24 VAC/24 VDC: 3.8 VA/2.1 W max.
Supply 100 to 240 VAC: 7.1 VA max.
K6CM-ISM@
Power consumption 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.
Detection frequency 10 Hz to 10 kHz
Vibrations
(vibration sensor) Max. operating
10 G
acceleration
Insulation resistance Rated input voltage (Line voltage) 200 to 480 VAC, 50 Hz/60 Hz
Input
(ZCT (IRT)) Rated path current 300 AAC
Current,
comprehensive current Rated input current 5 A, 25 A, 100 A, 200 A, 400 A, 600 A
diagnosis (CT)
Applicable motor type Three-phase induction motor (Rated voltage 480 V or less)
Output form Transistor output
Output capacity 3-point
Outputs
Rated voltage: 24 VDC
Output rating
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
Mounts to DIN Track
Mounting
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)

6
 K6CM

Characteristics
Acceleration: 0.05 to 9.99 G, Velocity: 0.90 to 45.00 mm/s,
K6CM-VB
Motor temperature: 0 to 80°C, Differential temperature: 0 to 80°C
Insulation resistance: 0.000 M to 1.000 MΩ,
K6CM-IS
Leakage current: 0.0 mA to 200.0 mA
Current
Rating 5 A: 1.00 to 5.00 A
Measurement Rating 25 A: 5.0 to 25.0 A
range Rating 100 A: 20.0 to 100.0 A
Rating 200 A: 40.0 to 200.0 A
K6CM-CI 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
Acceleration ±3 dB±2 digit (at 25°C)
K6CM-VB Motor temperature: ±3°C±2 digit (±6°F±2 digit)
Measurement Temperature
Temperature Gap: ±6°C±2 digit (±12°F±2 digit)
absolute
accuracy Insulation ±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
K6CM-IS ±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
resistance
K6CM-CI Current ±1.0% FS±1 digit (at 10 to 30°C, CT variation is not included) *3
K6CM-VB Acceleration: 50 ms, Velocity: 0.5 s, Temperature: 0.5 s
Sampling cycle 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 contact input Short-circuit: Residual voltage 1.5 V max.
External trigger specification Open: Leakage current 0.1 mA max.
*4 Current during short-
Approx. 7 mA
circuiting
Contact configuration: NPN open collector
Transistor output Rated voltage: 24 VDC (maximum voltage: 26.4 VDC)
Max. current: 50 mA, DC
Parameters that can be K6CM-VB: Acceleration, Velocity, motor temperature, Temperature Gap
K6CM-IS: Insulation resistance
output K6CM-CI: Degradation level, current
Expression method Transistor output, alarm bar
Acceleration: 0.00 to 99.99 G, Velocity: 0.00 to 99.99 mm/s,
K6CM-VB Motor temperature: 0 to 9999 deg., Differential temperature: 0 to 9999 deg.
K6CM-IS Insulation resistance: 0.000 M to 9.999 MΩ
Alarm Setting
Current
value Rating 5 A: 00.00 to 99.99 A
K6CM-CI 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
Manual reset/automatic reset (switchable)
Reset method
* Manual return method: Press the ALMRST button
7-Segment digital display and single-shot display
LCD display
Font height 14 mm
EN61010-2-030
Conforming standards
Installation environment: Pollution degree 2, overvoltage category II, measurement category II
EN61326-1(EMI: Class A EMS: Industrial Location)
Applicable EMC
Acceleration ± 0.1G, Velocity ±2.25mm/s, Temperature ± 6°C, insulation resistance ± 35% rdg, current ± 10% F.S.
standards UL61010-2-030 (listing)
Korean Radio Waves Act (Act 10564)
Safety standards
RCM
EAC
20 MΩ min.
Between all external terminals and the case
Insulation resistance Between all power supply terminals and all other terminals
Between all sensor connection terminals and trigger input terminal + output terminal + all EtherNet/IP ports
2,000 VAC for 1 minute
Between all external terminals and the case
Dielectric strength
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
Alarm bar Red/Yellow/Green
LED display
MS, NS *5 Red/Green
Number of ports 1
Physical layer Ethernet: Connector RJ45
Ethernet Type 100BASE-TX
communication Transmission distance
100 m (Between hub and node)
(Maximum cable length)
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 page 16.
*3. For the frequency characteristics of the CT, refer to the technical data on page 18.
*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.

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 K6CM

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

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

8
 K6CM

ZCT (IRT)
Ratings and Specifications
Item 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.
Conforming EN 61010-2-030
standards Installation environment: Pollution degree 2, overvoltage category II, measurement category II
Applicable EMC EN 61326-1 (EMI: Class A EMS: Industrial Location)
standards
UL 61010-2-030 (Recognition) + CSA C22.2 No. 61010-2-030
Safety
RCM
standards
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
Item
Construction Indoor split type
Primary-side rated current 5A 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
100 times
frequency
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
-20 to +60°C, 25 to 85% (with no condensation or icing)
range
Storage temperature / humidity
-30 to +65°C, 25 to 85% (with no condensation or icing)
range
Supplied cable length 2.9 m (pre-wired cable)
Supplied cable Main unit side Ferrule terminal
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 page 18.
*2. When using a flat wire, be sure to refer to the external dimensions drawing of the CT before selection on page 15.

9
 K6CM

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)
Since this software is provided on a CD-ROM, a CD-ROM reading device must be available.
Others
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 Number of motors (device groups) 10
registered in one
project Number of devices per motor (device group) 3*
Type of graph Line graph
Graphic display 1 hour, 1 day, 1 month, 3 months, 6 months,
Display period
1 year, 2 years, 5 years, 10 years, 20 years
* One vibration and temperature type, one insulation resistance type, and one current comprehensive diagnosis type can be set for one motor.

10
 K6CM
Connection Diagram
Terminal Diagram (Main Unit)
K6CM- VB M A -EIP
(1) (2)
(1) Sensor input
(2) Power voltage
VB: Vibration and IS: ZCT (IRT) input
A: 100 to 240 V AC D: 24 V AC/DC temperature sensor input
K6CM-VBS K6CM-ISZ
(pre-amplifier) (ZCT(IRT))

Red/ Red/
white Red white Red
1 2 1 2
1 2 7 8 7 8 7 8
(No polarity)
3 4 9 10 Black 9 10 Black Black 9 10 Black
/white /white

External trigger input CI: CT input

K6CM-CIC
(CT)

White Black

7 8
3 4
5V
680 Ω 0V
Output function
− +
13 14
Comparator Transistor output
15 16
17 18
13 14 15 16 17 18

Interior Interior Interior

Do not use

11
 K6CM
Nomenclature
Hook

Push-in Plus terminal Push-in Plus terminal

· Unit power supply · Sensor input
· External trigger input

Alarm bar
2D code
Measurement value units
(measurement type)

Current value, minimum value,

LCD display for measured and maximum measurement value type
values and other values
[ALM RST] key
Main unit status display Front operation part
[DISP] key

Product status display

Network status display Push-in Plus terminal

· Transistor output
EtherNet/IP port

Name Meaning
It is indicated in the following colors during measurement/monitoring.
Green: Alarm status (normal)
A bar on which the color of the emitted Yellow: Alarm status (Warning)
Alarm bar light changes according to the alarm Red: Alarm status (Critical)
status. The alarm bar is lit out in each of the following states:
When the power is OFF, when measurement is not being performed, and when a self-
diagnosis error has occurred, etc.
K6CM-VB “G”: Acceleration, “mm/s”: Velocity, “T”; Motor temperature,
Indicates the type of the measured value
“ T”: Temperature Gap (difference between motor temperature and room
being displayed. The type can be
Measurement type temperature)
switched each time the [DISP] key is
K6CM-IS “MΩ”: Insulation resistance, “mA”: Leakage current
pressed on the front operation part.
K6CM-CI “Cim”: Degradation level, “A”: Current
The main use of this key is to release the latched and fixed alarm state after returning
[ALM RST] key Releases the latched alarm state.
Front from the fault state to the normal state.
operation
[DISP] key Switches the type of the measured value being displayed.
part
Others If two keys are simultaneously pressed and held for 5 seconds or longer, all settings of the main unit are reset to factory defaults.
“MON”: Measurement / monitoring is being performed
The status of the main unit is indicated by
Main unit status display “ERR”: A self-diagnosis error has occurred
lighting of the LCD characters.
“AGE”: Running Time notification (it is recommended to replace the product main unit)
When measurement/monitoring is in progress,
Output of the alarm status (Warning). and the output method is Normally Closed
13-14 Can be set to Normally Closed or ON = Comprehensive alarm: Normal / OFF = Comprehensive alarm: Warning or Critical
Normally Open. and the output method is Normally Open
OFF = Comprehensive alarm: Normal / ON = Comprehensive alarm: Warning or Critical
Transistor When measurement/monitoring is in progress,
output Output of the alarm status (Critical). and the output method is Normally Closed
15-16 Can be set to Normally Closed or ON = Comprehensive alarm: Warning or Normal / OFF = Comprehensive alarm: Critical
Normally Open. and the output method is Normally Open
OFF = Comprehensive alarm: Warning or Normal / ON = Comprehensive alarm: Critical
OFF: A self-diagnosis error has occurred
17-18 Self-diagnosis error output.
ON: Other than the above
You can use "Trigger Type" to specify whether measurement/monitoring continue for a
set time after starting by the rise or fall of the external contact, or are executed while the
External Input of the external contact signal to
3-4 external contact is ON.
trigger input control measurement timing.
You can also specify settings to enable selection of a trigger mode other than external
trigger. *
Note: Warning: Indicates that it is time for maintenance.
Critical: Indicates that it is time for replacement.
* Trigger modes other than external trigger
Always: Trigger is not used. Measurement/monitoring are performed continuously after the power of the K6CM unit is turned on.
Internal trigger: Measurement/monitoring starts based on the relation between the measured value and set value (trigger level).
You can use "Trigger Type" to specify whether measurement/monitoring start and continue for a set time when the measured
value is over, or under, the set value (trigger level), or are executed while the measured value exceeds the set value (trigger
level).
Also, the external trigger function can be used only when the insulation resistance type is EIP CPU version 1.1 or higher.

12
 K6CM
Dimensions (Unit: mm)

List of Models
K6CM-@@M
(1.9)
90
(4)
45 86

90

Vibration & temperature sensor

K6CM-VBS1
Pre-amplifier M12 (smart click connector)

35

90 2,400 (40.7)

M12 (smart click connector)

31
35

(4)

Sensor head
Mounting hole dimensions
M6 screw
17 M12 (smart click connector)

A A´
M6

Surface finish
17 20 mm dia. or more

8 9 mm or more
17 31 300 (44.7)

A-A´ cross section

13
 K6CM

ZCT (IRT)
Indoor split type (159)
36.4
K6CM-ISZBI52 (150)
52 dia.

Four, M4

(152.5)

Two, M5
91

27.1

200 110

170 Mounting hole dimensions

Four, M6

53 53

170

14
 K6CM

CT
K6CM-CICB005 K6CM-CICB025

22.9
33 28.9
39

CT Through-hole CT Through-hole
Dimensions Dimensions
3 25.5 3
10 25.3
10
R5 R5
7.4 8.5
7.9 9.5
R8 R7.5
5.57 41.3
7.5 48

40

40.5

K6CM-CICB100 K6CM-CICB200

29.4 44.9
37.4 55.9

CT Through-hole CT Through-hole
Dimensions Dimensions
3
30.5 35.5
16 R8 24
R10 6

14.511
24
14.2 R9
53.7
R8 75.7

46
52.5

K6CM-CICB400 Cable supplied with CT

K6CM-CICB600
Product side CT side

Contraction tube

62.5
73.5

CT Through-hole
Dimensions
37 35.5
R18.5 6

35.5

92.5
R13

2.9 m

The cable supplied with the CT is shipped in the connected state.

54

15
 K6CM
Insulation Resistance Type Technical Data (Reference)
Method of measuring the value on the insulation resistance meter
Leakage current includes two types, namely capacitive leakage current (Ioc) that flows through the earth capacity, and resistive leakage current
(Ior) that flows due to the degradation of wiring and devices, and is the cause of electric shock and fire. The leakage current is determined by
detecting the value of the zero-phase current Io, which is the combined component of Ioc and Ior. (See the figure below)

Motor
R

ZCT
Io

U
Ioc
S T V
W

Io Ior
Ioc Ior
Ioc
Ior

About changes in the measurement accuracy

If there is almost no insulation deterioration in the motor, almost the entire constituent of Io becomes Ioc, and the measurement accuracy of Ior
declines. Further, if the Ioc based on the motor-specific electrical capacitance is larger than Ior, then the measurement accuracy will similarly
decline. Particularly, if the electrical capacitance increases in proportion to the capacitance of the motor, the measurement accuracy changes
depending on the motor capacitance.
The following items are the possible parameters affecting the measurement accuracy.
Increase in Ioc ......................Type of motor (manufacturer, structure), capacitance, number of poles,
and the length of wire between ZCT (IRT) and the motor
Other noise components.......Through-current, through-position
External factors.....................Voltage imbalance

Ioc

Capacitance Low High

No. of poles Less Many
Wire length Short Long

[Effect of residual current]

Another noise component is the residual current* (hereinafter, specified as Ir). Ir increases in proportion to the through-current.
* Residual current
Residual current refers to the error that occurs as a result of an imbalance in the magnetic flux of each phase inside the core due to the
arrangement of the through-wire of ZCT.
Errors also occur as a result of the imbalance in the magnetic circuit of ZCT.

Ir combines with Io, and is output to the secondary side of ZCT. Ir is the same frequency component as Ior, and the amount of current or the phase
difference with respect to Ior changes depending on the through-position of the power line passing through ZCT. Therefore, isolation from Ior, which
must essentially be detected, becomes difficult.
If the position of ZCT and the through-wire is fixed once, the phase of Ir does not change. Moreover, by fixing the through-wire in the center of
ZCT, Ir can be reduced. Fix and install the through-wire in the center as much as possible.
Use the following holder to fix the through-wire in the center of ZCT.
Part name Manufacturer Model
Rubber holder Midori Anzen Co. Ltd. HZ-25

16
 K6CM

Effect of voltage imbalance

The ZCT (IRT) calculates the Ior from the phase difference between the measured Io and the voltage. If there is a voltage imbalance, the phase
of each phase voltage will change, and an error will occur in the calculation of Ior. Use the measurement results of the case when the voltage
imbalance ratio is within 3%.

Range indicated by the measured value during insulation deterioration

The accuracy of the insulation resistance value is decided under the influence of several parameters. (The parameters are as described on
page 16)
An example of the range shown by the measured value as a result of deterioration of the insulation resistance is shown in the figure below.
Ioc may further increase depending on the manufacturer and structure of the motor, which may result in a decline in accuracy.

Insulation resistance of motor

Measurement value when Ir has

the opposite phase of Ior Conditions
1 MΩ
• Top runner of Company A
(200-V type, 7.5 kW, 4 poles)
Measurement value when Ir has • Wiring length of ZCT and motor: 40 m
the same phase as Ior • The through-wire is fixed in the center of ZCT
• Voltage imbalance ratio: 3%
0.2 MΩ

0.2 MΩ ±35% Range shown by the measured value

0.1 MΩ
Elapsed time

Inverter special measurement

A case is known where a motor is driven by setting the system voltage and inverter to the same frequency.
(Ex. System frequency: 60 Hz, inverter frequency: 60 Hz)
In the past, since it was not possible to remove the frequency component of the inverter in such a configuration, it was difficult to measure the
insulation resistance.
In the inverter special measurement, the measurement of the insulation resistance is made possible by detecting the minute deviation in frequency.
The 60 seconds required as the measurement time is the time for accumulation of the data necessary for this measurement.

Comprehensive Current Diagnosis Type Technical Data (Reference)

Use one CT per motor to detect current flowing into the motor. Select a CT that matches the motor capacity.
Maximum Applicable motor Applicable motor
CT type Measurement range
measurement range (200 VAC) (400 VAC)
K6CM-CICB005 1.00 A to 5.00 A 1.00 A to 5.25 A 0.75 kW 1.5 kW to 2.2 kW
K6CM-CICB025 5.00 A to 25.00 A 5.00 A to 26.25 A 1.5 kW to 5.5 kW 3.7 kW to 11 kW
K6CM-CICB100 20 A to 100 A 20 A to 105 A 7.5 kW to 22 kW 15 kW to 45 kW
K6CM-CICB200 40 A to 200 A 40 A to 210 A 30 kW to 45 kW 55 kW to 90 kW
K6CM-CICB400 80 A to 400 A 80 A to 420 A 55 kW to 90 kW 110 kW to 200 kW
K6CM-CICB600 120 A to 600 A 120 A to 630 A 110 kW to 150 kW 250 kW to 300 kW
Note: At no load, the motor current is at approximately half rated load.
Select a CT that can cover the range of 50% to 100% of rated current.

Use the following expression when calculating the current value from the motor capacitance.

Motor capacitance (kW) × 1000

Current value of motor (A) =
Motor voltage (V) × √3 × Power factor (0.9) × Efficiency (0.8)
(Example) When a 5.5-kW motor is used at 200 V

5.5 × 1000
Current value of motor = = 22 A
200 × √3 × 0.9 × 0.8
Therefore, the CT K6CM-CICB025 in which 22 A is within the measurement range is selected.
The measurement range is within 20 and 100 A even in the case of K6CM-CICB100, which means that 22 A is within the range and this model
can also be used. However, during selection, priority must be given to a CT having a small rated current value in order to realize more accurate
measurement.
Note: In the expression shown above, general values must be used for the power factor and efficiency, and the load factor must be 100%. However,
depending on the actual operating environment, the actual current value and measured value may be different. If the CT is used at a current value
that is below the lower-limit value of the measurement range of the CT, the measurement error of the degradation level will increase. Therefore, if
possible, measure the current during a steady-state operation with a clamp meter, etc., and select a CT corresponding to the current value.

17
 K6CM

The frequency characteristics of the CT are as indicated below.

K6CM-CICB005 K6CM-CICB025 K6CM-CICB100

1.00% 1.00% 1.00%

0.50% 0.50% 0.50%

20 A
F.S. tolerance

F.S. tolerance
F.S. tolerance
1A 5A
10 A 40 A
0.00% 2A 0.00% 0.00%
15 A 60 A
3A
20 A 80 A
4A
-0.50% -0.50% 25 A -0.50% 100 A
5A

-1.00% -1.00% -1.00%

20 30 40 50 60 70 80 20 30 40 50 60 70 80
20 30 40 50 60 70 80

Frequency [Hz] Frequency [Hz] Frequency [Hz]

K6CM-CICB200 K6CM-CICB400 K6CM-CICB600

1.00% 1.00% 1.00%

0.50% 0.50% 0.50%

80 A
F.S. tolerance

F.S. tolerance
40 A
F.S. tolerance

120 A
80 A 160 A
0.00% 0.00% 240 A
240 A 0.00%
120 A 360 A
160 A 320 A
480 A
-0.50% 200 A -0.50% 400 A -0.50% 600 A

-1.00% -1.00% -1.00%

20 30 40 50 60 70 80 20 30 40 50 60 70 80 20 30 40 50 60 70 80

Frequency [Hz] Frequency [Hz] Frequency [Hz]

Vibration & Temperature Type: Technical Data

Pairing of sensor head and pre-amplifier
The sensor head and the pre-amplifier are calibrated and inspected as a set at the factory shipment. Be sure to use them with the combination
shipped. The sensor head cannot be replaced.
To verify the combination, check the serial numbers on the label of the sensor head and the label of the pre-amplifier. The same serial number
means the correct combination.
If you change the combination of factory shipping conditions and then use them, the value of acceleration and the value of velocity will be
inconsistent, so measurement cannot be correctly monitored.

(01)04549734178730
(21)1342177281
MES:Ver.1.0

(01)04549734178730
(21)1342177281
MES:Ver.1.0
OMRON Corporation
MADE IN JAPAN

The number following (21) in the second line

is the serial number.
Make sure that this number on the sensor
head's label matches the number on the
pre-amplifier's label.

18
 K6CM
List of Parameters
Setting values
Model
Parameter Content K6CM K6CM K6CM
-VBM -ISM -CIM
Acceleration/upper-limit alarm threshold value (Critical and
0.00 to 99.99 G ●
Warning)
Velocity/upper-limit alarm threshold value (Critical and
0.00 to 99.99 mm/s ●
Warning)
Motor temperature/upper-limit alarm threshold value
0 to 9999 deg. ●
(Critical and Warning)
Temperature gap/upper-limit alarm threshold value (Critical
0 to 9999 deg. ●
and Warning)
Insulation resistance/lower-limit alarm threshold value
0.000 to 9.999 MΩ ●
(Critical and Warning)
Degradation level/lower-limit alarm threshold value (Critical
0 to 999 ●
and Warning)
Current/upper-limit alarm threshold value (Critical and CT rating 5 A: 00.00 to 99.99 A
●
Warning) CT rating 25 A/100 A/200 A/400 A/600 A: 0.0 to 999.9 A
Sets the IP address of the main unit.
Main unit IP address ● ● ●
The default value is “192.168.250.10” (common to all models)
Restarts the K6CM. Used to enable the settings after changing the
Software reset setting values. ● ● ●
0 → 1: Execute
Initializes the MAX/MIN value.
MAX/MIN reset ● ● ●
0 → 1: Execute
Sets which measurement value to display in the 7-segment display
Display value type at the front of the main unit. ● ● ●
0: PV (Present Value), 1: MIN, 2: MAX
Sets the trigger mode.
Trigger mode *1 ● ● ●
0: At all times, 1: External trigger, 2: Internal trigger
Sets Rise, Fall, or Level in the case of an internal trigger or external
Trigger type trigger. ● ● ●
0: Rise, 1: Fall, 2: Level
Sets the trigger level when “Internal trigger” and the trigger type
Trigger level ● ● ●
“Level” have been selected.
Sets the time for continuing measurement or monitoring in the case
of an internal trigger or external trigger, when the trigger type is
Monitoring time ● ● ●
either Rise or Fall.
Setting value: 0.1 to 600.0 s
Sets whether to enable or disable the alarm latch function.
Alarm latch ● ● ●
0: Disable (no latch), 1: Enable (latched)
Sets whether or not to use the main unit residual amount function.
Use Running Time ● ● ●
0: OFF (Do not use), 1: ON (Use)
Performs the averaging process for the past n-times of data
including the sampling data of that time, each time sampling of the
Moving average times measurement value is performed. ● ● ●
0: OFF, 1: 2 times, 2: 4 times, 3: 8 times, 4: 16 times,
5: 32 times
Sets the temperature unit.
Temperature unit ●
0: °C, 1: °F
Sets the Circuit topology.
0: Three-phase, three-conductor, S-phase ground
Circuit topology ●
1: Three-phase, four-conductor, N-phase ground,
load-side connection
Sets the Using inverter.
Using inverter ●
0: OFF (without inverter), 1: ON (with inverter)
Sets the inverter special measurement.
0: OFF, 1: ON
Inverter special measurement ●
(Refers to the special calculation performed when the inverter
frequency and commercial frequency are close.)
Selects the connected CT.
Current range ●
0: 5 A, 1: 25 A, 2: 100 A, 3: 200 A, 4: 400 A, 5: 600 A
Transistor output method *2 0: Normally Closed/1: Normally Open ● ● ●

*1. The external trigger function can be used only when the insulation resistance type is EIP CPU version 1.1 or higher.
*2. Can be used only with EIP CPU version 1.1 or higher.

19
 K6CM

Measured values / Status data

Model
Parameter Content K6CM K6CM K6CM
-VBM -ISM -CIM
Acceleration (Present value, MIN, MAX) 0.00 to 9.99 G ●
Velocity (Present value, MIN, MAX) 0.00 to 45.00 mm/s ●
Motor temperature 0 to 80°C (32 to 176°F) ●
Temperature gap (Difference between motor
0 to 80°C (32 to 176°F) ●
temperature and room temperature)

Acceleration status Bit 00: Present value measurement status

Bit 01: Present value input error
Velocity status Bit 04: MAX value measurement status
Bit 05: MAX value input error
●
Bit 08: MIN value measurement status
Motor temperature status Bit 09: MIN value input error
Bit 12: Individual alarm threshold value (Warning) setting
Temperature gap status Bit 13: Individual alarm threshold value (Critical) setting

Insulation resistance (Present value, MIN, MAX) 0.000 to 1.000 MΩ ●

Leakage current Ior (Present value, MIN, MAX) 0.0 to 200.0 mA ●
Leakage current Ioc (Present value) 0.0 to 200.0 mA ●

Bit 00: Present value measurement status

Ior status Bit 01: Present value input error
Bit 04: MAX value measurement status
Bit 05: MAX value input error
●
Bit 08: MIN value measurement status
Bit 09: MIN value input error
Ioc status Bit 12: Individual alarm threshold value (Warning) setting
Bit 13: Individual alarm threshold value (Critical) setting

Degradation level of the motor calculated by measuring the

Degradation level (Present value, MIN, MAX) current including the high-frequency component. ●
0 to 999
Current (Present value, MIN, MAX) 10 to 100% of the rated value ●

Bit 00: Present value measurement status

Degradation level status Bit 01: Present value input error
Bit 04: MAX value measurement status
Bit 05: MAX value input error
●
Bit 08: MIN value measurement status
Bit 09: MIN value input error
Current value status Bit 12: Individual alarm threshold value (Warning) setting
Bit 13: Individual alarm threshold value (Critical) setting

Measurement CPU version Measurement unit version ● ● ●

Main CPU version Main unit version ● ● ●
EIP CPU version EtherNet/IP unit version ● ● ●
1: Measurement/monitoring in progress,
Measurement status ● ● ●
0: Measurement/monitoring stopped
The product of the operation time and internal temperature
is integrated, and ON is set if it reaches the design life.
Running time status 1: Reached (Operation integration has reached 100%) ● ● ●
0: Not reached (Operation integration has not reached
100%)
Status of external trigger input.
Trigger input ● ● ●
1: ON, 0: OFF
Status of transistor 1.
TR1 (Transistor 1 output status) ● ● ●
1: ON, 0: OFF
Status of transistor 2.
TR2 (Transistor 2 output status) ● ● ●
1: ON, 0: OFF
Status of transistor 3.
TR3 (Transistor 3 output status) ● ● ●
1: ON, 0: OFF
Coefficient showing the extent of life of the main unit based
on the product of the operation time and internal
Running time ● ● ●
temperature. Incremented in units of 10% starting from 0%.
0000 hex to 0064 hex (0 to 100)

20
 K6CM

Model
Parameter Content K6CM K6CM K6CM
-VBM -ISM -CIM
Total integrated number of external triggers and internal
Trigger frequency triggers. Incremented by 1 after every 100 times. ● ● ●
0 to 65535
Threshold value setting of integrated alarm
State when the measurement value is “Warning”. ● ● ●
(Warning)
Threshold value setting of integrated alarm (Critical) State when the measurement value is “Critical”. ● ● ●
Acceleration/upper-limit alarm (Critical and
ON, OFF ●
Warning)
Velocity/upper-limit alarm (Critical and Warning) ON, OFF ●
Motor temperature/upper-limit alarm (Critical and
ON, OFF ●
Warning)
Temperature gap/upper-limit alarm (Critical and
ON, OFF ●
Warning)
Insulation resistance/lower-limit alarm (Critical and
ON, OFF ●
Warning)
Degradation level/lower-limit alarm (Critical and
ON, OFF ●
Warning)
Current/upper-limit alarm (Critical and Warning) ON, OFF ●

21
 MEMO

22
 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.

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for a period of twelve months from the date of sale by Omron (or such other period expressed in writing
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Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is
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OMRON Corporation Industrial Automation Company Authorized Distributor:
Kyoto, JAPAN
Contact: www.ia.omron.com
Regional Headquarters
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No. 438A Alexandra Road # 05-05/08 (Lobby 2), Room 2211, Bank of China Tower, In the interest of product improvement,
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