BTL5-F1 -M -A/B/Z-S115. User s Guide. english

Transcription

1 english User s Guide Balluff GmbH Schurwaldstrasse Neuhausen a.d.f. Germany Phone +49 (0) 71 58/ Fax +49 (0) 71 58/50 10 Servicehotline +49 (0) 71 58/ balluff@balluff.de

2 Contents 1 Safety Advisory Proper application Qualified personnel Use and inspection Scope Function and Characteristics Characteristics Functional operation Available stroke lengths and magnets Installation Mounting Transducer, Installation Magnets, installation Wiring Startup Check connections Turning on the system Check switching points Check functionality Fault conditions Programming Principle Outputs with pos. logic Outputs with neg. logic Delete outputs Go to next output Programming outputs with positive logic Programming outputs with negative logic Delete Outputs Select next output Technical Data Dimensions, weights, ambient conditions Supply voltage (external) Switching outputs Connection to controller Included in shipment Magnets Accessories Versions (indicated on product label) The following patents have been granted in connection with this product: US Patent Apparatus and Method for Automatically Tuning the Gain of an Amplifier 1 Safety Advisory Read this manual before installing and operating the Micropulse Transducer. 1.1 Proper application The BTL5 Micropulse transducer is intended to be installed in a machine or system. Together with a controller (PLC) it comprises a position measuring system and may only be used for this purpose. Unauthorized modifications and non-permitted usage will result in the loss of warranty and liability claims. 1.2 Qualified personnel This guide is intended for specialized personnel who will perform the installation and setup of the system. 1.3 Use and inspection The relevant safety regulations must be followed when using the transducer system. In particular, steps must be taken to ensure that should The CE Mark verifies that our products meet the requirements of EC Directive 89/336/EEC (EMC Directive) and the EMC Law. Testing in our EMC Laboratory, which is accredited by DATech for Testing Electromagnetic Compatibility, has confirmed that Balluff products meet the EMC requirements of the following Generic Standards: EN (emission) EN (noise immunity) the transducer system become defective no hazards to persons or property can result. This includes the installation of additional safety limit switches, emergency shutoff switches and maintaining the permissible ambient conditions. 1.4 Scope This guide applies to the model BTL5-F...A/B/Z-S115 Micropulse transducer. An overview of the various models can be found in section 12 Versions (indicated on product label) on page 12. Note: For special versions, which are indicated by an -SA _ designation in the part number, other technical data may apply (affecting calibration, wiring, dimensions etc.). Emission tests: RF Emission EN Group 1, Class A+B Noise immunity tests: Static electricity (ESD) EN Severity level 3 Electromagnetic fields (RFI) EN Severity level 3 Fast transients (Burst) EN Severity level 3 Surge EN Severity level 2 Line-induced noise induced by high-frequency fields EN Severity level 3 Magnetic fields EN Severity level 4 2 english

3 2 Function and Characteristics 2.1 Characteristics Micropulse transducers feature: High resolution and repeatability Immunity to shock, vibration, contamination and electrical noise Automatic signal regulation Switchpoints freely programmable Simple programming Removable calibration device Pressure rated to 600 bar IP 67 per IEC Functional operation The transducer contains a tubular waveguide enclosed by an outer stainless steel rod. A magnet attached to the moving member of the machine or to the cylinder piston is moved over the rod and its position constantly updated. The magnet defines the measured position on the waveguide. An internally generated INIT pulse interacts with the magnetic field of the magnet to generate a magnetostrictive torsional wave in the waveguide which propagates at ultrasonic speed. The torsional wave arriving at the end of the waveguide is absorbed in the damping zone. The wave arriving at the beginning of the waveguide creates an electrical signal in the coil surrounding the waveguide. The propagation time of the wave is used to derive the position. This process takes place with measuring high precision and repeatability within the stroke range defined as nominal stroke length. At the rod end is a damping zone, within which no reliable signal is available, but which may be entered by the magnet. The electrical connection between the transducer, the processor/controller and the power supply is via a cable, which is connected using a female connector. Dimensions for installing the Micropulse transducer: Fig. 3-2 Dimensions for installing the magnet: Fig Available stroke lengths and magnets To ensure flexible application, nominal transducer stroke lengths of from 25 to 4000 mm and various types of magnets are available. The magnets need to be ordered separately. 3 Installation 3.1 Mounting When possible, use non-magnetizable material for attaching the transducer and magnet ring. Fig When attaching the transducer to magnetizable materials, appropriate measures must be taken to protect against magnetic disturbances Fig Note the recommended distance of the transducer and cylinder from strong, external magnetic fields. non-magnetizable material ➀ - ➂ for magnetizable materials ➃ for non-magnetizable materials Fig. 3-1: Mounting a = Spacer made of nonmagnetizable materials b = Magnet english 3

4 3 Installation (cont.) Electrical connection BKS-S116-PU- L Bending radius > 66 L BKS-S115-PU- Mounting surface B: 30 mm ±0,5 Z: 2" Magnet Nominal length = measuring range Magnet Damping zone (unusable area) Mounting A: 30 mm ±0,5 0.5 surface 45 Thread size: Nominal B: M length Z: 3/4"-16UNF ~27 ~53 60 Ø 10.2 Blind hole M4 4/6 deep Calibration device Thread size: A: M Fig. 3-2: Transducer BTL5-F1...A/B/Z-S115, Dimensions Important Installation Notes: The contact surface of the transducer must be completely contacted by the mounting surface. The O-ring supplied must make a perfect pressure seal, i.e. the bevel for the O-ring must be configured exactly as shown in Fig To achieve secure mounting, use the proper nut for the mounting thread. When tightening the nut, do not exceed a tightening torque of 100 Nm. For horizontal mounting of transducer with stroke lengths greater than 500 mm, the pressure tube should be supported or attached at its end. When installing in a hydraulic cylinder, do not allow the magnet ring to rub against the pressure tube. Protect the end of the outer tube from wear. The bore diameter in the piston and cylinder rod should be at least 13 mm. When attaching the transducer to magnetizable materials, appropriate measures must be taken to protect against magnetic disturbances, Fig Note the recommended distance of the transducer and cylinder from strong, external magnetic fields. 3.2 Transducer, Installation The smallest permissible distance between magnet ring and rod mounting surface is shown in Fig The transducer has either a M thread or a 3/4"-16UNF thread for mounting. The sealing is carried out with the O-ring supplied at the flange facing. Threaded hole M per ISO 6149 O-ring Threaded hole 3/4"-16UNF per SAE J475 O-ring Bevel for O-ring Threaded hole Fig. 3-3: Threaded hole for mounting the BTL with O-ring 4 english

5 3 Installation (cont.) 3.3 Magnets, installation A magnet is required for each transducer. This must be ordered separately. Fig For mounting the magnet we recommend to use non-magnetizable material. Fig BTL-P R 4 Wiring Note the following when making electrical connections: System and control cabinet must be at the same ground potential. To ensure the electromagnetic compatibility (EMC) which Balluff warrants with the CE Mark, the following instructions must be strictly followed. BTL transducer and the control must be connected using shielded cable. Shielding: Copper filament braided, 85% coverage. The shield must be tied to the connector housing in the BKS connector ( Fig. 4-3); see instructions accompanying the connector. The cable shield must be grounded on the control side, i.e., connected to the protection ground. Pin assignments can be found in Table 4-1. Connections on the controller side may vary according to the controller and configuration used. 1 Output 1 YE BTL-P S BTL5-F1...S Output 2 Output 3 Output 4 La GND +24 V GY PK RD GN BU BN Controller 8 Lb WH BTL-P R Fig. 4-1: BTL5-F1 -M...S115 with controller and BKS-S115-PU05, wiring example Fig. 3-4: Magnet (optional) When routing the cable between the transducer, controller and power supply, avoid proximity to high voltage lines to prevent noise coupling. Especially critical is inductive noise caused by AC harmonics (e.g. from phase-control devices), against which the cable shield provides only limited protection. Cable length max. 20 m; Ø 6 to 8 mm. Longer lengths may be used if construction, shielding and routing are such that external noise fields will have no effect on signal integrity. View of BTL connection Fig. 4-2: Pin assignments BKS, connector type BTL L M12 1 BKS-S115-PU- straight BKS-S115 ~55 L Ø 6 - Ø 8 Cable entry (PG 9 fitting) Ø 20 M12 1 Fig 4-3: Connector (optional) M12 1 BKS-S116-PU- english 5

6 4 Wiring (cont.) Output signals Pin Cable BTL5-F1 1 YE yellow Output 1 2 GY gray Output 2 3 PK pink Output 3 4 RD green Output 4 Supply voltage (external) Pin Cable BTL5-F1 6 BU blue GND 7 BN brown +24 V Programming inputs Pin Cable BTL5-F1 5 GN green La; Programming input Low-active 8 WH white Lb; Programming input Low-active Table 4-1: Wiring, wire colors same as BKS-S115-PU 5 Startup 5.1 Check connections Although the connections are polarity reversal protected, components can be damaged by improper connections and overvoltage. Before you apply power, check the connections carefully. 5.2 Turning on the system Note that the system may execute uncontrolled movements when first turned on or when the transducer is part of a closed-loop system whose parameters have not yet been set. 6 Programming Please note: The calibration device is to be attached to the connection end of the transducer as shown in Fig Connect the transducer to the controller. All settings are done with a magnet within the stroke area. Any desired position of the magnet can be defined as a switching point. Therefore make sure that no hazards could result from these situations. 5.3 Check switching points After replacing or repairing a transducer, you must reprogram the outputs. 5.4 Check functionality The functionality of the transducer system and all its associated components should be regularly checked and recorded. In programming mode the outputs are used as a reply or state indicator. Therefore they may not be used for controlling the machine. Once the programming procedure is concluded, the calibration device can be removed to prevent accidental changes and to store in a safe place for the next use. The buttons are automatically disabled after approximately 2 minutes of non-use. 5.5 Fault conditions When there is evidence that the transducer system is not operating properly, it should be taken out of service and guarded against unauthorized use. Instead of the calibration device, the programming inputs La and Lb may be used for programming: La = Button 1; Lb = Button 2 Programming input grounded GND =^ Button pressed. Default: No output programmed. The last programmed values remain stored, regardless of whether the programming mode is ended manually by pressing the buttons or automatically after 2 minutes. 6 english

7 6 Programming (cont.) Operating mode: Determine position and evaluate switchpoints Operating mode Buttons disabled LED / = Button 1 blue Fig. 6-1: Calibration device (shown on transducer) = Button 2 gray <2 s Buttons enabled, Output 1 selected 2s<t<3s >3 s >100 s 6.1 Principle Each output can be programmed with positive or negative logic and as a cam (= 2 switchpoints) or as a simple switchpoint. Program output with pos. logic Program output with neg. logic Delete current outputs Delete all outputs Time out The magnet must be located in the desired position, which is then defined as a switchpoint (SP). 6.2 Outputs with pos. logic Switchpoint SP1 Select next output Or Exit after Output 4 is processed. Cam SP1 SP2 6.3 Outputs with neg. logic Switchpoint SP1 Cam SP1 SP2 6.4 Delete outputs Delete only the selected output or all 4 outputs. 6.5 Go to next output Here you can go to the next output without changing the programmed values; you may also exit programming mode. Fig. 6-2: Programming Operating mode Buttons disabled english 7

8 7 Programming outputs with positive logic Enable buttons: 1. Press one of the buttons for at least 2 s until "Button pressed" appears. Release button. 2. Within 1 s hold down buttons 1+2 simultaneously for at least 2 s until "Buttons enabled" appears. Release buttons. Output 1 is selected (= LED1). In case of an error or a break in the activation sequence of buttons, release all buttons and wait until the transducer is again in operating mode and the current state of the outputs is displayed. Enable buttons 1 / 2 <1 s 1 +2 BTL5-F... with magnet in stroke range Operating mode LED state Flash times On : Off Output 1 selected Current position Current LED state button pressed buttons enabled Select positive logic: Hold down Button 1 for at least 2 s until pos. logic is displayed. Release button s : 1.5 s Code pos. logic Set switchpoint SP1: 1. Position magnet at exact value for SP1. 2. Hold down Button 1 for min. 2 s until "SP1 stored" appears. Release button. go to: a) Set switchpoint SP2 or b) Skip switchpoint SP s : 1.5 s Position for SP1 SP1 stored a) Set switchpoint SP2: 1. Position magnet at exact value for SP2. 2. Hold down Button 1 for min. 2 s... go to: Next output 1 Position for SP2 SP2 stored b) Skip switchpoint SP2: Hold down Button 2 for min. 2 s... go to: Next output 2 Next output:... and wait until "next output" appears. Release button. This output is now programmed. You are cycled to the next output (2 nd output = LED2...) go to: When the 4 th output is programmed (= LED4), the buttons become disabled. The transducer is then in operating mode. Next output end programming mode If you make a mistake in programming an output, you can delete the output: Section 9 Delete outputs Delete output LED flashing LED on LED off Fig. 7-1: Programming outputs with positive logic 8 english

9 8 Programming outputs with negative logic Enable buttons: 1. Press one of the buttons for at least 2 s until "Button pressed" appears. Release button. 2. Within 1 s hold down buttons 1+2 simultaneously for at least 2 s until "Buttons enabled" appears. Release buttons. Output 1 is selected (= LED1). In case of an error or a break in the activation sequence of buttons, release all buttons and wait until the transducer is again in operating mode and the current state of the outputs is displayed. Enable buttons 1 / 2 <1 s 1 +2 BTL5-F... with magnet in stroke range Operating mode LED state Flash times On : Off Output 1 selected Current position Current LED state button pressed buttons enabled Select negative logic: Hold down Button 2 for at least 2 s until neg. logic is displayed. Release button s : 0.25 s Code neg. logic Set switchpoint SP1: 1. Position magnet at exact value for SP1. 2. Hold down Button 1 for min. 2 s until "SP1 stored" appears. Release button. go to: a) Set switchpoint SP2 or b) Skip switchpoint SP s : 0.25 s Position for SP1 SP1 stored a) Set switchpoint SP2: 1. Position magnet at exact value for SP2. 2. Hold down Button 1 for min. 2 s... go to: Next output 1 Position for SP2 SP2 stored b) Skip switchpoint SP2: Hold down Button 2 for min. 2 s... go to: Next output 2 Next output:... and wait until "next output" appears. Release button. This output is now programmed. You are cycled to the next output (2 nd output = LED2...) go to: When the 4 th output is programmed (= LED4), the buttons become disabled. The transducer is then in operating mode. Next output end programming mode If you make a mistake in programming an output, you can delete the output: Section 9 Delete outputs Delete output LED flashing LED on LED off Fig. 8-1: Programming outputs with negative logic english 9

10 9 Delete Outputs Enable buttons: 1. Press one of the buttons for at least 2 s until "Button pressed" appears. Release button. 2. Within 1 s hold down buttons 1+2 simultaneously for at least 2 s until "Buttons enabled" appears. Release buttons. Output 1 is now selected (= LED1). In case of an error or a break in the activation sequence of buttons, release all buttons and wait until the transducer is again in operating mode and the current state of the outputs is displayed. Ebable buttons Operating mode 1 / 2 <1 s BTL5-F... with magnet in stroke range LED state Flash times On : Off Output 1 selected Current LED state Button pressed code Buttons enabled code Select delete mode: a) Delete selected output: Hold down buttons 1+2 for between 2 s and 3 s. Release buttons as soon as "Next output" appears. The delete action is finished and the next output is selected. (2 nd output = LED2...) go to: When the 4 th output is programmed (= LED4), the buttons become disabled. The transducer is then in operating mode s< t <3 s Next output code Code= end programming mode b) Delete all outputs: Hold down buttons 1+2 for at least 3 s. Release buttons as soon as "All outputs deleted" appears. The delete action is finished. The buttons are disabled. The transducer is then in operating mode. >3 s Fig. 9-1: Deleting outputs All outputs deleted code LED flashing LED on LED off 10 english

11 10 Select next output Enable buttons: 1. Press one of the buttons for at least 2 s until "Button pressed" appears. Release button. 2. Within 1 s hold down buttons 1+2 simultaneously for at least 2 s until "Buttons enabled" appears. Release buttons. Output 1 is now selected (= LED1). In case of an error or a break in the activation sequence of buttons, release all buttons and wait until the transducer is again in operating mode and the current state of the outputs is displayed. Select next output: Hold down Button 2 for less than 2 s. As soon as the button is released, the "Next output" indication appears. The next output is selected. (2 nd output = LED2...) go to: When the 4 th output is programmed (= LED4), the buttons become disabled. The transducer is then in operating mode. Enable buttons Operating mode 1 / 2 <1 s <2 s Fig. 10-1: Selecting the next output 2 BTL5-F... with magnet in stroke range LED state Flashing times On : Off Current LED state Button pressed code Buttons enabled code Next output code end programming LED flashing LED on LED off english 11

12 11 Technical Data Typical values at DC 24 V and 25 C. Ready for operation at once, full accuracy after warm-up. With magnet BTL-P R, BTL-P S or BTL-P R: Sampling rate f Standard Nom. length < 1300 mm 1 khz Nom. length > 1300 mm 0,5 khz Repeat accuracy ±0.1 mm Hysteresis 0.2 mm Schock 100 g/6 ms per IEC Continuous shock 100 g/2 ms per IEC Vibration 12 g, 10 to 2000 Hz per IEC (take care to avoid inherent resonances of protective tube) Pressure up to 600 bar when installed in a hydraulic cylinder 1 Individual specifications as per Balluff factory standard 11.1 Dimensions, weights, ambient conditions Nominal length< 4000 mm Dimensions Fig. 3-2 Weight approx. 2 kg/m Housing anodized aluminum Pressure tube Stainless steel diameter 10.2 mm wall thickness 2 mm e-modulus approx. 200 kn/mm 2 Mounting thread M or 3/4"-16UNF Operating temp. 40 C to +85 C Storate temp. 40 C to +100 C 12 Versions (indicated on product label) Humidity < 90 %, non-dewing Protection rating per IEC IP 67 with connector attached 11.2 Supply voltage (external) Regulated supply voltage BTL5-_1... DC 20 to 28 V Ripple < 0.5 V ss Current draw < 100 ma Inrush < 3 A/0.5 ms Polarity reversal protection built-in Overvoltage protection Transzorb diodes Electric strength GND to housing 500 V 11.3 Switching outputs Load current per output max. 100 ma 11.4 Connection to controller Shielded cable, max. length 500 m, Ø 6 to 8 mm 11.5 Included in shipment Transducer Fig. 3-2 Calibration device Fig. 6-1 Supply voltage: 1 = DC 24 V Electr. connection, S115: with connector BTL5-F100-M0450-B-S115 Micropulse Linear Transducer Rod Style, Mounting: Nom. length (4digits): A = metric thread M B = metric thread M Z = thread 3/4"-16UNF M= metric in mm Outputs with switchpoints: 00 = 4 NPN switching outputs, open collector, freely programmable 10 = 4 PNP switching outputs, open collector, freely programmable 11.6 Magnets (order separately) Magnets BTL-P R, BTL-P S, BTL-P R Dimensions Fig. 3-4 Weight approx. 10 g Housing anodized aluminum Operating temp. 40 C to +85 C Included: 8 mm spacer Material POM (polyoxymethylene) Magnet BTL5-P (electromagnet) Weight approx. 90 g Housing plastic Operating temp. 40 C to +60 C 11.7 Accessories (optional) Connector Fig. 4-3 No E Edition 0411; specifications subject to changes. 12 english