K33L1A Omron, K33L1A Datasheet - Page 7

• Manufacturer Part Number: K33L1A
• Description: OPTION BOARD, SENSOR, PS+4-20MA
• Manufacturer: Omron

Specifications of K33L1A

• Accessory Type: Sensor Power Supply / Output Board
• Voltage Rating: 12VDC
• Current Rating: 80mA
• Svhc: No SVHC (15-Dec-2010)
• For Use With: K3HB-R Rotary Pulse Indicator, K3HB-P Timer Interval Indicator
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Operation
■ Functions (Operating Modes)
F1 to F6
Functions F1 to F6 provide rpm/circumferential speed and other calculation displays by measuring continuous pulses (frequencies).
Example
Rpm/circumferential
speed
Absolute ratio
Error ratio
Rotational difference
Flow rate ratio
Passing time
F1
Rpm/cir-
cumferen-
tial speed/
Instanta-
neous
flowrate
Function
Function name
Measures frequency for input A and displays the
rotation (rpm) or circumferential speed proportional to
the input frequency.
Rotation
speed
Frequency (of
input pulse)
Circumferenti
al speed
Instantaneous
flowrate
N = Pulses per rotation
Calculation Display
d = Circumferential length per rotation
processing stage
Length of
f1
f2
f3
f4
f5
f6
Function No.
m/min
mm/s
km/h
l/min
cm/s
unit
rpm
kHz
m/s
rps
Hz
l/h
Operation
Check the output
specifications of the input
device and calculate the
prescale value from the
following equation:
Display value D = ƒa
Prescale value ( )
1000 d/60 N
100 d/60 N
0.06 d/N
1/60000
1/60 N
d/60 N
F1:
F2 to F5: Displays the calculation result for two rotation (rpm) speeds.
F6:
The basic principle used by the Digital Indicator to calculate the rotation speed (rpm) display is
to count the ON/OFF time (T) for input sensor or other device inputs using the internal system
clock, and then automatically calculate the frequency. This frequency (f) is multiplied by 60 and
displayed as the rotation (rpm) speed.
Input sensor or other input pulse ON/OFF time (T) =
• Rotation speed (rpm) = f
• Circumferential speed = Roll circumference
• Passing time=
These calculations are automatically made internally and displayed whenever any input pulse
is received.
1/60
1/N
d/N
Displays rotation (rpm) or circumferential speed for one input.
Displays the passing time calculated from the circumferential speed and the length
of the processing stage for one input.
60
Length of processing stage
Circumferential speed
Measuring roller winding speed
60
Rotary Pulse Indicator
Operation image (application)
Rotation speed (rpm)
Measuring motor speed
(for product testing)
T
K3HB-R
Frequency (f) =
judgment
OK/NG
1
T
H
PASS
L
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