Unipulse F371 Operation Manual
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Unipulse F371 Operation Manual

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F371
DIGITAL INDICATOR
　　　　　　　　　　　
　　　　　
OPERATION MANUAL
20 Jul. 2011
Rev. 1.18

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Summary of Contents for Unipulse F371

  • Page 1 F371 DIGITAL INDICATOR 　　　　　　　　　　　 　　　　　 OPERATION MANUAL 20 Jul. 2011 Rev. 1.18...
  • Page 2 - Where the product may be splashed with water, oil or chemicals. - Where the main body is directly affected by vibration or shock. ● Set the correct Excitation Voltage for the sensor. （2.5V is set when F371 is dispatched from us.）...

  • Page 3: Safety Precautions

    Safety Precautions ● Indications for safe use and their meanings In this manual, precautions for using the F371 digital indicator safely are indicated as follows. Be sure to follow the precautions given here because they are important descriptions relating to safety.
  • Page 4 Safety Precautions ● About the built-in lithium battery WARNING Never disassemble, deform under pressure or throw the battery into fire.The battery may explode, catch fire or leak. - Battery Model: CR2477-1HF made by Matsushita Battery Industrial Co., Ltd. Nominal voltage: 3V Nominal electric capacity: 1000mAh ●...

  • Page 5: Table Of Contents

    2．SETTING MODES ........5 2-1．F371 Screen Configuration ....... .5 2-2．Setting Modes Tree .
  • Page 6 CONTENTS 4-5．Equivalent Input Calibration .......21 4-6．Digital Offset ......... .23 4-7．Increment (This step may be omitted if there is no change.) .
  • Page 7 CONTENTS 7．HOLD FUNCTIONS ....... . .47 7-1．Hold Setting --- common --- ......47 7-1-1．Hold Mode .
  • Page 8 CONTENTS 9-2．Graph Plotting .........72 9-2-1．Continuous .
  • Page 9 CONTENTS 14．BCD DATA OUTPUT(OPTION) ..... . .92 14-1．Connector Pin Assignment ......92 14-2．Logic Change .
  • Page 10 CONTENTS 19．SELF-CHECK AND INITIALIZATION ....107 19-1．Self-Check ......... .107 19-1-1．Self-Check DSP .
  • Page 11 CONTENTS...

  • Page 12: 1．Appearance Description

    This is the touch panel display for displaying an indicated value and graph set value and for setting various setting items of the F371. During measurement, a comparison display, hold display and graph display can be selected according to the function in use.

  • Page 13: Rear Panel

    1.APPEARANCE DESCRIPTION 1-2. Rear Panel AC power source Signal I/O terminal input terminal block block Frame ground Optional slot Terminal block over terminal block fix screw VOL OUT +SIG -EXC -SIG +EXC terminal block under fix screw Signal input / output connect COM1 COM2 ＊...
  • Page 14 Screen lock input for invalidating key operation on the measurement screen (comparison/hold/graph). See the section on External I/O Connection page 12 for connection. SI/F The 2-wire serial interface for coupling a UNIPULSE printer, external display, etc. See the section on SI/F Connection page 11 for connection.

  • Page 15: Ac Power Source Input Terminal Block

    This is a ground terminal block. Be sure to ground the F.G. terminal to prevent electric shocks and failures due to static electricity. 1-2-3. Optional Slot Any one of the following optional boards can be mounted. • BCD data output F371 • D/A converter • RS-485 • CC-Link interface (CC-Link is an abbreviation for "Control &...

  • Page 16: 2．Setting Modes

    2.SETTING MODES 2. SETTING MODES 2-1. F371 Screen Configuration [Ordinary display screen] MODE Set value entry from the ordinary display screen HOME [Mode selection screen] Mode keys [Set value selection screen] HOME Setting keys [Set value entry screen] HOME With the NEXT key on the set value entry screen, the next set value entry screen appears.

  • Page 17: Setting Modes Tree

    2.SETTING MODES 2-2. Setting Modes Tree ordinary display screen Mode selection screen OPERATION COMPARISON HOLD GRAPH PAGE1 PAGE1 PAGE1 PAGE1 Digital Filter (P32) HI_HI Limit (P41) Hold Function (P47) Graph Function (P75) Analog Filter (P33) HI Limit (P41) Hold Detect Time (P48) Interval Time (P75)
  • Page 18 2.SETTING MODES SYSTEM RS-232C OPTION CALIBRATION PAGE1 PAGE1 PAGE1 All Para. Clear (P109) Communication Modes (P83) Zero Cal. (P19) SelfCheck DSP (P107) Baud Rate (P83) A setting function changes Actual Cal. (P20) SelfCheck MEM (P107) Character Length (P83) by the option. Equiv.

  • Page 19: About A Setting Call

    2.SETTING MODES 2-3. About a Setting Call In this manual, a setting function call is described as follows. Calibration Protection Operation setting Page 3 Setting call → → ↑ ↑ Mode Page This call can be made by the following procedure. 1）Press the MODE button on the ordinary display screen.

  • Page 20: 3．Connection

    Connect the positive (+) side of the power source to the red screw side of the terminal block on the back of the F371, and its negative (-) side to the black screw side. The input voltage is 12V-24V DC.

  • Page 21: Load Cell Connection

    3.CONNECTION 3-2. Load Cell Connection ・4-wire sensor （+EXC） ＋ IN （-SIG） ＋ OUT － OUT F371 （-EXC） － IN （+SIG） （F.G or ） ・6-wire sensor Short-circuit +EXC with +S and -EXC with -S for connecting a 6-wire strain-gage sensor. （+EXC）...

  • Page 22: Si/F Connection

    3.CONNECTION 3-3. SI/F Connection The 2-wire serial interface has connective ability for coupling a UNIPULSE printer, external display, etc. The interface is nonpolarized and up to three external instruments may be connected. A two-core parallel cable or a cabtyre cable may be used for connection.

  • Page 23: External I/O Connection

    The external output circuit is operated through an open collector. A3 COM1 is the common terminal. The open collector output capacity is 30mA and the withstand voltage is up to 30V. ・ Equivalent circuit Vext F371 Inside Spark Killer Power Supply Load Relay...

  • Page 24: Rs-232C Interface Connection

    3.CONNECTION 3-5. RS-232C Interface Connection This connector connects the RS-232C. Pin No. Signal name Case F.G. Metal case Plastic cover Fit the metal cases into the Din connector, and cap with the plastic covers. Wire connection surface Secure with hardware Side view Insert Example of cabling...

  • Page 25: Voltage Output Connection

    3.CONNECTION 3-6. Voltage Output Connection The voltage output terminal is an interface to extract analog voltage proportional to sensor signal inputs. ← F371 inside outside → VOL OUT External equipment F.G or ・ Since the VOL OUT terminal is not insulated from the internal circuit, use a shielded cable for connection with the external equipment and wire within 2 - 3m.

  • Page 26: Connecting To Cage Clamp Terminal Block

    3.CONNECTION 3-6-1. Connecting to Cage Clamp Terminal Block The output terminal D/A option and RS-485 option is using the cage clamp system terminal stand. Please connect in the following procedure. 1.Strip the casing 0.2inch (6mm) on the cable to be connected. 5 - 6mm 2.Twist the bare wire to fit the terminal hole.

  • Page 27: 4．Calibration

    4.CALIBRATION 4. CALIBRATION Calibration is performed for matching the F371 to a strain-gage sensor. The following two types of calibration are available for the F371. ◇ Equivalent Input Calibration Calibration is performed without an actual load by entering the rated output value (mV/ V) and the capacity (to be indicated) of the strain-gage sensor by the keys.

  • Page 28: Equivalent Input Calibration Procedure

    4.CALIBRATION ◇ Actual Load Calibration Apply an actual load to the strain-gage sensor and enter the actual load value by the keys for calibration. Calibration is accurately performed with reductions in errors. F371 Actual load Strain gauge sensor Indicated value 4-1.

  • Page 29: Actual Load Calibration Procedure

    4.CALIBRATION 4-2. Actual Load Calibration Procedure Follow the steps below to perform actual load calibration. 4-9. Calibration Release the calibration protection. Protection Release Set the calibration value No. 4-10. Calibration (This step may be omitted for use with only one Value Selection selection.) Enter the minimum value of digital increments.

  • Page 30: Zero Calibration

    4.CALIBRATION 4-3. Zero Calibration Set the zero point in no-load condition. How to set Setting call Page 1 Calibration → → 1）Press the MODE button. 2）Press the CALIBRATION button. 3）Press the Zero Cal.button. 4）Press OK button after confirming no-load was applied to the sensor.

  • Page 31: Actual Load Calibration

    4.CALIBRATION 4-4. Actual Load Calibration Set the actual load value under an actual load. How to set Calibration Setting call Page 1 → → 1）Press the MODE button. 2）Press the CALIBRATION button. 3）Press the Actual Cal. button. 4）Apply an actual load to the sensor, enter the actual load value by the numerical keys and determine with the OK button.

  • Page 32: Equivalent Input Calibration

    4.CALIBRATION 4-5. Equivalent Input Calibration Set the rated output value and reading of the sensor. Rated output value: 0.000 - 3.000mV/V Rated value: 00000 - 99999 How to set Calibration Setting call Page 1 → → 1）Press the MODE button. 2）Press the CALIBRATION button.
  • Page 33 4.CALIBRATION 4） Enter the rated output of the sensor by the numerical keys and determine with the OK button. The decimal point is fixed. 5）Enter the rated value by the numerical keys and determine with the OK button.

  • Page 34: Digital Offset

    4.CALIBRATION 4-6. Digital Offset By using the digital offset function, the value obtained by subtracting the set value from the indicated value is displayed. This function is convenient when zero cannot be obtained with no load for some reason or for offsetting. (displayed value)=(actual indicated value)-(offset value) Setting range －...

  • Page 35: Increment (This Step May Be Omitted If There Is No Change.)

    4.CALIBRATION 4-7. Increment (This step may be omitted if there is no change.) Set the increment of the indicated value. Input range: 001 - 100 How to set Calibration Setting call Page 1 → → 1）Press the MODE button. 2）Press the CALIBRATION button. 3）Press the INCREMENT button.

  • Page 36: Decimal Place

    4.CALIBRATION 4-8. Decimal Place Set the decimal point place of the indicated value. Selection can be made from the following. 0, 0.0, 0.00, 0.000, 0.0000 How to set Calibration Setting call Page 2 → → 1）Press the MODE button. 2）Press the CALIBRATION button. 3）Press the PAGE button to select the page and press the DECIMAL PLACE button.

  • Page 37: Calibration Protection

    4.CALIBRATION 4-9. Calibration Protection Calibration-related set values can be protected so that they will not be changed by misoperation. When Cal. Protect is ON, no change can be made while the alarm sounds. ON: Protected OFF: Unprotected How to set Calibration Setting call Page 3...

  • Page 38: Calibration Value Selection

    4.CALIBRATION 4-10. Calibration Value Selection By storing up to four calibration values in the memory, the desired calibration value can be called to switch the indicated value. Setting values that can be switched are as follows: Calibration Mode Setting Operation Mode Setting Zero Calibration Excitation Voltage Actual Load Calibration...

  • Page 39: External Selection Of Calibration Value

    4.CALIBRATION 3）Press the CAL. SELECT button. 4）Select the calibration value from 0 - 3 and determine with the OK button. 4-10-1. External Selection of Calibration Value With this function, four types of calibration values can be selected with external selector signals CAL0 and CAL1 (when the calibration value selection setting is external).

  • Page 40: Unit

    4.CALIBRATION 4-11. Unit Set the unit of the load to be displayed. It can be selected from the following. Category Unit Mass kg，Mg，g，mg，μg，t，lb， dyne，kdyne，oz，TONNE，% Force N，kN，MN，mN，μN，Nm，kNm， MNm，mNm，μNm， ftlb，inlb，inoz，kgm，gcm Pressure Pa，kPa，MPa，GPa，hPa，mPa，μPa， bar，mbar，μbar，mmHg，N/m ， O，inH O，psia，psig，atm Density kg/m ，g/cm ，t/m ，g/ml，g/l，kg/m，mg/m Momentum kgm/s，kgm /s，kgm Viscosity...
  • Page 41 4.CALIBRATION How to set Calibration Setting call Page 2 → → 1）Press the MODE button. 2）Press the CALIBRATION button. 3）Press the PAGE button to select the page and press the UNIT button. 4）Select the category and determine with the OK button. Scroll with the buttons.

  • Page 42: 5．Setting Of Functions

    5.SETTING OF FUNCTIONS 5. SETTING OF FUNCTIONS 5-1. Digital Zero The indicated values is forcedly zeroed. Digital Zero by means of Keys 1）Press the DZ button. 2)Press ‘OK’ to perform the digital zero. Press ‘Cancel’ to cancel the digital zero. Cancel...

  • Page 43: Digital Filter

    5.SETTING OF FUNCTIONS Digital Zero by means of Keys The digital zero may be performed by short circuiting the D/Z to the COM2 on the rear panel signal I/O terminal block. Keep on for 1.0 msec. or more. Note Digital zero is reseted in case of power failure. Please set digital zero again.

  • Page 44: Analog Filter

    5.SETTING OF FUNCTIONS 5-3. Analog Filter A low-pass filter is provided for filtering input signals from the strain-gage sensor and canceling noise components. The cut-off frequency can be selected in a range between 10Hz and 300Hz. With an increase in the cut-off frequency, the response becomes faster, but noise components may be indicated.

  • Page 45: Stability

    5.SETTING OF FUNCTIONS 5-5. Stability Enter the parameters to detect stability. If the difference between the current indicated value and the 50-msec-previously indicated value is less than the set count and the duration of the condition is more than the set time, the indicated value is regarded to be stable. When stability is detected, a digital filter (fixed 32 times) to control instability in weight value is automatically inserted.

  • Page 46: Zero Track

    5.SETTING OF FUNCTIONS 5-6. Zero Track Gradual changes in the zero point due to drifts etc., are automatically tracked for correction. ・When displacement of the zero point is within the set count of tracking and it continues more than the set time, it is automatically made zero by Zero Tracking function.

  • Page 47: Contrast Adjustment

    5.SETTING OF FUNCTIONS 5-7. Contrast Adjustment Adjust the contrast of the touch panel display. Brightness can be adjusted by CONTRAST1. Screen flickering can be adjusted by CONTRAST2. How to set Setting call Operation Setting → Page 2 → 5-8. Backlight The backlight is turned off if no button operation is performed for the set time (minutes).

  • Page 48: Auto Print

    5-10. Auto Print The indicated value is automatically printed to the UNIPULSE printer coupled with the F371 through the SI/F. A print is made when the indicated value is stable. (Set the stability parameters by the stability operation.) When Near Zero is OFF, Indicated value is held until Near Zero turns ON after Stability turned ON.
  • Page 49 5.SETTING OF FUNCTIONS Time Near Zero Indicated Value Sensor input value － Stable Near Zero 1.5Seconds Hold ↑ Autmatic Printing Auto Print is not performed under the following conditions. ・Motion Detect 　Time: 0.0 sec. Width: 0.0 of divisions is set. ・Print while hold is released.

  • Page 50: Hold Off Print

    5.SETTING OF FUNCTIONS 5-11. Hold Off Print At hold-off time, the held value is automatically printed to the UNIPULSE printer coupled with the F371 through the SI/F. (The hold is released by the T/H signal off timing when the period setting is all interval in various hold modes by hold functions, and by the T/H signal of timing when other periods are set.)

  • Page 51: 6．Comparison Functions

    6.COMPARISON FUNCTIONS 6. COMPARISON FUNCTIONS By the comparison function, the HI limit and LO limit values are set, and when the indicated value exceeds the HI limit, the HI output is turned on, and when the indicated value falls below the LO limit, the LO output is turned on. Also, HI-HI limit and LO-LO limit values may be set outside the HI-LO limit comparison.

  • Page 52: Hi Limit/Lo Limit/Hi-Hi Limit/Lo-Lo Limit

    6.COMPARISON FUNCTIONS 6-1. HI Limit/LO Limit/HI-HI Limit/LO-LO Limit How to set Comparison setting Setting call Page 1 → → Simple setting call Press any of the HI-HI, HI, LO and LO-LO buttons at the bottom of the indicated value display screen to go direct to the entry screen. About the indicated value display color The display color can be changed by pressing the indicated value display section.

  • Page 53: Hysteresis

    6.COMPARISON FUNCTIONS 6-2. Hysteresis The hysteresis value may be determined so as to allow a margin for timing the turning off of the HI-LO limit comparison. Normally, it is turned on when the indicated value exceeds the HI limit and is turned off when the indicated value falls below it. However, by setting the hysteresis, it is turned off when the indicated value falls below the HI limit further lowered by the hysteresis value.
  • Page 54 6.COMPARISON FUNCTIONS ・ Hysteresis operation Indicated Value HI Limit Value Hysteresis Range LO Limit Value ＋ － Time HI Output HI Status Display Output OFF Output OFF Output ON Status OFF Status OFF Status ON LO Output LO Status Display Output OFF Output ON Output ON...

  • Page 55: Near Zero

    6.COMPARISON FUNCTIONS 6-3. Near Zero By this function, it is detected that the indicated value is near zero. Near-zero ON:| indicated value | <=near zero set value Near-zero OFF:| indicated value | > near zero set value Setting range: 00000 - 99999 Turning on/off the near zero function is closely related to the auto print function and HI-LO limit comparison.

  • Page 56: Hi-Lo Limit Output Mode

    6.COMPARISON FUNCTIONS 6-5. HI-LO Limit Output Mode The number of HI-LO limits can be changed.. Mode HI Limit Operation LO Limit Operation Mode 0 None HI-HI Limit，HI Limit， LO Limit，LO-LO Limit Mode 1 LO-LO Limit HI-HI Limit，HI Limit， LO Limit Mode 2 HI-HI Limit，HI Limit LO Limit，LO-LO Limit...

  • Page 57: Alarm Mode

    6.COMPARISON FUNCTIONS 6-6. Alarm Mode The comparison target of the HI-HI limit and LO-LO limit set values can be changed from “hold value” to “real-time value”. By this function, whether or not the indicated value becomes abnormal during hold can be monitored. Unavailable : Comparison operation is performed with hold values.

  • Page 58: 7．Hold Functions

    7-1. Hold Setting --- common --- 7-1-1. Hold Mode The F371 includes nine hold modes as shown in the table below. In the peak, valley, peak-to-peak and mean value modes, period setting is required. Select all period, external signal, time, or time with trigger.

  • Page 59: Hold Detection Time

    7.HOLD FUNCTIONS Simple setting call Press the MODE button at the bottom of the indicated value display screen to go direct to the hold mode entry screen. 7-1-2. Hold Detection Time If you set the hold period setting in the hold function setting to Time or Time with Trigger, set the time.

  • Page 60: Auto Start Level

    7.HOLD FUNCTIONS 7-1-3. Auto Start Level If you select the time specified period mode with trigger, or relative maximum, relative minimum or inflection point hold in the hold mode setting, set the start level. Setting range: -99999 - 99999 How to set Setting call →...

  • Page 61: Hold Setting

    7.HOLD FUNCTIONS 7-2. Hold Setting --- relative maximum and relative minimum --- If you select the relative maximum and relative minimum hold in the hold function setting, set the relative maximum and relative minimum value detection parameters "minimum count" and "valley detection level". Set referring to the principle of operation only when the value cannot be held successfully with the factory settings or when further adjustments are required.

  • Page 62: Minimum Count

    7.HOLD FUNCTIONS 7-2-1. Minimum Count Setting range: 0001 - 9999 How to set Setting call → Page 1 Hold → 7-2-2. Valley Detection Level Level: 1/4, 1/2, 3/4, 1, 1.25, 1.5, 2, 3 times How to set Setting call → Page 1 Hold →...

  • Page 63: Hold Setting

    7.HOLD FUNCTIONS 7-3. Hold Setting --- inflection point --- If you select the inflection point hold in the hold function setting, set the inflection point detection parameters "minimum slope", "interval A" and "interval B". Set referring to the principle of operation only when the value cannot be held successfully with the factory settings or when further adjustments are required.

  • Page 64: Minimum Slope

    Page 2 Hold → The interval setting is the number of samplings. Since the F371's sampling speed is 2000 times/sec., one sampling is 0.5msec. Therefore, setting of the interval at 100 means setting of 50msec. Caution regarding inflection point hold...
  • Page 65 7.HOLD FUNCTIONS Example of inflection point hold setting ● Example of ideal waveform setting D = 80 C = 10 100msec 100msec ① Set the load change time (between the inflection point and when the change stops) to interval B. In the example, it is set to 200 since it is 100 msec.

  • Page 66: Hold Setting

    7.HOLD FUNCTIONS 7-4. Hold Setting --- mean value --- 7-4-1. Mean Value Sampling Count If the mean value sampling count is set at 2 or more in the mean value hold, the representative value of the sampling values by the set count (mean value by the count) is adopted as the sampling data used for mean value calculation.

  • Page 67: Hold Operation

    7.HOLD FUNCTIONS 7-5. Hold Operation 7-5-1. Sample Hold When the T/H signal is inputted, a desired point is held, and the H/E output is turned on. Hold of the value continues as long as the T/H signal is on. ＋ Sensor Input Value Indicated Value Detection ・...

  • Page 68: Peak Hold

    7.HOLD FUNCTIONS 7-5-2. Peak Hold The maximum value (peak) in the positive direction of the specified period is held. The period is specified by the setting of “all period”, “external signal”, “time”, or “time with trigger”. (Example) All Period Peak Hold ＋...

  • Page 69: Valley Hold

    7.HOLD FUNCTIONS 7-5-3. Valley Hold The maximum value (valley) in the negative direction of the specified period is held. The period is specified by the setting of “all period”, “external signal”, “time”, or “time with trigger”. (Example) All Period Valley Hold ＋...

  • Page 70: Peak-To-Peak (P-P) Hold

    7.HOLD FUNCTIONS 7-5-4. Peak-to-Peak (P-P) Hold The maximum value of the difference between the peak and valley over the specified period is held. The period is specified by the setting of “all period”, “external signal”, “time”, or “time with trigger”. (Example) All Period Peak-to-Peak (P-P) Hold ＋...

  • Page 71: Relative Maximum And Relative Minimum Hold

    7.HOLD FUNCTIONS 7-5-5. Relative Maximum and Relative Minimum Hold Detection starts when the indicated value crosses the auto start level with the H/M signal inputted. Detection is performed as long as the H/M signal is on. The hold is released by turning on the T/H signal as a reset signal. The H/E output signal is on between the instant when the hold starts and the instant when the T/H signal is turned on.
  • Page 72 7.HOLD FUNCTIONS The Hold Function in General ●The delay times of the judging signal and the H/E signal do not include a delay time of the analog circuit (low-pass filter). Also, the delay times are calculated without the digital filter. Since the judging signal and the H/E signal are generated for the value produced through the analog and digital filters, transmission of the signals becomes slower and the delay of each output signal increases with enhancement of the filters.

  • Page 73: Inflection Point Hold

    7.HOLD FUNCTIONS 7-5-6. Inflection Point Hold Detection starts when the indicated value crosses the auto start level with the H/M signal inputted. Detection is performed as long as the H/M signal is on. The hold is released by turning on the T/H signal as a reset signal. The H/E output signal is on between the instant when the hold starts and the instant when the T/H signal is turned on.

  • Page 74: Mean Value Hold

    7.HOLD FUNCTIONS 7-5-7. Mean Value Hold The mean value of the sampling values over the specified period is calculated and updated to perform comparison operation. The period is specified by the setting of “all period”, “external signal”, “time”, or “time with trigger”.

  • Page 75: How To Specify The Hold Detection Period

    7.HOLD FUNCTIONS 7-6. How to Specify the Hold Detection Period 7-6-1. All Period By this method, the hold detection period is externally specified by the T/H signal. Detection starts with the T/H signal ON to perform each hold operation. Detection ends with the T/H signal OFF to reset the hold. (Example) All Period Peak Hold ＋...

  • Page 76: Externally Specified Period Hold

    7.HOLD FUNCTIONS 7-6-2. Externally Specified Period Hold (Peak, Valley , Peak-to-Peak and Mean Value) By this method, the hold detection period is externally specified by the H/M signal to maintain the hold value until the reset signal is turned on. The hold is released by turning on the T/H signal as a reset signal.

  • Page 77: Time Specified Period Hold

    7.HOLD FUNCTIONS 7-6-3. Time Specified Period Hold (Peak, Valley, Peak-to-Peak and Mean Value) Hold is detected during the predetermined time (hold detection time) from the point in time when the H/M signal is turned on. The hold is released by turning on the T/H signal as a reset signal.

  • Page 78: Time Specified Period Hold With Trigger

    7.HOLD FUNCTIONS 7-6-4. Time Specified Period Hold with Trigger (Peak, Valley, Peak-to-Peak and Mean Value) Hold is detected during the predetermined time (hold detection time) from the point in time when the indicated value crosses the auto start level. The hold is released by turning on the T/H signal as a reset signal.

  • Page 79: 8．Multi-Hold Function

    8.MULTI-HOLD FUNCTION 8. MULTI-HOLD FUNCTION By this function, up to 16 types of hold, graph and comparison set values can be stored and selected with external switching signals of CODE0 - CODE3. Normally, if there is no entry for CODE0 - CODE3, the set value of CH0 is selected, but when CODE0 - CODE3 are in the following conditions, the set value of each setting CH is selected.

  • Page 80: About Changing Of The Setting Ch

    8.MULTI-HOLD FUNCTION 8-1. About Changing of the Setting CH When changing the hold or comparison set value of each CH, set the CH No. with the CH change key on the mode selection screen, and change the set value. How to set 1）Select the setting CH on the mode setting screen.

  • Page 81: 9．Waveform Display

    9.WAVEFORM DISPLAY 9. WAVEFORM DISPLAY 9-1. Graphic Display Screen Graph is updated while usually operating on the display screen (a comparison ,a hold ,graph ). Indicated value display (At cursor ON time, the cursor 　　　　　　　　　　point (green) value is displayed.) Y-axis (load axis) X-axis (time axis) Graphic display START/STOP Cursor move keys (The cursor moves on the X-axis.)

  • Page 82: Hold Point Plotting

    9.WAVEFORM DISPLAY 9-1-1. Hold Point Plotting By using the hold function and the graph plotting function together, the held point (red) can be plotted. Example) Relative maximum hold Held point 9-1-2. X-axis and Y-axis on the Graph Plotting Screen X-axis The X-axis is a time setting axis.

  • Page 83: Graph Plotting

    9.WAVEFORM DISPLAY 9-2. Graph Plotting 9-2-1. Continuous Graph plotting is started by turning on the START/STOP key or turning on the ST/SP external input. When it ends on one screen, the screen is cleared after expiration of the interval time and graph plotting restarts on the next screen. It is ended by turning off the START/STOP key or turning off the ST/SP external input.

  • Page 84: External

    9.WAVEFORM DISPLAY 9-2-2. External Plotting is started by turning on the START/STOP key or turning on the ST/SP external input. Plotting ends on one screen at the predetermined time of the X end point. ＋ START/STOP （Key） ST/SP （Outside Input） 1.0msec more Plotting Period...

  • Page 85: Level

    9.WAVEFORM DISPLAY 9-2-3. Level Plotting is started when the conditions of the detection mode are met in comparison of the trigger level set value and indicated value. Plotting ends on one screen at the predetermined time of the X end point. ＋...

  • Page 86: Graph Function

    9.WAVEFORM DISPLAY 9-3. Graph Function Set the graph plotting mode. Modes Continuous, external, level, external + level How to set Setting call → Page 1 Graph → 9-4. Interval Time If you select "continuous" in the graph function setting, set the graph plotting operation interrupting time from clearing the screen until moving to the next graph plotting operation.

  • Page 87: Level Detection Mode

    9.WAVEFORM DISPLAY 9-6. Level Detection Mode If you select [level] or [external + level] in the graph function setting, set the graph plotting start level comparison conditions. Conditions: passing, passing over, passing under, large, small How to set Setting call →...

  • Page 88: Start Point

    9.WAVEFORM DISPLAY 9-7. X Start Point Set the time to display by one screen in the range between 0.1 sec. and 99.9 sec. How to set Setting call → Page 1 Graph → Simple setting call Press the X button on the graph display to go direct to the X end point entry screen.

  • Page 89: Y (Load) Start Point And Y (Load) End Point

    9.WAVEFORM DISPLAY 9-8. Y (Load) Start Point and Y (Load) End Point Setting range: -99999 - 99999 (where Y start point < Y end point) How to set Setting call → Page 2 Graph → Simple setting call Press the Y button on the graph display to go direct to the Y end point entry screen.

  • Page 90: 10．Voltage Output（Vol Out

    The output level is approx. 2V per 1mV/V of sensor input. ・ Example of output equivalent circuit and external equipment connection F371 inside － ２ ＋ External equipment １...

  • Page 91: 11．Screen Lock

    11.SCREEN LOCK 11. SCREEN LOCK When terminals are short-circuited, key operation is invalidated on the measurement screen (comparison/hold/graph). However, the measurement screen can be changed (hold to graph) and the cursor function is valid. During lock, the lock status is displayed on the left-hand side of the screen, and the alarm sounds if any invalid key is pressed.

  • Page 92: 13．Rs-232C Interface

    13.RS-232C INTERFACE 13. RS-232C INTERFACE The RS-232C is an interface to read the indicated value and status of the F371 and to write parameters into the F371. This interface is convenient to process controls, totals, records, etc., by connecting the F371 to a computer, process controller, sequencer or the like.

  • Page 93: Connector Pin Assignment

    13.RS-232C INTERFACE 13-1-2. Connector Pin Assignment This connector connects the RS-232C. Pin No. Signal name Case F.G. 13-1-3. Cable The following shows an example of connection between DTE-DTE terminals. This will require modification depending on the equipment to be connected. For details, see the instruction manual of the equipment to be connected.

  • Page 94: Rs-232C Interface Setting

    13.RS-232C INTERFACE 13-2. RS-232C Interface Setting Set the RS-232C communication conditions of the F371. 13-2-1. Communication Mode Communication mode 0, communication mode 1, communication mode 2 How to set Setting call → Page 1 Option → 13-2-2. Baud Rate 1200，2400，4800，9600，19200bps...

  • Page 95: Parity Bit

    13.RS-232C INTERFACE 13-2-4. Parity Bit None, odd, even How to set Setting call → Page 1 Option → 13-2-5. Stop Bit 1 bit, 2 bit How to set Setting call → Page 1 Option → 13-2-6. Terminator CR，CR ＋ LF How to set Setting call →...

  • Page 96: Communication Modes

    The indicated value is transmitted upon printing. 13-4. Communication Format 1. Communication Mode 0 - Reading the indicated value (sign, 5-digit indicated value, decimal point) Host A CR ＋ F371 Terminator - Reading the status (7-digit) Host D CR F371 Terminator 1:ON ※...
  • Page 97 13.RS-232C INTERFACE Host C CR F371 Terminator 1:ON ※ Undefined ＋ LOAD 0:OFF 1:ON － LOAD 0:OFF 1:ON 1:ON ＋ OVER Output signal 0:OFF 0:OFF 1:ON 1:ON － OVER 2:OFF Output signal 0:OFF - Writing parameters HI-HI Limit ± （Set Value Lock) HI limit ±...
  • Page 98 13.RS-232C INTERFACE Hold mode CR LF ① （Set Value Lock) Hold Section Setup CR LF ② Hold Detect Time CR LF （Set Value Lock) Auto Start Level CR LF ± （Set Value Lock) Minimum Count CR LF 1 ～ 999 valley Detect CR LF ③...
  • Page 99 13.RS-232C INTERFACE Set value correspondence table ① Hold mode 0： tracking 5： relative maximum 1： sample 6： relative minimum 2： peak 7： inflection point 3： valley 8： mean value 4： peak-to-peak ② Hold period setting 0： all period 1： external signal 2：...
  • Page 100 13.RS-232C INTERFACE - Reading waveform data Host ± F371 …… 00 ～ 19 Data Section No. 00 ～ 19 Decimal Point and Five digits Data1 Data Section No. ± ± …… Teaminator Decimal Point and Five digits Data9 Decimal Point and Five digits Data10 ・Wave form hold point data read-out(data No, a mark, a decimal point,5 figures of...
  • Page 101 Ｗ F371 Terminator Set Value No. Set Value No. The same format as write-in of set values. - Commands (Host → F371) Digital Zero （This is effctive only when the set value Ｃ LOCK is "1."） Digital Zero reset Ｃ...
  • Page 102 13.RS-232C INTERFACE ＊ 1 O..Over Load（LOAD，OFL） S ..Stable M..Not Stable H..Hold ＊ 1Priority H ＞ O ＞（Ｓ or Ｍ） ＊ 2 A..Zero Tracking OFF T ..Zero Tracking ON ＊ 3 H..High Limit ON L ..Low Limit ON G..High Limit and Low Limit OFF N..High Limit and Low Limit ON F ..Compare OFF...

  • Page 103: 14．Bcd Data Output(Option)

    14.BCD DATA OUTPUT(OPTION) 14. BCD DATA OUTPUT(OPTION) The BCD data output is an interface to extract the indicated value of the F371 as BCD data. This interface is convenient to process controls, totals, records, etc., by connecting the F371 to a computer, process controller, sequencer or the like.

  • Page 104: Logic Change

    When COM and pin No. 27 are open: hold cancel When they are short-circuited: hold on 14-4. Equivalent Circuit ・Output The signal output circuit is operated through a TTL open collector. Vext F371 Inside Outside Vceo=30V(max) Ic =30mA (max) ● Internal transistor status ●...

  • Page 105: Signal Timing

    14.BCD DATA OUTPUT(OPTION) ・Input Open OFF F371 Short ON Inside Outside Transistor IC=Approx.6mA Switch TTL open collector output (ON when IN is HI) NOTE - Do not apply external voltage to the signal input circuit. - The external element is required to withstand Ic=10mA.

  • Page 106: Bcd Data Update Rate Selection

    14.BCD DATA OUTPUT(OPTION) ・STROBE Strobe pulses are outputted in synchronization with BCD data. Read data using the rising edges of the pulses. The BCD data update rate setting can be changed. BCDdata OVER STROBE Storobe range 14-6. BCD Data Update Rate Selection Output rate: 1, 10, 100, 1000 times How to set Setting call...

  • Page 107: 15．Rs-485 Communication Interface(Option)

    Set the communications mode of the F371 to “4-wire.” Connect the “SD” (sending side) of the equipment on the other end (master), such as a programmable controller, to “RD” (receiving side) of the F371 (slave), and “RD” of the master to “SD” of the F371.
  • Page 108 Couple a terminal resistor of 100 - 200Ω to the receiving end. (The terminus resistance by the side of F371 can be switched by setup.120 ohms is conncted when terminus resistance is set as ON.)
  • Page 109 （Master） 2. Polarity Basically, connect “A” or “-” of the equipment on the other end to “A-” of the F371, and “B” or “+” of the equipment on the other end to “B+” of the F371. (In some rare cases, the signal polarity (A/B notation) may be reversed, so that communications cannot be made even with correct connection.

  • Page 110: Communication Method

    15.RS-485 COMMUNICATION INTERFACE(OPTION) 15-3. Communication Method 1． For connecting more than one F371, assign an ID number to each F371. 2．Send the start command including the ID number from the host, whereby communications are allowed with one F371, enabling reading of indicated value, reading and changing of set values (parameters), sending of commands and so on.

  • Page 111: Interface Setting

    15.RS-485 COMMUNICATION INTERFACE(OPTION) 15-4. RS-485 Interface Setting 15-4-1. ID Setting range: 0000 - 9999 How to set Setting call → Page 2 Option → 15-4-2. Terminator Resistance Without terminator resistance / with terminator resistance How to set Setting call → Page 2 Option →...

  • Page 112: 16．D/A Converter(Option)

    -10 - 10V and 4 - 20mA can be obtained between VOL and G and between CUR and G, respectively. - Taking voltage output signals Connect external equipment (2KΩ or more load resistance) to VOL and G of the F371. F371 ← Inside Outside → ＋...

  • Page 113: Voltage Zero And Full Scale, Current Zero And Full Scale

    16.D/A CONVERTER(OPTION) - Taking current output signals Connect external equipment (350Ω or less load resistance) to CUR and G of the F371. F371 ← Inside Outside → ＋ External equipment － Load resistance ： 350Ω or more - Resolution The D/A converter has a resolution of 1/10000 to -10 - 10V (4 - 20mA).

  • Page 114: D/A Output Mode

    16.D/A CONVERTER(OPTION) 16-2. D/A Output Mode In synchronization with the indicated value / Fixed at 0V / Fixed at 10V / Fixed at 4mA / Fixed at 20mA In synchronization with Outputs in synchronization the indicated value with the indicated value. Fixed at 0V : The voltage output is fixed at zero output (0V).
  • Page 115 16.D/A CONVERTER(OPTION) How to output adjust Adjust the output with the dummy trimmer that appears on the adjustment screen after selecting each fixed output in the D/A output mode setting and pressing the [OK] key. While monitoring the output value, finely adjust the output with the dummy trimmer UP/ DOWN keys, and press the [OK] key to confirm, so that the trimmer position is entered.

  • Page 116: 17．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 F371, and its negative (-) side to the black screw side. Input voltage range (voltage between terminals of the F371) 12 - 24V DC ( ±...

  • Page 117: Error Messages

    Although the F371 will not break down immediately even if the above messages are displayed, ADC+OVER or ADC-OVER indicates that an excessive voltage may be applied to the input circuit of the F371. It is therefore required to remove the cause immediately.

  • Page 118: 19．Self-Check And Initialization

    19.SELF-CHECK AND INITIALIZATION 19. SELF-CHECK AND INITIALIZATION 19-1. Self-Check The self-check function includes a memory check to check the memory automatically for detecting problems, a visual check to check the display visually, a touch panel key input check and an external I/O check. Self-Check DSP 19-1-1.

  • Page 119: Self-Check Key

    19.SELF-CHECK AND INITIALIZATION Self-Check KEY 19-1-3. The touch panel keys are checked. Black-bordered pseudo keys appear on the blue screen. These keys should change to white when pressed. When all keys are pressed, the original screen is restored. If the color does not change with no reaction due to a problem, it is NG.

  • Page 120: Initialization(All Setting Value Clearances)

    19.SELF-CHECK AND INITIALIZATION 19-2. Initialization(All setting value clearances) The contents of the memory are rewritten to factory defaults. In this operation, calibration values (zero calibration and span calibration) do not change but all other parameters are rewritten to factory defaults. See the section on SETTING ITEM CHART page 119 for factory defaults.

  • Page 121: 20．About Japanese/English Display Selection

    20.ABOUT JAPANESE/ENGLISH DISPLAY SELECTION 20. ABOUT JAPANESE/ENGLISH DISPLAY SELECTION The display language of the F371 is selectable between Japanese and English. JPN: Japanese ENG: English How to set Setting call → Page 2 System →...

  • Page 122: 21．Block Diagram

    21.BLOCK DIAGRAM 21. BLOCK DIAGRAM Zero Gain VOL OUT Buffer adjustment adjustment Low-pass ＋ SIG × 100 Fillter － SIG Conversion ＋ EXC Excitation Voltage － EXC RS-232C Referrence Voltage FRAME Serial Watch Port 32bit Flash ROM 384K Serial Port 16Kbyte NOV.RAM Port...

  • Page 123: 22．Dimensions

    22.DIMENSIONS 22. DIMENSIONS ［ Front ］ ［ Side ］ Panel cut out dimensions ［ Rear ］...

  • Page 124: 23．Installation In A Panel

    23.INSTALLATION IN A PANEL 23. INSTALLATION IN A PANEL Follow the steps below to install the F371 in a panel. 1) Remove both side rails. 2) Make a hole in the panel in accordance with the panel cutout size. +0.8 92mm －...

  • Page 125: 24．Specifications

    24.SPECIFICATIONS 24. SPECIFICATIONS 24-1. Analog Section Sensor excitation 10V, 5V, 2.5V DC (digital adjustment) Output current: Within 120mA 4-wire (Up to four 350Ωload cells can be connected.) Signal input range -3.0 - +3.0mV/V Performed by digital computation Zero and gain adjustment Accuracy Non-linearity ：...

  • Page 126: Communication

    24.SPECIFICATIONS Comparison functions External output HI-HI limit LO-LO limit HI limit LO limit Four calibration values can be stored in memory and Calibration value selection switched. 24-3. Communication RS-232C communication interface Start/stop system Baud rate: 1200bps - 19200bps 24-4. Options BCD data output Open-collector output Output rate...

  • Page 127: External Input And Output

    24.SPECIFICATIONS 24-5. External Input and Output Output Output common - COM1 HI-LO limit comparison output (open-collector outputs) - HH - HI - GO - LO - LL Hold end output - H/E Event output at the end of graph plotting - EVENT Serial data output SI/F start/stop system 600bps...

  • Page 128: General

    24.SPECIFICATIONS 24-6. General - AC spec :100V to 240V AC ( ＋ 10% － 15%) Required power source [free power source 50/60Hz] - DC spec :12V to 24V DC ( ± 15%) (Depending on the request at the time of order) Power consumption - AC spec: 15W (30VA) max.

  • Page 129: Accessories

    24.SPECIFICATIONS 24-7. Accessories ・Operation Manual - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 ・Acceptance proof - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 ・The sticking-by-pressure terminal for external I/O terminal stand - - - - 7 （TMEV1.25-3S）...

  • Page 130: 25．Setting Item Chart

    25.SETTING ITEM CHART 25. SETTING ITEM CHART Setting of OPERATION　 　　　　　　　　　　　　　　　　　 N：NOVRAM　S：SRAM page Item Default Calibration Set Value LOCK LOCK Digital Filter ◎ ○ Analog Filter 300Hz ◎ ○ Display Rate 10Times ◎ ○ １ 1.5Sec Stability（Time） ◎ ○ 05CNT Stability（Cnt）...
  • Page 131 25.SETTING ITEM CHART Setting of HOLD MODE（CH00 ～ CH15） page Item Default Calibration Set Value LOCK LOCK Hold Function Tracking ◎ ○ Hold Detect Time 1.000Sec ◎ ○ Auto Start Level 00100* ◎ ○ １ Minimum Count ◎ ○ Valley Detect Level 1.0Times ◎...
  • Page 132 25.SETTING ITEM CHART Setting of Calibration page Item Default Calibration Set Value LOCK LOCK Zero Calibration ◎ ○ Actual Load Cal 10000* ◎ ○ Egv.Input Cal 3.000 ◎ ○ １ Cal. Select CAL.0 ◎ ○ Increment ◎ ○ Unit ◎ ○...
  • Page 133 25.SETTING ITEM CHART Setting of Option In case of used Output Mode page Item Default Calibration Set Value LOCK LOCK Output Mode Input Value ◎ ○ Voltage Zero Output 00000 ◎ ○ Voltage Full Scale 10000 ◎ ○ １ Current Zero Output 00000 ◎...

  • Page 134: 26．Conformity To Ec Directives

    11, EN61000-3-2, EN61000-3-3 When installing, attention should be given to the following. 1. Since the F371 is defined as an open type (built-in equipment), be sure to install the F371 and fix to a panel or the like for use.
  • Page 135 26.CONFORMITY TO EC DIRECTIVES Connection of Lightning serge protect The F371 main body conforms to EMC directive EN61000-4-5 (lightning surge immunity) in combination with the lightning surge protect.　　　　 F371 Lightning surge protect (EU outlet shape) “MAINTRAB MNT-ID” lightening surge protector...
  • Page 136 - The F371 main body conforms to EMC directive EN61000-4-5 (lightning surge immunity) in combination with the lightning surge protect. - The F371 does not conform to EC directives with the CC-Link option or Device Net option, and on a DC power source.
  • Page 137 Unipulse Corporation 9-11 Nihonbashi Hisamatsucho, Chuo-ku, Tokyo 103-0005 Tel. +81-3-3639-6120 Fax: +81-3-3639-6130...

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