Unipulse F340A Operation Manual
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Unipulse F340A Operation Manual

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F340A
DIGITAL INDICATOR
　　　　　　　　　　　
　　　　　
OPERATION MANUAL
01 Aug. 2017
Rev. 1.44

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Summary of Contents for Unipulse F340A

  • Page 1 F340A DIGITAL INDICATOR 　　　　　　　　　　　 　　　　　 OPERATION MANUAL 01 Aug. 2017 Rev. 1.44...
  • Page 2 ● Prepare a safety circuit outside the F340A so that the entire system functions safely if the F340A fails or malfunctions. ● Be sure to contact our sales representative before use if the F340A will be used as follows: - if the indicator is used in an environment not described in the operation manual;...
  • Page 3 Warning Events that may cause death or severe injury to personnel in the event of misuse. Wiring warning ● Do not connect commercial power supply directly to a signal I/O terminal. ● Be sure to perform class D grounding when installing the main unit ●...
  • Page 4 ● Be sure to have a time interval of five seconds or longer between turning power on and off. ● Use after warming up for 30 minutes or longer following the startup of power supply. ● Protective performance of the F340A may be lost if it is not used as specified. ● Care - Unplug the power supply during maintenance.
  • Page 5 Transportation precautions ● Although the F340A package is designed to absorb shock sufficiently during shipping, re- use of the same packaging materials may damage the indicator when shock is encountered. When sending this product to us for repair and so on, package it using sufficient shock- absorbing materials.

  • Page 6: Table Of Contents

    CONTENTS CONTENTS 1． FUNCTIONAL DESCRIPTIONS ..............1 1-1． Front Panel ..................1 1-1-1． Status Display ................1 1-1-2． Numerical Display ..............2 1-1-3． Setting Key Pad ................. 2 1-2． Rear Panel ................... 4 1-2-1． Protective Ground ..............4 1-2-2． Frame Ground ................4 1-2-3．...
  • Page 7 CONTENTS 5-2． High / Low Limit Comparator Mode ........... 32 5-3． Hysteresis ..................33 5-4． Digital Offset ..................35 5-5． Near Zero ................... 36 5-6． Digital Filter ..................37 5-7． Analog Filter ..................38 5-8． Motion Detect ..................39 5-9． Zero Tracking ..................41 5-10．...
  • Page 8 12-3． Other Error Display ................77 13． SELF-CHECK FUNCTION AND INITIALIZATION ........78 13-1． Self-Check ..................78 13-2． Initialization ..................80 13-3． F340A Block Diagram ..............82 14． DIMENSIONS ................... 83 15． SPECIFICATIONS ..................84 15-1． Analog Section ................. 84 15-2．...
  • Page 9 CONTENTS 15-6． Option ....................85 15-7． General Specifications ..............86 15-8． Accessories ..................87 16． CONFORMITY TO EC DIRECTIVES ............88 VIII...

  • Page 10: 1． Functional Descriptions

    GAIN SHIFT 1-1-1. Status Display The F340A status is indicated. Setting items are indicated when setting. This LED turns on when the indicated value is larger than the set value of the high limit (indicated value > high limit) Operation of the high limit relay is on.

  • Page 11: Numerical Display

    1.FUNCTIONAL DESCRIPTIONS 1-1-2. Numerical Display The three types of display are provided. 1) Indicated value 2) Set value 3) Overflow display - Minus overflow of the A/D converter (-LOAD) - Plus overflow of the A/D converter (LOAD) - Indicated value overflowed (indicated value < -19999) (OFL1) - Indicated value overflowed (indicated value >...
  • Page 12 1.FUNCTIONAL DESCRIPTIONS HOLD Starts the Hold function. To cancel the Hold function, press HOLD again. Forcibly resets the indicated value to zero (digital zero function). ZERO When the calibration LOCK is turned off, the digital zero function is not activated using this key.External DZ input is also disabled. Cancels setting and returns to the indicated value display.

  • Page 13: Rear Panel

    1.FUNCTIONAL DESCRIPTIONS 1-2. Rear Panel AC Input Terminal Block Signal Input/Output Terminal Block Option Slot Frame Ground Protective Ground 1-2-1. Protective Ground Be sure to ground the protective ground terminal to prevent electric shocks. 1-2-2. Frame Ground Please ground the frame ground terminal to prevent failures due to static electricity. (The frame and the frame ground terminal are conducted.) It may be better to remove depending on the environment of the installation location.

  • Page 14: Signal Input/Output Terminal Block

    ＋ SIG SHIELD 1・2 : Two-wire serial interface (SI/F) for connecting printers and external display from UNIPULSE. This interface has no polarity and can connect up to three external devices. Use parallel two-core cables or captire cables. 3 ～ 6: Output terminals of the high/low limit relays.
  • Page 15 1.FUNCTIONAL DESCRIPTIONS 8・9: Terminals for inputting digital zero signals. Available in LOCK ON only. 9 ..DZ input 8 ..COM 10・11: Terminal for output of a voltage proportional to the sensor input. Output voltage is approx. 2V per 1mV/V (sensor input). 10 ..

  • Page 16: 2． Connection

    2.CONNECTION 2. CONNECTION 2-1. Connecting to Cage Clamp Terminal Block 1. Strip the casing 0.2in (6mm) on the cable to be connected. 0.2in 2. Twist the bare wire to fit the terminal hole. 3. Insert the supplied screwdriver into the upper hole and lift upward. 4.

  • Page 17: Connecting Strain Gauge Sensor

    2.CONNECTION 2-2. Connecting Strain Gauge Sensor - 4-wire sensor (+EXC) ＋ IN (-SIG) － OUT ＋ OUT F340A (-EXC) － IN (+SIG) (SHIELD) - 6-wire sensor ＋ IN (+EXC) (-SIG) － OUT ＋ OUT F340A (-EXC) － IN (+SIG) (SHIELD)

  • Page 18: Connecting Power Input Terminal

    Connect the positive (+) side of the power source to the red screw side of the terminal block on the back of the F340A, and its negative (-) side to the black screw side. The input voltage is 12V-24V 1) Make sure that no power is applied.

  • Page 19: Connecting Si/F

    Also, never input an AC power source. Doing so will cause a failure. 2-4. Connecting SI/F Two-wire serial interface (SI/F) for connecting printers and external display from UNIPULSE. This interface has no polarity and can connect up to three external devices.

  • Page 20: Connecting High / Low Limit Relays

    2-5. Connecting High / Low Limit Relays - Connecting External Load [ High limit relay ] AC Power Supply Spark Killer F340A Varistor Rating is 250V AC and 0.5A. Connect a spark killer as near the load as possible. Load [ Low limit relay ] ３...

  • Page 21: Connecting Hold And Digital Zero Signals

    2.CONNECTION 2-6. Connecting Hold and Digital Zero Signals - Equivalent circuit (input) [ Hold input ] F340A Inside ← Outside → Toggle relay switch +12V Relay Contact Ic=Approx.8mA Transistor Push switch TTL open collect output [ DZ input ] (ON when IN is ’H) Connect 9 and 8.

  • Page 22: Connecting Analog Monitor Output (Vol Out)

    2.CONNECTION 2-7. Connecting Analog Monitor Output (VOL OUT) Terminal for out put of a voltage proportional to the sensor input . Output voltage is approx. 2V per 1mV/V(sensor input). F340A ← Inside Outside → ＋ External device － Load resistance...

  • Page 23: 3． Setting Mode Configuration

    3.SETTING MODE CONFIGURATION 3. SETTING MODE CONFIGURATION 3-1. Selection of Setting Items Setting Mode 1 Setting Mode 2 DOWN DOWN High Limit Digital Filter (P.30) (P.37) DOWN DOWN (P.30) (P.38) Low Limit Analog Filter High/LowLlimit Motion Detect (P.32) (P.39) Comparison Mode (time) Motion Detect (P.39)
  • Page 24 3.SETTING MODE CONFIGURATION Setting Mode3 Setting Mode4 DOWN DOWN LOCK BCD Data (P.59) Update Rate (P.47) DOWN DOWN Scale (P.48) Division (P.62) RS-232C Display (P.49) Frequency (P.74) D/A Zero Setting (P.50) Excitation Voltage (P.74) D/A Full Scale Setting...

  • Page 25: Display Of Setting Items

    3.SETTING MODE CONFIGURATION 3-2. Display of Setting Items Blnking - Mode1 (1) High Limit PEAK HOLD (2) Low Limit PEAK HOLD (3) High/Low Limit Comparison Mode PEAK HOLD (4) Hysteresis PEAK HOLD (5) Digital Offset PEAK HOLD (6) Near Zero PEAK HOLD - Mode2...

  • Page 26: List Of Values

    3.SETTING MODE CONFIGURATION - Mode3 (1) LOCK PEAK HOLD (2) Scale Division PEAK HOLD (3) Display Frequency PEAK HOLD (4) Excitation Voltage PEAK HOLD - Mode4 (1) BCD Data Update Rate PEAK HOLD (2) RS-232C PEAK HOLD (3) D/A Zero Setting PEAK HOLD (4) D/A Full Scale Setting...
  • Page 27 3.SETTING MODE CONFIGURATION Setting Mode2 Item Default Set Value Calibration LOCK LOCK Digital Filter ○ Analog Filter ○ Motion Detect (time) ○ Motion Detect (band) ○ Zero Tracking (time) ○ Zero Tracking (band) ○ Hold Mode ○ Automatic Printing ○ Hold Value Printing ○...

  • Page 28: Setting Procedure

    3.SETTING MODE CONFIGURATION 3-4. Setting Procedure “F1” of setting Mode1 is displayed. “F2” of setting Mode2 “F3” of setting Mode3 “F4” of setting Mode4 is displayed. is displayed. is displayed. DOWN DOWN DOWN DOWN Select a Select a Select a Select a setting item.

  • Page 29: 4． Calibration

    4.CALIBRATION 4. CALIBRATION “Calibration” refers to an operation whereby matching between the F340A and a strain gauge sensor is obtained. The F340A uses the two calibration methods as described below. ◇ Equivalent Input Calibration This approach uses no actual loads but key entry of the rated output value of the strain gauge sensor (mV/V) and the rating value (value to be displayed).

  • Page 30: Equivalent Input Calibration Procedure

    4.CALIBRATION ◇ Actual Load Calibration This approach provides calibration by applying an actual load to the strain gauge sensor and inputting the actual load value. This calibration is without little errors and more correct. F340A Actual load Strain gauge sensor Indicated value 4-1.
  • Page 31 4.CALIBRATION - Releasing Calibration LOCK Releasing Calibration LOCK 1)Select setting mode 3. 2)Select calibration lock. DOWN Calibration LOCK 1: ON 0: OFF DOWN key to set the calibration lock of OFF (0), then use key to validate the setting. To return to the indicated value display, press key.
  • Page 32 4.CALIBRATION - Setting of Scale Division (Omissible if no change is needed) Setting of Scale Division 1) Select setting mode 3. 2) Set the scale division. DOWN Press twice. Scale Division (001 to 100) DOWN keys to set the scale division, then use key to validate the setting.
  • Page 33 4.CALIBRATION - Equivalent Input Calibration Equivalent Input Calibration 1) Start the equivalent input calibration. Example of a sensor having the output value of 2.010mV/V for rated 100.00kgf (N) SHIFT Rated Output Value (0.001 to 9.999mV/V) 2) Set the rated output value of the sensor. DOWN keys to set the rated output value,...
  • Page 34 4.CALIBRATION - Calibration LOCK CalibrationLOCK 1) Select setting mode 3. 2) Select calibration lock. DOWN Calibration LOCK 1: ON 0: OFF DOWN 3) Use key to set the calibration lock of ON (1), then use key to validate the setting. To return to the indicated value display, press key.

  • Page 35: Actual Load Calibration

    4.CALIBRATION 4-2. Actual Load Calibration The actual load calibration uses the following procedure Releasing Calibration LOCK Release the calibration LOCK that inhibits calibration. Set the minimum value of the digital change desired. Setting of Scale Division (omissible if no desired value is present) Set the zero point of the strain gauge sensor.
  • Page 36 4.CALIBRATION - Setting of Scale Division (omissible if no change is needed) Setting of Scale Division 1) Select setting mode 3. 2) Set the scale division. DOWN Press twice. Scale Division (001to 100) DOWN keys to set the scale division, then use key to validate the setting.
  • Page 37 4.CALIBRATION - Actual Load Calibration Actual Load Calibration 1) Apply an actual load to the sensor and set the actual load value. Indicated Value of (00000 to 19999) Actual Load Value DOWN keys to set the actual load value, then key to validate the setting.
  • Page 38 4.CALIBRATION - Calibration LOCK Calibration LOCK 1) Select setting mode 3. 2) Select calibration lock. DOWN Calibration LOCK 1: ON 0: OFF DOWN 3) Use key to set the calibration lock of ON (1), then use key to validate the setting. To return to the indicated value display, press key.

  • Page 39: 5． Setting Of Functions

    5.SETTING OF FUNCTIONS 5. SETTING OF FUNCTIONS 5-1. High /Low Limit Value High / Low limit value are functions whereby the high output is turned on when the indicated value exceeds the high / low output is turned on when it drops below the low limit. [ HIGH/LOW output conditions ] HIGH : Indicated value >...
  • Page 40 5.SETTING OF FUNCTIONS Setting of High/Low Limit Value 1) Select setting mode 1. 2) Select high limit value. DOWN High Limit Value (00000 to±19999) DOWN keys to set the high limit value. SHIFT Press key to place a minus sign. press key to validate the setting.

  • Page 41: High / Low Limit Comparator Mode

    5.SETTING OF FUNCTIONS 5-2. High / Low Limit Comparator Mode High / Low Limit Comparator Mode 1)Select setting mode 1. 2)Select high / low limit comparator mode. DOWN Press three times. High / Low Limit Comparator Mode Comparison is made at stable status except for near zero.

  • Page 42: Hysteresis

    5.SETTING OF FUNCTIONS 5-3. Hysteresis The Hysteresis function provides a range of high/low limit comparator off. Usually the high limit comparator is turned on when the indicated value is above the high limit value and turned off when below. If you set a hysteresis range, the comparator is turned off when the indicated value is below the high limit value by the hysteresis setting.
  • Page 43 5.SETTING OF FUNCTIONS Setting of Hysteresis 1) Select setting mode 1. 2) Select hysteresis. DOWN Press four times. Hysteresis (0000 to 9999) DOWN keys to set the hysteresis range, then use key to validate the setting. To return to the indicated value display, press key.

  • Page 44: Digital Offset

    5.SETTING OF FUNCTIONS 5-4. Digital Offset This function subtracts a set value from the indicated value. If you make digital offset , the value which is obtained by subtracting the set value from the indicated value will be displayed. This is convenient when you cannot obtain zero by unloading the equipment for some reason or when you want to give offset.

  • Page 45: Near Zero

    5.SETTING OF FUNCTIONS 5-5. Near Zero The Near Zero function detects that the indicated value is near zero. Near Zero ON/OFF is closely related to Automatic Printing and High and Low Limit Comparator Mode. For details, see High and Low Limit Comparator Mode on page 33 and Automatic Printing on page 46.

  • Page 46: Digital Filter

    5.SETTING OF FUNCTIONS 5-6. Digital Filter This function minimizes instability of the weight value by calculating the average frequency of the data converted from analog to digital. The frequency of the moving average selected from OFF(0 or 1) ~ 64 times. A higher frequency will make a more stable display with slower response. A lower frequency will have quicker response but more unstable display.

  • Page 47: Analog Filter

    5.SETTING OF FUNCTIONS 5-7. Analog Filter This is a lowpass filter filtering the strain gage sensors input signal and cutout the noise element. Lowpass filter cutout freguency is selectable in the 4/10/100/3k Hz. Setting of Analog Filter 1) Select setting mode 2. 2) Select analog filter.

  • Page 48: Motion Detect

    5.SETTING OF FUNCTIONS 5-8. Motion Detect Setting of parameters for detecting stable measurement is required. If the difference between the current indicated value and that of 100msec before fall within the specified range and the status last for a specified time, indicated values are assumed stable. Indicated value range Time...
  • Page 49 5.SETTING OF FUNCTIONS Setting of Motion Detect 1) Select setting mode 2. 2 ) Select motion detect (time). DOWN Press three times. Motion Detect (time) (0.0 to 9.9s) DOWN keys to set the motion detect (time) then use key to validate the setting. 3) Select motion detect (range).

  • Page 50: Zero Tracking

    5.SETTING OF FUNCTIONS 5-9. Zero Tracking The Zero Tracking function automatically tracks and compensates a fine shift of the zero point due to a factor such as a drift. Setting of Zero Tracking 1) Select setting mode 2. 2) Select zero tracking (Time). DOWN Press five times.
  • Page 51 5.SETTING OF FUNCTIONS - The Zero Tracking function automatically resets the zero point to zero at a specified time interval when the zero point move amount is below the specified range. - The time (tracking delay) is set in units of 0.1 seconds, from 0.1 to 9.9 seconds. The range (tracking band) is set in units of quarters of the indicated value.

  • Page 52: Hold Mode

    5.SETTING OF FUNCTIONS 5-10. Hold Mode The F340A provides the Peak Hold function to hold and display the peak value (maximum value) of the input signal, and the Sample Hold function to hold and display an optional point. Setting of Hold Mode 1) Select setting mode 2.

  • Page 53: Automatic Printing

    The Automatic Printing function automatically prints out indicated values on a UNIPULSE printer connected to the F340A over the SI/F. Printing is made when indicates vales are stable. (Parameter for stabilization is set in the Motion Detect function.) The stabilized indicated value can be held for three seconds (indicated value hold function).
  • Page 54 5.SETTING OF FUNCTIONS Time Near zero Indicated value Stable Near zero 3 seconds Hold ↑ Automatic printing Setting of Automatic Printing 1) Select setting mode 2. 2) Select automatic printing. DOWN Press eight times. Automatic printing 2 : Automatic printing ON, Indicated value HOLD 1 : Automatic printing ON 0 : Automatic printing OFF...

  • Page 55: Hold Value Printing

    5.SETTING OF FUNCTIONS 5-12. Hold Value Printing The Hold Value Printing function automatically prints out the peak value (held value) on a UNIPULSE printer connected to the F340A over the SI/F. Setting of Hold Value Printing 1) Select setting mode 2.

  • Page 56: Lock

    5.SETTING OF FUNCTIONS 5-13. LOCK The Setting value LOCK function inhibits changes to setting to prevent changes to set values or calibrated values through misoperation. Setting of LOCK 1) Select setting mode 3. 2) Select lock. DOWN Select Hold key Setting Value LOCK operation 1 : LOCK...

  • Page 57: Scale Division

    5.SETTING OF FUNCTIONS 5-14. Scale Division This function sets the minimum value of the digital change. Setting of Scale Division 1) Select setting mode 3. 2) Select scale division. DOWN Press twice. Scale Division (001 to 100) DOWN key to set the scale division, then use key to validate the setting.

  • Page 58: Display Frequency

    5.SETTING OF FUNCTIONS 5-15. Display Frequency The Display frequency function is used to select the times the indicated values are displayed per second. A/D conversion count is fixed to 100 per second. Setting of Display Count 1) Select setting mode 3. 2) Select display frequency.

  • Page 59: Excitation Voltage

    To return to the indicated value display, press key. CAUTION Use a strain gauge sensor to be connected to the F340A whose maximum excitation voltage is above the bridge excitation voltage specified. If the bridge excitation voltage is greater than the maximum excitation voltage of...

  • Page 60: 6Hold Function

    6HOLD FUNCTION 6 HOLD FUNCTION 6-1. Peak Hold - Peak Hold Operation Indicated value Sensor input value Peak hold section Peak hold release Time HOLD Key input HOLD LED LED lighting Peak hold start Peak hold reset Indicated value Sensor input value Peak hold section Peak hold release Time...
  • Page 61 6HOLD FUNCTION - Timing Chart Indicated value Sensor input Time Hold input Display and BCD output t1 : MAX 25mS t2 : MAX 10mS t3 : MAX 25mS t4 : MIN 25mS : Time from the short-circuiting of the hold input (OFF → ON) to the display of the peak hold value.

  • Page 62: Sample Hold Operation (Digital Hold)

    6HOLD FUNCTION 6-2. Sample Hold Operation (Digital Hold) - Sample Hold Operation Indicated value Sensor input value Time HOLD Hold section Key input HOLD LED LED lighting Indicated value Sensor input value Time Hold input Hold section HOLD LED LED lighting...
  • Page 63 6HOLD FUNCTION - Timing Chart Indicated value Sensor input Time Hold input Display and BCD output t1 : MAX 25mS t2 : MAX 25mS t3 : MAX 25mS t4 : MIN 25mS : Time from the short-circuiting of the hold input (OFF → ON) to the display of the hold value. : Time from start of the hold to the A/D conversion of the hold value.

  • Page 64: 7． Digital Zero Function

    7.DIGITAL ZERO FUNCTION 7. DIGITAL ZERO FUNCTION This function zeros the indicated value. Digital Zero by Key Operation Setting of Digital Zero 1) Perform digital zero. ZERO 2) When the indicated value becomes zero, digital zero is completed. Digital Zero by External Signal Input The interval while the DZ input (9) and COM (8) on the signal input/output terminal block at the back are short-circuited, the digital zero function works to zero the indicated value.

  • Page 65: 8． Bcd Data Output

    8.BCD DATA OUTPUT 8. BCD DATA OUTPUT The BCD Data Output Interface is for transferring indication values in BCD (Binary coded Decimal) from to PC's PLC's or sequences for controlling, processing and recording data. The internal and external circuits are opto-isolated. 8-1.

  • Page 66: Equivalent Circuit

    8.BCD DATA OUTPUT 8-3. Equivalent Circuit - Output The signal output circuit employs the open collector output F340A Vext Inside outside Vceo=30V(max) Ic =50mA (max) ● Internal transistor status ● Output pin level Output data Negative Positive Output data Negative Positive Ｈ...

  • Page 67: Signal Timing

    8.BCD DATA OUTPUT 8-4. Signal Timing - P.C P.C goes on with the BCD data when measurement is stable. Perform data read approximately 25msec. after the trailing edge of the P.C BCD data 25msec. or more - OVER Output when LOAD or -LOAD, and OFL1 or OFL2 are specified. - STROBE BCD data is updated on a per A/D conversion and the strobe pulse synchronous with the BCD data is output.Use the rising edge of the pulse to read data...

  • Page 68: Bcd Data Update Rate Selection

    8.BCD DATA OUTPUT 8-5. BCD Data Update Rate Selection BCD Data Update Rate Selection 1) Select setting mode 4. 2) Set the update rate of BCD parallel data output. DOWN BCD Update Rate 0 : 100 times/sec. STROBE Range 5msec 1 : 50 times/sec.

  • Page 69: 9． Rs-232C Interface

    9.RS-232C INTERFACE 9. RS-232C INTERFACE RS-232C interface is used to read out the indicated value and the state of F340A and to write set values into F340A. It is convenient to connect F340A with a computer, a process controller and a sequencer, etc.

  • Page 70: Connector Pin Assignment

    9.RS-232C INTERFACE 9-1-2. Connector Pin Assignment Adaptable plug :25-pin D-sub connector ＊ ＊ 9-1-3. About Cables PC etc… F340A cross cable TｘD TｘD RｘD RｘD (CD) (DSR) * The avobe diagram is for connecting a personal computer as a DTE(Data Terminal Equipment)device.

  • Page 71: Setting Rs-232C Interface

    9.RS-232C INTERFACE 9-2. Setting RS-232C Interface This will set the RS-232C communication conditions of F340A. Setting of RS-232C 1) Select setting mode 4. Press three times. 2) Select RS-232C. DOWN Press twice. Stop Bit Communication Mode 1 : 2bit 0 : 1bit...

  • Page 72: Communication Mode

    1. Communication Mode 0 - Reading Out the Indicated Value (the sign, indicated value with 5 digits and decimal point) Host A CR CR LF ＋ F340A - Reading Out the Status (seven digits) Host D CR CR LF F340A...
  • Page 73 9.RS-232C INTERFACE - Write in of the set value Set value High Limit LOCK) CR LF Set value Low Limit LOCK) Set value CR LF High/Low　Limit Comparison Mode LOCK) CR LF Hysteresis Set value LOCK) Set value Digital Offset CR LF LOCK) Near Zero CR LF...
  • Page 74 * Do not put other than zero into a place which is set zero. It is impossible to write W24 and W34. - Reading out Set Values Host Ｗ Ｗ CR LF F340A Set value No. Set value No. The same format as write-in of set values.
  • Page 75 9.RS-232C INTERFACE - Command (host → F340A) Hold Ｃ Ｅ Hold Reset Ｃ Ｆ (This is effective only when the calibration Digital Zero Ｃ Ｇ value LOCK is “1”.) (This is effective only when the calibration Digital Zero Reset Ｃ...
  • Page 76 9.RS-232C INTERFACE O ..Over Load (LOAD, OFL) S..Stable M ..Not Stable H ..Hold * 1 Priority H > O > (Ｓ or Ｍ) A ..Zero Tracking OFF T ..Zero Tracking ON H ..High Limit ON L ..Low Limit ON G ..High / Low Limit OFF N ..High / Low Limit ON F..Compare OFF * 3 Priority...

  • Page 77: 10． D/A Converter

    (Depending on the request at the time of order.) This converter is used to obtain an analog output which is linked with the indicated value of the F340A. The range of the analog output is from -10 to +10V. An analog output from -10V to +10V can be obtained with respect to any digital values set by the D/A zero setting and the D/A full scale setting functions.

  • Page 78: Obtaining Voltage Output Signal

    10-1-2. Setting of D/A Zero and Gain With the D/A converter of the F340A, an analog output is obtained by setting the indicated value to output 0V (D/A zero set value) and the indicated value to output 10V (D/A full scale set value).

  • Page 79: About D/A Resolution

    10.D/A CONVERTER Example of Setting In the case where: D/A output mode ....0 (linked with indicated value) D/A zero setting ....00100 D/A full scale setting ..02100 Voltage Resolution 1/6000 Indicated value -1900 2100 D/A zero set value D/A full scale set value Indicated value Voltage (V)

  • Page 80: Current Output (Dai) (Depending On The Request At The Time Of Order.)

    (Depending on the request at the time of order.) This converter is used to obtain an analog output which is linked with the indicated value of the F340A. The range of the analog output is from 4 to 20mA. An analog output from 4mA to 20mA can be obtained with respect to any digital values set by the D/A zero setting and the D/A full scale setting functions.

  • Page 81: Obtaining Current Output Signal

    10-2-2. Setting of D/A Zero and Gain With the D/A converter of the F340A, an analog output is obtained by setting the indicated value to output 4mA (D/A zero set value) and the indicated value to output 20mA (D/A full scale set value).

  • Page 82: About D/A Resolution

    10.D/A CONVERTER Example of setting In the case where: D/A output mode ....0 (linked with indicated value) D/A zero setting ....00500 D/A full scale setting ..02500 Current (mA) Resolution 1/3000 Indicated value 2500 D/A zero set value D/A full scale set value Net weight Current (mA)

  • Page 83: Setting D/A Zero Full Scale

    10.D/A CONVERTER 10-3. Setting D/A Zero Full Scale This will set the D/A zero full scale of F340A. Setting D/A Zero Full Scale 1)Select setting mode 4. Press three times. 2)Set D/A zero. DOWN Press three times. D/A Zero Value (00000 to ±19999)

  • Page 84: About D/A Output Error

    10.D/A CONVERTER 10-4. About D/A Output Error This is an error which is output only when D/A option is provided. D/A output is less than the range of output. For current output: about 0mA or less For voltage output: about -12.5V or less The D/A output exceeds the range of the output.

  • Page 85: 11． Dc Power Source

    Connect the positive (+) side of the power source to the red screw side of the terminal block on the back of the F340A, and its negative (-) side to the black screw side. Input voltage range (voltage between terminals of the F340A) DC12 ～...

  • Page 86: 12． Overscale/Error Displays

    The fault of the memory which memorizes setting value etc. has occurred. The above-mentioned error is a hardware error and can consider the fault of parts. Although it may return by ON/OFF of a power, when not repaired, please repair can be performed at UNIPULSE or at distributor.

  • Page 87: 13． Self-Check Function And Initialization

    13.SELF-CHECK FUNCTION AND INITIALIZATION 13. SELF-CHECK FUNCTION AND INITIALIZATION 13-1. Self-Check The F340A incorporates the Self-check Function to detect errors in the internal circuits and in programs and the Visual-check Function to visually check the indicator. Setting Method 1) Turn off the power to the F340A.
  • Page 88 13.SELF-CHECK FUNCTION AND INITIALIZATION Self-check (Visual-Check Sequence)

  • Page 89: Initialization

    (obtained through zero calibration and span calibration) to the factory setting Setting Method 1) Turn off the power to the F340A. 2) Turn on the power with keys held down. The initialization follows the self-check.
  • Page 90 13.SELF-CHECK FUNCTION AND INITIALIZATION Initialization Sequence...

  • Page 91: F340A Block Diagram

    13.SELF-CHECK FUNCTION AND INITIALIZATION 13-3. F340A Block Diagram...

  • Page 92: 14． Dimensions

    14.DIMENSIONS 14. DIMENSIONS Unit: mm (Front) (Side) (Real) (Side (with BCD Output connector))

  • Page 93: 15． Specifications

    15.SPECIFICATIONS 15. SPECIFICATIONS 15-1. Analog Section Excitation voltage DC 10V±10％ DC 2.5V±10％ Output current of ｍax 30mA Changable by setting key Pad Signal input range － 3.0 to +3.0mV/V Analog input signal sensitivity 1μV/count (at excitation voltage 10V) Accuracy Non-linearity : < 0.02%FS (of 3mV/V input) Zero drift : <...

  • Page 94: Indicator Section

    15.SPECIFICATIONS 15-2. Indicator Section Indicator Numeric display (5 digits), 15mm in height, red LED Numeric 5digits± Indicatid value － 19999 to 19999 Decimal point Selectable (0 , 0.0 , 0.00 , 0.000) Items Status HI, OK, LOW, PEAK, HOLD Red LED 5 Count 3, 6, 13, 25times/sec.
  • Page 95 15.SPECIFICATIONS 15-7. General Specifications Power voltage AC spec: 100V to 240V AC ( ＋ 10% － 15%) [Free power supply 50Hz/60Hz] - DC spec: 12V to 24V DC (±15%) (Depending on the request at the time of order) Power consumption - AC spec: 15W max.
  • Page 96 - BCD Output connector ..... . .1 (when BCD option is supplied) - F340A operational manual ....1...
  • Page 97 When installing, attention should be given to the following. 1. Since the F340A is defined as an open type (built-in equipment), be sure to install the F340A and fix to a panel or the like for use.
  • Page 98 F340A Ferrite core power supply cable Load cell Connection of Lightning serge protector The F340A main body conforms to EMC directive EN61000-4-5 (lightning surge immunity) in combination with the lightning surge protector. ● AC Spec. F340A Lightning surge protector The cable of the EU outlet shape is required for connection of lighting serge protect.
  • Page 99 16.CONFORMITY TO EC DIRECTIVES ● DC Spec. F340A Lightning surge protector [Connect] Lightning Surge Protector F340A ＋ ＋ To the DC IN DC 24V power － － × No lightning surge protector is included as a standard. It is optionally available (TSU03).

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