K3HB Datasheet, PDF (18/32 Pages) Omron Electronics LLC – Digital Indicators

Operation
■ Functions (Operating Modes)
F1 to F3
Function name
Function No.
Individual inputs
f1
Phase differential inputs f2
Pulse counting input f3
Function
Operation
Operation image (application)
F1
Individual
inputs
Counts input A as incremental pulses and input B as
decremental pulses. The count is incremented on the
rising edge of input A and decremented on the rising
edge of input B. If both inputs rise at the same time, the
count is not changed. The count is incremented when
input B is later than input A and decremented when input
B is earlier than input A.
Counting the number of people entering an area
Photoelectric
sensor
BCD output To
Programmable
Controller
Input A ^H
L
Input B
H
L
HOLD input
H
L
1
Count 0
3
3
2
2
2
11
Increment
Decrement
F2
This function is normally used when connected to an
Phase dif- incremental rotary encoder. The count is incremented on
ferential in- the falling edge of input B when input A is OFF. The count
puts
is decremented on the rising edge of input B when input
A is OFF.
Detecting position and speed on a semiconductor wafer conveyor line
Wafer
F3
Pulse
counting
input
Input A ^H
L
Input B
H
L
(See note 2.)
HOLD H
input L
3
2
2
1
Count
0
Counted on the rising edge of input A
Input A
H
L
HOLD H
input L
4
3
2
1
Count 0
1
1
0
6
5
E6L
Counting the number of workpieces
BCD output ^To
Programmable
Controller
Note: 1. Meaning of H and L in Display
Symbol
Input method No-voltage input
H
Short-circuit
L
Open
2. Requires at least half the minimum signal width. If there is less than half, a ±1 count error may occur.
Input Type Setting
NO: Voltage pulse high NC: Voltage pulse low
No-contact or voltage pulse input 00
01
Contact
10
11
18
Up/Down Counting Pulse Indicator K3HB-C