K3NC Datasheet, PDF (8/23 Pages) Omron Electronics LLC – Up/Down Counting Meter

I Block Diagram
Power supply
for sensor
Sensor A
Sensor B
GND
Input circuit
Key
switch
LED
Frequency
measurement
circuit
8-bit
microcomputer
Output
circuit
Control input _{Control input}
circuit
Waveform
adjustment
circuit
Control power
supply
Power supply
circuit
Voltage stabilizing
circuit
Voltage stabilizing
circuit
Voltage stabilizing
circuit
I Rotary Encoder Connection Example
Power supply for
sensor (input circuit)
Frequency measurement circuit
Waveform adjustment circuit
8-bit microcomputer
Control input circuit
INA/INB
RESET
COMPENSATION
BANK 1, 2
0V
Phase A
Phase B
Counts input signals.
Accepts Up/Down (individual or phase difference) inputs.
Resets the present value to zero.
No counting inputs are accepted when a RESET input is ON.
RESET is lit when a RESET input is ON.
Note: External reset minimum signal width: 16 ms
Resets the present counting value to the compensation value at the rising edge of a compensation input. In the
compensation value setting parameter, it is possible to set to “Effective during incrementing and decrementing a
count” or to “Effective only during incrementing a count.”
Note: External compensation input minimum signal width: 16 ms
Selects one of the four banks.
Bank no.
Control input
Bank 1
Bank 2
1
OFF
OFF
2
ON
OFF
3
OFF
ON
4
ON
ON
Note: Bank switching minimum signal width: 100 ms max.
C-138 Up/Down Counting Meter K3NC