Omron K3MA-F Datasheet
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Omron K3MA-F Datasheet

Omron K3MA-F Datasheet

Frequency/rate meter
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See also: User Manual
Frequency/Rate Meter
K3MA-F
Highly Visible LCD Display with 2-color (Red
and Green) LEDs
• Contact, NPN, PNP, or voltage pulse input.
• Front-panel key operation for easy setting.
• Average processing function suppresses flicker.
• Includes scaling, auto-zero time, startup compensation time
functions.
• Easy confirmation of max/min display.
• Short 80-mm depth (measured from edge of face plate).
• Finger protective cover (standard equipment) guards against
electric shock.
• Water- and dust-proof NEMA4X (IP66 equivalent) front panel.
• Recognized to U.S. and Canadian requirements under the
Component Recognition Program of UL.
• CE marking.

Model Number Structure

■ Model Number Legend
:
K3MA-F-@
1
2
3
1. Input Type
F:
Rotary pulse
2. Output Type
None: No output
A2:
2 relay contact outputs (SPST-NO)

Ordering Information

■ List of Models
Input type
Rotary pulse
■ Accessories (Order Separately)
Name
Splash-proof Soft Cover
Hard Cover
Supply voltage
100 to 240 VAC
24 VAC/VDC
Shape
3. Supply Voltage
100-240VAC: 100 to 240 VAC
24VAC/VDC: 24 VAC/VDC
Output
None
2 relay contact outputs (SPST-NO)
None
2 relay contact outputs (SPST-NO)
K32-49SC
K32-49HC
Frequency/Rate Meter
Model
K3MA-F 100-240VAC
K3MA-F-A2 100-240VAC
K3MA-F 24VAC/VDC
K3MA-F-A2 24VAC/VDC
Model
K3MA-F
1

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Summary of Contents for Omron K3MA-F

  • Page 1: Model Number Structure

    • Includes scaling, auto-zero time, startup compensation time functions. • Easy confirmation of max/min display. • Short 80-mm depth (measured from edge of face plate). • Finger protective cover (standard equipment) guards against electric shock. • Water- and dust-proof NEMA4X (IP66 equivalent) front panel.

  • Page 2: Specifications

    (100 m/s for relay contact outputs) 3 times each on 3 axes, 6 directions. Operating: − 10 ° C to 55 ° C (with no condensation or icing) Ambient temperature − 25 ° C to 65 ° C (with no condensation or icing)
  • Page 3 Input signal No-voltage contact (30 Hz max., ON/OFF pulse width: 15 ms min.) Voltage pulse (5 kHz max., ON/OFF pulse width: 90 µ s min., ON voltage: 4.5 to 30 V/OFF voltage: 0 to 2 V) Open collector (5 kHz max., ON/OFF pulse width 90 µ s min.)

  • Page 4: Block Diagram

    (No polarity for 24-VDC Input connection.) terminals 12 V 40 mA External power supply − Note: Refer to Input Circuits on page 5. Terminal No. Name Description Operation power Connects the operation power supply. A1 - A2 Pulse input No-voltage contact/open collector input...
  • Page 5 200 Ω 1 kΩ Pulse detection circuit NPN, contact input 12 V Voltage PNP, voltage pulse input detection circuit Voltage pulse 10 kΩ The negative pole of the sensor power supply and COM are connected internally. − K3MA-F Frequency/Rate Meter...

  • Page 6: Main Functions

    Note: The default value is “0 to 5 kHz (5k).” Scaling When the desired display value is set for a corresponding input, the value will be displayed on a line between two points determining the zero point. Parameter Setting value...

  • Page 7: Convenient Functions

    Convenient Functions Scaling Teach The parameter (inp) for the K3MA-F’s initial setting level can be set using actual input values with the teaching function. After displaying the pa- rameter, the actual input settings can be made with the following operation.
  • Page 8 Changing the Display Color Average processing stabilizes the display by minimizing any pulsat- The color of the value displayed can be set to either red or green. For ing or flicker caused by fluctuations in the pulse width of sensor input comparative output models, the display color can be set to change or by eccentricity in rotating shafts.
  • Page 9 Used to allow the main indicator to indicate parameters sequentially. 7. Shift Key Used to enable a set value to be changed. When changing a set value, this key is used to move along the digits. 8. Up Key Used to change a set value. Used to set or clear a forced-zero function when a measurement value is being displayed.

  • Page 10: Application Examples

    Voltage pulse Gear Motor Proximity sensor Note: If the monitor output from the inverter is analog, • Monitoring line speed for a reflow fur - • Mixers for resin molding such as 0 to 10 V, use the K3MA-J. nace •...

  • Page 11: Wiring Precautions

    2. For a waterproof installation, insert the rubber gasket onto the body of the K3MA-F. 3. Fit the adaptor into the grooves on the left and right sides of the rear case, then push it until it contacts the panel to secure the K3MA-F.

  • Page 12: General Precautions

    Do not 3. Check each terminal for correct number and polarity before con- route the wiring for the product in parallel with or tie it in a bundle necting it. Incorrect or reverse connections may damage or burn with power lines.

  • Page 13: Operating Procedures

    ■ Levels “Level” refers to a grouping of parameters. The following table lists the operations that are possible in each of the levels, and the diagram tells how to move between levels. There are some parameters that are not displayed for certain models.
  • Page 14 ■ Parameters Note: 1. Some parameters are not displayed for certain models. 2. The K3MA-F will stop measurement if the level is changed to the initial setting level or the advanced-function setting level. 3. If the input range is changed, some parameters are set to default values. Therefore, set the input range first.
  • Page 15 Red (green) Limits MODE MODE Move to Display advanced- auto-return − − − function time setting level Unit: s MODE MODE Move-to- − − protect- level time Unit: s MODE Settings displayed in reversed colors are initial settings. K3MA-F Frequency/Rate Meter...

  • Page 16: Initial Settings

    Allowed Prohibited • Initial setting is 0. Select the pulse frequency for measurement. • This is not displayed on models with no comparative output func- Set the scaling values and OUT type as required. tion. Setting Level Lockouts Restricts shifting to initial setting level or advanced-function setting If required, shift to the advanced-function setting level to set level.

  • Page 17: Troubleshooting

    ■ Troubleshooting When an error occurs, error details will be displayed on the main indicator. Confirm the error from the main indicator and take the appropriate coun- termeasures. Level...

  • Page 18: Warranty And Limitations Of Liability

    Warranty and Limitations of Liability ■ WARRANTY OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS.
  • Page 19 K3MA-F Frequency/Rate Meter...
  • Page 20 ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. Cat. No. N107-E1-03A In the interest of product improvement, specifications are subject to change without notice. OMRON Corporation...

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