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| Frequency/Rate Meter K3NR High-speed, Intelligent Interface Modules with Seven Operating Modes Convert Single or Dual Input Pulses to Display Values * 50-kHz input range and 0.006% accuracy for sophisticated control. * A wide selection of outputs: relay, transistor, BCD, linear, or communications. * Maximum/Minimum value hold, set value write protection, and more. * Banks with four comparative output values and four prescale values. * Prescale function available, which displays in units of actual physical parameters (length, volume, etc.). * Set value teaching, linear output range teaching, and prescale teaching are available using actual measured values. * Displays values in hours, minutes, and seconds in operating mode 6. * A startup compensation time parameter keeps the measurement operation from sending an unnecessary output for a preset period up to 99.9 s. * Built-in sensor power supply (12 VDC, 80 mA). * Compact 1/8 DIN size. * Conforms to EMC standards, EN61010-1 (IEC61010-1). * UL/CSA approved. Model Number Structure I Model Number Legend Base Units and Output Boards can be ordered individually or as sets. Refer to the Output Board Combinations table on page 130. Base Units K3NR - Output Boards K31 8 L2: L3: L4: Base Units with Output Boards K3NR 1 234 5678 Linear output (1 to 5 VDC) (see note) Linear output (1 mV/10 digits) (see note) Linear output, 4 to 20 mA + 5 transistor outputs (NPN open collector) L5: Linear output, 1 to 5 V + 5 transistor outputs (NPN open collector) L6: Linear output, 1 mV/10 digits+ 5 transistor outputs (NPN open collector) L7: Linear output, 0 to 5 VDC (see note) L8: Linear output, 0 to 10 VDC (see note) L9: Linear output, 0 to 5 VDC + 5 transistor outputs (NPN open collector) L10: Linear output, 0 to 10 VDC + 5 transistor outputs (NPN open collector) FLK1: Communication RS-232C (see note) FLK2: Communication RS-485 (see note) FLK3: Communication RS-422 (see note) FLK4: RS-232C + 5 transistor outputs (NPN open collector) FLK5: RS-485 + 5 transistor outputs (NPN open collector) FLK6: RS-422 + 5 transistor outputs (NPN open collector) 6 7 5 1 2 34 1, 2. Input Sensors Codes NB: NPN inputs/Voltage pulse inputs PB: PNP inputs 3. Supply Voltage 1: 100 to 240 VAC 2: 12 to 24 VDC 4. Display A:Basic C:Set Value LED Display 5, 6, 7, 8. Output Type Codes C1: 3 comparative relay contact outputs (H, PASS, L: SPDT) C2: 5 comparative relay contact outputs (HH, H, L, LL: SPSTNO; PASS: SPDT) C5: 5 comparative relay contact outputs (HH, H, L, LL: SPSTNC; PASS: SPDT) T1: 5 comparative transistor outputs (NPN open collector) T2: 5 comparative transistor outputs (PNP open collector) B2: BCD output (NPN open collector) (see note) B4: BCD output + 5 transistor outputs (NPN open collector) L1: Linear output (4 to 20 mA) (see note) Note: These output types are available on Basic Models only. Frequency/Rate Meter K3NR K-129 Panel indicators Ordering Information I Base Unit Input type Supply voltage NPN/Voltage pulse 100 to 240 VAC K3NR-NB1A 12 to 24 VDC K3NR-NB2A K3NR-PB1A PNP 100 to 240 VAC 12 to 24 VDC K3NR-PB2A Basic Models These models provide a present value LED and front-panel control keys. Can be connected to any Output Board, or can be used for display only without an Output Board. Set Value LED Models These models provide a present value LED, set value LED, and front-panel control keys. Can be connected to Relay, Transistor, or Combination Output Boards. K3NR-NB1C K3NR-NB2C K3NR-PB1C K3NR-PB2C I Available Output Board Combinations Output type Output configuration Output boards Base units Basic Relay contact 3 outputs: H, PASS, L (SPDT) 5 outputs: HH, H, L, LL (SPST-NO), and PASS (SPDT) 5 outputs: HH, H, L, LL (SPST-NC), and PASS (SPDT) Transistor BCD (see note) Linear 5 outputs (NPN open collector) 5 outputs (PNP open collector) 5-digit output (NPN open collector) 4 to 20 mA DC 1 to 5 VDC 1 mV/10 digits 0 to 5 VDC 0 to 10 VDC Communication boards (see note) Combination output and communication boards RS-232C RS-485 RS-422 BCD output + 5 transistor outputs (NPN open collector) 4 to 20 mA + 5 transistor outputs (NPN open collector) 1 to 5 V + 5 transistor outputs (NPN open collector) 1 mV/10 digits + 5 transistor outputs (NPN open collector) 0 to 5 VDC + 5 transistor outputs (NPN open collector) 0 to 10 VDC + 5 transistor outputs (NPN open collector) RS-232C + 5 transistor outputs (NPN open collector) RS-485 + 5 transistor outputs (NPN open collector) RS-422 + 5 transistor outputs (NPN open collector) Note: For details, refer to the Communication Operation Manual. K31-C1 K31-C2 K31-C5 K31-T1 K31-T2 K31-B2 K31-L1 K31-L2 K31-L3 K31-L7 K31-L8 K31-FLK1 K31-FLK2 K31-FLK3 K31-B4 K31-L4 K31-L5 K31-L6 K31-L9 K31-L10 K31-FLK4 K31-FLK5 K31-FLK6 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Set Value LED Display Yes Yes Yes Yes Yes ------------------Yes Yes Yes Yes Yes Yes Yes Yes Yes K-130 Frequency/Rate Meter K3NR Specifications I Ratings Supply voltage Operating voltage range Power consumption (see note) Sensor power supply Insulation resistance Dielectric strength Noise immunity Vibration resistance Shock resistance Ambient temperature Ambient humidity EMC 100 to 240 VAC (50/60 Hz); 12 to 24 VDC 85% to 110% of supply voltage 15 VA max. (max. AC load with all indicators lit) 10 W max. (max. DC load with all indicators lit) 80 mA at 12 VDC10% 20 M min. (at 500 VDC) between external terminal and case. Insulation provided between inputs, outputs, and power supply. 2,000 VAC for 1 min between external terminal and case. Insulation provided between inputs, outputs, and power supply. 1,500 V on power supply terminals in normal or common mode 1 s, 100 ns for square-wave noise with 1 ns Malfunction: 10 to 55 Hz, 0.5-mm for 10 min each in X, Y, and Z directions Destruction: 10 to 55 Hz, 0.75-mm for 2 hrs each in X, Y, and Z directions Malfunction: 98 m/s2 for 3 times each in X, Y, and Z directions Destruction: 294 m/s2 for 3 times each in X, Y, and Z directions Operating: Storage: Operating: -10C to 55C (with no icing) -20C to 65C (with no icing) 25% to 85% (with no condensation) EN61326+A1 Industry CISPR 11 Group 1 class A: CISRP16-1/-2 CISPR 11 Group 1 class A: CISRP16-1/-2 EN61326+A1 Industry EN61000-4-2: 4 kV contact discharge (level 2) 8 kV air discharge (level 3) Immunity RF-interference: EN61000-4-3: 10 V/m (amplitude-modulated, 80 MHz to 1 GHz) (level 3) Immunity Fast Transient Noise: EN61000-4-4: 2 kV (power line) (level 3) Immunity Burst Noise: 1 kV line to line (I/O signal line) Immunity Surge: EN61000-4-5: 1 kV line to line 2 kV line to ground (power line) Immunity Conducted Disturbance EN61000-4-6: 3 V (0.15 to 80 MHz) (level 2) Immunity Voltage Dip/Interrupting EN61000-4-11: 0.5 cycles, 0, 180, 100% (rated voltage) UL508, CSA22.2; Conforms to EN61326+A1, EN61010-1 (IEC61010-1) Conforms to VDE0106/P100 (finger protection) when the terminal cover is mounted. Approx. 400 g (EMI) Emission Enclosure: Emission AC Mains: (EMS) Immunity ESD: Approved standards Weight Note: A K3NR with DC supply voltage requires approximately 1 A DC as control power supply current the moment the K3NR is turned ON. Do not forget to take this into consideration when using several K3NR units. When the K3NR is not in measuring operation (e.g., the K3NR has been just turned ON or is operating for startup compensation time), the display will read "00000" and all outputs will be OFF. Frequency/Rate Meter K3NR K-131 Panel indicators I Characteristics Input signal No-voltage contact (30 Hz max., ON/OFF pulse width: 15 ms min.) Voltage pulse (50 kHz max., ON/OFF pulse width: 9 s min., ON voltage: 4.5 to 30 V/OFF voltage: -30 to 2 V) Open collector (50 kHz max., ON/OFF pulse width: 9 s min.) Connectable Sensors ON residual voltage: 3 V max. OFF leakage current: 1.5 mA max. Load current: Must have switching capacity of 20 mA min. Must be able to dependably switch a load current of 5 mA max. Operating modes 1 and 6: 0.006%rdg1 digit Operating modes 2 to 5: 0.02%rdg1 digit Operating mode 1: Operating mode 2: Operating mode 3: Operating mode 4: Operating mode 5: Operating mode 6: Operating mode 7: 7-segment LED "-" is displayed automatically with a negative input signal. Leading zeros are not displayed. Programming via front-panel key inputs. (0.0001 x 10-9 to 9.9999 x 109, decimal point can be set freely) Can be set using prescale value teaching. Max. value (peak) hold, Min. value (bottom) hold HOLD (Process value held) RESET (Maximum/minimum data reset, counting value reset) BANK (Selection of one bank out of 4 banks of set values) (Selection of one bank out of 4 banks of prescale values) Programmable with front-panel key inputs (1 to 9999). Variable linear output range (for models with linear outputs only) (note 1) Remote/Local processing (available for communications output models only) Maximum/Minimum value data reset with front panel keys Comparative output pattern selection Process time for averaging measured values Startup compensation time (0.0 to 99.9 s) Time unit display Security Memory power failure Relay contact output (3 or 5 outputs) Transistor output (NPN and PNP open collector), BCD (NPN open collector) Parallel BCD (NPN open collector) + transistor output (NPN open collector) Linear output (4 to 20 mA, 1 to 5 V) + transistor output (NPN open collector) Communication functions (RS-232C, RS-485, RS-422) Communication functions (RS-232C, RS-485, RS-422) + transistor output (NPN open collector) Rotational/circumferential speed 0.0005 to 50,000 Hz Absolute ratio 0.0005 to 50,000 Hz Error ratio 0.0005 to 50,000 Hz Rotational difference 0.0005 to 50,000 Hz Flow rate ratio 0.0005 to 50,000 Hz Passing time 0.0005 to 50,000 Hz Pulse counting 0 to 4G count (32-bit counter) Measuring accuracy (at 235C) Measuring modes and ranges (Operating modes 1 to 6 are for no-contact sensor models) Max. displayed digits Display Polarity display Zero display Prescale function HOLD functions (see note 2) External control 5 digits (-19999 to 99999) Comparative output hysteresis setting Other functions Output configuration Operating modes 1 to 6: 200 ms max. Delay in comparative 1 ms max. outputs (at transistor output) Operating mode 7: Linear output response time Operating modes 1 to 6: 220 ms max. Operating mode 7: 20 ms max. Degree of protection Front panel: NEMA4X for indoor use (equivalent to IP66) Rear case: IEC standard IP20 Terminals: IEC standard IP00 Non-volatile memory (EEPROM) (possible to rewrite 100,000 times) Memory protection Note: 1. The linear output range cannot be set when connected to a 1 mV/10-digit Linear Output Board. 2. Not effective for operating mode 7. K-132 Frequency/Rate Meter K3NR I Input/Output Ratings Relay Contact Output (Incorporating a G6B Relay) Item Rated load Rated carry current Max. contact voltage Max. contact current Max. switching capacity Min. permissible load (P level, reference value) Mechanical life Electrical life (at an ambient temperature of 23C) Resistive load (cos = 1) 5 A at 250 VAC; 5 A at 30 VDC 5 A max. (at COM terminal) 380 VAC, 125 VDC 5 A max. (at COM terminal) 1,250 VA, 150 W 10 mA at 5 VDC 50,000,000 times min. (at a switching frequency of 18,000 times/hr) 100,000 times min. (at a rated load switching frequency of 1,800 times/hr) 375 VA, 80 W Inductive load (cos = 0.4, L/R = 7 ms) 1.5 A at 250 VAC, 1.5 A at 30 VDC Transistor Output Rated load voltage Max. load current Leakage current 24 VDC max. 50 mA 100 A max. BCD Output I/O signal name Inputs REQUEST, HOLD, MAX, MIN, RESET Input signal Input current with no-voltage input Signal level Outputs DATA, POLARITY, OVERFLOW, DATA VALID, RUN Rated load voltage Max. load current Leakage current Note: Logic method: negative logic Item 10 mA ON voltage: 1.5 V max. OFF voltage: 3 V min. 24 VDC max. 10 mA 100 A max. Rating No-voltage contact input Linear Output Item Resolution Output error Permissible load resistance 4,096 0.5% FS 600 max. 500 min. 1.5% FS 1 K min. 4 to 20 mA 1 to 5 V 1 mV/10 digits (see note) Note: For the 1 mV/10-digit output, the output voltage changes for every 40 to 50 increment in the display value. I Communications Specifications Item Transmission method Synchronization method Baud rate Transmission code Communications Write Read RS-232C, RS-422 4-wire, half-duplex Start-stop synchronization 1,200/2,400/4,800/9,600/19,200/38,400 bps ASCII (7-bit) Comparative set value, prescaling value, remote/local programming, reset control of maximum/minimum values, and other setting mode items excluding communications conditions. Process value, comparative set value, maximum value, minimum value, model data, error code, and others 2-wire, half-duplex Panel indicators RS-485 For details, refer to Communication Operation Manual. Frequency/Rate Meter K3NR K-133 Connections I Terminal Arrangement Terminal Numbers Output unit Output unit Input unit 18 19 20 21 22 23 24 25 26 10 11 12 13 14 15 16 17 1 2 3 4 5 6 7 8 9 Input unit Note: Terminals 7 to 13 are connected internally. Terminals 7 and 11 are mutually isolated. Input Unit 12 VDC 80 mA + - Signal input terminal 100 to 240 VAC or 12 to 24 VDC Note: Check the power supply specifications of the model used before connecting the power supply. When inputting the external control signals and input signals through the open collector: Transistor Inputs: ON: Residual voltage must be 3 V max. OFF: Leakage current must be 1.5 mA max. The switching capacity must be 20 mA or greater. When the external signal input is short-circuited, a voltage of approximately 5 V will be applied to between the terminals 5 to 7 and the COM terminal, and a current of approximately 18 mA (nominal value) will flow. NPN Inputs External sensor 10 power supply (+) +12 V +12 V Voltage Pulse Inputs +12 V 590 820 PNP-Inputs External sensor power 10 supply (+) Input A Internal circuits 1 +12 V Input A 1 820 Internal circuits GND +12 V 590 820 +12 V GND 590 820 GND Input B 2 GND 820 590 Input B 2 Input B 4 11 10 k External sensor 11 power supply (-) GND External sensor 11 power supply (-) GND GND K3NR-NB (NPN Input/Voltage Pulse Input) NPN Open Collector Output (NPN Linear 2-wire Output) Contact Output Voltage Output Input resistance: 10 k Internal circuits 590 Input A 3 10 k 820 590 +12 V K3NR-PB (PNP Input) PNP Open Collector Output 10 10 1 +12 V INA 11 2 INB Contact 10 3 4 GND +12V 11 2 3 4 +12V 0V INA 10 1 2 11 3 INB 0V 11 1 2 INB 0V 1 4 3 4 INA INA INB NPN output sensor Note: When the contact is shortcircuited, a current of approximately 13 mA will flow at a voltage of approximately 12 V. Voltage pulse output sensor PNP output sensor Note: Connect the + side of the NPN linear 2-wire input to terminal 1 and the - side to terminal 11. Note: With voltage pulse input not from a 3-wire sensor, connect the + side to terminal 3 and the - side to terminal 11. K-134 Frequency/Rate Meter K3NR Output Units K31-C1: Relay (3 Outputs) Outputs (5 A max. at 250 VAC) H 18 19 20 21 PASS 22 23 24 L 25 26 H HH 18 19 20 21 K31-C2: Relay (5 Outputs) Outputs (5 A max. at 250 VAC) LL PASS 22 23 L 24 25 26 K31-C5: Relay (5 Outputs) Outputs (5 A max. at 250 VAC) H HH 18 19 20 21 PASS 22 23 L LL K31-T1: Transistor (NPN Open Collector) Outputs (50 mA max. at 24 VDC) HH 18 24 25 26 19 20 21 H 22 PASS 23 L 24 LL 25 COM 26 p HH 18 19 20 21 H ( PASS 23 L 24 LL 25 ) DATA OVERFLOW DATA VALID RUN COMMON REQUEST MAX. REQ. MIN. REQ. HOLD RESET POLARITY HH H PASS L LL COMMON COM 26 22 104 K31-L1, L2, L3,-L4, -L5, -L6, -L7, -L8, -L9, -L10: Linear (Terminals 21 to 26 are provided only on K31-L4, -L5, -L6, -L9, -L10.) L1, L4: 4 to 20 mA L2, L5: 1 to 5 V L3, L6: 1 mV/10 digit L7, L9: 0 to 5 VDC L8, L10: 0 to 10 VDC + - 18 19 20 48 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 1248124812481248 12 100 COMMON 101 102 103 104 Outputs (50 mA max. at 24 VDC) HH 21 H 22 PASS 23 L 24 LL 25 COM 26 K31-FLK1: RS-232C 14 15 16 17 18 19 20 21 22 23 24 25 1 2 3 4 5 6 7 8 9 10 11 12 13 SD RD Note: With K31-L4/-L5/-L6/-L9/-L10 models, terminals 19 and 26 are connected internally. K31-FLK2, -FLK5: RS-485 (Terminals 21 to 26 are provided only on K31-FLK5.) Terminator RS-485 + - 18 19 ON OFF 20 Outputs (50 mA max. at 24 VDC) HH 21 H 22 PASS 23 L 24 LL 25 COM 26 K31-FLK3, -FLK6: RS-422 (The right connector is provided only on K31-FLK6) RS-422 RDA SDA SG Output NPN Tr. (50 mA max. at 24 VDC) LL 6789 12345 Terminator ON OFF RDB SDB SG 6789 12345 K31-FLK4: RS-232C + Transistor (NPN Open Collector) * D-sub 37P Connectors for BCD output (attachment) Plug: XM2A-3701 Hood: XM2S-3711 * D-sub 25P connectors for RS-232C output (K31-FLK1) (order separately) Plug: XM2A-2501 Hood: XM2S-2511 * D-sub 9P connectors for RS-422 output (K31-FLK3 and K31FLK6) (order separately) Plug: XM2A-0901 Hood: XM2S-0911 * D-sub 9P connectors for RS-232C output (K31-FLK4) (order separately) Plug: XM2D-0901 Hood: XM2D-0911 RS-232C Output NPN Tr. (50 mA max. at 24 VDC) LL HH H COM PASS L 9876 54321 9876 54321 L PASS COM H HH SG SD RD Frequency/Rate Meter K3NR K-135 Panel indicators I Block Diagram Key switch Power supply for sensor Sensor A Sensor B GND Input circuit Frequency measurement circuit 8-bit microcomputer LED Output circuit Control input Control input circuit Waveform adjustment circuit Voltage stabilizing circuit Voltage stabilizing circuit Voltage stabilizing circuit Control power supply Power supply circuit Power supply for sensor (input circuit) Frequency measurement circuit Waveform adjustment circuit 8-bit microcomputer Control input circuit K-136 Frequency/Rate Meter K3NR Operation I Main Functions Output Pattern Selection c-out The patterns of comparative output are selectable according to the level change. Select the pattern according to the application. Startup Compensation Time stime The startup compensation time parameter keeps the measurement operation from sending an unnecessary output corresponding to instantaneous, fluctuating input from the moment the K3NR is turned ON until the end of the preset period. The compensation time can be set in a range from 0.0 to 99.9 seconds as the waiting time until the devices subject to measurement become stable after the startup of the power supply. Display ON OFF Startup compensation time Standard Output Set value HH Set value H Set value L Set value LL Comparative output HH Comparative output H PASS Comparative output L Comparative output LL Set value L 00000 displayed Time Zone Output Set value HH Set value H Set value L Set value LL Comparative output L Power supply Hysteresis hys Comparative output HH Comparative output H PASS Comparative output L Comparative output LL ON OFF The hysteresis of comparative outputs can be set to prevent the chattering of comparative outputs. Refer to page 152 for more details. Linear Output Range lset Level Output A linear output range can be set as required. A value corresponding to the maximum output value and that corresponding to the minimum output value can be set. Set value HH Set value H Set value L Set value LL 20 mA Output For the 4- to 20-mA output type Comparative output HH Comparative output H Comparative output L Comparative output LL PASS ON OFF 4 mA Lower limit Upper limit Display Note: The following setting conditions must be satisfied, otherwise no zone output will turn ON correctly. LL < L < H < HH Remote/Local Selection r-l Select remote programming when performing all settings through the host devices and select local programming when performing settings through key operation. Process Time for Averaging Measured Value Process time for averaging measured value is the time over which the measured values will be averaged. If this time is shorter than the input pulse interval, processing will be based on the input pulse interval. Frequency/Rate Meter K3NR K-137 Panel indicators I BCD Output Timing Chart A request signal from an external device (such as a Programmable Controller) is required to read BCD data. Single Sampling Data Output REQ. Max. Min. DATA All data "high" Pulse with a width of no less than 20 ms. (no more than 50 ms.) Data All data "high" DATA VALID 40 ms Approx. 30 ms 16 ms Approximately 30 ms after the REQ signal rises, a sample is taken and the DATA VALID signal is output. Read the data when the DATA VALID signal is ON. The DATA VALID signal will turn OFF in 40 ms, and then in 16 ms, the data will go OFF. Models with a BCD output have an open collector output configuration so that wired-OR connection is possible. REQ. (1) Programmable controller REQ. (1) REQ. (1) K3NR (1) K3NR (2) K3NR (3) DATA (incl. POL and OVER) and DATA VALID are wired-OR processed. The RUN, HH, H, PASS, L, and LL signals are always output regardless of the status of the REQ signal. Do not OR-wire these signals. DATA DATA VALID (1) (2) (3) * * * *The period between the DATA VALID signal and the REQ signal should be no less than 20 ms max. Continuous Data Output REQ. Max. Min. DATA All data "high" Data 1 Data 2 DATA VALID 40ms Approx. 30 ms 64ms 24ms 40ms 64ms 24ms The K3NR outputs each measurement at an interval of 64 ms when a REQ signal is ON continuously. If the HOLD signal is ON at the moment the DATA output is switched from Data 1 to Data 2 or vice versa, the output BCD data will be either Data 1 or Data 2 according to the timing of the HOLD signal. However, output data will never be below. K-138 Frequency/Rate Meter K3NR Example of Connection to Programmable Controller K3NR PC (SYSMAC) DC Input Unit 1. COMMON 2. 1 COM IN 3. 2 100 4. 4 IN IN 5. 8 IN 23. DATA VALID 24. RUN IN IN 25. COMMON Transistor Output Boards 26. REQUEST 240 +5 V Internal circuit OUT Internal circuit 240 30. RESET 240 240 31. POLARITY (Polarity: +, -) COM (0 V) 24 VDC OUT +24 V DC power supply 0V Internal circuit Frequency/Rate Meter K3NR K-139 Panel indicators Example of Connection to Display Unit K3NR 1.COMMON 2.1 3.2 100 4.4 5.8 23.DATA VALID 24.RUN 101 102 25.COMMON 26.REQUEST +5V 240 30.RESET 31.POLARITY (Polarity: +, -) V O D C B A DP LE V O D C B A DP LE V O D C B A DP LE V O Connected 240 240 240 8 8 8 SEC M7E-01D@N2 or M7E-01H@N2 M7E Digital Display Unit K-140 Frequency/Rate Meter K3NR Nomenclature 1. SV Display 7. Status Indicators 2. PV Display 3. Comparative Output Status Indicators 4. SV Display Status 8. Teaching Indicator 5. ESC Key 6. Mode Key Name 1. SV display 2. PV display 3. Comparative output status indicators 4. SV display status 5. ESC Key 6. Mode Key Functions Displays the set value or parameter. Available for Set Value LED Models only. Displays the process value in addition to the max./min. value or parameter. Displays the status of comparative output. Indicates which comparative set value is currently on the SV display. 9. RESET/TEACH Key 10. Up Key and Shift Key Used to return to the RUN mode from the Setting, Protect, or Maintenance mode. The process value, maximum value, or minimum value to be displayed can be selected. Used to enter the Setting mode. Used to allow the PV display to indicate set values sequentially. Available for Basic Models only. Used to indicate set values sequentially on the SV display. Available for Set Value LED Models only. HOLD: MAX: MIN: PROG: Lit when HOLD input is ON. Lit when the maximum value is indicated on the PV display. Lit when the minimum value is indicated on the PV display. Lit or flashes while parameters are being set. 7. Status indicators 8. Teaching indicator 9. RESET/TEACH Key 10. Up Key and Shift Key Lit when the teaching function is enabled and flashes when the K3NR is in teaching operation. The maximum value, minimum value, and counting values are reset by pressing this key. Teaching is available when the teaching function is enabled. The digit being set is scrolled by pressing the Shift Key. The set value increases by one whenever the Up Key is pressed. Frequency/Rate Meter K3NR K-141 Panel indicators Engineering Data Derating Curve for Sensor Power Supply Max. current (mA) Note: The derating curve shown is for standard installation. The derating curve depends on the mounting direction. Ambient temperature (C) K-142 Frequency/Rate Meter K3NR Dimensions Note: All units are in millimeters unless otherwise indicated. PV Display 14.2 8.2 Panel Cutouts 45+0.8 -0 92+0.8 -0 75 min. Note: The K3NR uses M3.5 terminals. A terminal cover is provided. 120 min. Frequency/Rate Meter K3NR K-143 Panel indicators Precautions !WARNING Do not touch any of the terminals while the power is being supplied. Doing so may result in electric shock. I Correct Use Long-term Use Use all products within the specified ranges. When using inside a control panel, ensure that the temperature around the product, rather than the temperature around the control panel, does not exceed the specified temperature range. Electronic products, such as this product, have a lifetime that is dependent on the lifetime of internal electronic components, as opposed to the lifetime related to the number of relay switching operations. The lifetime of these components varies with the temperature; the higher the temperature, the shorter the lifetime. Therefore, the product lifetime can be extended by lowering the internal temperature of the product. When several Frequency/Rate Meters are mounted close together (either horizontally or vertically), the internal temperature of the Frequency/Rate Meters may rise, leading to a reduction in the lifetime. In this case, take measures to cool the Frequency/Rate Meters, such as installing fans. Ensure, however, that the terminals are not cooled as this may lead to incorrect measurement. !Caution Do not allow metal objects or conductive wire cuttings to enter the product. Doing so may result in electric shock, fire, or malfunction. !Caution Do not attempt to take the product apart or touch any internal parts while the power is being supplied. Doing so may result in electric shock. !Caution Do not use the product in locations subject to flammable or explosive gases. Doing so may result in explosion. !Caution The lifetime of output relays varies greatly with the switching capacity and conditions. Consider the actual operating conditions, and use the relays within the rated load without exceeding the number of operations specified as the rated electrical life. Using relays beyond their rated electrical life may result in contact deposit or burning. Operating Environment Do not use the product in locations subject to temperatures or humidity levels above the specified ranges, or in locations subject to condensation. Do not use the product in locations subject to severe shocks or vibrations. Separate the product from machines that generate high-frequency noise, such as high-frequency welding machines and high-frequency sewing machines. Do not use the product in locations subject to dust or corrosive gases. Do not use the product outdoors or in locations subject to direct sunlight. !Caution Do not use loads exceeding the rated value. Doing so may result in damage or burning. !Caution Use a power supply voltage within the specified range. Not doing so may result in damage or burning. !Caution Use settings that are appropriate for the control system. Discrepancies between the settings and the actual control conditions may result in unexpected operation leading to damage or accidents. Operation When using models with comparative outputs, if an error occurs at the Frequency/Rate Meter, comparative output may not operate correctly. We therefore recommend that you consider providing an alarm system separately as a countermeasure. Parameter settings that allow the functions to operate properly are made, using the setting menu, at the factory prior to delivery. When using the product, change the settings as required for the application. !Caution Be sure to tighten terminal screws to the specified torque. Specified torque for M3.5 screws: 0.74 to 0.90 N*m Loose screws may result in burning or malfunction. I Application Precautions * Use a power supply voltage within the specified range. Not doing so may result in damage or burning. * Be sure to perform wiring correctly, verifying the terminal names. Incorrect wiring may result in burning. * Be sure to tighten the screws on the terminal block properly. * Do not connect anything to unused terminals. Mounting Recommended panel thickness is 1 to 3.2 mm. Panel K-144 Frequency/Rate Meter K3NR Attach the mounting bracket on the left and right sides of the Frequency/Rate Meter as shown in the illustration above and gradually tighten each screw evenly in turn by considering the balance of the tightening force until the ratchets start slipping without being further tightened. Mount the Frequency/Rate Meter as horizontally as possible. Unit Label (Provided) No product is shipped with the unit label attached. Select a unit label from the sheet provided and attach it to the Frequency/Rate Meter. Waterproof Specifications Products for which the degree of protection is not specified or models with IP@0 degree of protection do not have waterproof specifications. Noise Countermeasures Separate the product as far as possible from machines that generate high-frequency noise, such as high-frequency welding machines and high-frequency sewing machines, and machines that generate surges. Attach surge absorbers or noise filters to noise-generating peripheral devices (in particular, devices with inductance such as motors, transformers, solenoids, and magnet coils). Line filter Power input K3NR - Surge absorber K3NR In order to prevent inductive noise, wire the lines connected to the terminal block separately from power lines carrying high voltages or large currents. Also, do not wire in parallel to, or in the same cable as power lines. There are other methods that are effective for reducing noise, such as running wires along ducts and using shield lines. When using a noise filter for the power supply, check the voltage and current and install as close to the Frequency/Rate Meter as possible. Inductive Noise Countermeasure for Input Line Analog Input + Signal input - Two-conductor shield wire Processor Temperature Input Panel indicators In order to prevent the influence of induction, separate the lead wire joining the temperature sensor and the Frequency/Rate Meter from power and load lines. Using the product near radios, television sets, or other wireless devices may result in reception interference. Power input + Signal input Frequency/Rate Meter K3NR K-145 Operating Procedures I Operation in RUN Mode Reset (Enabled in operating mode 7 only.) The incremental display value can be reset using key operations. Display value COM Bank Selection BANK1 BANK2 Incremental value Incremental value after reset * Switch between the comparative set values and the prescaling values for banks 1 to 4 using the BANK 1 and BANK 2 signals. * The relationship between the BANK 1 and BANK 2 signals and the bank numbers is shown in the following table. Bank number 1 2 3 4 BANK 1 BANK 2 Comparat Prescaling ive set value value sU1.** sU1. sU2.** sU2. sU3.** sU3. sU4.** sU4. ps1.** ps1. ps2.** ps2. ps3.** ps3. ps4.** ps4. Reset input RESET * Press the RESET/TEACH Key /TEACH during incremental display to reset the incremental value and continue incremental counting operation. RESET * Reset using the RESET/TEACH Key /TEACH is not possible if reset of counting values was prohibited in Protect Mode. OFF ON OFF ON OFF OFF ON ON Checking the Bank Number Press the Shift Key for 1 s min. during measurement to display the bank number in the PV display. (The display will return to the measurement value if there is no key operation for 5 seconds.) Note: If the prescale value bank is set to OFF, then the prescaling value for each bank is fixed. Confirming Maximum and Minimum Values Press the ESC Key during measurement to display the maximum and minimum values. Measurement value Maximum value Minimum value RESET Press the RESET/TEACH Key /TEACH while the maximum or minimum value is displayed to reset the value. (This is not possible, however, if maximum/minimum value reset was prohibited in Protect Mode.) Confirming and Setting Comparative Set Values When the measurement value, the maximum value, or the minimum value is displayed, press the Mode Key repeatedly to display the comparative set values in the order HH, H, L, and LL. (With models that have an SV display, the comparative set values are displayed in the SV display.) Measurement value Maximum value Minimum value Comparative set value HH Comparative set value H Comparative set value L Comparative set value LL No key operation for 5 s No key operation for 5 s No key operation for 5 s No key operation for 5 s Note: When a comparative set value is displayed, it can be changed using the Up Key and Shift Key (if key protection is OFF). K-146 Frequency/Rate Meter K3NR I Setting Procedures The K3NR has four modes: RUN mode for normal operations, Setting mode for initial parameter input, Protect mode for lock-out configuration, and Maintenance mode for initializing set values. The parameters that are accessible on any individual K3NR will vary depending on the Output Board installed. Refer to the K3NR Operation Manual for details. RUN Mode: Remains in this mode under normal operation. The process value or the max./min. value can be monitored. Using the front panel keys, the comparative set value can be changed and max./min. value and counting value reset can be performed. Used for making initial settings. Includes settings for four menus (Set value (sUset prescaling (pscl setup (setup option (opt and the output test. sUset), pscl), setup), opt)) sUset pscl setup opt Used for locking the front key operation or parameter changes. Used for initializing set values. Setting Mode: Protect Mode: Maintenance Mode: Power ON When power is ON + Maintenance mode ESC RUN mode ESC + 1s ESC 1s ESC Setting mode sUset - Program set values s.bank Select bank no. of set values sU*.hh sU .hh Enter set value HH of bank 1 sU*. sU . h Enter set value H of bank 1 sU*. sU . l Enter set value L of bank 1 sU*. ll Enter set value LL of bank 1 sU . Note: The above is an example when the bank number is set to 1. pscl - Display prescaling p.bank Select bank no. of prescale values ps*.ax ps .ax Set the mantissa (X) of the prescale value of input A ps*.ay ps .ay Set the exponent (Y) of the prescale value of input A ps*.bx Set the mantissa (X) of the prescale value of input B ps .bx ps*.by ps .by Set the exponent (Y) of the prescale value of input B decp.* Select decimal point decp. Note: The above is an example when the bank number is set to 1. setup - Program operating mode/input sensor/serial communications Specify operating mode func Select a sensor type of input A ina Select a sensor type of input B inb =ro.ax Set the mantissa (X) of the auto zero time of input A =ro.ay Set the exponent (Y) of the auto zero time of input A =ro.bx Set the mantissa (X) of the auto zero time of input B =ro.by Set the exponent (Y) of the auto zero time of input B opt - Supplementary settings related to display or control Set the process time for averaging measured value aUg stime Set startup compensation time Select power failure memory function memo Enter hysteresis value hys c-out Select the output pattern lset.h Enter the upper limit (H) of linear output range lset.l Enter the lower limit (L) of linear output range Select the remote/local programming r-l test - Generating simulated input for testing the output function Protect mode prot - Program lock-out configuration all sUset reset mm.rst secr Enable all key protection Enable set value change prohibition Enable prohibition of counting value reset using the front panel keys Enable prohibition of max./min. value reset using the front panel keys Specify the menus to be protected against setting in the setting mode time u-no bps len sbit prty Select the display time unit Enter the unit no. for the host Select the baud rate Select the word bit length Select the stop bits Select the parity bits Panel indicators Frequency/Rate Meter K3NR K-147 I Initial Settings Power ON I Parameters Power ON Press the Mode Key Mode. for 1 s min. to move to the Setting RUN Mode Refer to Operation in RUN Mode. Press the ESC Key for 1 s. and Up Key Select the setup menu ( ) with the Mode Key and set the operating mode, the input type, and other settings. If required, set a prescale value in the prescaling menu ( ). Setting Mode 1s Set value menu Set comparative set values in the set value menu ( ). 1s Comparative set value bank - Make settings in the option menu ( ) as required. No key operation for 5 s (See note 4.) Comparative set value HH No key operation for 5 s - If necessary, generate simulated input for testing the output function in output test ( ). (See note 4.) Comparative set value H No key operation for 5 s - After completing all the settings, press the ESC Key return to RUN Mode. to Output test (See note 4.) Comparative set value L No key operation for 5 s - (See note 4.) Measurement starts. Prescaling To display rotational speeds, circumferential speeds, or other values based on input pulse calculations, the rotational speed must be multiplied by a factor input before the input pulses are measured. This factor is called a prescale value. K3NR Proximity Sensor Comparative set value LL No key operation for 5 s - Option menu 1s Process time for averaging measured value No key operation for 5 s Rotation speed (rpm) = f x 60 x a Where, f: Input pulse frequency (p/s) a: Prescale value If there are 5 pulses per rotation, then an accurate rotation speed can be calculated if a = 1/5 (= 0.2 = 2 x 10-1). In actual application, input as follows: Mantissa X = 2.0000 Exponent Y = 10-1 Auto-zero Time (Set before use.) In operation modes 1 to 6, the time to force-zero the frequency if no pulse is received for a specified period can be set. This time is called the auto-zero time. Set the auto-zero time to a value that is somewhat longer than the longest input pulse interval. (If the time setting is too long or if the factory-set value is used, the display may not return to zero even if no input pulse is received.) Time Unit Setting Setting Meaning Set in the prescaling menu Seconds Minutes Minutes and seconds Startup compensation time - No key operation for 5 s Power failure memory No key operation for 5 s Hysteresis - No key operation for 5 s Output pattern No key operation for 5 s Upper limit (H) of linear output range - No key operation for 5 s Selecting the Sensor Type NO: Voltage NC: Voltage pulse H pulse L Lower limit (L) of linear output range No key operation for 5 s - No-contact or voltage pulse input Contact input Remote/local programming No key operation for 5 s Hours, minutes, and seconds Note: The time unit can be set only if operating mode 6 (passing time) is selected. Note: If there are large discrepancies in the display select or . Note, however, that the maximum counting frequency is 30 Hz. K-148 Frequency/Rate Meter K3NR Changing Set Values By pressing the Shift Key while a parameter is displayed, the set value can be changed (setting status). The PROG status indicator will flash. Change the set value as required, and press the Mode Key to register the setting and move to the next parameter. Setting Status Protect Mode func f1 Change the set value using the Up Key and the Shift Key . PROG flashes. If there is no key operation for Next parameter 5 seconds, the setting is registered and the parameter is displayed again. Prescaling menu 1s Prescale value bank (See note 1.) - No key operation for 5 s - No key operation for 5 s - Setup menu 1s Operating mode No key operation for 5 s - (See note 4.) Input A prescale value mantissa Input A sensor type No key operation for 5 s (See note 4.) Input A prescale value exponent - No key operation for 5 s - No key operation for 5 s - No key operation for 5 s - - - Input B sensor type (See note 2.) No key operation for 5 s (See note 4.) Input B prescale value mantissa (See note 2.) Input A auto-zero time mantissa - No key operation for 5 s Input A auto-zero time exponent - No key operation for 5 s (See note 4.) Input B prescale value exponent (See note 2.) Input B auto-zero time mantissa (See note 2.) - No key operation for 5 s Decimal point No key operation for 5 s - Input B auto-zero time exponent (See note 2.) - No key operation for 5 s Time unit (See note 3.) No key operation for 5 s Communications unit number No key operation for 5 s - * In the Setting Mode, measurement stops and all outputs turn OFF. * Depending on the output type of the model used, some parameters (indicated in ) are not displayed (and hence cannot be set). * If the operating mode is changed, the prescale values and linear output range parameters will be reset to their initial values. Set the operating mode first. Note 1: Set a number in the range 2 to 4 to set more than one prescale value (i.e., to display measurements in more than one unit). 2: These parameters will be displayed if F2, F3, F4, or F5 (i.e., operating mode 2, 3, 4, or 5) is set. 3: This parameter is displayed if F6 (i.e., operating mode 6) is set. If a parameter other than 5cal is set, the prescaling menu ( p5cl ) will not be displayed. 4. A number in the range 1 to 4 will be displayed. Baud rate 1200/2400/4800/ 9600 /19200/38400bps No key operation for 5 s Word bit length 7 /8bit No key operation for 5 s Stop bits 1/ 2 bit No key operation for 5 s Parity bits / / Settings displayed in reverse colors are defaults. Frequency/Rate Meter K3NR K-149 Panel indicators Power ON * Measurement stops in Protect Mode. RUN Mode Press the ESC Key and Up Key for 1 s. * Depending on the output type of the model used, some parameters (indicated in displayed (and hence cannot be set). ) are not Protect Mode Protect menu All key protection Set value change prohibition Reset prohibition Maximum/minimum value reset prohibition prot 1s all (See note.) sUset Displayed only for models with comparative outputs. reset mm.rst Menus protected in Setting Mode secr Note: Press the Shift Key to make it possible to set or change parameters. Key-protection ON: kpon Key-protection OFF: kpoff Menu display Parameter display Meaning of parameter All key protection: All key operations are prohibited in RUN Mode. (If all key protection is ON, only the key for going to Protect Mode is enabled.) Setting range Setting key (See note.) Use the Up Key to change the setting. prot Press the Mode Key to display the parameter. all Setting: kpon kpoff Next parameter: sUset Setting: Next parameter: reset Press the ESC Key to return to the menu. Setting: Next parameter: Set value change prohibition: Changes to comparative set values are prohibited in RUN Mode. (Displayed only for models with comparative outputs.) kpon Key protection ON: Reset prohibition: Key protection OFF: kpoff Resetting using the front panel keys is prohibited. (Resetting by external signals is not prohibited.) Maximum/minimum value reset prohibition: Resetting of maximum and minimum values using the front panel keys is prohibited. (Resetting by external signals is not prohibited.) Menus protected in Setting Mode: Setting operations in Setting Mode are prohibited in the way shown below. Setting menu 0 Set value menu Prescaling menu Setup menu Option menu x Setting 1 2 x x x x Use the Mode Key to enable the setting and move to the next parameter. mm.rst Setting: Next parameter: secr Setting: Next parameter: Use the Up Key to change the setting. 0 1 2 0 /1/2 Use the Mode Key to enable the setting and move to the next parameter. Note: If there is no key operation for 5 seconds, the setting is automatically registered. K-150 Frequency/Rate Meter K3NR I Troubleshooting When an error occurs, error details will be displayed in the PV display. Take the appropriate countermeasures according to the error displayed. Error display Error contents Comparative output m1.err (M1.ERR) Memory error m2.err (M2.ERR) m3.err (M3.ERR) OFF OFF Output status BCD output OFF (all outputs in "H" status) OFF (all outputs in "H" status) Communications output OFF OFF Linear output OFF OFF Reset the power. If the same error occurs, repair is necessary. Reset the power while holding down the ESC Key, the Up Key, and the RESET/TEACH Key. The settings will be returned to their initial values. Redo the settings. If the same error occurs, repair is necessary. Reset the power. If the same error occurs, repair is necessary. If normal operation is restored, it is possible that the original error was caused by the influence of noise. Check that there are no sources of noise in the vicinity. Take steps to ensure that the input values and display values are within the allowable ranges. If an attempt to change a setting using key operations is made with the remote/local selection set to remote, this error will flash for 3 s. To enable settings to be changed, set the remote/local selection to local. Countermeasure err-o (ERR-O) chg-o (CHG-O) Output error OFF OFF (all outputs in "H" status) OFF OFF (minimum value) (Display value flashes.) The input range and Continues display range were exceeded. Continues Continues Continues Continues The OVER signal The OVER or UNturns ON. DER signal turns ON. Continues Continues Continues The remote/local rmt (RMT) (Flashes for 3 s.) section is set to remote. Frequency/Rate Meter K3NR K-151 Panel indicators Additional Information I Output Operation Timing in RUN Mode (Relay or Transistor Outputs) The following timing chart is for a 5-comparative Output Board when the standard output pattern is selected. For Operating Mode 1 to 6 Display Display value HH set value H set value HYS Hysteresis HYS L set value LL set value HYS HYS HH comparative output H comparative output PASS output L comparative output LL comparative output Note: The hysteresis is set in setting mode and the hysteresis value will be applied to all set values. For Operating Mode 7 INA input RESET Display HH set value H set value Display value L set value LL set value HH comparative output H comparative output PASS output L comparative output LL comparative output Note: Comparative output L or LL turns ON when the measured value exceeds the set value. K-152 Frequency/Rate Meter K3NR I Operating Modes The K3NR provides 7 operating modes for converting input pulses to display values. The mode can be selected via key operations on the front panel. Basically, the operating modes can be divided into the following two groups. Operating Modes 1 to 6 Rotational speed and other displays are based on calculations for continuous pulses (frequency). Operating Mode 7 The number of pulses is measured. Each pulse is counted as 1 count up to a maximum of 99,999 counts. Decrementing the count is not possible. Although the limits of the display enables displaying only up to 99,999 counts, prescaling can be used to count up to 4 gigacounts. Operating mode no. 07 Pulse counting Use Example Processing Conveyor line The count is reset by shorting terminals 6 and 7 (RESET ON) or by pressing the RESET/TEACH Key on the front panel Operating mode no. 01 02 03 04 05 06 Mode No. 1: Absolute ratio Error ratio Rotation difference Flow rate ratio Passing time Rotational or circumferential speed display for 1 input Passing time display based on 1 input frequency and processing length Use Rotational/Circumferential speed Because only incrementing is possible, the L and LL comparative outputs turn ON when the measured values exceed set values. Mode No. 2 to 5: Display of calculations for two rotational speeds Mode No. 6: Basic Principles of Rotational Speed Displays The ON/OFF time (T) of a sensor input or other input is measured with the internal system clock to automatically calculate the frequency. This frequency is multiplied by 60 and displayed as a rotational speed. Input sensor pulse ON/OFF time (T) = Frequency (f) = 1/T Rotational speed (rpm) = f x 60 Circumferential speed = Circumference x Rotational speed Passing time = Processing length/Circumferential speed Automatic measuring by the K3NR is enabled simply by providing an input pulse. T Operating Mode 1: Rotational/Circumferential Speed The frequency of input A is calculated and displayed as a rotational or circumferential speed. Units: rpm; rps; rph; Hz; kHz; mm/s; m/s; m/min; km/h; l/min; l/h; etc. Application Example Panel indicators Measuring Roller Winding Speed Measuring Motor Speed (for Product Testing) H PASS L Pass/fail determination Frequency/Rate Meter K3NR K-153 Operating Mode 2: Absolute Ratio Input B is divided by input A (B/A) and then multiplied by 100 for display as a percentage. Unit: % Application Example Measuring Ratio between Rotational Speed of Two Rollers Alarm HH H PASS L LL Operating Mode 3: Error Ratio The error between input A and input B (B/A - 1) is multiplied by 100 for display as a percentage. Unit: % Application Example Measuring Difference between Two Line Speeds (Two Conveyors) Communication output (remote monitoring) To computer Operating Mode 4: Rotational Difference The difference between input B and input A (B - A) is displayed as a rotational speed error or circumferential speed error. Units: rpm; rps; rph; Hz; kHz; mm/s; m/s; m/min; km/h; l/min; l/h; etc. Application Example Measuring the Absolute Difference between the Speeds of Two Conveyors Alarm HH H PASS L LL Operating Mode 5: Flow Rate Ratio Input A and input B are used to find the concentration (B/(A+B)) as a percentage. Unit: % Application Example Monitoring the Concentration of a Liquid Mixture Linear output Recorder K-154 Frequency/Rate Meter K3NR Operating Mode 6: Passing Time The pulse frequency of input A is calculated and is displayed as the passing time for a preset distance. Units: s; min; h, min, s; min, s, 1/10 s; etc. The passing time measurement operation in operating mode 6 is ideal for measuring time corresponding to a frequency change. Operating mode 6 allows the real-time, continuous time measurement of the revolutions of any rotating object without recovery time. Application Example Passing Time for a Conveyor Line Distance Alarm output Operating Mode 7: Pulse Counting The total number of pulses on input A is displayed. 1234 5 6 7 8 9 10 12345 Application Example Counting Workpieces Input A Input B BCD Hold input Reset input Display 0 12 3 4 5 6 10 0 12345 To PC Units: count; mm; cm; m; l; kl; etc. Note: The operation of comparative outputs in operating mode 7 is different to that in other modes. Because only incrementing is possible, the L and LL comparative outputs turn ON when the measured values exceed set values. Frequency/Rate Meter K3NR K-155 Panel indicators ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. Cat. No. N087-E1-02 In the interest of product improvement, specifications are subject to change without notice. K-156 Frequency/Rate Meter K3NR |
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