K6Cm Common Specifications - Omron K6CM User Manual

1 Overview
1-4-2

K6CM Common Specifications

Function Specifications
Item
Target motor
Input Measurement
value
Sampling cycle
Moving averaging
of measured val-
ues
Trigger mode
Start and end In case of no trig-
of measuring ger (always mea-
and monitor- suring and
ing monitoring)
In case of external
trigger (excluding
K6CM-ISM)
In case of internal
trigger
Trigger count
Alarm setting By measurement
value
Alarm hysteresis
Alarm latch
Measuring Individual alarm
and monitor- by measurement
ing method value
Comprehensive
alarm as K6CM
device
1 - 10
Three-phase induction motor (possible for current on secondary side of inverter)
However, depending on how the inverter is used, changes may not be confirmed by mea-
surement. For the Insulation resistance type (K6CM-ISM), refer to the Wiring Diagram of
the Insulation Resistance Type (K6CM-ISM) on page 4-20 in 4-4-1 I/O wiring on page
4-19.
It depends on the model of the K6CM device.
Refer to "Measurement values for each K6CM device "
It depends on measurement value.
Refer to 1-4-3 K6CM device Individual Specifications on page 1-13
Every time sampling is performed, it is possible to average past n times of data including
that sampling data.
Either n = 1, 2, 4, 8, 16, or 32
Moving averaging of measured values
Specify the start condition of measuring and monitoring.
External trigger (excluding K6CM-ISM), internal trigger, or no trigger (always available)
can be selected.
Refer to 3-2 Measuring and Monitoring Execution Conditions on page 3-14
Measuring and monitoring during power ON
One of the following
• Start measuring and monitoring when the external input changes from OFF to ON, and
stop measuring and monitoring when the specified time has elapsed
• Start measuring and monitoring when the external input changes from ON to OFF and
stop measuring and monitoring when the specified time has elapsed
• Measuring and monitoring while external input is ON
One of the following
• When the measured value exceeds the set value (trigger level) Start measuring and
monitoring, and end measuring and monitoring when the specified time has elapsed
• When the measured value falls below the set value (trigger level) Start measuring and
monitoring, and when the specified time elapses, end measuring and monitoring
• Measuring and monitoring while the set value (trigger level) is exceeded
It is a function to simply estimate the life of the motor from the number of triggers since
the start of measurement. The trigger count can not be reset.
Total of external trigger and internal trigger: 0 to 6553, 500 times.
The number of triggers is updated every hour. Therefore, if the power is turned OFF
before 1 hour elapses, the trigger count can not be recorded correctly.
When it reaches 6553, 500 times, it will not be counted any more.
It depends on K6CM device type. See "Measurement values and alarm settings for each
K6CM device type".
Critical level and Warning level can be set for each upper limit or lower limit (different
depending on measurement value) of measured value.
10% width of threshold setting value (fixed)
Depending on the setting, you can specify None / Yes. If yes, the alarm condition (alarm
bar, both transistor outputs 1 and 2) is latched. Can be released by the front [ALM RST]
key (cancellation by communication is impossible).
Compare the measured value with the alarm set value (Critical level and Warning level)
and output an alarm (Critical, Warning).
When multiple alarms (Critical, Warning) occur, they are output by OR logic*1with priority
of Critical> Warning.
K6CM Motor Condition Monitoring Device User's Manual (N219)
Specifications