Electronic pressure switches type DG 5 E With two signal outputs, DESINA compatible 4-pin socket M12 Operation pressure pmax = 600 bar Symbol (simplified illustration for wiring diagrams etc.) For piston type pressure switches type DG, see D 5440 1. 1.1 General Application The electronic pressure switches type DG 5 E-.. widen the product range, complementing the well approved piston type pressure switches acc. to D 5440. They are intended for high-end applications where e.g. two switch points, high switch operation accuracy, repeatability, programmable hysteresis, high switching frequency and acceleration resistance are a must. Additional feature is the DESINA compatibility and the pressure gauge functionality. 1.2 Outputs PNP Outputs NPN Pressure switch type DG 5 E-... Brief description The electronic pressure switches type DG 5 E-... work according to the capacitive principle. They are equipped with high-quality electronics, feature easy handling and are very reliable. Essential functional parts: - The pressure sensor, ceramic discs manufactured with thick-film technology (capacitive principle) - Microprocessor controlled evaluation system - 4-digit LED indication - 2 yellow LED´s indicating the operational state, three green LED's indicating the measuring units - Two programming buttons - 2 fully electronic outlets (adjustable PNP or NPN) - Electrical connection by means of M12 socket - Housing: Stainless / plastic - Hydraulic connection: Tapped port G 1/4 (BSPP) - Watchdog integriert - 400 bar and 600 bar devices come with restrictor Features and benefits: - Integrated visual function display - Pressure indication (adjustable bar, PSI or MPa) can be read in standing or hanging position - Refresh interval for the indication can be selected (50 to 600 ms) - Indication function can be cut-off - Easy, straight forward operation and programming - Both signal outputs are overload resistant and short-cut proof - High adjustment accuracy and repeatability - Very high mechanical and electrical service life - Rugged industrial design - High IP protection class (IP 67) - Electronics partly molded - Provision for a lead seal (optional "protection cap") - The following may be programmed independently for both switching outputs: Operation as PNP/NPN NO- or NC-contact - Switching function as hysteresis or window, - Delay times for switch-on and switch-off point - Rise time (damping of the analog signal) - Optional Japan version (indication only in MPa) - Special interface (EPS) for programming via PC - Adjustment and transfer of the parameters to other devices via a EPS-programming device (optional) Accessories Protecting cap Plug Hydraulic connectors Circuitry Outputs PNP (switching plus) HAWE HYDRAULIK SE STREITFELDSTR. 25 • 81673 MÜNCHEN © 1998 by HAWE Hydraulik 4 Outputs NPN (switching minus) D 5440 E/1 Electron. pressure switch August 2010-02 D 5440 E/1 page 2 2. Available versions 2.1 Type coding key, accessories 2.1.1 Pressure switch Order coding: DG 5 E - 100 250 400 600 Basic type 2.1.2 Pressure ranges Part No.: 0 ... 100 bar 0 ... 250 bar 0 ... 400 bar 0 ... 600 bar 6217 8114 6217 8115 6217 8116 6217 8117 Accessories Order coding: Transparent protecting cap made of plastic (PU), provision for a lead seal Protecting cap 6217 8047 Order coding: Plug M12, 4-pin, angled MSD-T7 6217 8048 Order coding: Straight male stud fitting with taper 1/4"-1/4" (BSPP) ERMETO EGE 8-SR-ED 6030 7411 Order coding: Flange adapter (similar hole pattern like DG 3.. acc. to D 5440) Y1E 6951 3863 2.2 Technical data 2.2.1 General data Nomenclature Electronic pressure switch Pressure connection G 1/4 conforming DIN ISO 228 (BSPP) (female thread) Materials in contact with the pressure fluid V2A (1.4305), ceramic, FKM Housing materials V2A (1.4305), V4A (1.4404), PBTP, PC, EPDM/X, FPM, Electrical port Via plug M12, 4-pin (industrial standard). Available from HAWE as option, see sect. 2.1.2 Installed position Any Mass (weight) approx. 0.25 kg Shock resistance acc. to DIN IEC 68-2-27 50 g, 11 ms Vibration resistance acc. to DIN IEC 68-2-6 20 g, 10-2000 Hz Protection class EN 60529 or IEC 60529 in properly installed state IP 67 Ambient temperature -25° ... + 80°C (at UB < 32 V) -25° ... + 60°C (at 36 V ≥ UB ≥ 32 V) Fluid temperature -25° ... + 80°C (storage -40° ... +100°C) Electro-magnetic compatibility (EMC) Interference emission acc. to EN 50081-1, interference immunity acc. to EN 61000-4-2 ESD 4/8 kV EN 61000-4-3 HF radiation 10 V/m EN 61000-4-4 Burst 2 kV EN 61000-4-5 Surge 0.5/1 kV EN 61000-4-6 HF wire bound 10 V Conforming EC regulation 89/336 EWG UL- approval: UL-Listing Mark apparent for pressure range 100, 250, and 400 bar IND.CONT.EQ LISTED 11 MA For the scope of validity cU ® Lus: The device shall be supplied from an isolating transformer having a secondary Listed fuse rated as noted in the following table. Overcurrent protection Control-circuit wire size AWG (mm2) 26 (0.13) 24 (0.20) (0.32) 22 (0.52) 20 18 (0.82) 16 (1.3) Max. protective device rating ampere 1 2 3 5 7 10 The Sensor shall be connected only by using any R/C (CYJV2) cord, having suitable ratings. D 5440 E/1 page 3 2.2.2 Hydraulic data DG 5E-100 DG 5E-250 DG 5E-400 DG 5E-600 0 ... 100 0 ... 1450 0 ... 10 0 ... 250 0 ... 3625 0 ... 25 0 ... 400 0 ... 5822 0 ... 40 0 ... 600 0 ... 8700 0 ... 60 Perm. overload pressure pmax [bar] [PSI] [MPa] 300 4350 30 400 5800 40 600 8700 60 800 11600 80 Burst pressure 650 9400 65 850 12300 85 1000 14500 100 1200 17400 120 [bar] [PSI] [MPa] 1 ...100 20 ... 1450 0.1 ... 10 2 ... 250 40 ... 3620 0.2 ... 25 4 ... 400 60 ... 5790 0.4 ... 40 6 ... 600 100 ... 8700 0.6 ... 60 Switch-off point, rP1+rP2 [bar] [PSI] [MPa] 0.5 ...99,5 10 ... 1440 0.05 ... 9.95 1 ... 249 20 ... 3600 0.1 ... 24.9 2 ... 398 30 ... 5760 0.2 ... 39.8 3 ... 597 50 ... 8650 0.3 ... 59.7 by steps of [bar] [PSI] [MPa] 0.5 10 0.05 1 20 0.1 2 30 0.2 3 50 0.3 Measuring range prange [bar] [PSI] [MPa] pburst [bar] [PSI] [MPa] Adjustment ranges: Switch-on point, SP1+SP2 Note: The evaluation system can be damaged within the range between pmax and pburst but the equipment remains tight to the outside. 2.2.3 Electrical data Supply voltage UB 18 .. 36V DC (protected against reverse polarity and overload resistant up to 40V DC) Stand-by delay tB approx. 0.3 s Idle current consumption IL max. 50 mA (self-consumption) Max. perm. ripple factor w Outputs (Short-circuit and overload protected): Current rating IA Voltage drop 10% (ripple) max. 250 mA |UA max. 2V DC Adjustable delay time dS1, dr1, and dS2, dr2 0-0.2-0.4- ...10-11- ... 50 s Note: dS2 and dr2 are not active with OU2 = dESI (DESINA- setting) Table of values for the adjustable response time for the outputs and the max. resulting switching frequency when the pressure signal is square wave (switch-on point SP = 70%, switch-off point rP1 = 30%) Set response time = dAp [ms] 3 6 10 17 30 60 125 250 500 Max. switching frequency [Hz] 170 80 50 30 16 8 4 2 1 Visual function displays Switching states System pressure, functions Precision: Repeatability Curve deviation Hysteresis Temperature drift over the complete temperature range 0 ... 80°C Long term drift Switching cycles N Switch point setting Leak resistance at 500V DC 2.2.4 2 yellow LED’s via 4-digit LED indication Indicated pressure unit: via 3 green LED’s ± 0.1% of the value of measuring range ± 0.5% of the value of measuring range ± 0.25% of the value of measuring range (± 0.5% at 600 bar) ± 0.2% of the value of measuring range / 10 K ± 0.05% of the value of measuring range per 6 month > 100 million Via programming buttons > 100 MΩ Elektro-magnetic compatibility (EMC) The EMC of the device was checked by an accredited approval institute (interference immunity acc. to EN 50081-1 and interference emission acc. to EN 61000-4-++. This EMC test doesn't relieve the user from the proper execution of a specified EMC test for his complete system, since these test assemblies represent only a typical application (conforming the EC-guideline 89/336/EWG). D 5440 E/1 page 4 3. Unit dimensions All dimensions in mm, subject to change without notice! 3.1 Electronic pressure switch Programming buttons Switching status indication (2-LED's) Pressure unit (3 LED’s) **) *) **) *) **) *) 4-digit LED indication *) DG 5E -100, -250 **) DG 5E -400, -600 3.2 Accessories Protecting cap Transparent (material PU) ERMETO-EGE 8-SR-ED Straight male stud fitting with taper MSD-T7 M12 Plug approx. 38 Cable entry 90° rotateable Female Male fitting ERMETO-EGE 8-SR-ED Y1E Flange adapter D 5440 E/1 page 5 4. Mounting and adjustment manual 4.1 Mounting Mount the electronic pressure switch at a suitable test port (see accessories). Switch your system in unstressed mode and attach the equipment electrically via plug M12 (see assembly accessories in sect. 2.1.2). Please take into account, that any assembly accessories is not scope of delivery with the pressure switch, therefore it must be ordered separately if required The protecting cap (see sect. 2.1.2) is another option which protects the programming buttons / display against paint, dust etc. It also gives provision for a lead seal preventing unauthorized adjustment after the final setting procedure. Atention: It is mandatory that the device is supplied via a fuse from a galvanically separated source to fulfill the “limited Voltage” requirements acc. to UL 508! 400 bar and 600 bar devices come with restrictor to prevent excessive pressure. The plug M12x1 cannot be rotated! Any forced rotation will harm the device - corresponding defects are not covered by guaranty. 4.2 Program and control of the preset values Operating devices and display elements Displayed pressure unit green LED’s PSI OU2 operational state MPa yellow OU1 operational state LED’s (LED on = Transistor is conducting) bar 4-digit LED display System pressure Programming buttons (bar) The electronic pressure switch type DG 5E.. is programmed by means of the two programming buttons "MODE/ENTER" and "SET". The current system pressure is indicated on the 4-digit LED indication while in operation mode. The program will return automatically to operation mode if both programming buttons weren't actuated for at least 15 sec. You can achieve and move within the first programming level (level 1) via the programming button "MODE/ENTER". The table (page 6 and 7) lists its sequential steps starting from operation mode but it will return automatically to it, if the button wasn't actuated for at least 15 sec. You can check or reset parameters within the second programming level (level 2) which is achieved via the programming button "SET". Set the displayed units (Uni) before adjusting the parameters SPx and rPx. This will eliminate rounding errors during internal conversion from one to another unit and makes sure you'll receive exactly the desired results. Default unit setting: Uni = bAr When it is pressed only briefly the indication will show the current parameter setting (value) for 5 sec and return automatically to level 1 and then to operation mode. But if "SET" is pressed longer than 5 sec the current parameter setting will count up with increasing speed (for steps see table), alternatively you can achieve the desired value by frequent hitting of "SET" after the initial 5 sec. Via "MODE/ENTER" you can save your new setting and return automatically to operation mode otherwise your setting won't be saved (old setting will be retained) and it returns automatically back to operation mode after 15 sec. D 5440 E/1 page 6 Menue overview Adjustable parameter Switch-on point 1 / 2 Upper limit, when the output will change its switching state Adjustment range → sect. 2.2.2 or SP2 is only active, when Switch-off point 1 / 2 Lower limit, when the output will change its switching state. rPx is always smaller than SPx. Only figures smaller than SPx can be entered. The switch-off point is tracked i.e. it will move whenever the switch-on point is altered (constant distance between SPx and rPx). In case the distance is higher than the new switch-on point it will be reduced automatically i.e. rPx is set on minimum. Adjustment range → sect. 2.2.2 or rP2 is only active, when Configuration for output 1 4 switching functions can be adjusted = Hysteresis/NO-contact = Hysteresis/NC-contact = Window function/NO-contact = Window function/NC-contact Configuration for output 2 4 switching functions can be adjusted = Hysteresis/NO-contact = Hysteresis/NC-contact = Window function/NO-contact = Window function/NC-contact = Output 2 serves a diagnosis output (DESINA) Extended functions This menu item contains a submenu with further parameters. The submenu is opened by briefly pressing the “Set”button. When safeguarded with a access code, “Cod1” will be flashing on the indication. - Press the “Set”-button and keep it pressed until the valid Code-No. is displayed. - Press briefly the “Mode/Enter”-button. Default setting when delivered by HAWE: No access restriction! D 5440 E/1 page 7 Submenu in EF - (extended functions) Displayed units (M) The measurement and the parameter for SPx and rPx can be displayed in the following units: Set the displayed units (Uni) before adjusting the parameters SPx and rPx. This will eliminate rounding errors during internal conversion from one to another unit and makes sure you'll receive exactly the desired results. Default unit setting: Min-Max-memory for the system pressure (can be read only) ' HI: Indicated the highest pressure measured Deleting the memory: - Press the “Mode/Enter”-button, until “HI” is displayed. - Press the “Set”-button and keep it pressed until “- - - -” is displayed. - Press briefly the “Mode/Enter”-button. Delay time for the outputs = Switch-on delay; = Switch-off delay. The output's switching state will not change immediately after the switching process, but first after the delay time, i.e. when a switching state is not maintained over this delay time it will not be displayed. Adjustment range: 0 (=delay time isn't active) - 0.2 ... 50 s, in steps of 0.2 s. dS2 / dr2 is not active, when (DESINA). Circuitry of the outputs Two different settings are possible: = switching plus / = switching minus The setting applies on both outputs Dampening of the outputs This function minimizes the effects of pressure peaks or high frequency. dAP-value = Response time between pressure change and alternation of the switching state in milliseconds (ms). For the table, see sect. 2.2.3 Adjusting the indication The following 7 settings are possible: = Indication refresh every 50 ms. = Indication refresh every 200 ms. = Indication refresh every 600 ms. The indication refresh applies only to the indication and not the output. = Indication like d1, d2, d3; but turned-over by 180°. = The indication is cut-off while in "Run-State". The current pressure will be displayed after one of the buttons is pressed for more than 15 sec. When the "Mode/Enter"-button pressed one again the "Indication-State" is started. The LED’s remain active even when the indication is cut-off. D 5440 E/1 page 8 4.3 Lock / Unlock of the programming buttons Press both buttons "MODE/ENTER" and "SET" for 10 sec to lock the programming buttons Press both buttons "MODE/ENTER" and "SET" to unlock the programming buttons until when tried while the device is locked (display “LOC”) 4.4 is displayed as confirmation. is displayed. Adjustment will fail Notes for some switching functions For nom. pressure range prange and permissible pressure range pmax, see sect. 2.2.2. 4.4.1 Hysterese NO-contact Output = ON if switch point "SP" is achieved 4.4.2 Hysteresis NC-contact Output = OFF if switch point "SP" is achieved 4.4.3 Output = OFF if switch point "rP" is achieved Outlet = ON if switch point "rP" is achieved Window function NO-contact Output = ON if the system pressure is between switch point "SP" and switch-off point "rP" 4.4.4 Window function NC-contact Output = OFF if the system pressure is between switch point "SP" and switch-off point "rP" 4.4.5 Rise time (damping) This is the time which the pressure sensor requires to supply an analogous response signal (from 10 to 90%) after a step change of the system pressure (see also table of values in sect. 2.2.3). 4.5 Indications 4.5.1 Fault indications during operation Pressure overload (measuring range exceeded) Flashing: Short-cut at output 1* Flashing: Short-cut at output 2* Flashing: Short-cut at both outputs* Flashing: Internal error * The respective output is cut-off, as long as the short-cut is existing. Indications SC1, SC2, SC, Err are also displayed when the indication is cut-off. 4.5.2 Diagnosis function similar to DESINA specifications Output 2 serves as diagnosis output, when When there is no error, the output is connected through and UB + (with ) or GND (with ' The output is not active when there is an error. The following errors are detected: Ceramic disc (sensor) faulty; short-cut at output 1; measuring range exceeded; EEPROM-error; RAM-error; processor-error. ' ) is apparent.