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1.5  HLd - Hold of signal on input A.

When the digital input is active, the input signal is held at the value it 
had when activated.
Possible selections are EnA 

[Enable hold],

 or dSA

 [Disable hold].

1.0  PAr for root extraction and raising to a power. [Function no. 7]

1.1  P1 - Scale factor. 

A typical value is 1.0.
Possible selections are -99...999. 

[Factor]

1.2 P2 - Exponent.

A value of 00.5 is the square root of the input signal, and 002 is the 
input signal raised to the second power.
Valid selections are -99...999. 

[Exponent]

1.3  P3 -Calculation offset.

A typical value is 0.0.
Valid selections are -99...999. 

[Factor]

1.4 CH - Input.

Possible selections are A or B. 

[Input]

1.5  LCO - Cut off low values.

The values are entered in % of the input span. Input values smaller 
than LCO are considered a 0% input signal.
A typical value is 0.5 for root extraction and 0.0 for power.
Valid selections are 0...100. 

[Per cent]

1.0  PAr for Hold and Peak. [Function no. 8 and 9]

1.1  P1 - No function.

1.2  P2 - No function.

1.3  P3 - No function.

1.4 CH - Input.

Possible selections are A or B.

 [Input]

1.0  PAr for Delay.  [Function no. 10]

1.1  tAU - Time constant. 

Valid selections are 0...999. 

[Seconds]

53

1.3  P3 - Calculation offset.

A typical value is 0.0.
Valid selections are -99...999. 

[Factor]

1.4  CH - Input for subtraction.

If A has been selected the result is A - B.
If B has been selected the result is B - A.
Possible selections are A or B. 

[Input]

1.5  HLd - Fixing of signal on input A.

When the digital input is active, the input signal is fixed on the value it 
had when activated.
Max. and Min. functions are not available.
Possible selections are EnA

 [Enable hold], 

or dSA

 [Disable hold].

1.6  OOr - Input signal less than the selected 0% value.

When the selected input span of the A and B channels is for instance 
4...20 mA, input signals smaller than the selected 0% value (4 mA) 
will be considered negative signals. As the mathematical rules for 
operational signs apply to the calculation functions some may consider 
this calculation incorrect.
When ON has been selected there is no limit on the input signals.
When OFF has been selected the input signals’ influence on the 
calculation functions is limited to 0...100% input span.
Max. and Min. functions are not available.
Possible selections are ON or OFF. 

[Allow negative signals]

1.0  PAr for Multiplication and Division. [Function no. 5 and 6]

1.1 P1 - Scale factor. 

A typical value is 1.0.
Valid selections -99...999. 

[Factor]

1.2 P2 - No function.

1.3 P3 - Calculation offset.

A typical value is 0.0.
Valid selections are -99...999. 

[Factor]

1.4 CH - Selection of input at division.

If A has been selected the result is A/B.
If B has been selected the result is B/A.
Possible selections are A or B. 

[Input]

52

Содержание 2289

Страница 1: ...oth loop powered and universal isolators featuring linearisation inversion and scaling of output signals PC or front programmable modules with universal options for input output and supply This range offers a number of advanced features such as process calibration linearisation and auto diagnosis A wide selection of transmitters for DIN form B mounting and DIN rail modules with analogue and digita...

Страница 2: ...er 39 Signal limiter 39 Averaging transmitter 39 Slope transmitter dI dt function 39 Analogue multiplexer 40 Inputs 40 Digital input 2289A 40 Output 40 Electrical specifications 41 Order 43 Block diagrams 44 Hardware programming 46 Jumper positioning 47 External up down operation of manual controller 47 Routing diagram 48 Programming operating the function keys 50 Function description selection of...

Страница 3: ... jumpers can now be moved When assembling the back plate and housing please make sure no wires are stuck 37 DECLARATION OF CONFORMITY As manufacturer PR electronics A S Lerbakken 10 DK 8410 Rønde hereby declares that the following product Type 2289 Name Signal calculator is in conformity with the following directives and standards The EMC Directive 2004 108 EC and later amendments EN 61326 1 For s...

Страница 4: ...e of the input over a set period to an analogue output signal The min and max slope to be converted are entered in of the input span The slope can be selected as either positive or negative By means of a pressure transmitter the dI dt function is suitable for for instance leak monitoring or flow measurement of substances with a high viscosity grade 39 SIGNAL CALCULATOR 2289 Two analogue inputs Mul...

Страница 5: ... max value Input resistance Nom 50 Ω 41 ANALOGUE MULTIPLEXER At a deactivated digital input input A x P1 is sent to the output At an activated digital input input B x P2 is sent to the output P1 and P2 are scaling factors for the two inputs INPUTS ANALOGUE INPUTS 2289A The A and B inputs can be programmed according to your choice to receive current signals in the range 0 20 mA for instance 4 20 mA...

Страница 6: ...P Pull down 0 VDC 6 9 mA Pulse length 50 ms Pt100 input 2289B Measurement range 99 850 C Min measurement range span 50 C Max offset 50 of selec max value Cable resistance per wire max 25 Ω Sensor current Nom 1 25 mA Response time 100 ms Basic accuracy 0 2 C Temperature coefficient span 100 C 0 01 C Camb span 100 C 0 01 of span Camb Immunity influence span 100 C 1 of span span 100 C 0 5 of span Eff...

Страница 7: ...BLOCK DIAGRAM 2289B 45 BLOCK DIAGRAM 2289A 44 ...

Страница 8: ...AL CONTROLLER Channel A 0 20 mA 0 10 VDC JP4 ON JP4 OFF MENU 2 3 I MENU 2 3 U Channel B 0 20 mA 0 10 VDC JP3 ON JP3 OFF MENU 3 3 I MENU 3 3 U NPN PNP JP6 ON JP6 OFF Output JP1 JP2 JP5 MENU 4 3 0 10 mA 0 20 mA OFF OFF OFF ON 1 2 0 500 mV 0 1000 mV ON OFF OFF ON 3 4 0 5 V 0 10 V OFF ON OFF ON 5 6 ...

Страница 9: ...nnel selection Menu 5 1 14 Function Averaging 1 1 Averaging time 1 2 Stack size 1 14 1 3 Channel selection Time constant in s 0 slope in 100 slope in Sampling in s 1000 Sampling in s If no buttons are pressed for a period of 20 minutes the display returns to default 0 0 Fast Setting Fast Setting Store and exit fast setting 040 Enable change in all stages Disable change Routing diagram Function sel...

Страница 10: ... max and min Valid selections are 99 999 Factor 51 PROGRAMMING OPERATING THE FUNCTION KEYS DOCUMENTATION FOR ROUTING DIAGRAM GENERAL The programming is menu controlled The main menus are numbered in level 0 X 0 and the submenus are numbered in level 1 X 1 to X 5 Each submenu has an accompanying entry menu The menus are structured in such a way that the menus most frequently used are closer to the ...

Страница 11: ... CH Input for subtraction If A has been selected the result is A B If B has been selected the result is B A Possible selections are A or B Input 1 5 HLd Fixing of signal on input A When the digital input is active the input signal is fixed on the value it had when activated Max and Min functions are not available Possible selections are EnA Enable hold or dSA Disable hold 1 6 OOr Input signal less...

Страница 12: ...value is entered in of the output span Valid selections are 0 100 Per cent 1 2 IH Maximum output value The maximum output value is entered in of the output span Possible selections are 0 100 Per cent 55 1 2 CH Input Possible selections are A or B Input 1 0 PAr for PID controller Function no 11 1 1 SEt Setpoint The setpoint value is entered in of the input span Valid selections are 0 99 9 Per cent ...

Страница 13: ...Valid selections are current 0 0 20 0 mA or voltage 0 0 10 0 VDC For modules with a Pt100 input the valid 0 temperature is 99 850 C 57 1 3 IE Internal external signal limiter When I has been selected the other analogue input is disabled and the signal limiting follows the set IL and IH values When EL has been selected the high limit will follow the set IH value while the low limit will follow the ...

Страница 14: ... extra offset of 50 of the output span This means that the signal range starts at 15 mA and starts to limit at 20 mA At most calculations the calculation offset must be set to 0 but at complex calculations it can be used for moving the range of the output signal range 59 2 2 IAH Setting of 100 input signal Valid selections are current 0 0 20 0 mA or voltage 0 0 10 0 VDC For modules with a Pt100 in...

Страница 15: ...averaging time has expired the average value is calculated by dividing the memory value by the number of measurements made and the output is then updated by this value The averaging function 61 When calculating scale factors the input and output signal spans always have values between 0 and 1 When adding 2 identically scaled input signals of for instance 4 20 mA the output would be 8 40 mA at the ...

Страница 16: ... is updated each time a period dt has expired The slope can be selected as either positive or negative The input signal can be averaged according to an exponential function so that it can be applied to noisy signals Example Minimum slope dIL 0 Maximum slope dIH 1 Period 5 seconds Analogue output 4 20 mA Result Has the input value not been changed within 5 seconds the output will be 4 mA Has the in...

Страница 17: ...65 64 ...

Страница 18: ...67 66 ...

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