Basic Composition. Merits. Presettable/Read-out Counter for High-speed Addition and Subtraction. Electronic. Counters. Maximum operating speed

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KX- Presettable/Read-out ounter for High-speed Addition and Subtraction lectronic ounters KN-S/W KN-A KV KN-B KN-T KY KX KH-B KM Maximum operating speed Basic omposition 20kHz This counter is

1 KX- Presettable/Read-out ounter for High-speed Addition and Subtraction lectronic ounters KN-S/W KN-A KV KN-B KN-T KY KX KH-B KM Maximum operating speed Basic omposition 20kHz This counter is equipped with a read-out function, setting input, and writing via full-digit static BD code. In addition, size-matched output and zero output are provided in this addition and subtraction counter for high-precision position determination. 90 phase difference in operational input for addition and subtraction Load-directed input BD input BD load/preset Dual region counter for addition and subtraction omparison circuit Preset input BD output latch circuit BD lead out Matched output Size output The KX-4 and KX-6 consist of the following elements: 1) A counter with a positive and negative region for addition and subtraction. 2) Data input (load and preset use common terminals) for BD coding. 3) Load-directed input for loading (writing) of BD input data to a counter and presetting. 4) Output latch circuit for external output of count values in BD code. ) omparison circuit for comparison of BD preset data and count values. 6) ontrolled output circuit that outputs matching, zero, and size signals using the logic circuit. ount operations Addition and subtraction counts can span both positive and negative regions. Load (writing) BD data is written in the counter via the load-directed input. Presetting BD input data is normally read by the comparison circuit. Output When count values=preset values/count values=0, respective controlled output is produced. ontrol output Merits Load input (writing of count values)/setting input/read-out (read-out/output of count values) are provided by means of input and output functions for static signals via total digit static BD coding. Thus, it can work obtaining count data and preset data from units like programmable controllers and computers is possible. 20 khz high-speed operation It can correspond to an input signal with a 90 phase difference or addition and subtraction input to allow 20 khz high-speed operation. To that end, high-speed control naturally prevents miscounts due to mechanical vibrations or backlash to allow highprecision control. Dual region positive and negative operation ounts are performed in both positive and negative regions for addition and subtraction. In addition, count values and preset values can also be loaded and preset in the positive and negative regions. With comparative output, matching, large, small, and zero outputs are provided, and comparison can be conducted in both positive and negative regions. Memory back-up upon power failure The counter has memory back-up upon a power failure via a secondary Nid battery. When power is OFF, count values are retained. In addition, gates are provided for individual input to prevent malfunctions via the power source turning ON and OFF. B-118

2 KX- Specifications Input Output Internal power source Model number KX-4(4-digit) KX-6 (6-digit) Dual phase : 20 khz/00 Hz Maximum operational speed Addition and Subtraction: 20 khz/00 Hz ount input Disabled count input Latch input Output-disabled input Input resistance VIH VIL IIL VIH VIL IIL VIH VIL IIL VIH VIL IIL Duration of input gate response upon power failure Duration of input gate response during power recovery 4.V Min.(30V Max.) (Notes 3,4, and ) 1.0V Max. ma Max. 6k Ton 2 s Toff 2 s (Notes 1 and 2) 4.V Min.(30V Max.) 1.0V Max. ma Max. Ton 2 s Toff 2 s 4.V Min.(30V Max.) 1.0V Max. ma Max. Ton 2 s Toff 2 s 4.V Min.(30V Max.) 1.0V Max. ma Max. High-speed Ton 2 s Toff 2 s Low-speed Ton 2ms Toff 2ms Reset input VIH 4.V Min.(30V Max.) VIL 1.0V Max. IIL ma Max. Ton 2 s Toff 100 s Ton 2ms Toff 2ms BD load-directed inpu VIH 4.V Min.(30V Max.) VIL 1.0V Max. IIL ma Max. Voltage input BD input Ton 10 s Toff 10 s Minus sign VIH 4. 30V Writing/setting input VIL 2V Max. Input resistance 6k Open collector =P Offdelay output 100 ma Max. (residual voltage 1. V) Zero Offdelay output Output current Relay drive possible (internal protective circuit for counter electromotive force) P Output P Output 0 s Maximum permitted voltage D4V Open collector 30 ma Max. (residual voltage 1 V) P output Output current Relay drive not possible 0 s Maximum permitted voltage D30V Voltage output BD output No-load voltage Output resistance V (when +12 V is applied to 1) 2.2k P Output IOL 20 ma (residual voltage 2 V) 2 s Source output for digital SW common Sensor power source Maximum permitted voltage Preset OUT Load OUT D4V D 30mA D 30mA D 12 V 100 ma ( V) ripple % rms Memory backup Memory duration Approx hrs (2 ) upon power failure 0 200ms 0 00ms (Note 7) (Note 6) KN-S/W KN-A KV lectronic ounters KN-B KN-T KY KX KH-B KM Notes: 1) Ton: Ondelay duration 2) Toff: Offdelay duration 3) VIH: High-level input voltage (non-operational) 4) VIL: Low-level input voltage (operational) ) IIL: Low-level input current (current flowing from counter input terminals to an input device) 6) Output current: current that can flow to open collector transistors 7) When H4(13) and ( and ) are short-circuited B-119

3 KX- lectronic ounters KN-S/W KN-A KV KN-B KN-T Model number KX-4(4-digit) KX-6(6-digit) Operational display Withstand voltage A2000 V 1 minute between ground and power source terminals Vibration resistance onforms to JIS 0911 Durability: displacement amplitude 0. mm 10- Hz along three axes No malfunction: displacement amplitude 0.3 mm 10- Hz along three axes Insulation resistance D00 V more than 20 M between ground and power source terminals Source voltage A90 132V A V 0/60Hz Power consumption 16VA Ambient temperature 10 0 Storage temperature 20 0 (during transportation, is possible on the order of 1 week) Ambient humidity/storage humidity 3-8% RH (with no dewing) Weight 1.0kg Accessories Metal fittings for installation and a card edge connector Block Diagram H3 H1 H2 INA Addition input INB Subtraction input Switching between phase difference/addition and subtraction Switching between 20 khz/00 Hz ount input ount input Input processing Minus sign input 14 BD load input/preset input (common for load/preset and terminals) BD input circuit Up/Down counter P output Offdelay output LD driver P output 2 8 P OUT OFF Delay P OUT INH 4 Disabled count input omparison circuit Zero Offdelay output 3 Zero OUT OFF Delay KY RH 7 High-speed reset output Gate 6 Zero OUT RL 8 Low-speed reset output P Output 7 P OUT Setting input circuit KX Latch 6 BD latch input P Output 9 P OUT OUT INH 9 Output-disabled input Output for load selection 13 Load OUT H4 Load IN Load-directed input Output latch circuit Output for preset selection 14 Preset OUT Vcc 1 KH-B 10 0 OUT BD read-out Output for sensor power source 1 0.1A KM 4 H k 2.7k 6.8k 1.k 2.7k 8.2 B-120

4 KX- Operations Setting input Addition and subtraction counts are performed via an independent addition/subtraction signal or a dual-phase signal for a 90phase difference. Switching operational speed between 20 khz/00 Hz is possible. ounting operations Addition and subtraction counts are performed for counts in both positive and negative regions. After loading count values via BD data, count signals are input and addition and subtraction counts are performed with this loaded data. Positive and negative display is indicated only with a minus sign. x.: Substraction count Input signal Display Loading and presetting The minus sign input terminal and BD input terminal data is loaded (written) into the counter or becomes preset data input depending on the Load instruction state. Load-directed input BD input and minus sign input H Preset data is input L Loaded data is input ontrol output for load input terminals at the L level is locked out. ount input is given preference for loading (even when count input is added, forced loading will take place if the load-directed input is at the L level). If load-directed input is changed to BD data and the like at the L level, the loaded data (count values) will also change accordingly. If load-directed input is at the H level, BD data will become preset data. In this condition, changing the BD data will change preset values accordingly. If the load-directed input is at the H level, preset data is usually compared to count values. When a load direction is via a relay, H4(13) and ( and ) must be short-circuited. ontrolled output ount values for load-directed input at the H level are usually compared to setting values. In this condition, the following controlled outputs are produced. P output P output P output : count values/p: setting values Note) These outputs are output only in conditions for count values and setting values. Outputs other than the 4 outputs above are the =P Offdelay output and the zero Offdelay output. output or zero output Offdelay output Zero Offdelay output All controlled output is in open collector format. BD read-out/minus sign output ount values are usually output via BD coding. In addition, minus sign data is usually output. These data outputs have a latch function and are held (latched) via BD latch terminals at the L level. As a result, count data can be easily input into a programmable controller, computer, or the like. BD latch input BD latch input terminals at the L level, count display, BD readout data, and minus sign data are latched (retained). At this time, count values and minus sign values will change if there is count input. However, these outputs and count displays are latched as-is. Note : Timing to perform latching of BD data is a rise in BD latch input terminals. When BD latch input terminals reach the H level again, the BD read-out and sign outputs will be output as current BD data and sign data. Reset input ount values are reset to 0. When count values are loaded, they are given preference in loading and count values will become 0. Operational chart Addition input Subtraction input Load values Preset values 0 Reset input Load input output output output output Offdelay Output ZeroOffdelay Output approx. 0 ms approx. 0 ms Offdelay approx. 0 ms KN-S/W KN-A KV lectronic ounters KN-B KN-T KY KX KH-B KM B-121

5 KX- lectronic ounters KN-S/W KN-A KV KN-B KN-T KY Terminal Arrangement Name Signal Signal Name Name Signal UA UB Signal Name Sensor power source 1 1 Vcc IN Read-out voltage input A1 P OUT D B1 OFF Delay INA Offdelay output ount input A2 Zero OUT 3 3 INB OFF Delay D2 4 4 B2 Switching to BD input format H3 4 4 INH Disabled count input 3 A3 Ground D3 6 6 B3 Zero OUT 6 6 Latch Latch input A4 P OUT 7 7 RH High-speed reset input D4 8 8 B4 ontrolled output P OUT 8 8 RL Low-speed reset input 9 9 A P OUT 9 9 OUT INH Output-disabled input D B Minus sign output Load IN Load-directed input A6 Switching between dual th digit phase/addition and subtraction input H1 D B6 6th digit Switching between 20 khz/00 Hz H A Selected output Load OUT H4 Switching load input for digital SW common 1D B Preset OUT IN Minus sign input 6th digit read-out A A 6th digit read-out 2D B 6D B A mpty terminals D A power source A V 3B mpty terminals A A power source A90 132V D B mpty terminals A A power source A0V D B Note: The signal ABD in BD input and BD read-out corresponds to 1, 2, 4, and 8 codes in respective BD codes. BD load/setting input BD lead-out BD load/setting input BD read-out KX Input operating mode/output operating mode Input Output Active Low input ategory Terminal number Active High input ategory Terminal number Active Low output ategory Terminal number Active High output ategory Terminal number INA ount input (dual phase) INB 2 3 INA ount input (addition and subtraction) INB 2 3 P output P Offdelay output 8 2 Disabled count input 4 6 KH-B High-speed reset input Low-speed reset input 7 8 Zero Offdelay output P output 3 7 KM BD latch input Output-disabled input Load-directed input BD input (load/preset) Minus sign input UA1 12 UB P output 9 BD read-out Minus sign output UA13 22 UB ,16 1,16 10 B-122

6 KX- Terminals/xplanation of Their Functions Terminal number Signal xplanation 1 Sensor power source 100 ma 2 P OUT OFF Delay Open collector format 100 ma internal protective circuit for counter electromotive force 3 3 Zero OUT OFF Delay =P OUT OFF Delay When output is ON(L), the =P lamp lights up. 4 H3 The terminal or a +12 V terminal must be connected for the format output from an input device for BD input. 4 Ground (0 V common) 6 Zero OUT Open collector format 30 ma relay drive not possible. 7 P OUT Open collector format 100 ma internal protective circuit for counter electromotive force When output is ON(L), the >P lamp lights up. 3 8 P OUT Open collector format 30 ma relay drive not possible. 9 P OUT Open collector format 100 ma internal protective circuit for counter electromotive force When output is ON(L), the >P lamp lights up OUT Minus sign output Voltage output format. 11 H1 When open, 90 phase differential input format/connection with the terminal for addition and subtraction input H2 Input speed is 00 Hz via connection with the terminal Load OUT Output for selection of setting devices for loading (H level for load-directed input L) Preset OUT Output for selection of setting devices for presetting (H level for load-directed input H) th digit read-out 16 6D 8 6th digit read-out A source input A V A source input A V A source input A0 V 1 Vcc IN Terminal that provides BD read-out output voltage/connected to 1(12 V) for output voltage of 12 V 1 2 IN A ount input Dual phase/combined addition and subtraction 2 3 IN B 4 INH Disabled count input When input terminals are at the L level, counting is disabled. Ground (0 V common) 6 Latch BD latch input Latches BD lead-out and minus sign output. When input is ON(L), the Latch lamp lights up. 7 RH High-speed reset input 8 RL Reset input 9 OUT INH When output-disabled input is added, controlled output is disabled. 10 Load IN Load-directed input When input is added, BD data is loaded in the counter. When input is ON(L), the Latch lamp lights up. 11 H1 Input format Terminal for switching between dual phase/addition and subtraction (same as 11) H2 Operational speed Terminal for switching between 20 khz/00 Hz (same as 12) H4 Switching load-directed input When open, breakless input/connection with the terminal for relay input. 14 IN Minus tally input Minus tallies are loaded for load input. When input is ON(H), the -P lamp lights up. 1 6A 1 6th digit read-out 16 6B 2 6th digit read-out A source input A V A source input A V A source input A 0V Reference diagram KN-S/W KN-A KV lectronic ounters KN-B KN-T KY KX KH-B KM B-123

7 KX- lectronic ounters Terminal number Signal xplanation Terminal number Signal xplanation UA 1 1 "4" UB 1 A1 "1" 2 D1 "8" 2 B1 "2" 3 2 "4" 3 A2 "1" 4 D2 "8" 4 B2 "2" KN-S/W KN-A KV 3 "4" 6 D3 "8" 7 4 "4" 8 D4 "8" 9 "4" 10 D "8" 11 6 "4" 12 D6 "8" 13 1 "4" 14 1D "8" 1 2 "4" 16 2D "8" 6th digit 2nd diguit BD input A3 "1" 6 B3 "2" 7 A4 "1" 8 B4 "2" 9 A "1" 10 B "2" 11 A6 "1" 12 B6 "2" 13 1A "1" 14 1B "2" 1 2A "1" 16 2B "2" 6th digit 2nd diguit BD input KN-B "4" 3D "8" 4 "4" 4D "8" BD read-out A "1" 3B "2" 4A "1" 4B "2" BD read-out KN-T 21 "4" 21 D "8" Note: BD load input and BD preset input use common terminals A "1" B "2" KY KX 1 Treatment of Vcc IN terminal 1 When the output voltage for BD read-out is 12 V, the connection is per the following diagram (however, supply of D12 V to the external load is not possible in this instance). Vcc IN BD read-out circuit Vcc IN 0V k Residual voltage 2 ount input signals 1) Dual-phase input IN A 90 late phase Addition IN B 90 early phase IN A 90 early phase Subtraction IN B 90 late phase ounts with an in timing. 2) Addition and subtraction timing KH-B D 14V 1 Power 2.2 k Addition: Input in INA (INB is for the L level) Subtraction: Input to INB (INA is for the L level) 20mA 2.0V Note: With dual-phase input at a 90 phase difference and count input KM for addition and subtraction, operating modes will differ so exercise caution. When VccIn (1) is open, use is possible. In this case, output will be an open collector type. B-124

8 KX- 3) ount input: switching between dual-phase input/addition and subtraction input Dual-phase input Leave H1 terminal 11 open. Addition and subtraction input onnect H1 terminal 11 and terminal. H1 11 4) Switching between count input 20 khz/00 Hz 20kHz Leave H2 terminal 12 open. 00Hz onnect H2 terminal 12 and terminal. H omposition of controlled output (1) P ffdelay output Zero Offdelay output P output P output These outputs form the circuit structure in the figure. Output circuit 8.2 Residual voltage Treatment of H3 terminal 4 1) When the signal source that is added to BD input and IN input is voltage output H mA V Load Power source KN-S/W KN-A KV lectronic ounters KN-B Input circuits (common input circuits) Form of voltage output 2.7k BD input circuit KN-T 2.7 k 6.8k 1.k ) onditions for count input Phase-differential input Permitted operational range for input phase ) When the signal source that is added to BD input and IN input is an open collector H KY KX IN A IN B 4 KH-B IN B 2.7k Input for addition and subtraction BD input circuit KM IN A IN B Ta Ta 12. s Tb 12. s Tc 12. s Note: Treatment of step 1) or 2) must be performed. With H3 open, data will become unstable. To this end, 1 will be input when it is open. Short-circuit output that is not used to (). Tb Tc B-12

9 KX- lectronic ounters KN-S/W KN-A KV KN-B 6 omposition of controlled output (2) P output These outputs form the circuit structure in the figure. This is not a protective circuit for counter electromotive force. 1 ) Output circuit Residual voltage 30mA Load omposition and operation of the selected output for setting devices V Load OUT Preset OUT Power source Memory backup upon a power failure A secondary battery is internally mounted, so count values can be retained in memory even during long-lasting power failures. The internal battery is charged while power is supplied to the power source (charging requires approx. 0 hrs). In this condition, the duration of memory retention when power to the power source is interrupted is approx hrs (a standard value). Battery lifetime: When the duration of memory retention drops to 1000 hrs, this point is specified as the end of the battery's lifetime. In addition, having ambient temperature on the order of -30o for the counter tends to prolong battery lifetime. onnection examples Sending signals to count input terminals Proximity switch/photoelectric sensor LOWR IN A IN B KN-T 2 ) Setting device, common for presetting Setting device, common for loading Load OUT Preset OUT A Addition Proximity switch Photoelectric sensor B Subtraction KY Load IN Rotary encoder KX Load input Load input L H Preset OUT L H Load OUT H L LOWR IN A IN B Red Green White Black Open KH-B Note: ven when Load OUT and Preset Out are at the L level, exercise caution since there is no current flow capacity. TRD-J TRD-GK 7 xplanation of H4(13) KM When load-directed input is breakless, open H4(13). When load-directed input is relayed, connect H4(13) and ( or ). H4 13 B-126

10 KX- Sending signals to reset input terminals D output signal (general) LOWR D output signal LOWR RH RL RH RL Sending signals to a disabled count input gate LOWR LOWR V Latch D output signal OUT INH 9 LOWR LOWR Relay signal Latch 6 6 OUT INH 9 KN-S/W KN-A KV lectronic ounters Switch, relay, etc. 0V 9 9 KN-B Relay signal LOWR IN H D output signal Relay signal KN-T R1 R2 Relay coil D24V KY D output signal POUT ZeroOUT OFF Delay KX Application example Application to a multiplex preset counter TRD-GK -R Digital switches D1 D2 D3 Dn Red Green White Black BD input 8 2 P output Driver ircuit for selection of setting devices P Off delay output When aligned with a setting device as in the diagram on the left, diodes as shown in the illustration are required. Diode D1 BD input D2 KH-B KM B-127

11 KX- lectronic ounters Digital switches for BD data input Setting devices for loading Setting devices for setting Output for selection of setting devices When a digital switch is used as BD data, L OUT (terminal 13) and P OUT (14) serve as the voltage power source that is applied to common terminals and are interlocked with the load-directed input (terminal 10). When load-directed input is at the H level, voltage is produced for P OUT. At this time, L OUT KN-S/W KN-A KV 1 UA2 UA1 UB2 UB1 UA4 UA3 UB4 UB3 UA12 UA11 UB12 UB11 6th digit H Load input LOUT POUT becomes 0 V. Digital switch data for settings is input as setting values to the counter. When load-directed input is at the L level, the reverse occurs and voltage is produced for L OUT while P OUT becomes 0 V. When load-directed input is at the L level, loading (writing) is possible. Thus, digital switch data for loading is loaded into the counter. If load-directed data is at the H level, the counter is ready for setting again. At this point, previously loaded values will not change even if load-directed input is at the H level. KN-B KN-T KY KX Load input xternal Dimensions 1- panel thickness (in mm) Metal fittings for installation (Screw clanp torguei kg-cm or less) Square holes for embeddable installation KH-B KM The character height of the numerical display device is 12.7 mm. onnector accessories Upper Multi-connector with keys 220D-44B-208 Lower Multi-connector with 6-7 keys AB19/21 excluded 220D-40/44B B-128

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