General Specifications GS J08X0-0E FX Series Computing Units (Variable/Fixed Software Type) Moving Average Unit, Dead Time Unit, Velocity Unit, First Order Lug Unit, First Order Lead Unit, Velocity Limiter, Peak Holder, Bottom Holder, Analog Memory, Program Setter, Programmable Unit General The JUXTA FX Series, Computing unit (Variable/ Fixed Software Type) receives a voltage input signal, applies various computing functions to it, and outputs isolated DC current or DC voltage signals to controllers or recorders. List of Computing Units Table. List of FX Series Descriptions Moving Average Unit (Fixed software type) Dead Time Unit (Fixed software type) Velocity Unit (Fixed software type) First Order Lug Unit (Fixed software type) First Order Lead Unit (Fixed software type) Velocity Limiter (Fixed software type) Peak Holder (Variable software type, with contact input for holding) Bottom Holder (Variable software type, with contact input for holding) Analog Memory (Variable software type, with contact input for holding) Program Setter (Variable software type) Programmable Unit (Variable software type, with contact input) Models : V or A FX-MA FX-DT FX-VC FX-LG FX-LE FX-VL FX-PH FX-BH FX-AM FX-PS FX-FP Ordering Information Specify the Model, Suffix codes and the range when ordering. (Refer to Functions for other items which need to be specified when ordering.) Model and suffix codes: e.g. FXA-MA-A*B range: e.g. to V DC Specificatons signal: Refer to Table signals point of DC voltage signal point of DC voltage signal, point of contact input Table. Signals point of contact input FX-PS Model and Suffix codes FX-MA, FX-DT, FX-VC, FX-LG, FX-LE, FX-VL FX-PH, FX-BH, FX-AM, FX-FP Model and Suffix Codes FX--*B Model (See Table ) A: Current signal V: Voltage signal Function (See Table ) : Voltage signal 0: Custom order (Current signal) See Table [Model FXA] [Model FXV] A: to 0 ma DC : 0 to 0 mv DC B: to 0 ma DC : 0 to 00 mv DC C: to ma DC : 0 to V DC D: 0 to 0 ma DC : 0 to 0 V DC E: 0 to ma DC : 0 to V DC F: 0 to 0 ma DC : to V DC G: 0 to ma DC : -0 to +0 V DC Z: (Custom order) 0: (Custom order) Current signal Voltage signal See Table See Table V DC±0% Measuring range: Refer to Table signal DC voltage signal Table. Measuring Range Measuring range Specify within 0 to 0 V DC when voltage is applied (Span: V or more) resistance: MΩ (00 kω or more during power off) Allowable applied voltage: - to + V DC Contact signal: For the models with contact inputs only Close: 00 Ω or less Open: 00 kω or more Contact detection: 9 V, 0. ma DC Yokogawa Electric Corporation -9-, Nakacho, Musashino-shi, Tokyo, 80-80 Japan Tel.: 8---9 Fax.: 8---9 GS J08X0-0E Copyright Mar. 00(YK) nd Edition Aug. 0, 00(YK)
Specifications signal: DC current signal or DC voltage signal Allowable load resistance: Refer to Table range Table. signals range to 0 ma DC: 0 Ω or less 0 to 0 mv DC: 0 kω or more to 0 ma DC: 00 Ω or less 0 to 00 mv DC: 0 kω or more to ma DC: 000 Ω or less 0 to V DC: kω or more 0 to 0 ma DC: 0 Ω or less 0 to 0 V DC: 0 kω or more 0 to ma DC: 900 Ω or less 0 to V DC: kω or more 0 to 0 ma DC: 00 Ω or less to V DC: kω or more 0 to ma DC: kω or less -0 to +0 V DC: 0 kω or more Standard Performance Accuracy rating: ±0.% of span Note that the accuracy is not guaranteed for output levels less than 0.% of the span of 0 to X ma output range type. FX-FP: ±0.% of span (when ; %=; %) Response speed: 00 ms, % response (0 to 90%) Computation cycle: 00 ms Insulation resistance: 00 MΩ or more at 00 V DC between input and output, output and power supply, and input and power supply. Withstand voltage: 00 V AC/min. between (input and output) and power supply. 00 V AC/min. between output and power supply. Custom Order Specifications signal: DC current signal - Refer to Table resistance x ( curent) shall be within the measuring span of voltage input signal. Table. Acceptable Range for Signals signal resistance signal 0 to 0 ma DC 00 Ω 0 to 0 ma DC 0 Ω to 0 ma DC 0 Ω 0 to ma DC 0 Ω to 0 ma DC 00 Ω 0 to 0 ma DC 00 Ω to ma DC kω 0 to ma DC kω signal: Refer to Table resistance Table. Acceptable Range for Signals Current signal Voltage signal range 0 to ma DC -0 to +0 V DC Span to ma DC 0 mv to 0 V DC Zero elevation 0 to 00% -00 to +00% Environmental Conditions Operating temperature range: 0 to 0 C Operating humidity range: to 90% RH (no condensation) voltage: V DC±0% Effect of power supply voltage fluctuations: ±0.% or less of span for fluctuation of V DC±0% Effect of ambient temperature change: ±0.% of span or less for a temperature change of 0 C. Current consumption: V DC 0 ma (FXV), 8 ma (FXA) Mounting and Dimensions Material: ABS resin (Case body) Mounting method: Rack, Wall, or DIN rail mounting Connection: M screw terminal External dimensions: x x mm (H x W x D) Weight: Approx.0 g Standard Accessories Tag number label: Mounting block: Mounting screw: M screw x All Rights Reserved. Copyright 00, Yokogawa Electric Corporation GS J08X0-0E Aug. 0, 00-00
Terminal Assignments S FX-MA, -DT, -VC, -LG, -LE, -VL Check terminal (+) (+) /Check terminal (-) (+) (-) (+) (-) FX-PS Start/Reset (+) Do not use this terminal Start/Reset (-) (+) (-) (+) (-) FX-PH, -BH, -AM, -FP Hold (+) (+) /Hold (-) (+) (-) (+) (-) S: FX-MA; Moving average time setting volume FX-DT; Dead time setting volume FX-VC; Velocity computation time setting volume FX-LG, -LE; Time constant setting volume FX-VL; Velocity limit value setting volume Block Diagrams FX -MA, -DT, -VC, -LG, -LE, -VL Reference voltage (0 to V) Check terminal Low drift input processing Microprocessor Computation Insulation FX -PS Reference voltage Start/Reset Low drift input processing Microprocessor Computation Zero adjustment Span adjustment Insulation Communication interface Handy Terminal (JHT00) or PC-Based Parameter Setting Tool (VJ) All Rights Reserved. Copyright 00, Yokogawa Electric Corporation GS J08X0-0E Aug. 0, 00-00
FX -PH, -BH, -AM, -FP Reference voltage Hold Low drift input processing Microprocessor Computation Zero adjustment Span adjustment Insulation Communication interface Handy Terminal (JHT00) or PC-Based Parameter Setting Tool (VJ) External Dimensions Unit: mm -Φ. Mounting hole DIN rail mounting 99 90 Rack mounting Wall mounting All Rights Reserved. Copyright 00, Yokogawa Electric Corporation GS J08X0-0E Aug. 0, 00-00
Functions FX-MA Moving Average Unit This computing unit outputs the average of 0 input data (X) sampled at intervals of one-twentieth of the moving-average time (L). At the next sampling, the unit discards the oldest data and outputs the average of the 0 data, repeating the same operation. The output between samplings is smoothed out by interpolation. <Example> X+X+...X0 Moving average (Y) = 0 <Example> more (00% when X-X L = 00%) When the input has decreased: 0% or less (0% when X-X L = -00%) Y= X-X L + 0% X: Present X L: of the last velocity computation Y: 00% X X X X X 0 X 9 X 8 X X X X Computation time Time 0% 00% 0% Computation cycle Setting range of moving average time: 0 to 000 sec. (0 to V) with significant digits, minimum unit is sec. Moving average time can be set by the volume of front panel and monitored by check terminal. Accuracy of moving average and time constant setting: (±.0% of set value) ±.0 sec. FX-DT Dead Time Unit This computing unit stores the input values (X) sampled at intervals of one-twentieth of the dead time (L) into 0 buffers and outputs data (Y) by orderly shifting them after the dead time has elapsed. The output between samplings is smoothed by interpolation. Y= e -LS +TS X X:, L: Dead time Y:, T: Time constant <Example: 0% 00% step input> Setting range of dead time: 0 to 000 sec. (0 to V) with significant digits, minimum unit is sec. Dead time can be set by the volume of front panel and monitored by check terminal. Accuracy of dead time and time constant setting: (±.0% of set value) ±.0 sec. FX-VC Velocity Unit This computing unit calculates the input velocity by subtracting the input of the last velocity computation (X L ) from the present input (X). The unit then adds a 0% bias to one-half of the obtained velocity and outputs the result (Y). The output obtained is as follows: When there is no change in input: 0% When the input has increased: 0% or L Setting range of velocity computation time: 0 to 000 sec. (0 to V) with significant digits, minimum unit is sec. Velocity computation time can be set by the volume of front panel and monitored by check terminal. Accuracy of velocity computation and time constant setting: (±.0% of set value) ±.0 sec. FX-LG First Order Lag Unit This computing unit provides a first order lag computation on input (X) with a time constant (T) and outputs the result (Y). Y= X +TS X:, T S : Time constant, Y: <Example: 0% 00% step input> 0%.% 0% T 00% 00% Setting range of time constant:.0 to 00.0 sec. (0.00 to.000 V); minimum unit is 0. sec. Time constant can be set by the volume of front panel and monitored by check terminal. Accuracy of time constant setting: (±.0% of set value) ±.0 sec. All Rights Reserved. Copyright 00, Yokogawa Electric Corporation GS J08X0-0E Aug. 0, 00-00
FX-LE First Order Lead Unit This computing unit provides a first order lead computation on input (X) with a time constant (T) and outputs the result (Y). TS Y= ( + ) X +TS X:, T S : Time constant, Y: <Example: 0% 0% step input> 0% 8.% 0% T 0% 00% 0% Setting range of time constant:.0 to 00.0 sec. (0.00 to.000 V); minimum unit is 0. sec. Time constant can be set by the volume of front panel and monitored by check terminal. Accuracy of time constant setting: (±.0% of set value) ±.0 sec. FX-VL Velocity Limiter This computing unit limits the input (X) velocity at the ascending velocity limit for a positive change, at the descending velocity limit for a negative change, and outputs the limited value (Y). When the input velocity (slope) is not more than the limit, the unit outputs the input as it is. <Example: 0% 00% 0% step input> 0% 0% Ascending velocity limit (%/min.) 00% 00% Descending velocity limit (%/min.) Setting range of velocity limit: 0. to 00.0%/min.; minimum unit is 0. %/min. Setting the limit at 00.0%/min. or above does not limit the input, so the unit simply outputs the input as it is (Open limit function). Velocity limit value can be set by the volume of front panel and monitored by check terminal. 0 to 000%/min. corresponds to 0.00 to.000 V. Setting accuracy of velocity limit: (±.0% of set value) ± %/min. FX-PH Peak Holder This computing unit outputs the current signal or voltage signal (Y) corresponding to the peak value when receiving a voltage signal input from various converters and opening the hold-command input (contact input). If the contact input is closed, it outputs the value corresponding to the input value. FX-BH Bottom Holder This computing unit outputs the current signal or voltage signal (Y) corresponding to the bottom value when receiving a voltage signal input from various converters and opening the hold-command input (contact input). If the contact input is closed, it outputs the value corresponding to the input value. FX-AM Analog Memory This computing unit holds the output signal (Y) at the moment when receiving a voltage signal input from various converters and opening the hold-command input (contact input). If the contact input is closed, it outputs the value corresponding to the input value. FX-PS Program Setter This computing unit starts the program when opening start/reset input (contact input), and outputs the isolated current or voltage signal (Y) internally generated. When closing the start/reset input, the program is reset. The output signal changes with the time lapse corresponding to the time table breakpoints. Setting conditions of time table: 0.0 sec. (t 0 to t 0 ) 98 sec., -0.0% (Y 0 to Y 0 ) 0.0% t 0 < t < t < t < t < t < t < t < t 8 < t 9 < t 0 Time breakpoints: t 0 to t 0 breakpoints: Y 0 to Y 0 Setting resolution: Time; 8 sec., s; 0.% <Example> OUT Time Ordering information Time table: Write and specify all data of t 0 to t 0 and Y 0 to Y 0 on the work sheet below. <Work Sheet> Model and suffix code: t0 t t t t t t t t8 t9 t0 Time (sec.) (%) Y0 Y Y Y Y Y Y Y Y8 Y9 Y0 FX-FP Programmable Unit Receiving a voltage signal input from various converters, this computing unit performs various computations and outputs the isolated current or voltage signal. All Rights Reserved. Copyright 00, Yokogawa Electric Corporation Subject to change without notice. GS J08X0-0E Aug. 0, 00-00