K3NC Datasheet, PDF (12/23 Pages) Omron Electronics LLC – Up/Down Counting Meter

I Output Operation Timing in RUN Mode (Relay and Transistor Outputs)
The K3NC can output the results of Up/Down counting as comparative outputs.
The output mode can be set to the ALL-H mode or the ALL-L mode.
ALL-H
If the ALL-H output mode is selected, outputs 1 to 5 will be
ON when the measured value exceeds set values 1 to 5.
ALL-L
If the ALL-L output mode is selected, outputs 1 to 5 will be
ON when the measured value is less than set values 1 to 5.
Set value 5
Set value 4
Set value 3
Set value 2
Set value 1
Measured value
See note
Set value 5
Set value 4
Set value 3
Set value 2
Set value 1
Measured value
See note
Reset
Compensation
value
Output 5
Output 4
Output 3
Output 2
Output 1
Reset
Compensation
value
Output 5
Output 4
Output 3
Output 2
Output 1
Note: Set value 2 < compensation value < set value 3
While the reset signal is ON, the counting value will return to zero.
Note: Set value 2 < compensation value < set value 3
When the compensation signal is ON, the K3NC will be in counting operation starting with the preset compensation value. Depending on the setting
conditions, the compensation value will be effective only for the incrementing operation.
I Output Delay (Reference Value)
The following table shows the time required for a K3NC in a system to go into reverse output operation after the counting value reaches the value
preset with the K3NC, and is due to the output processing time of the K3NC, signal transmission time of the system, and the relay connected to
the K3NC.
Control I/O
Relay contact output
NPN/PNP transistor output
Reset input
Compensation input
Bank switch
3.0 to 10.0 ms
0.1 to 0.6 ms
12.0 to 16.0 ms
12.0 to 16.0 ms
60.0 to 100.0 ms
Output or response delay time
Note: Output delay time varies with the operating environment. If the output delay time will possibly have a serious influence on your system, check
the actual output delay time before applying the K3NC to the system.
I Input Mode and Counting Values
u-d b : Up/Down B individual input
u-d c : Up/Down C phase difference input
INA
INA
INB
INB
Counting
value
Counting
value
Note: 1. “B” must be larger than half the minimum signal width. If it is smaller, an error of ±1 count may occur.
2. Refer to the following for the meanings of the H and L characters in the above timing charts.
Signal
H
L
No-voltage input
Short-circuit
Open
C-142 Up/Down Counting Meter K3NC