Omron K3MA-J User Manual
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Omron K3MA-J User Manual

K3ma series, digital panel meters, process/temperature/frequency/rate meter
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Digital Panel Meters
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Summary of Contents for Omron K3MA-J

  • Page 1 Digital Panel Meters K3MA Series User s Manual K3MA-J K3MA-L K3MA-F Process Meter Temperature Meter Frequency/Rate Meter...

  • Page 3: Preface

    PREFACE This User’s Manual provides you with information necessary. For use of the K3MA series of digital panel meters. Please read this manual carefully to ensure correct and efficient use of the product. Keep this manual handy for future reference. GENERAL PRECAUTIONS If contemplating using the product in the following environments or for the following equipment, first contact a sales representative of the company and then accept responsibility for incorporating into the...
  • Page 4 Omron’s exclusive warranty is that the Products will be free from defects in materi- Warranty als and workmanship for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron disclaims all other warranties, express or implied.
  • Page 5 It may represent the result of Omron’s test conditions, and the user must correlate it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability.

  • Page 6: Safety Precautions

    SAFETY PRECAUTIONS Signal Words In this manual, safety notices are divided into WARNING and CAUTION according to the hazard level. As both of WARNING and CAUTION notices contain important information for ensuring safety, be sure to observe them. A signal word indicating a potentially hazardous situation which, if not avoided, may result in death or serious injury.

  • Page 7: Notice

    NOTICE Observe the following precautions to ensure safety. (1) Maintain the power supply voltage within specifications. (2) Use the product within the rated load. (3) Be sure to check each terminal for correct number and polarity before connection. Incorrect or reverse connection may damage or burn out internal components of the product. (4) Be sure to tighten the terminal screws.
  • Page 8 Noise prevention (1) Install the product as far as possible from devices that generate strong high-frequency fields (such as high-frequency welders or sewing machines) or surges. (2) Attach surge absorbers or noise filters to nearby devices that generate noise (particularly, motors, transformers, solenoids, magnet coils, and other devices that have a high inductance component).
  • Page 9 For usage of the product for a long time (1) Avoid using the product in an area with temperature or humidity exceeding specifications, or subject to dew condensation. When installing the product inside a panel, be sure that the temperature around the product (not the temperature around the panel) is within the specification.

  • Page 10: Alphabetic Characters For Setting Data

    Alphabetic Characters for Setting Data This manual uses the following alphabetic characters for setting data. VIII...

  • Page 11: Table Of Contents

    CHAPTER 3 APPLICATION EXAMPLES ........3-1 3-1 Monitoring the Liquid Level (K3MA-J) ............3-2 3-2 Monitoring the Internal Pressure of a Tank (K3MA-J) ........3-4 3-3 Monitoring the Temperature of an Industrial Furnace (K3MA-L) ....3-6 3-4 Monitoring the Feed Speed of a Conveyer (K3MA-F) ........3-8 3-5 Monitoring the Rotational Speed by Monitor Output of an Inverter (K3MA-F) ..3-10...
  • Page 12 5-12 Specifying the Scaling Factor (K3MA-J) ............5-17 5-13 Specifying the Scaling Factor (K3MA-F) ............5-19 5-14 Specifying the Decimal Point Position (K3MA-J/K3MA-F) ......5-22 5-15 Specifying the Temperature Unit (K3MA-L) ..........5-23 5-16 Selecting a Comparative Output ..............5-24 5-17 Clearing All Parameters .................5-25 5-18 Specifying the Number of Measurements for Averaging .......5-26...

  • Page 13: Chapter 1 Introduction

    CHAPTER 1 INTRODUCTION This chapter provides an overview and parts name of the product. 1-1 Main Features of the K3MA ................1-2 1-2 Model Number Legend ..................1-4 1-3 I/O Circuit ......................1-5 Input Circuit Diagrams/Output Circuit Diagrams 1-4 Parts Name and Function ................1-7...

  • Page 14: Main Features Of The K3Ma

    The input signal to be measured by each type is as follows. Scaling This feature converts an input signal into a desired physical value. (Only K3MA-J/F) For example, when a pressure sensor is connected, in which a current range of 4-20 mA corresponds to a pressure range of 0-100 kPa, the readout for the input of 4 mA is converted into "0"...
  • Page 15 Comparative Output This feature compares a scaled value (measurement value) with a programmed OUT set value and produces output according to the comparison result. (Only K3MA-J-A2, K3MA-F-A2, This is useful in monitoring various systems for malfunction or determining whether and K3MA-L-C) products are within acceptance limits.

  • Page 16: Model Number Legend

    CHAPTER 1 INTRODUCTION 1-2 Model Number Legend K3MA- - AC100-240V Model name Symbol Description K3MA Digital Panel Meter K3MA Series Input type Symbol Description DC voltage/Current input Thermocouple/Resistance ther- mometer input Pulse input Output type Symbol Description None Not available Relay contact output (1c) Relay contact output (1a ×...

  • Page 17: I/O Circuit

    1-3 I/O Circuit 1-3 I/O Circuit Input Circuit Diagrams Analog Input Approx. 45 Ω Pulse Input...
  • Page 18 CHAPTER 1 INTRODUCTION Output Circuit Diagrams Contact Output Internal Block Diagram...

  • Page 19: Parts Name And Function

    1 is off. Is on when comparative output 2 is on, and off when com- (Comparative output 2) parative output 2 is off. (Only K3MA-J/K3MA-F.) Stays on while a set value is displayed or being changed, and (Set value) off at all other times.

  • Page 21: Chapter 2 Installation And Connection

    CHAPTER 2 INSTALLATION AND CONNECTION This chapter describes how to install and connect the product before turning the power 2-1 Installation ......................2-2 Dimensions/Panel Cutout Dimensions/Installation Procedure/Visibility of LCD 2-2 I/O Terminal Connections ................2-4 Terminal Arrangement /Terminal Connection...

  • Page 22: Installation

    CHAPTER 2 INSTALLATION AND CONNECTION 2-1 Installation Dimensions Panel Cutout Dimensions Fit the product into a rectangular panel cutout, put the adapter in the fixing grooves on the left and right surfaces of the rear case, and push the product until the gap between the product and the panel surface is minimized.

  • Page 23: Installation Procedure

    2-1 Installation Installation Procedure (1) Fit the product into a rectangular panel cutout for installation. (2) If you want to make the product waterproof, insert a watertight packing in the product. (3) Put the adapter in the fixing grooves on the left and right surfaces of the rear case, push it until it contacts with the panel, and fix it.

  • Page 24: I/O Terminal Connections

    CHAPTER 2 INSTALLATION AND CONNECTION 2-2 I/O Terminal Connections K3MA-J-A2/K3MA-F-A2 K3MA-L 12 V DC (±10%) 0 to 40 mA Terminal Arrangement Terminal Name Description Applicable model Operation A1-A2 Operation power supply terminals All models power supply Sensor power B5-B6 Sensor power supply terminals...

  • Page 25: Power Supply

    12 V DC (±10%) 0 to 40 mA Comparative Output Comparative output is output to terminals E1-E3. Configuration of contact point is as follows. K3MA-J-A2/K3MA-F-A2: 1a × 2 K3MA-L-C: Connect load within specifications. The electrical life of the relay is 100,000 times. K3MA-J-A2/K3MA-F-A2...
  • Page 26 Input signals to be measured. Input that can be measured by each model is as follows: Voltage/Current (K3MA-J) According to the input type, connect input devices to terminals shown below. Be sure not to exceed the absolute maximum rating even for a moment.
  • Page 27 This chapter shows some examples of product applications. 3-1 Monitoring the Liquid Level (K3MA-J) ............3-2 3-2 Monitoring the Internal Pressure of a Tank (K3MA-J) ........3-4 3-3 Monitoring the Temperature of an Industrial Furnace (K3MA-L) ....3-6 3-4 Monitoring the Feed Speed of a Conveyer (K3MA-F) ........3-8...

  • Page 28: Chapter 3 Application Examples

    (When the distance is 800-6000 mm, the output of the E4PA-LS600-M1 is 4-20 mA.) • The unit of indicated values by the K3MA-J is "m", and the values are indicated to three decimal places. • Four measurements are averaged for stable indication.
  • Page 29 3-1 Monitoring the Liquid Level (K3MA-J) Parameter Setting • The scaling is set as follows. INP1: 4.00 DSP1: 5200 INP2: 20.00 DSP2: 0 Position of decimal point: \\.\\\ • The times of measurements for averaging is set to 4. •...

  • Page 30: Monitoring The Internal Pressure Of A Tank (K3Ma-J)

    The internal pressure of the tank is measured with a pressure sensor E8AA-M10. (When the pressure is 0-980 kPa, current of 4-20 mA is generated.) • The unit of indicated values by the K3MA-J is "kPa", and the values are indi- cated to one tenth’s. •...
  • Page 31 3-2 Monitoring the Internal Pressure of a Tank (K3MA-J) Parameter Setting • The scaling is set as follows. INP1: 4.00 DSP1: 0 INP2: 20.00 DSP2: 9800 Position of decimal point: \\\\.\ • Comparative output 1 is used to generate an upper-limit signal action and the OUT upper-limit value is set to "550.0 kPa".

  • Page 32: Monitoring The Temperature Of An Industrial Furnace (K3Ma-L)

    CHAPTER 3 APPLICATION EXAMPLES 3-3 Monitoring the Temperature of an Industrial Furnace (K3MA-L) Application • The K3MA-L monitors the temperature of an industrial furnace. • The internal temperature of the furnace is measured with a thermocouple E52- (The temperature range to be measured by E52-PR is 0-1,400 °C.) •...
  • Page 33 3-3 Monitoring the Temperature of an Industrial Furnace (K3MA-L) Parameter Setting • The input type is set to 16 (R element). • The unit of temperature is set to "°C". • Comparative output 1 is used as outside-the-range signal action, and the OUT upper-limit value is set to "1000°C"...

  • Page 34: Monitoring The Feed Speed Of A Conveyer (K3Ma-F)

    CHAPTER 3 APPLICATION EXAMPLES 3-4 Monitoring the Feed Speed of a Conveyer (K3MA-F) Application • The K3MA-F monitors the feed speed of a conveyer. • Two rollers with a diameter of 0.1 m are used for the conveyer. • A gear to detect the speed of rotation is attached to the axis of one roller and its rotation is converted into pulse signals by a proximity switch E2E-X5E1.
  • Page 35 3-4 Monitoring the Feed Speed of a Conveyer (K3MA-F) Parameter Setting • The scaling is set as follows. INP: 100 DSP: 18850 Position of decimal point: \\\\.\ (Calculation of scaling value) Peripheral velocity D is expressed by the next equation. Peripheral velocity D (m/min) = f×60×d×π...

  • Page 36: Monitoring The Rotational Speed By Monitor Output Of An Inverter (K3Ma-F)

    CHAPTER 3 APPLICATION EXAMPLES 3-5 Monitoring the Rotational Speed by Monitor Output of an Inverter (K3MA-F) Application • The K3MA-F monitors the rotational speed by monitor output of an inverter. • The monitor output of the inverter produces a voltage pulse proportional to the rotational speed of the motor.
  • Page 37 Monitoring the Rotational Speed by Monitor Output of an Inverter (K3MA-F) Parameter Setting • The input type is set to 5K. • The scaling is set as follows. INP: 1440 DSP: 3600 Position of decimal point: \\\\\ (Calculation of scaling factor) Since 60 rps can be converted into 3600 rpm, the scaling is set in such a way that an input of 1440 Hz is indicated as 3600 rpm.

  • Page 39: Chapter 4 Initial Setting

    This chapter explains the flow of initial setting for each of these models. Settings related to comparative outputs can be made only for models that have comparative outputs (K3MA-J-A2, K3MA-F-A2, and K3MA-L-C). 4-1 K3MA-J (Process meter) ................4-2 4-2 K3MA-L (Temperature meter) ...............4-4...

  • Page 40: K3Ma-J (Process Meter)

    CHAPTER 4 INITIAL SETTING 4-1 K3MA-J (Process meter) The following example shows the flow of initial setting for K3MA-J. <Setting example> Input signals ranging from 0 to 10 V is scaled to readouts ranging from 0 to 500.0 rpm. When the process value (readout) reaches 450.0 rpm, comparative output 1 is produced.
  • Page 41 4-1 K3MA-J (Scaling Meter) Set the OUT1 value to "450.0" and the OUT2 value to "50.0". Make sure the main indicator displays an initial setting level parameter (the product is at the initial setting level). Then press the L key and hold it down for at least one second.

  • Page 42: K3Ma-L (Temperature Meter)

    CHAPTER 4 INITIAL SETTING 4-2 K3MA-L (Temperature meter) The following example shows the flow of initial setting for K3MA-L. <Setting example> Display the unit of the temperature of the industrial furnace with °C. Use a common type thermocouple (R element) to measure the temperature. When the process value (readout) reaches 800 °C or decreases to 1,000 °C, comparative output 1 is produced.
  • Page 43 4-2 K3MA-L (Temperature meter) Bring the product into measuring operation. The "number of measurements for averaging" and "hysteresis" can be changed if required. These parameters are to be set at the advanced-function setting level. Clear All If you are confused about how parameters have been set during initial setting, you can clear all the parameters and start all over again.

  • Page 44: K3Ma-F (Frequency/Rate Meter)

    CHAPTER 4 INITIAL SETTING 4-3 K3MA-F (Frequency/Rate meter) The following example shows the flow of initial setting for K3MA-F. <Setting example> The speed of a belt conveyer is indicated with the unit of m/min. The number of pulses per one rotation of the rotor is 4. The diameter of the rotor is 12 cm.
  • Page 45 4-3 K3MA-F (Frequency/Rate meter) Make sure the main indicator displays the current process value (the prod- uct is at the operation level). Then press the L key for at least three sec- onds. The product will move to the initial setting level. Since it is considered that, taking the application into account, input fre- quency may be around 2 Hz, may be less than 30 Hz at all events, set the parameter at the initial setting level "p-fre"...

  • Page 47: Chapter 5 Operation

    5-11 Selecting an Input-pulse Frequency (K3MA-F) ..........5-16 5-12 Specifying the Scaling Factor (K3MA-J) ............5-17 5-13 Specifying the Scaling Factor (K3MA-F) ............5-19 5-14 Specifying the Decimal Point Position (K3MA-J/K3MA-F) ......5-22 5-15 Specifying the Temperature Unit (K3MA-L) ..........5-23 5-16 Selecting a Comparative Output ..............5-24 5-17 Clearing All Parameters .................5-25...

  • Page 48: Levels

    CHAPTER 5 OPERATION 5-1 Levels The setting items of the product are grouped into five "levels" as follows. Level Function Measurement This level allows parameter setting for protec- tion against unauthorized or inadvertent key Protect operation. Access to protected levels or set- ting items is disabled.

  • Page 49: Moving Among Levels

    5-2 Moving among Levels 5-2 Moving among Levels Password [K3MA-J or K3MA-F : -0169 K3MA-L : -169 ] Moving to the Press the L+M keys simultaneously and hold them down for at least 5 seconds. The main indicator starts blinking and then the product enters the protect level. The time protect level required for moving to the protect level can be changed using the "move-to-protect-...
  • Page 50 Press the S key again to allow the password to be changed. Use the S and U keys to enter a password of "K3MA-J or K3MA-F : -0169, K3MA-L : -169". Press the M key to save the password.

  • Page 51: Parameters

    Setting items at each level are called " ". Use the M key to select a parameter. Password [K3MA-J or K3MA-F : -0169 K3MA-L : -169 ] *1 Is displayed when the parameter "OUT1 type" is "upper-limit" or "lower-limit".

  • Page 52: Set Values

    CHAPTER 5 OPERATION 5-4 Set Values Parameter setting are called "set values". Set values include those consisting of "numerics" and "alphabets". A state in which a set value is being displayed on the main indicator is called "the monitor state". A state in which a set value can be changed is called "the change state".

  • Page 53: Viewing And Changing Out Set Values

    5-5 Viewing and Changing OUT Set Values 5-5 Viewing and Changing OUT Set Values Operation level The operation level allows you to check and change OUT set values. The product continues measuring in the middle of checking and changing OUT set values.
  • Page 54 CHAPTER 5 OPERATION Available OUT set values and their indications are as follows. OUT set value Indication Description When the process value increases or OUT1 value decreases to this value, comparative output out1 1 is provided. OUT1 upper-limit out1.h When the process value falls outside-the- value range specified by these values, compara- OUT1 lower-limit...

  • Page 55: Setting/Releasing The Forced-Zero Operation (K3Ma-J)

    5-6 Setting/Releasing the Forced-zero Operation (K3MA-J) 5-6 Setting/Releasing the Forced-zero Operation level Operation (K3MA-J) Setting the forced-zero The forced-zero operation allows you to shift the current value to zero forcedly. Procedure Press the U key when a current value is displayed on the main indicator.

  • Page 56: Displaying/Resetting The Max/Min Value

    CHAPTER 5 OPERATION 5-7 Displaying/Resetting the MAX/MIN Operation level Value Displaying the MAX/MIN value The maximum value (MAX) and minimum value (MIN) of the current value can be displayed. Procedure Press the E key when a current value is displayed on the main indicator. •...

  • Page 57: Specifying The Temperature Input Correction Value (K3Ma-L)

    5-8 Specifying the Temperature Input Correction Value (K3MA-L) 5-8 Specifying the Temperature Input Adjustment level Correction Value (K3MA-L) This parameter allows you to set a correction value for temperature input. The input temperature is corrected by the quantity of set value in the whole of sensor range.

  • Page 58: Key Protect Setting

    Enable wtpt (WTPT) Disable Forced-zero This type of key operation restricts the key operation that activates or deactivates the Lockout forced-zero function. (Only K3MA-J) Key operation for Parameter Set value activating or deactivating the forced-zero function Enable zrpt (ZRPT) Disable For the factory set values, refer to the "Parameter List"...
  • Page 59 5-9 Key Protect Setting Procedure When the product is at the operation level, press Appropriate setting of the the L+M keys and hold them down for at least "move-to-protect-level time" five seconds to enter the protect level. parameter allows change the time required for •...

  • Page 60: Selecting An Input Type (K3Ma-J/K3Ma-L)

    CHAPTER 5 OPERATION 5-10 Selecting an Input Type (K3MA-J/K3MA-L) Initial setting level This parameter allows you to select an input type of the product from the following in-t for each product model. (IN-T) K3MA-J Parameter Set value Description 0-20 mA...
  • Page 61 5-10 Selecting an Input Type (K3MA-J/K3MA-L) Procedure When the product is at the operation level, press change input type the L key and hold it down for at least three initializes some parameters. seconds to enter the initial setting level.

  • Page 62: Selecting An Input-Pulse Frequency (K3Ma-F)

    CHAPTER 5 OPERATION 5-11 Selecting an Input-pulse Frequency Initial setting level (K3MA-F) This parameter allows you to select an input-pulse frequency range. The value of the p-fre parameter represents the upper limit of available ranges. (P-FRE) Parameter Set value Description Measuring range: 0.05-30 Hz p-fre (P-FRE)

  • Page 63: Specifying The Scaling Factor (K3Ma-J)

    5-12 Specifying the Scaling Factor (K3MA-J) 5-12 Specifying the Scaling Factor (K3MA-J) Initial setting level These parameters allow you to specify the scaling factor when you want to cause the inp. product to display a desired value converted from the input value.
  • Page 64 CHAPTER 5 OPERATION Press the S key again. • The current set value starts blinking, indicating the product is in the change state. Use the S and U keys to change the set value. Press the M key to go to the next parameter "dsp.1".

  • Page 65: Specifying The Scaling Factor (K3Ma-F)

    5-13 Specifying the Scaling Factor (K3MA-F) 5-13 Specifying the Scaling Factor (K3MA-F) Initial setting level These parameters allow you to specify the scaling factor when you want to cause the product to display a desired value converted from the input value (INP) Parameter Set value...
  • Page 66 CHAPTER 5 OPERATION Use the S and U key to change the set value. Press the M key to go to the next parameter. • The change in setting is saved and "dsp" will appear on the main indicator. Repeat the operations of to set the parameter "dsp"...
  • Page 67 5-13 Specifying the Scaling Factor (K3MA-F) How to Determine To minimize the scaling operation error, select such a scaling factor that permits the largest possible number of digits to be contained in scaling display values (DSP). Appropriate Scaling Factor The relationship between the scaling input and display values for input pulse frequency is represented by the following equation.

  • Page 68: Specifying The Decimal Point Position (K3Ma-J/K3Ma-F)

    CHAPTER 5 OPERATION 5-14 Specifying the Decimal Point Initial setting level Position (K3MA-J/K3MA-F) This parameter allows you to specify the decimal point position of the display value. Parameter Set value Description (DP) Readouts are given to four decimal places. \.\\\\ Readouts are given to three decimal places.

  • Page 69: Specifying The Temperature Unit (K3Ma-L)

    5-15 Specifying the Temperature Unit (K3MA-L) 5-15 Specifying the Temperature Unit Initial setting level (K3MA-L) This parameter allows you specify the temperature unit. Parameter Set value Description (D-U) °C (D-U) °F Procedure When the product is at the operation level, press the L key and hold it down for at least three seconds to enter the initial setting level.

  • Page 70: Selecting A Comparative Output

    CHAPTER 5 OPERATION 5-16 Selecting a Comparative Output Initial setting level These parameters allow you to select the comparative output 1 or output 2. Parameter Set value Description (OUT*.T) Upper limit: Upper-limit action out1.t Lower limit: Lower-limit action Outside-the-range: outside-the- out2.t hi-lo range action...

  • Page 71: Clearing All Parameters

    • "5" will appear on the level indicator, indicating the product has entered the initial setting level. Enter password "K3MA-J or K3MA-F : -0169, K3MA-L : -169" in the parameter "amov" to enter the advanced-function setting level. For details on how to move to the advanced-function setting level, refer to "5-2 Moving among Levels".

  • Page 72: Specifying The Number Of Measurements For Averaging

    • "5" will appear on the level indicator, indicating the product has entered the initial setting level. Enter password "K3MA-J or K3MA-F : -0169, K3MA-L : -169" in the parameter "amov" to enter the advanced-function setting level. For details on how to move to the advanced-function setting level, refer to "5-2 Moving among Levels".

  • Page 73: Specifying The Hysteresis

    "sys2" is not possible. • "5" will appear on the level indicator, indicating the product has entered the initial setting level. Enter password "K3MA-J or K3MA-F : -0169, K3MA-L : -169" in the parameter "amgv" to enter the advanced-function setting level. For details on how to move to advanced-function setting level, refer to "5-2 Moving among Levels".

  • Page 74: Specifying The Auto-Zero Time (K3Ma-F)

    CHAPTER 5 OPERATION 5-20 Specifying the Auto-zero Advanced-function setting level Time (K3MA-F) This parameter allows you to specify the auto-zero time. auto.z Parameter Set value Description (AUTO.Z) 0.0 to 19.9 sec: Auto-zero time auto.z 19.9 The auto-zero time is the length of time required for the product to return the readout to zero after pulse input interruption.
  • Page 75 5-20 Specifying the Auto-zero Time (K3MA-F) Use the S and U keys to change the set value. Press the M key to go to the next parameter. • The change is saved and the next parameter will appear on the main indicator. Press the L key and hold it down for at least one second to return to the initial setting level.

  • Page 76: Specifying The Start-Up Compensation Time (K3Ma-F)

    CHAPTER 5 OPERATION 5-21 Specifying the Start-up Advanced-function setting level Compensation Time (K3MA-F) This parameter allows you to specify the start-up compensation time. s-tmr Parameter Set value Description (S-TMR) 0.0 to 99.9 seconds: start-up compensation time s-tmr 99.9 The start-up compensation time is a delay between power-on of the product and the start of measurement.

  • Page 77: Specifying The Zero-Limit (K3Ma-J)

    5-22 Specifying the Zero-limit (K3MA-J) 5-22 Specifying the Zero-limit (K3MA-J) Advanced-function setting level These parameters allow you to specify the zero-limit. z-lim Parameter Set value Description (Z-LIM) OFF: Zero-limit function is not available. z-lim (Z-LIM) Zero-limit function lim-p 0 to 99: Zero-limit value...
  • Page 78 CHAPTER 5 OPERATION Use the U key to change the set value. Press the M key to go to the next parameter. • The change is saved and the next parameter "lim-p" will appear on the main indicator. (When "OFF" is selected, "lim-p" will not appear.) Press the S key to display the set value of the parameter on the main indicator.

  • Page 79: Changing The Display Color

    • "5" will appear on the main indicator, indicating the product has entered the initial setting level. Enter password "K3MA-J or K3MA-F : -0169, K3MA-L : -169" in parameter "amov" to enter the advanced-function setting level. For details on how to move to the advanced-function setting level, refer to "5-2 Moving among Levels".

  • Page 80: Changing The Display Auto-Return Time

    • "5" will appear on the level indicator, indicating the product has entered the initial setting level. Enter password "K3MA-J or K3MA-F : -0169, K3MA-L : -169" in parameter "amov" to enter the advanced-function setting level. For details on how to move to the advanced-function setting level, refer to "5-2 Moving among Levels".

  • Page 81: Changing The Move-To-Protect-Level Time

    "1". • "5" will appear on the level indicator, indicating the product has entered the initial setting level. Enter password "K3MA-J or K3MA-F : -0169, K3MA-L : -169" in parameter "amov" to enter the advanced-function setting level. For details on how to move to the advanced-function setting level, refer to "5-2 Moving among Levels".
  • Page 82 CHAPTER 5 OPERATION Use the S and U keys to change the set value. Press the M key to go to the next parameter. • The change is saved. Press the L key and hold it down for at least one second to return to the initial setting level.
  • Page 83 This chapter describes available functions of the product including measurement and average processing. Settings related to comparative outputs can be made only for models that have comparative outputs (K3MA-J-A2, K3MA-F-A2, and K3MA-L-C). 6-1 Measurement (K3MA-J) ................6-2 Voltage/Current Input/Scaling/Zero-limit/Forced-zero 6-2 Measurement (K3MA-L) ................6-5 Temperature Input/Temperature Input Correction 6-3 Measurement (K3MA-F) ................6-6...

  • Page 84: Chapter 6 Function Description

    CHAPTER 6 FUNCTION DESCRIPTION 6-1 Measurement (K3MA-J) Voltage/Current Input K3MA-J operates as a Process meter. Measurements are made as follows. • Input signals are sampled in synchronization with internal timings generated at intervals of 250 ms. • The input signal is scaled and the process value is updated according to the scal- ing result.

  • Page 85: Measurement (K3Ma-J)

    6-1 Measurement (K3MA-J) dsp: Process value corresponding to inp Enter INP1, DSP1, INP2 and DSP2 to specify the scaling factor. This way of specifying the scaling factor permits flexible scaling; inverse scaling where the process value decreases with the increasing input value is also possible.
  • Page 86 CHAPTER 6 FUNCTION DESCRIPTION Forced-zero This feature shifts a process value to zero forcedly, and can be used to evaluate and display the deviation of a process value from a reference value. The forced-zero function can be activated by using U key on the front panel when a current value is displayed on the main indicator.

  • Page 87: Measurement (K3Ma-L)

    6-2 Measurement (K3MA-L) 6-2 Measurement (K3MA-L) Temperature Input K3MA-L operates as a Temperature meter. Measurements are made as follows. • Input signals are sampled in synchronization with internal timings generated at intervals of 500 ms. • The input signal is scaled according to the sensor type and converted into tem- perature, and the process value is updated.

  • Page 88: Measurement (K3Ma-F)

    CHAPTER 6 FUNCTION DESCRIPTION 6-3 Measurement (K3MA-F) Pulse Input K3MA-F operates as a Frequency/Rate meter. Measurements are made as follows. • When the input pulse frequency is 4 Hz or more, it is measured in synchroniza- tion with internal timings generated at intervals of 250 ms. •...
  • Page 89 6-3 Measurement (K3MA-F) Scaling Scaling is to convert sampled input values to process values in sequence using a predetermined scaling formula. Scaling allows conversion of input values to process values in easy-to-understand notation. The scaling formula for pulse input is as follows. Where;...
  • Page 90 CHAPTER 6 FUNCTION DESCRIPTION Conversion of the input pulse frequency to the rotational speed involves the following scaling formula. Where; Number of pulses per rotation inp: Input pulse frequency (Hz) dsp: Rotational speed (r/min) Unit conversion (r/s): (r/min)÷60 Conversion of the input pulse frequency to the circumferential speed involves the following scaling formula.
  • Page 91 6-3 Measurement (K3MA-F) Start-up Compensation Timer K3MA-F has a start-up compensation timer that prevents measurement for a predetermined time after power-on. This function is useful in keeping the product in wait state until a rotor reaches the steady state speed when the product and the rotator have been powered on simultaneously.

  • Page 92: Average Processing

    The following shows the relationship between the number of measurements for averaging and the interval at which the process value and comparative output are updated. Update interval Number of K3MA-F measurements K3MA-J K3MA-L for averaging Input pulse Input pulse 4 Hz and more Less than 4 Hz...

  • Page 93: Comparative Output

    6-5 Comparative Output 6-5 Comparative Output Comparative outputs 1 and 2 can be produced as three types of signal actions: upper- limit signal action, lower-limit signal action, and outside-the-range signal action. Upper-limit Action Comparative output turns on when process value reaches the OUT set value.

  • Page 94: Hysteresis

    CHAPTER 6 FUNCTION DESCRIPTION 6-6 Hysteresis In this manual, hysteresis refers to a range that is provided above or below an OUT set value to avoid comparative output from turning off unless the process value falls outside the range, once the comparative output has turned on at the OUT set value. Specifying the hysteresis suppresses chattering of comparative output caused by fluctuations of the process value in the vicinity of OUT set value.

  • Page 95: Display Color Change

    6-7 Display Color Change 6-7 Display Color Change The display color of the main indicator can be changed. This feature can be used to vary the display color of the gang-mounted products depending on their importance or to greater prominence to indication on the main indicator of certain products in an emergency.

  • Page 97: Chapter 7 Troubleshooting Guide

    CHAPTER 7 TROUBLESHOOTING GUIDE This chapter describes malfunctions and troubles of the product, and how to deal with these problems. 7-1 Indication of Error ..................7-2 7-2 Troubleshooting Table ..................7-3...

  • Page 98: Indication Of Error

    Contact a branch office of the company. The current range of 4 to 20 mA is selected At the initial setting level, specify an for K3MA-J in the factory. Therefore, when appropriate input type in accordance with the product is powered on for the first time the application.

  • Page 99: Troubleshooting Table

    (K3MA-F) long. In K3MA-J, the startup compensation time can be set to up to 99 seconds. Comparative output does not Check if the set value of Set this set value to an...

  • Page 101: Appendix

    APPENDIX Specifications ....................A-2 Parameter List ....................A-5...

  • Page 102: Specifications

    Storage temperature -25 to 65°C (with no condensation or icing) Altitude 2,000 m max. Weight Approximately 200g *[J/L] / 220g *[F] (main body) *[J]:K3MA-J, [L]:K3MA-L, [F]:K3MA-F Reley Contact Output (A2 Type) Item Resistive load(cosφ=1) Inductive load(cosφ=0.4, L/R=7ms) Rated load 250VAC 5A, 30VDC 5A 250VAC 1A, 30VDC 1A Min.
  • Page 103 1 kV line to line (I/O signal line) Immunity Surge: EN61000-4-5: 1 kV (power line) 2 kV line to ground (power line) Immunity Conducted Disturbance: EN61000-4-6: 3 V (0.15 to 80 MHz) Immunity Voltage Dip/Interrupting:EN61000-4-11: 0.5 cycle, 0, 180°, 100% (rated voltage) *[J]:K3MA-J, [L]:K3MA-L, [F]:K3MA-F...
  • Page 104 APPENDIX Input Characteristics K3MA-J Input type Setting range Control range Measuring accuracy 0-20 0 to 20mA -2 to 22mA 4-20 4 to 20mA 2 to 22mA ±0.1%FS±1digit max. at 23°C±3°C 0 to 5V -0.5 to 5,5V 1 to 5V 0.5 to 5.5V ±5V...

  • Page 105: Parameter List

    APPENDIX Parameter List Use this list to note your set values. K3MA-J Level Parameter Indication Setting range Default Unit value Operation/adjustment lockouts oapt Setting level lockout icpt Protect Setting change lockout wtpt off/on Forced-zero lockout zrpt off/on OUT1 Value out1...
  • Page 106 APPENDIX K3MA-L Level Parameter Indication Setting range Default Unit value Operation/adjustment oapt lockouts Protect Setting level lockout icpt Setting change lockout wtpt off/on OUT1 value out1 :999-9999 9999 Operation OUT1 upper-limit value out!h :999-9999 9999 OUT1 lower-limit value out!l :999-9999 :999 Temperature input correc- Adjustment...
  • Page 107 APPENDIX K3MA-F Level Parameter Indication Setting range Default Unit value Operation/adjustment lockouts oapt Protect Setting level lockout icpt Setting change lockout wtpt off/on OUT1 Value out1 :9999-99999 99999 OUT1 upper-limit value out!h :9999-99999 99999 OUT1 lower-limit value out!l :9999-99999 :9999 Operation OUT2 value out2...
  • Page 109 INDEX initial setting............4-1,5-2 initial setting level ........... 5-3 absolute maximum rating........2-6 initialize all parameters ......... 5-25 adapter..............2-2 input circuit diagrams..........1-5 adjustment ............... 5-2 input range over ............4-2 adjustment level ............5-3 input type............... 5-14 advanced-function setting ........5-2 installation ...............
  • Page 110 OUT1 value............. 5-8 selecting a comparative output......5-24 OUT2 lower-limit value.......... 5-8 set values ..............5-6 OUT2 upper-limit value.......... 5-8 setting change lockout........... 5-12 OUT2 value............. 5-8 setting level lockout ..........5-12 output circuit diagrams ........... 1-6 shift................1-3 outside-the-range signal action ....... 3-7,6-11 spike noise.............
  • Page 112 The Netherlands Hoffman Estates, IL 60169 U.S.A. Tel: (31)2356-81-300/Fax: (31)2356-81-388 Tel: (1) 847-843-7900/Fax: (1) 847-843-7787 © OMRON Corporation 2001-2018 All Rights Reserved. OMRON (CHINA) CO., LTD. OMRON ASIA PACIFIC PTE. LTD. In the interest of product improvement, Room 2211, Bank of China Tower, No.

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