K3NR Datasheet, PDF (25/28 Pages) List of Unclassifed Manufacturers – High-speed, Intelligent Interface Modules

I Operating Modes
The K3NR provides 7 operating modes for converting input pulses to display values. The mode can be selected via key operations on the front
panel.
Basically, the operating modes can be divided into the following two groups.
Operating Modes 1 to 6
Operating Mode 7
Rotational speed and other displays are based on calculations for
continuous pulses (frequency).
Example
Processing
Conveyor line
The number of pulses is measured. Each pulse is counted as 1 count
up to a maximum of 99,999 counts. Decrementing the count is not
possible. Although the limits of the display enables displaying only up
to 99,999 counts, prescaling can be used to count up to
4 gigacounts.
Operating mode no.
Use
07
Pulse counting
Operating mode no.
Use
01
Rotational/Circumferential speed
02
Absolute ratio
03
Error ratio
04
Rotation difference
05
Flow rate ratio
06
Passing time
Mode No. 1:
Rotational or circumferential speed display for 1
input
Mode No. 2 to 5: Display of calculations for two rotational speeds
Mode No. 6:
Passing time display based on 1 input frequency
and processing length
Basic Principles of Rotational Speed Displays
The ON/OFF time (T) of a sensor input or other input is measured
with the internal system clock to automatically calculate the fre-
quency. This frequency is multiplied by 60 and displayed as a rota-
tional speed.
The count is reset by shorting terminals 6 and 7 (RESET ON) or by
pressing the RESET/TEACH Key on the front panel
Because only incrementing is possible, the L and LL comparative
outputs turn ON when the measured values exceed set values.
Input sensor pulse ON/OFF time (T) =
Frequency (f) = 1/T
T
Rotational speed (rpm) = f x 60
Circumferential speed = Circumference x Rotational speed
Passing time = Processing length/Circumferential speed
Automatic measuring by the K3NR is enabled simply by providing an
input pulse.
Operating Mode 1: Rotational/Circumferential Speed
The frequency of input A is calculated and displayed as a rotational
or circumferential speed.
Units: rpm; rps; rph; Hz; kHz; mm/s; m/s; m/min; km/h; l/min; l/h;
etc.
Application Example
Measuring Roller
Winding Speed
Measuring Motor Speed
(for Product Testing)
H
PASS
L
Pass/fail
determination
Frequency/Rate Meter K3NR K-153