Operating instructions. Electronic pressure sensor PY2068 ENGLISH

Transcription

1 Operating instructions R Electronic pressure sensor PY /00 06/00 ENGLIH

2 Contents afety instructions page 0 Controls and indicating elements page 0 Function and features page Operating modes page Installation page 3 Electrical connection page 3 Programming page 4 Installation and set-up / operation page 5 Technical information / Functioning / Parameters Adjustable parameters page 9 Technical data page 34 cale drawing page 5 ENGLIH

3 RUN RUN enü-übersicht / enu structure / tructure du menu 3 ode/enter et

4 afety instructions Read the product description before installing the unit. Ensure that the product is suitable for your application without any restrictions. Non-adherence to the operating instructions or technical data can lead to personal injury and/or damage to property. In all applications check compliance of the product materials (see Technical data) with the media to be measured. Controls and indicating elements 3 ode/enter et x LED gren Lighting LED = set display unit. x LED yellow 4-digit alphanumerical display et button ode / Enter button witching status; lights if output has switched. Display of the system pressure, display of parameters and parameter values. etting of the parameter values (scrolling by holding pressed; incremental by pressing briefly). election of the parameters and acknowledgement of the parameter values.

5 Function and features The pressure sensor detects the system pressure and evaluates the measured values according to the set parameters. Display ignal output Current system pressure in mbar, kpa, PI. Current system pressure in % of the span. NOTE: Display "0%" does not mean that the system is free of pressure! Output : witching signal (limit value for system pressure, hysteresis or window function, NO or NC). Diagnostic signal (in case of a fault output becomes inactive). Output Analogue signal (4... 0mA or mA). Analogue signal (0... 0V or V). The measuring range can be scaled to up to 5% of the value of the measuring range (max. turn down :4). Applications (Type of pressure: relative pressure) Order no. easuring range Permissible Bursting overl. pressure pressure mbar PI bar PI bar PI PY kpa = mbar 0 Avoid static and dynamic overpressure exceeding the given overload pressure. Even if the bursting pressure is exceeded only for a short time the unit can be destroyed (danger of injuries)! ENGLIH

6 Operating modes Run mode Normal operating mode At power on the unit is in the Run mode. It carries out its measurement and evaluation functions and provides output signals according to the set parameters. The display shows the current system pressure (can be deactivated; page 33). The yellow LED indicates the switching state of the output. Display mode Indication of parameters and the set parameter values When the "ode/enter" button is pressed briefly, the unit passes to the Display mode which allows parameter values to be read. The internal sensing, processing and output functions of the unit continue as if in Run mode. The parameter names are scrolled with each pressing of the "ode/enter" button. When the "et" button is pressed briefly, the corresponding parameter value is displayed for 5s. After another 5s the unit returns to the Run mode. Programming mode etting of the parameter values While viewing a parameter value pressing the "et" button for more than 5s causes the unit to enter the programming mode. You can alter the parameter value by pressing the "et" button and confirm the new value by pressing the "ode/enter" button. The internal sensing, processing and output functions of the unit continue as if in Run mode with the original parameter values unless a new value is confirmed. The unit returns to the Run mode when no button has been pressed for 5s.

7 Installation Before mounting and removing the sensor, make sure that no pressure is applied to the system. NOTE: Display "0%" does not mean that the system is free of pressure! ount the pressure sensor on a G¼ process connection. Electrical connection The unit must be connected by a suitably qualified electrician. The national and international regulations for the installation of electrical equipment must be observed. Voltage supply to EN5078, ELV, PELV. The device shall be supplied from an isolating transformer having a secondary Listed fuse rated as noted in the following table. Control-circuit wire size aximum protective device rating AWG (mm ) Ampere 6 (0.3) 4 (0.0) (0.3) 3 0 (0.5) 5 8 (0.8) 7 6 (.3) 0 Connector view (sensor) 3 4 : OUT 4: OUT OUT p-switching 4 3 BN WH BK BU L+ L : OUT 4: OUT OUT n-switching 4 3 BN WH BK BU L+ L ENGLIH Core colours of ifm sockets: = BN (brown), = WH (white), 3 = BU (blue), 4 = BK (black). Pin 4 (OUT) = switching output if OU = Hno, Hnc, Fno, Fnc Pin 4 (OUT) = diagnostic output if OU = dei Pin (OUT) = analogue output 3

8 Programming ode/enter et Press the ode/enter button several times until the respective parameter is displayed. 3 4 ode/enter et ode/enter et Change more parameters: tart again with step. Press the et button and keep it pressed. The current parameter value flashes for 5s, then the value is increased* (incremental by pressing briefly or scrolling by holding pressed). Press the ode/enter button briefly (= acknowledgement). The parameter is displayed again, the set parameter value becomes effective. Finish programming: Wait for 5s or press the ode/enter button until the current measured value is indicated again. *Decrease the value: Let the display of the parameter value move to the maximum setting value. Then the cycle starts again at the minimum setting value. elect the display unit (Uni) before setting the switch points (P, rp) or the limits for the analogue output signal (AP, AEP). This avoids rounding errors generated internally during the conversion of the units and enables exact setting of the values. etting at the factory: mbar. If no button is pressed for 5s during the setting procedure, the unit returns to the Run mode with unchanged values. Disconnect power before connecting the unit as follows: 4

9 Installation and set-up / operation The unit can be electronically locked to prevent unwanted adjustment of the set parameters: Press both pushbuttons for 0s (the unit must be in Run mode). Indication goes out briefly (acknowledgement of locking / Overload (above measuring range of the sensor). Underload (below measuring range of the sensor). Flashing: short circuit in the switching output. Flashing: internal fault *The output is switched off as long as the short circuit exists. The faults C, and Err are indicated even if the display is deactivated. unlocking). Units are delivered from the factory in the unlocked state. With the unit in the locked state is indicated briefly when you try to change parameter values. After mounting, wiring and setting check whether the unit operates correctly Faults displayed during operation Diagnostic function (according to DEINA specification) Output is used as a diagnostic output if OU = dei. If there is no fault, the output is switched and carries UB+ (if P-n = PnP) or UB- (if P-n = npn). In case of malfunctions the output becomes inactive. The following malfunctions are detected: Undervoltage (starting with 8V); overvoltage (starting with 33V); temperature at the process connection too high ((> 50 C) / too low (< -30 C); intrinsic temperature of the unit too high (> 00 C)/ too low (< -30 C); RA fault. ENGLIH 5

10 Technical information / Functioning / Parameters Adjustable parameters witch-on point Upper limit value at which the output changes its switching status. P is active only if OU = Hno, Hnc, Fno or Fnc. witch-off point / Lower limit value at which the output changes its switching status. rp is always lower than P. The unit only accepts values which are lower than P. Changing the switch-on point also changes the switch-off point (the distance between P and rp remains constant). If the distance is higher than the new switch point, it is automatically reduced (rp is set to the minimum setting value). rp is active only if OU = Hno, Hnc, Fno or Fnc. etting range: mbar kpa P rp PI Configuration of output 4 switching functions and the diagnostic function can be set: - Hno = hysteresis / normally open - Hnc = hysteresis / normally closed - Fno = window function / normally open - Fnc = window function / normally closed - dei = Output is used as a diagnostic output Configuration of output 4 analogue signals can be set: - I = current output mA - InEG = current output inverted mA - U = voltage output V - UnEG = voltage output inverted V in steps of

11 Teach zero-point calibration Automatic adaptation offset (setting range 0 bar ±5%); e.g. in the event of a deviation of the mounting location of the sensor and the zero point level for level measurement; see also parameter COF. Teach process: - ake sure that no pressure is applied to the system. - Press the "ode/enter" button until "tcof" is displayed. - Press the "et" button and keep it pressed. The current offset value (in %) briefly flashes, then the current system pressure (in the selected display unit) is displayed. - Release the "et" button. - Press the "ode/enter" button briefly (= to confirm the new offset value). Teach analogue start point (AP) The current system pressure is defined to be the start value for the analogue signal. AP = measured value at which 4mA / 0V is provided (0mA / 0V if OU = InEG / UnEG). Teach analogue end point (AEP) The current system pressure is defined to be the end value for the analogue signal. AEP = measured value at which 0mA / 0V is provided (4mA / 0V if OU = InEG / UnEG). Teach process: - et the requested minimum pressure (for AP) / maximum pressure (for AEP) in the system. - Press the "ode/enter" button until "tap" / "taep) is displayed. - Press and keep pressed the "et" button (currently set value flashes). - Release the "et" button when the display stops flashing (new set value is displayed). - Press "ode/enter" button briefly. AP / AEP can only be taught within defined limits ( page 8). If the teaching process is carried out at an invalid pressure, UL or OL is displayed. After acknowledgement by "ode/enter" Err flashes, the AP value / AEP value is not changed. ENGLIH 7

12 8 Enhanced functions This menu item contains a submenu with additional parameters. You can access these parameters by pressing the ET button briefly. If the submenu is protected with an access code,"cod" flashes in the display. - Press the "et" button and hold it pressed until the valid code no. is shown. - Then briefly press the "ode/enter" button. Delivery by ifm electronic: no access restriction. Display unit The measured value and the values for P, rp, AP and AEP can be displayed in the following units: mbar, kpa, PI. elect the display unit before setting the switch points (P, rp) and the limits for the analogue output signal (AP, AEP). This avoids rounding errors generated internally during the conversion of the units and enables exact setting of the values. etting at the factory: Uni = mbar. Display mode settings can be selected: P = Pressure in the unit set in Uni. P% = percentage value (pressure in % of the set scaling of the analogue output. The following applies: 0% = AP value; 00% = AEP value). NOTE: Display "0%" does not mean that the system is free of pressure! Analogue start point easured value at which 4mA / 0V is provided (0mA / 0V if OU = InEG / UnEG). AP can also be set by means of the teaching process ( tap). Analogue end point easured value at which 0mA / 0V is provided (4mA / 0V if OU = InEG / UnEG). inimum distance between AP and AEP = 5% (turn down :4). AEP can also be set by means of the teaching process ( taep). etting range for AP / AEP: mbar kpa PI AP AEP in chritten von

13 in-ax memory for system pressure HI: displays the highest measured pressure LO: displays the lowest measured pressure Erase the memory: - Press the "ode/enter" button until HI or LO is displayed. - Press the "et" button and keep it pressed until is displayed. - Then press the "ode/enter" button briefly. Calibration offset The internal measured value (operating value of the sensor) is offset against the real measured value. etting range: % of the value of the measuring range (with scaling as factory setting (AP = 0% and AEP = 00%), in steps of 0.% of the value of the measuring range. COF can also be set by means of the teaching process ( tcof). Delay time for the switching output d = switch-on delay; dr = switch-off delay The output does not immediately change its switching status when the switching condition is met but when the delay time has elapsed. If the switching condition is no longer met when the delay time has elapsed, the switching state of the output does not change. etting range: 0 / s adjustable in steps of 0.s (0 = delay time not active), Indicated in seconds. Output polarity (output ) options can be selected: - PnP = positive switching - npn = negative switching Damping for the switching output (OU) Pressure peaks of short duration or high frequency can be filtered out. dap-value = response time between pressure change and c hange of the switching status in seconds (s). etting range: s in steps of 0.s (0. = dap is not active). Correlation between switching frequency and dap: f max = dap Damping also affects the display. ENGLIH 9

14 Damping for the analogue output (OU) Pressure peaks of short duration or high frequency can be filtered out. daa-value = response time between pressure change and change of the switching status in seconds (s). etting range: 0,... 00s in steps of 0.s (0. = daa is not active). etting of the display 7 options can be selected: d = update of the measured value every 50ms d = update of the measured value every 00ms d3 = update of the measured value every 600ms The update interval only refers to the display. It has no effect on the outputs. rd, rd, rd3 = display as d, d, d3; but rotated 80. OFF = In the Run mode the display of the measured value is deactivated. If one of the buttons is pressed, the current measured value is displayed for 5s. Another press of the ode/enter button opens the Display mode. The LEDs remain active even if the display is deactivated. Reset to factory settings - Press the "ode/enter" pushbutton until re is displayed. - Press the "et" pushbutton and keep it pressed until " " is displayed. - Then press the "ode/enter" pushbutton briefly. All modified parameter settings will be reset. Therefore it makes sense to note down your own settings before ( table on page 5). 30

15 Hysteresis function (fig. ): The hysteresis keeps the switching state of the output stable if the system pressure varies about the preset value. With the system pressure rising, the output switches when the switch-on point has been reached (P). With the system pressure falling the output does not switch back until the switch-off point (rp) has been reached. The hysteresis can be adjusted: First the switch-on point is set, then the switch-off point with the requested distance. Window function (fig. ): The window function enables the monitoring of a defined acceptable range. When the system pressure varies between the switch-on point (P) and the switch-off point (rp), the output is switched (window function / NO) or not switched (window function / NC). The width of the window can be set by means of the difference between P and rp. P = upper value, rp = lower value. P acceptable range P P rp hysteresis P rp 0 0 t Hno Hnc 0 0 t Fno Fnc caling the measuring range (analogue output) caling can also be set by means of the teaching process or by entering a value for the AP and AEP parameters. By means of the OU parameter you define whether the set measuring range is provided as a mA signal (OU = I), a mA signal (OU = InEG), a V signal (OU = U) or a V signal (OU = UnEG). By teaching the analogue start point (tap) or setting the parameter AP you define the measured value at which the output signal is 4mA / 0V (0mA / 0V at InEG / UnEG). 3 ENGLIH

16 By teaching the analogue end point (taep) or setting the parameter AEP you define the measured value at which the output signal is 0mA / 0V (4mA / 0V at InEG / UnEG). inimum distance between AP and AEP = 5 % of the final value of the measuring range (turn down :4). Please note: If the system pressure is indicated as a percentage value (ELd = P%), then: 0% = AP value / 00% = AEP value. Display "0%" does not mean that the system is free of pressure! Voltage output U [V] Factory preset U [V] easuring range scaled 0 0 AW EW P AW AP AEP EW P AW = initial value of the measuring range; EW = final value of the measuring range The output signal is between 0 and 0V in the set measuring range ( for OU = U / for OU = UnEG). It is also indicated: ystem pressure above the measuring range: output signal > 0 V if OU = U. ystem pressure below the measuring range: output signal > 0 V if OU = UnEG. 3

17 Current output Factory preset I [ma] I [ma] easuring range scaled AW EW P AW AP AEP EW P AW = initial value of the measuring range; EW = final value of the measuring range The output signal is between 4 and 0mA ( for OU = I / for OU = InEG). It is also indicated: ystem pressure above the measuring range: - output signal > 0mA if OU = I, - output signal drops to max. 3.8mA if OU = InEG. ystem pressure below the measuring range: -output signal drops to max. 3.8mA if OU = I, - output signal > 0mA if OU = InEG. ENGLIH 33

18 Technical data Operating voltage [V] DC Current consumption [ma] < 50 Current rating [ma] Protection: short-circuit, reverse polarity, overload; integrated Watchdog Voltage drop [V] < Power-on delay time [s] ,5 in. response time switching output [s] , witching frequency [Hz] Analogue output (measuring range scaleable) ma / V ax. load current output [Ω] (U B - 0) x 50; 700 at U B = 4V in. load with voltage output [Ω] in. response time analogue output [s] Accuracy / deviations (in% of the span) ) - Characteristics deviation (linearity, incl. hysteresis and repeatability) ) < ± 0. - Linearity < ± 0. - Hysteresis < ± 0. - Repeatability (with temperature fluctuations < 0K) < ± 0. - Long-time stability (in% of the span per year) < ± 0. - Temperature coefficients (TEPCO) in the compensated temperature range C (in% of the span per 0 K) - Greatest TEPCO of the zero point < ± 0. - Greatest TEPCO of the span < ± 0. aterials (wetted parts)..... stainless steel (303); ceramics; FP (Viton) Housing material stainless steel (36); stainless steel (3045); PC (acrolon); Pocan; PEI; FP (Viton); Protection rating IP 65 Protective class III Insulation resistance [Ω] > 00 (500 V DC) hock resistance [g] (DIN / IEC 68--7, ms) Vibration resistanc [g] (DIN / IEC 68--6, Hz) witching cycles min million Operating temperature [ C] edium temperature [ C] torage temperature [ C] EC EN ED: / 8 KV EN HF radiated: V/m EN Burst: KV EN HF conducted: V ) all indications are referred to a turn down of : ) limit value setting to DIN

19 aßzeichnung cale drawing Dimensions ,5 x 57,3,5 7,3 30 G 3,5 / 4 4-stellige alphanumerische Anzeige LEDs 3 Programmiertaste 4-digit alphanumerical display LED s 3 programming button visualisation alphanumérique à 4 digits LEDs 3 bouton poussoir 5