96M0374. Instruction Manual. Analog Sensor Controller. RD Series

Transcription

1 Instruction Manual Analog Sensor Controller RD Series 96M0374

2 Safety precautions This manual describes how to install the RD Series as well as its operating procedures and precautions. Please read this manual carefully to get the best from your RD Series. Symbols The following symbols alert you to important messages. Be sure to read these messages carefully. WARNING Failure to follow instructions may lead to injury. (electric shock, burn, etc.) Note CAUTION Failure to follow instructions may lead to product damage. Provides additional information on proper operation. 2 General precautions At startup and during operation, be sure to monitor the functions and performance of the RD series. We recommend that you take substantial safety measures to avoid any damage in the event a problem occurs. Do not open or modify the RD series or use it in any way other than described in the specifications. When the RD series is used in combination with other instruments, functions and performance may be degraded, depending on operating conditions and the surrounding environment. Do not use the RD series for the purpose of protecting the human body. See page 80 for WARRANTIES AND DISCLAIMERS. This is a Class A (EN55011 EMI standard) product. In a domestic environment this product may cause radio interference in which case the user may be required to take adaquate measures. Configuration of this instruction manual This instruction manual consists of the following six sections: Page 1. I/O preparation to Display & Tolerance Setting to Use of Functions to Data Processing Mode to Interface to Specifications & Hints on Correct Use to 79 Note CAUTION Section 3 "Use of Functions" and section 4 "Data Processing Mode" provide tables of contents listing reference page numbers on their first pages, respectively.

3 Table of Contents Be sure to read the section marked with an asterisk. Page Quick operation for tolerance differentiation I/O Preparation Part names Setting input range Panel key operation lock function Connections I/O circuit Display & Tolerance Setting Setting tolerance Calling tolerance Setting hysteresis Auto-zero function Use of Functions Table of modes and function numbers Function setting procedure Average mode Digital filter mode Input mode Comparison mode Digits/Decimal point mode Offset mode Output form mode Operating method selection mode Analog voltage output function MDL (Multi-point Digital Linearize) function Data Processing Mode Table of data processing modes Normal mode Peak hold mode Bottom hold mode Peak-to-peak hold mode Sample hold mode Auto peak hold mode Auto bottom hold mode Peak (Bottom) detection output function

4 4 Interface RD-50E(W) RD-50R(W) Communication parameters Connector pin assignment Connection to a personal computer Remote operation RS-232C code list Specifications & Hints on Correct Use Specifications Error messages Troubleshooting guide Minimum input time and output response time Hints on correct use Installation Dimensions WARRANTIES AND DISCLAIMERS

5 Contents itemized according to function The RD series has the following functions: Setting tolerance Setting the tolerance values (HH, HI, LO, LL) enables the comparator output. Auto-zero The displayed value can be instantaneously reset to "0000". Average The number of averaging measurements can be set according to the input or control method. Digital filter Removes from the analog input signal components with a frequency exceeding a specified level, in order to display and output the desired data form. Input processing Performs addition or subtraction of analog input values from two sensors and displays the result. Digits The number of displayed digits can be changed to 4 digits. Decimal point The decimal point can be placed at the desired position. Offset Any value can be added to or subtracted from the displayed value. Output form The comparator output is maintained until the hold-reset signal is input or delayed by a specified period ( called the off-delay). Analog voltage output An analog voltage proportional to the displayed value can be output. Multi-point digital linearizer Corrects the analog input signal to display/output a linear signal. Peak hold The maximum value during a specified period can be measured. Bottom hold The minimum value during a specified period can be measured. Peak-to-peak hold The difference between the maximum and minimum values during a specified period can be measured. Sample hold The value at a specified moment can be measured. Auto peak hold The maximum value from the start of measurement can be measured automatically. Auto bottom hold mode The minimum value from the start of measurement can be measured automatically. 5

6 Quick operation for tolerance differentiation Set the input range according to the input signal using the DIP switches. (Refer to page 9) 2. Connect the input signal cable to terminals 5 and 6 and the power supply cable to terminals 25 and 26 (Turn the power ON and input an analog signal from a sensor. The RD will display data according to the input signal level.) 3. Set the tolerance limits. (Refer to page 14.) Displacement sensor Analog input RD Comparator output Open-collector output HH value HI value LO value LL value Connecting the RD series to an analog output sensor enables easy tolerance differentiation. 6

7 Section 1 I/O Preparation This section describes the procedure for connection to analog output equipment and the procedure for setting the input range on the RD.

8 1.1 Part names Main display: Displays measured/set value TIMING LED: Lights when synchronous signal is input Compatrator output indicators SELECT No. Display: Displays tolerance/set values Operation keys DIP switches for setting input range DIP switch for locking panel key operation Operation keys Key Name Function ZERO CALL AUTO-ZERO key CALL key Resets the value on the main display to "0000". Calls a desired tolerance value. SET MODE LIN. SET key MODE key LINEAR key ENTER key Selects the tolerance setting number. Enters the tolerance setting mode. Recalls the mode name (A to J) and sets the operation mode. Selects the multi-point digital linearizer setting number. Enters the multi-point digital linearizer setting mode. Registers each function /mode setting. Cancels errors. 8

9 1.2 Setting the input range Turn the power OFF and set DIP switches 1 and 2 as shown below to select the desired input range. DIP switch 1 DIP switch 2 - O F F - ± 5 VDC range OFF OFF 1 2 DIP switches for setting input range ± 10 VDC range ON OFF to 20 ma DC range ON or OFF ON 2 Allowable input voltage (current) ± 5 VDC range ± 6V ± 10 VDC range ± 12 V 4 to 20 ma DC 0 to 24 ma 1.3 Panel key operation lock function Use this function to inhibit the operation of the front panel keys Setting DIP switch 3 ON disables front panel key operation. 3 - O F F - DIP switch for locking panel key operation 9

10 1.4 Connections NPN output (HH) NPN output (HI) NPN output (GO) NPN output (LO) NPN output (LL) GND NPN output (peak/bottom) 24 VDC Interface connector GND Synchronous input Auto-zero input GND Hold reset input GND EXT1 EXT2 EXT2 External setting input N.C. 0 V Analog voltage output 0 V + 0 V + 0 V IN1 (input X) IN2 (input Y) N.C V terminal (Terminals 2 and 4 are connected internally.) 3, 4.. Analog voltage output terminals (Output impedance: 100 Ω) 5, 6, 7, Analog input terminals Synchronous input terminal Inputs a synchronous signal when this terminal is grounded Auto-zero input terminal Resets the value on the main display to "0000" when this terminal is grounded Hold-reset input terminal When this terminal is grounded: (1) Resets the hold status of the open-collector output. (2) Resets each hold mode. 15, 16, External setting input terminals Selects the desired set of tolerance limits from the 8 sets of preset tolerance values. The relationship between SELECT No. and signal inputs to EXT 1, EXT 2 and EXT 3 is as follows: Terminal Select No. EXT 1 EXT 2 EXT 3 0 OFF OFF OFF 1 ON OFF OFF 2 OFF ON OFF 3 ON ON OFF 4 OFF OFF ON 5 ON OFF ON 6 OFF ON ON 7 ON ON ON * "ON" indicates the condition where the EXT terminal is grounded HH OUT (Open-collector output) Outputs when the measured value exceeds the HH limit value. (40 V, 100 ma max.) HI OUT (Open-collector output) Outputs when the measured value is between the HH and HI limit values. (40 V, 100 ma max.) GO OUT (Open-collector output) Outputs when the measured value is within the tolerance range. (40 V, 100 ma max.) LO OUT (Open-collector output) Outputs when the measured value is between the LL and LO limit values. (40 V, 100 ma max.) LL OUT (Open-collector output) Outputs when the measured value falls below the LL limit value. (40 V, 100 ma max.) Peak (Bottom) detection output terminal (Open-collector output) Outputs when the peak (bottom) value is detected. (40 V, 100 ma max.) 25, Power supply terminals VDC ± 10% 10, 12, 14, GND terminals Note Terminals 2 and 4 are isolated from terminals 6 and 8. Do not short-circuit these terminals to each other or to the 0V power supply terminal

11 1.4.1 Interface connector pin assignment RD-50E(W) (NPN Open-collector or non-voltage contact signal can be input) Pin No. Signal name Pin No. Signal name 1 Input 1 9 Input 2 2 Data processing 1 10 Data processing 2 3 Data processing 3 11 Data processing 4 4 Offset 1 12 Offset 2 5 Offset 3 13 Bank 1 6 Bank 2 14 N.C. 7 GND 15 GND 8 GND RD-50R(W) (RS-232C I/O) Pin No. RS-232C signals Description of signals Input/ Output 1 Shield Common to signal ground. 2 SD (TXD) Receives data from external equipment. Input 3 RD (RXD) Transmits measurement data to external equipment. Output 4 RS (RTS) Enables output of measurement data when ON (High). Input 5 CS (CTS) ON (High) when power is turned ON. Output 6 DR (DSR) ON (High) when power is turned ON. Output 7 SG (GND) Signal ground 8 CD (DCD) ON (High) when power is turned ON. Output 11

12 1.5 I/O circuit Input circuit Input to SYNCHRONOUS (terminal 9), AUTO-ZERO (terminal 11) and HOLD RESET (terminal 13) IN GND Input to EXT 1 (terminal 15), EXT 2 (terminal 16), EXT 3 (terminal 17) and connector pins (RD-50E(W)) IN GND 3 kω Input to analog input terminal INPUT X (terminal 5) and INPUT Y (terminal 7) IN 0 V 1.5 kω 100 Ω +15 V 15 V Output circuit +24 V B +5 V 470 Ω 3 kω 250 Ω A 1 MΩ 0 V Open-collector output [HH OUT (terminal 18), HI OUT (terminal 19), GO OUT (terminal 20), LO OUT (terminal 21), LL OUT (terminal 22), PEAK/BOTTOM (terminal 24)] or IN GND Input non-voltage contact (relay, etc.) signals or NPN open-collector signals to IN and GND. Use terminals 10, 12, 14 or 23 as grounding terminals. All ground terminals are connected internally. or IN GND Input non-voltage contact (relay, etc.) signals or NPN open-collector signals to IN and GND. Use terminals 10, 12, 14 or 23 as grounding terminals. All ground terminals are connected internally. A :± 5 VDC, ± 10 VDC B :4 to 20 ma DC The 0 V terminals (6 and 8) and GND terminals are not connected internally. NPN output GND Analog voltage output (terminals 3 and 4) Output 0 V 47 Ω 0 V 47 Ω The 0 V and GND terminals are not connected internally. 12

13 Section 2 Display & Tolerance Setting This section describes the procedure for setting tolerance values and use of the AUTO- ZERO function.

14 2.1 Setting tolerance Tolerance limits (HH, HI, LO, LL) can be set on the RD for 5-level differentiation (HH, HI, GO, LO, LL) and up to 8 sets of tolerance limits (Tolerance Nos. 0 to 7) can be stored. (Tolerance No. H indicates the hysteresis setting mode. For details on hysteresis setting, refer to page 16.) Key sequence SET 1. Press the key to enter the tolerance setting mode. 2. Using the or key, select the tolerance number (0 to 7). SET or 3. Press the key to register the tolerance number. The RD automatically proceeds to the HH setting mode. The tolerance number changes every time the UP or DOWN key is pressed. HH HI GO LO LL 4. Using the or key, set the desired tolerance value. or Press the key or the key to increment or decrement, respectively, the displayed value. Holding the or key pressed in causes the displayed value to change in larger steps. 5. Press the key to register the tolerance value. The RD automatically proceeds to the HI setting mode. HH HI GO LO LL 6. Perform steps 4 and 5 above. The RD automatically proceeds to the LO setting mode. HH HI GO LO LL 7. Perform steps 4 and 5 above. The RD automatically proceeds to the LL setting mode. 8. Perform steps 4 and 5 above. The RD returns to the measurement mode. HH HI GO LO LL 14

15 Tolerance limits can be set between the values and CALL When the key is pressed in the tolerance setting mode, the latest tolerance setting is recalled. If you attempt to set HH less than HI, HI less than LO, or LO less than LL, "Err0" appears on the main display and the value cannot be entered. Press the key again and set a correct tolerance value. SET When you enter the tolerance setting mode by pressing the key, no output signal will turn ON while the tolerance settings are being performed. If an output is ON when SET the key is pressed, the ON status will be maintained. 2.2 Calling tolerance The preset tolerance values (HH, HI, LO, LL) corresponding to the current tolerance number can be confirmed Key sequence HH HI GO L O LL TIMING SELECT No. Tolerance No.0 RD-50R CALL 1. Press the key. CALL HH HI GO LO LL CALL Press the key. CALL The preset HH value corresponding to tolerance No. 0 appears on the main display. HI, LO and LL values are displayed in this sequence. CALL 5. Press the key. The RD returns to the measurement mode. CALL SET To change the preset tolerance in the tolerance calling mode, press the key to enter the tolerance setting mode. (Refer to page 14.) To return to the measurement operation in the tolerance calling mode, press the key. The RD continues measurement/differentiation even in the tolerance calling mode. 15

16 2.3 Setting hysteresis The hysteresis margin for the comparator output (HH, HI, GO, LO, LL) has been factory-set to 5 points (lowest digit). To change the hysteresis margin, perform the following operation Key sequence SET 1. Press the key to enter the tolerance setting mode. SET 2. Using the or key, select tolerance No. H. or 3. Press the key to enter the hysteresis setting mode. 4. Using the or key, set the hysteresis margin. or Press the key or the key to increment or decrement, respectively, the displayed value. Holding the or key pressed in causes the displayed value to change in larger steps. 5. Press the key to register the hysteresis margin. The RD returns to the measurement mode Timing diagram Hysteresis margin HH value HI value LO value LL value (t) ON HH OUT OFF ON HI OUT OFF ON GO OUT OFF ON LO OUT OFF ON LL OUT OFF The hysteresis margin can be set between the values 0 and

17 2.4 Auto-zero function The auto-zero function instantaneously resets the displayed value to "0000" Effective use The auto-zero function simplifies zero-point adjustment at product changeover. Auto-zero can be performed using any of the following three procedures: Key sequence ZERO 1. Press the key on the front panel. HH HI GO L O LL TIMING SELECT No. ZERO HH HI GO L O LL TIMING SELECT No. RD-50R 2. Ground the auto-zero input terminal 11 for an instant. 3. Send the character "V" from external equipment (computer, etc.) via the RS- 232C interface. (RD-50R(W) only) To recall the value cancelled by the auto-zero function, use either of the following procedures: ZERO 1. Press and hold in the key for three seconds. 2. Send the character "W" from external equipment (computer, etc.) via the RS-232C interface. (RD-50R(W)only) ZERO If an offset value has been set on the RD, the offset value is displayed when the key is pressed. Note When the DIP switch for locking the panel key operation is set to OFF (refer to page 9), the RD stores the displayed value every time the auto-zero function is activated. (If the power is turned OFF, the stored value is retained.) When the DIP switch for locking the panel key operation is set to ON, the auto-zero function can be activated by the external signal, the displayed value cannot be stored. To activate the auto-zero function frequently using the external signal, set the DIP switch to ON. RD-50R (The value displayed just when the [ZERO] key is released is reset to "0000". 17

18 MEMO 18

19 Section 3 Use of Functions This section describes the content of the various modes (other than the basic functions) and the procedure for setting each mode.

20 3.1 Table of modes and function numbers Mode A Function No. Average Filter Reference page Setting the number of averaging measurement/digital filter P. 22 B Input X Y X + Y X - Y P. 25 C Data processing Normal Peak Peak 2 Bottom Bottom 2 Peak-topeak Peak-topeak 2 Sample Autopeak Auto bottom P. 40 d Comparison E Digits Decimal point 5 digits/ 5 digits/ 4th digit 3rd digit 5 digits/ 2nd digit 5 digits/ No decimal point 4 digits/ 4 digits/ 4th digit 3rd digit 2nd 4 digits/ digit P. 26 P. 28 F Offset P. 29 G Output form Normal H Operation Front panel Hold Normal Comparison Offdelay P. 30 Terminal P. 31 I Scaling Scaling of analog voltage output P. 33 J RS-232C Setting RS-232C communication parameters P. 56 MDL (Multi-point digital linearize) function P

21 3.2 Function setting procedure Key sequence MODE 1. Press the key to enter the function setting mode. MODE 2. Using the or key, select the desired function. or Select the desired function (A to J). (With the RD-50E(W), select any of functions A to I. The selected function code will flash.) 3. Press the key to enter the function parameter mode. 4. Set the function parameters. (For details on each function, refer to pages 22 through 51.) 5. After completing the settings, select "End" using the or key. or 6. Press the key to register the function settings and return to the measurement mode. If the initial settings have been changed, the function code is displayed in red. ZERO Pressing and holding in the key in the function setting mode resets all functions (A to J) to the initial settings. To return to the measurement mode without changing any settings, press the again. MODE key 21

22 3.3 Average mode The average mode is used to set the average measurement time of input signals Effective use Used to ignore sporadic fluctuations in the input signal Used to perform high-speed differentiation Key sequence MODE 1. Press the key once and the key once to enter the average mode. 2. Using the or key, select the desired number of averaging measurement. MODE "L " and "H " indicate the digital filter mode. For details on the digital filter mode, refer to page Press the key to register the number of measurements. 4. Press the key once and the key once to return to the measurement mode Number of averaging measurement and average measurement time Main display Number of measurements *1 Measurement time (ms) *2 A-A A-A1 4 2 A-A A-A A-A A-A A-A A-A A-A A-A *1 The number of measurements has been factory-set to "A-A3" (64). *2 The average measurement time does not represent output response time. For the output response time, refer to page

23 3.4 Digital filter mode The digital filter mode is used to remove components of the analog input signal with a frequency exceeding a specified level in order to display the desired data form Effective use Low-pass filter: Used to ignore large fluctuations in the input signal and only display gradual changes. High-pass filter: Used to ignore gradual changes in the input signal and only detect sporadic fluctuations Operation diagram Using the digital filter function, you can obtain the following waveforms. Low-pass filter High-pass filter Key sequence MODE 1. Press the key once and the key once to enter the digital filter mode. 2. Using the or key, select the filter type and the cutoff frequency. (L : Low-pass filter, x : High-pass filter) MODE or ("A " indicates the average mode. For details on the average mode, refer to page 22.) 23

24 3. Press the key to register the filter type and cutoff frequency. 4. Press the key once and the key once to return to the measurement mode Filter No. and cutoff frequency Filter No. (Main display) Cutoff frequency [Hz] Filter No. (Main display) Cutoff frequency [Hz] L0 100 x0 100 L1 50 x1 50 L2 20 x2 20 L3 10 x3 10 L4 5 x4 5 L5 2 x5 2 L6 1 x6 1 L7 0.5 x7 0.5 L8 0.2 x8 0.2 L9 0.1 x

25 3.5 Input mode The input mode is used to perform addition or subtraction of analog input values from two sensors and display the result Key sequence MODE 1. Press the key once, the key once and then the key once to enter the input mode. 2. Using the or key, select the input type. MODE or Indicates X input. Indicates Y input. Indicates (X + Y) input. Indicates (X Y) input. 3. Press the key to register the input type. 4. Press the key twice and the key once to return to the measurement mode. Press the [LEFT] key twice X input Select this input mode to use X input (signals fed to terminals 5 and 6) only. Y input Select this input mode to use Y input (signals fed to terminals 7 and 8) only. (X + Y) input Select this input mode to add X and Y. This input mode allows thickness measurement of an object using two sensors. (X - Y) input Select this input mode to subtract Y from X. This input mode allows height difference measurement of an object using two sensors. 25

26 3.6 Comparison mode The comparison mode is used to detect sporadic fluctuations in measured values by comparing the current measured value with the average of previous measurements What the comparison mode mean Number of measurements Input value Displayed value Value to be compared at the next input 1 D 1 N 1 = D 1 2 D 2 D 2 - N 1 N 2 = 1/2(N 1 + D 2 ) 3 D 3 D 3 - N 2 N 3 = 1/2(N 2 + D 3 ) 4 D 4 D 4 - N 3 N 4 = 1/2(N 3 + D 4 ).. * If an input value (D n ) is out of the tolerance range, the input value is not used to calculate the value to be used in the comparison at the next input Effective use Select the comparison mode to ignore gradual changes in input values due to temperature drift or unstable operation after the start-up of the unit. The unit must be operating in one of the following hold modes for the comparison mode to be enabled (Peak hold, Bottom hold, Peak-to-peak hold, or Sample hold) Key sequence MODE 1. Press the key once, the key three times and the key once to enter the comparison mode. 2. Using the or key, select the comparison mode (1).. n D n D n - N n -1 Nn = 1/2(N n -1 = D n ) MODE Press the [RIGHT] key three times.. "1" is displayed when the or key is pressed once. Normal mode Comparison mode 3. Press the key to register the comparison mode. 26

27 4. Press the key four times and the key once to return to the measurement mode. Press the [LEFT] key four times. To reset the comparison mode, use either of the following procedures: 1) Ground the hold reset terminal 13 for an instant. 2) Send the character "Q" from external equipment (computer, etc.). When a data processing mode other than peak hold, bottom hold, peak-to-peak hold or sample hold mode has been selected, the comparison mode is disabled. 27

28 3.7 Digits/Decimal point mode The digits mode is used to delete the last digit on the main display. The decimal point mode is used to shift the decimal point to a desired position Key sequence MODE 1. Press the key once, the key four times and the key once to enter the digits/decimal point mode. 2. Using the or key, select the desired number of digits/decimal point position. Press the [RIGHT] key four times. MODE or Number of displayed digits 5 Decimal point position 4th digit 5 3rd digit 5 2nd digit 5 No decimal point 4 4th digit 4 3rd digit 4 2nd digit 3. Press the key to register the number of digits/decimal point position. 4. Press the key five times and the key once to return to the measurement mode. Press the [LEFT] key five times Even when the number of displayed digits is set to four (" "" " or " " is displayed), the tolerance values are displayed in 5 digits. The actual measured value, rather than the displayed value, is used for comparison with the tolerance values. When the decimal point on the main display is shifted, the decimal point on the tolerance display is also shifted. 28

29 3.8 Offset mode The offset mode allows any value to be added to or subtracted from the displayed value. Up to 8 offset values can be stored. (Offset Nos. 0 to 7) Key sequence Example To change "1.000" (current displayed value) to "0.800", set the offset value to "-0.200". MODE 1. Press the key once, the key five times and the key once to enter the offset mode. 2. Using the or key, select the offset number (0 to 7). MODE Press the [RIGHT] key five times. or 3. Press the key to register the offset number. 4. Using the or key, set a desired offset value. or In this example, press the key to set the offset value to "-0.200". 5. Press the key to register the offset value. 6. Press the key six times and the key once to return to the measurement mode. Press the [LEFT] key six times. Offset values can be set in the range of ± ZERO If you press the key in the measurement mode after setting an offset value, the preset offset value appears on the main display. 29

30 3.9 Output form mode The output form mode is used to select the form of open-collector output (HH, HI, GO, LO, LL) which indicates that the measured value exceeds the tolerance limit Key sequence MODE 1. Press the key once, the key six times and the key once to enter the output form mode. 2. Using the or key, select the output form. MODE Press the [RIGHT] key six times. or Normal output Hold output Off-delay output 3. Press the key to register the output form. 4. Press the key seven times and the key once to return to the measurement mode. Press the [LEFT] key seven times Normal output The comparator output serves as make-contact (Normally Open) signals. Hold output Holds the normal output. Continues holding the output until the hold-reset signal is input. Does not hold the GO output. Off-delay output The normal output is delayed by 60 ms (OFF-delay). 30

31 3.10 Operating method selection mode The function/mode settings on the RD can be changed using the front panel keys or by terminal operation. This mode is used to select the operating method (front panel, terminal operation or interface connector). <RD-50E(W)> Items selectable in this mode: Tolerance No. Input mode Data processing mode Offset No. MDL function bank No Key sequence MODE 1. Press the key once, the key three times and the key once to enter the operating method selection mode. 2. Using the or key, select the item to be changed. MODE Press the [LEFT] key three times. or Tolerance No. Input mode Data processing mode Offset No. MDL function bank No. 3. Press the key to register the selected item. 4. Using the or key, select the operating method. or Front panel operation Terminal operation 5. Press the key to register the operating method. 6. Press the key twice and the key once to return to the measurement mode. Press the [RIGHT] key twice. 31

32 <RD-50R(W)> Items selectable in this mode: Tolerance No Key sequence MODE 1. Press the key once, the key four times and the key once to enter the operating method selection mode. 2. Using the or key, select the operating method. MODE Press the [LEFT] key four times. or Front panel operation Terminal operation 3. Press the key to register the operating method. 4. Press the key three times and the key once to return to the measurement mode. Press the [RIGHT] key three times. When the terminal operation is selected, tolerance numbers cannot be changed via the RS-232C interface. 32

33 3.11 Analog voltage output function An analog voltage, in the range ±10 V, proportional to the input (displayed) value is output through terminals 3 and 4. Output (v) Display -10 Analog output span function The span function is used to change the ratio of the analog output voltage relative to the input (displayed) value. Display Input Analog output shift function The shift function is used to change the analog output voltage by addition or subtraction of a specified value. Display Input Key sequence Example Set the span value to "2.000" and the shift value to "-5.000". MODE 1. Press the key once, the key eight times and the key once to enter the span mode. MODE Press the [RIGHT] key eight times. 2. Using the or key, set a desired span value. or In this example, press the key to set the span value to "2.000". 3. Press the key to register the span value and enter the shift mode. 33

34 4. Using the or key, set a desired shift value. or In this example, press the key to set the shift value to "-5.000". 5. Press the key to register the shift value. 6. Press the key once (twice for the RD-50R(W)) and the key once to return to the measurement mode. Press the [RIGHT] key once (twice). <How to obtain the analog output span/shift value> Let X = displayed value,y = voltage to be output, a = span value, and b = shift value. Then, Y = ax + b. (Calculation example) To change the analog output to between V and V when the displayed value changes between 0000 and 2000: Substitute the above values into Y = ax + b. Then, 1 = b and 5 = 2a + b. The result is, a = 2, and b = 1. <Before span/shift adjustment> Output(V) Output(V) <After span/shift adjustment> 0 2 Display 0 2 Display The span value cannot be set to "0.000". If the span value is set to "0.000", "Err1" appears on the main display. Press the key and set a correct span value. 34

35 3.12 MDL (Multi-point Digital Linearize) function The MDL function is used to correct the analog input signal to display/output a linear signal. Display Display Input Up to 4 sets of correction methods (number of correction points and correction values) can be set on the RD. (Setting Nos. 1 to 4) Key sequence <Principal flow> 1. Select and register the setting number. 2. Select and register the number of correction points. (The number of correction points indicates the number of points at which the analog input signal is corrected. The number of correction points can be selected from 2, 4, 8, 16 and 32 points.) Example: Number of correction points: 4 Number of correction points: 2 Input 3. Select and register the method of setting input values (values yet to be corrected). The input value setting method can be selected from the following three methods: (1)By using the operation keys. (2)By using the X input (input to terminals 5 and 6). (3)By using the Y input (input to terminals 7 and 8). 4. Set an input value. 5. Set a theoretical value (corrected value). 6. Repeat steps 4 and 5 according to the number of correction points. 7. Register the input and theoretical values. 35

36 LIN. 1. Press the key to enter the MDL mode. 2. Using the or key, select the desired setting No. LIN. or Select "0" when the MDL function is not used. 3. Press the key to register the setting No. 4. Using the or key, select the desired number of correction points. or 5. Press the key to register the number of correction points. 6. Using the or key, select the input value setting method. or By using operation keys By using X input By using Y input 7. Press the key to register the input value setting method. When 0 is selected, proceed to step 8. When 1 or 2 is selected, proceed to step Using the or key, set an input value. or Press the key or the key to increment or decrement, respectively, the displayed value. Holding the or key pressed in causes the displayed value to change in larger steps. The input value is displayed in red. 36

37 9. Press the key to register the input value. 10. Using the or key, set a theoretical value. or The theatrical value is displayed in green. 11. Press the key to register the theatrical value. 12. Repeat steps 8 to 811 according to the number of correction points. 13. Press the key to register the input and theoretical values. 14. Set the X (Y input) input to the desired value. Press the key to register the input value. 15. Using the or key, set a theoretical value. or Press the key or the key to increment or decrement, respectively, the displayed value. Holding the or key pressed in causes the displayed value to change in larger steps. 16. Repeat steps to according to the number of correction points. 17. Press the key to register the input and theoretical values. 37

38 ZERO To clear the registered input/theoretical value, hold down the key for at least 3 seconds when setting the input or correction value. (All input/theatrical values are reset to "0.000".) Ensure that the input value increases regularly as the correction point number becomes larger. For example, do not set the input value of correction point 1 larger than the that of correction number 2. Attempting to do so will result in "Err2" appearing on the main display. Ensure that the input value increases or decreases regularly as the correction point number becomes larger. Failure to do so will result in "Err2" appearing on the main display and the input value unable to be set. If you proceed to the subsequent step without setting input and correction values, "Err3" appears on the main display. To assign correction values, use banks 1 and 2 and banks 3 and 4 in pairs, respectively. When you select a bank, the correction value of that bank is assigned to the X input and the correction value of the other bank in the pair is assigned to the Y input. (See the following table.) Bank No. to assign Bank used for correction X input Y input Bank 1 Bank 1 Bank 2 Bank 2 Bank 2 Bank 1 Bank 3 Bank 3 Bank 4 Bank 4 Bank 4 Bank 3 Input values and theoretical values can be set between ± When you press the or key while setting input values, the correction point number can be shifted. CALL When you press the key while setting input values, the correction value at the current correction point can be confirmed. To change bank number only, select the bank number, then press the key and hold it until "End" is displayed. 38

39 Section 4 Data processing mode This section describes the contents of the data processing modes and how to set each mode.

40 4.1 Table of data processing modes The RD has the following 7 data processing modes. For details on each mode, refer to the descriptions given on the reference page. Mode Function Reference page Normal Outputs/displays measured value at any time. p. 41 Peak hold Bottom hold Measures the maximum value during a specified period. Measures the minimum value during a specified period. p. 42 p. 44 Measures the difference between the maximum p. 46 Peak-to-peak hold and minimum values during a specified period. Sample hold Measures the value at a specified time. p. 48 Auto peak hold Auto bottom hold Holds the maximum value from the start of measurement. Holds the minimum value from the start of measurement. p. 49 p. 50 * For details of the functions related to the above data processing modes {peak (bottom) detection output function}, refer to page

41 4.2 Normal mode The normal mode outputs measured values at any time Key sequence MODE 1. Press the key once, the key twice and the key once to enter the data processing mode. MODE Press the [RIGHT] key twice. 2. Confirm that "0" flashes on the display. If the display value is not "0", set the value to "0" using the or key. or 3. Press the key to register the normal mode. 4. Press the key three times and the key once to return to the measurement mode. Press the [LEFT] key three times Timing diagram HH value HI value LO value LL value (t) HH OUT HI OUT GO OUT LO OUT ON OFF ON OFF ON OFF ON OFF LL OUT ON OFF ON Synchronous input OFF *The comparator output is retained when the synchronous input is ON 41

42 4.3 Peak hold mode The peak hold mode is used to measure the maximum value during a specified period. One of two types of peak hold modes can be selected according to the sampling period. 1) Data processing mode (-1: Peak hold mode with a sampling period from the rising edge of the synchronous input signal until the next rising edge of the signal. 2) Data processing mode (-2: Peak hold mode with a sampling period from the falling edge of the synchronous input signal until the next rising edge of the signal Key sequence MODE 1. Press the key once, the key twice and the key once to enter the data processing mode. MODE Press the [RIGHT] key twice. 2. Select "1" or "2" using the or key. or or 3. Press the key to register the peak hold mode. 4. Press the key three times and the key once to return to the measurement mode. Press the [LEFT] key three times. 42

43 4.3.2 Timing diagram Data processing mode "(-1" (V) Peak hold value Input value 0[V] Sampling period Sampling period Sampling period (t) Synchronous input ON OFF Power-ON or hold-reset input Data processing mode "(-2" (V) "-----" appears on the main display until the synchronous input is turned ON first after the power is turned ON or the hold-reset signal is input. Peak hold value Input value 0[V] Sampling period Sampling period Sampling period (t) Synchronous input ON OFF Power-ON or hold-reset input "-----" appears on the main display until the synchronous input is turned ON first after the power is turned ON or the hold-reset signal is input. To clear the hold value and resume measurement, use either of the following procedures: 1. Ground the hold-reset terminal 13 for an instant. 2. Send the character "Q" from external equipment (computer, etc.). (RD- 50R(W)) 43

44 4.4 Bottom hold mode The bottom hold mode is used to measure the minimum value during a specified period. One of two types of bottom hold modes can be selected according to the sampling period. 1) Data processing mode (-3: Bottom hold mode with a sampling period from the rising edge of the synchronous input signal until the next rising edge of the signal. 2)Data processing mode (-4: Bottom hold mode with a sampling period from the falling edge of the synchronous input signal until the next rising edge of the signal Key sequence MODE 1. Press the key once, the key twice and the key once to enter the data processing mode. MODE Press the [RIGHT] key twice. 2. Select "3" or "4" using the or key. or or 3. Press the key to register the bottom hold mode. 4. Press the key three times and the key once to return to the measurement mode. Press the [LEFT] key three times. 44

45 4.4.2 Timing diagram Data processing mode "(-3" Bottom hold value Sampling period Sampling period Sampling period (t) Synchronous input ON OFF Power-ON or hold-reset input "----" appears on the main display until the synchronous input is turned ON first after the power is turned ON or the hold-reset signal is input. Data processing mode "(-4" Bottom hold value Sampling period Sampling period Sampling period (t) Synchronous input ON OFF Power-ON or hold-reset input "----" appears on the main display until the synchronous input is turned ON first after the power is turned ON or the hold-reset signal is input. To clear the hold value and resume measurement, use either of the following procedures: 1. Ground the hold-reset terminal (13) for an instant. 2. Send the character "Q" from external equipment (computer, etc.). (RD- 50R(W)) 45

46 4.5 Peak-to-peak hold mode The peak-to-peak hold mode is used to measure the difference between the maximum and minimum values during a specified period. One of two types of peak-to-peak hold modes can be selected according to the sampling period. 1) Data processing mode (-5: Peak-to-peak hold mode with a sampling period from the rising edge of the synchronous input signal until the next rising edge of the signal. 2) Data processing mode (-6: Peak-to-peak hold mode with a sampling period from the falling edge of the synchronous input signal until the next rising edge of the signal Key sequence MODE 1. Press the key once, the key twice and the key once to enter the data processing mode. MODE Press the [RIGHT] key twice. 2. Select "5" or "6" using the or key. or or 3. Press the key to register the peak-to-peak hold mode. 4. Press the key three times and the key once to return to the measurement mode. Press the [LEFT] key three times. 46

47 4.5.2 Timing diagram Data processing mode "(-5" (V) Peak-to-peak hold value (P' b') P (P b) P' b Sampling period b' Sampling period (t) Synchronous input ON OFF Power-ON or hold-reset input Data processing mode "(-6" "----" appears on the main display until the synchronous input is turned ON first after the power is turned ON or the hold-reset signal is input. Peak-to-peak hold value (P' b') P (P b) P' b Sampling period b' Sampling period (t) Synchronous input ON OFF Power-ON or hold-reset input "----" appears on the main display until the synchronous input is turned ON first after the power is turned ON or the hold-reset signal is input. To clear the hold value and resume measurement, use either of the following procedures: 1. Ground the hold-reset terminal (13) for an instant. 2. Send the character "Q" from external equipment (computer, etc.). (RD- 50R(W)) 47

48 4.6 Sample hold mode The sample hold mode is used to measure the value at a specified time Key sequence MODE 1. Press the key once, the key twice and the key once to enter the data processing mode. MODE Press the [RIGHT] key twice. 2. Select the sample hold mode ("7") using the or key. or 3. Press the key to register the sample hold mode. 4. Press the key three times and the key once to return to the measurement mode. Press the [LEFT] key three times Timing diagram (V) Sample hold value Input value 0 [V] (t) Synchronous input OFF Power-ON or hold-reset input "-----" appears on the main display until the synchronous input is turned ON first after the power is turned ON or the hold-reset signal is input. To clear the hold value and resume measurement, use either of the following procedures: 1. Ground the hold-reset terminal 13 for an instant. 2. Send the character "Q" from external equipment (computer, etc.). (RD- 50R(W)) 48

49 4.7 Auto peak hold mode The auto peak hold mode is used to measure the maximum value from the start of measurement Key sequence MODE 1. Press the key once, the key twice and the key once to enter the data processing mode. MODE 2. Select the auto peak hold mode ("8") using the or key. or 3. Press the key to register the auto peak hold mode. 4. Press the key three times and the key once to return to the measurement mode Timing diagram Auto peak hold value Synchronous input ON OFF ON Hold-reset input OFF ON Peak detection output OFF To clear the hold value and resume measurement, use either of the following procedures: 1. Ground the hold-reset terminal (13) for an instant. 2. Send the character "Q" from external equipment (computer, etc.). (RD- 50R(W)) (t) 49

50 4.8 Auto bottom hold mode The auto bottom hold mode is used to measure the minimum value from the start of measurement Key sequence MODE 1. Press the key once, the key twice and the key once to enter the data processing mode. MODE 2. Select the auto bottom hold mode ("9") using the or key. or 3. Press the key to register the auto bottom hold mode. 4. Press the key three times and the key once to return to the measurement mode Timing diagram Synchronous input ON OFF ON Hold-reset input OFF ON Bottom detection output OFF Auto bottom hold value To clear the hold value and resume measurement, use either of the following procedures: 1. Ground the hold-reset terminal (13) for an instant. 2. Send the character "Q" from external equipment (computer, etc.). (RD- 50R(W)) (t) 50

51 4.9 Peak (bottom) detection output function The peak (bottom) detection output is turned ON when a peak (bottom) value is detected Data processing modes for using the peak (bottom) detection output The peak (bottom) detection output can be used in the data processing modes marked with a circle. Peak output Bottom output Normal Peak hold Bottom hold Peak-to-peak hold Sample hold Auto peak hold Auto bottom hold Conditions under which the peak (bottom) detection output turns ON (t) ON Peak detection output OFF (* The peak detection output is a one-shot signal with a 1 ms (Normal mode)/ 60 ms (Hold mode) duration.) The RD detects a peak (bottom) value when the input value falls below the peak value or rises above the bottom value by a specified margin, as shown on the left Output condition The peak (bottom) detection output is turned ON when the input value falls below the peak value or rises above the bottom value by a margin of "hysteresis margin x 2". (For details on hysteresis setting, refer to page 16.) 51

52 MEMO 52

53 Section 5 Interface This section describes the method of remote operation of the data processing and input modes.

54 5.1 RD-50E(W) By inputting a NPN open-collector or a non-voltage contact signal into the interface connector port, the following operations can be performed. 1) Selection of the desired input mode 2) Selection of the desired data processing mode 3) Selection of the offset No. 4) Selection of the desired bank No. (MDL function) Interface connector pin assignment Pin No. Signal name Pin No. Signal name 1 Input 1 9 Input 2 2 Data processing 1 10 Data processing 2 3 Data processing 3 11 Data processing 4 4 Offset 1 12 Offset 2 5 Offset 3 13 Bank 1 6 Bank 2 14 N.C. 7 GND 15 GND 8 GND 16 The RD-50E(W) requires one second to resume operation after receiving a mode switch signal. Therefore, do not input a mode switch signal during this period. 54

55 5.1.2 Relationship between selected mode and signal input into each pin Pin No. Input mode 9 (Input 2) 1 (Input 1) X OFF OFF Y OFF ON (X + Y) ON OFF (X - Y) ON ON Data processing mode Pin No. 11 (Data processing 4) 3 (Data processing 3) 10 (Data processing 2) 2 (Data processing 1) Normal OFF OFF OFF OFF Signal input except those shown below Peak OFF OFF OFF ON Peak 2 OFF OFF ON OFF Bottom OFF OFF ON ON Bottom 2 OFF ON OFF OFF Peak-to-peak OFF ON OFF ON Peak-to-peak 2 OFF ON ON OFF Sample OFF ON ON ON Auto peak ON OFF OFF OFF Auto bottom ON OFF OFF ON Pin No. Offset No. 5 (Offset 3) 12 (Offset 2) 4 (Offset 1) 0 OFF OFF OFF 1 OFF OFF ON 2 OFF ON OFF 3 OFF ON ON 4 ON OFF OFF 5 ON OFF ON 6 ON ON OFF 7 ON ON ON Pin No. Bank No. 6 (Bank 2) 13 (Bank 1) 1 OFF OFF 2 OFF ON 3 ON OFF 4 ON ON 55

56 5.2 RD-50R(W) The RD-50R(W) can communicate with an external computer via the RS-232C interface connector port. Remote operations such as data transmission and setting changes can be performed. Communication parameters (Defined as a "MODEM" that conforms to EIA RS-232C.) Duplex Synchronization Data format Baud rate Data length Parity check Stop bit length Delimiter Full Connector pin assignment Start-stop ASCII 300/600/1200/2400/4800/9600 bits/sec (selectable) 7/8 bits (selectable) Even/odd/none (selectable) 1 bit/2 bits (selectable) CR/STX/ETX (KV mode) (selectable) Pin No. Modem signal code Modem signal Direction 1 Shield Common to signal ground SD (TXD) Input data from external equipment Input 3 RD (RXD) Output measurement data to external equipment Output 4 RS (RTS) Enables output of measurements to external equipment when ON (High) Input 5 CS (CTS) ON (High) at power-on Output 6 DR (DSR) ON (High) at power-on Output 7 SG (GND) Signal ground CD (DCD) ON (High) at power-on Output Connection to a personal computer Use the special connector cable (straight: OP-95688) to connect the RD-50R(W) to a personal computer. The wiring of the connector cable is shown on the right. Connector cable: OP (3-m cable with two 25-pin D-SUB connectors) RD-50R(W) Shield 1 SD 2 RD 3 RS 4 CR 5 DR 6 SG 7 CD 8 25-pin D-SUB connector Personal computer Shield SD RD RS CR DR SG CD To enable the RD-50R(W) to communicate with a personal computer, ensure that the communication parameters of the RS-232C agree with the those of the computer. * To set the parameters of your personal computer, refer to its instruction manual pin D-SUB connector 56