standards based cylinder DNCI Operating instructions e [ ]

Transcription

1 standards based cylinder DNCI en Operating instructions e [ ]

2 Original instructions Identification of hazards and instructions on how to prevent them: Danger Immediate dangers which can lead to death or serious injuries Warning Hazards that can cause death or serious injuries Caution Hazards that can cause minor injuries Other symbols: Note Material damage or loss of function Recommendations, tips, references to other documentation Essential or useful accessories Information on environmentally sound usage Text designations: Activities that may be carried out in any order 1. Activities that should be carried out in the order stated General lists Result of an action/references to more detailed information 2 Festo DNCI e

3 Standard cylinder DNCI For all available product documentation 1 Operating parts and connections Compressed air connections 2 Grooves for proximity switch 3 Electrical connection of the measuring head 4 Measuring head 6 Piston rod with integrated magnetic measuring tape 7 Pivot for counter holding the piston rod 8 Centering collar 9 Earth/ground connection 5 Flange screws with threaded holes for fastening Bild 1 Festo DNCI e English 3

4 2 Method of operation and application When the compressed air connections are pressurized alternately, the piston rod of the piston rod drive with integrated incremental measuring system DNCI moves in and out. There is a magnetic tape in the piston rod. A sensor in the bearing cover converts the magnetic pulses of the magnetic tape into electric signals depending on the positioning path of the standard cylinder. The DNCI has been designed for transporting work masses. The integrated measuring system has been designed for monitoring the piston position in combination with a positioning controller from Festo (e.g. CMPX, CMAX, SPC200, SPC11 Soft Stop ) or for use as a measuring cylinder. The DNCI is not intended for use in manufacturing processes which are sensitive to copper or PTFE. 3 Transport and storage Take into account the weight of the DNCI. Depending on the design the DNCI can weigh over 10 kg. Ensure storage conditions as follows: short storage periods, cool, dry, shaded storage locations protected from corrosion, no influence from magnetic fields. 4 Conditions of use Please note Special conditions apply to the electronic control of the DNCI: Take into account the warnings and instructions in the descriptions of the positioning controller. Please note Malfunctioning will occur if the device is not used correctly. Make sure that the specifications in this chapter are always observed. Only in this way can you ensure correct and reliable functioning. 4 Festo DNCI e English

5 Compare the maximum values specified in these operating instructions with your actual application (e.g. pressures, forces, torques, temperatures, masses, speeds, voltages). Only if the loading limits are observed can the DNCI be operated in accordance with the relevant safety guidelines. Observe the specifications applicable to your location, as well as all local and national laws and regulations. Remove all transport packaging such as foils, caps and cartons (except for any plugs in the pneumatic connections). The packing is intended for recycling (except for oiled paper which must be disposed of). Observe the ambient conditions at your location. Make sure that the compressed air is correctly prepared (here: filtered, dried and non-lubricated / see Technical specifications ). Once a medium has been selected, keep this unchanged over the complete service life of the product (media quality see Technical specifications ). Pressurize your complete system slowly until the operating pressure is reached. All movements of the actuators will then be controlled. For slow start-up pressurization use safety start-up valve HEL or HEM. Use the DNCI in its original state without undertaking any modifications. Festo DNCI e English 5

6 5 Fitting Fitting mechanical components Check the use of the DNCI as a measuring cylinder with electronic control. Please note Using the DNCI with electronic control: Use the DNCI only in the permitted mounting positions (see here the drivespecific information on the positioning controllers). When fitting the mechanical parts, take into account the instructions in the manuals for the positioning controller. Make sure that tubing and connection accessories have sufficient space for movement. If the cylinders are arranged parallel: Take the following minimum space requirements into account: Otherwise the magnetic fields of the two cylinders will influence each other and lead to evaluation faults in the measuring system. Parallel arrangement Bearing cover flush Bearing cover offset (Y 0) No minimum distance Minimum distance X > 70 mm 6 Festo DNCI e English

7 With direct fastening or if mounting accessories are used, in each case with cylinder collar milling: Select one of the fastening possibilities listed in the following table: Double screwing with foot fastening HNA in the threaded holes of the cover screws Double screwing with foot fastening FNC in the threaded holes of the cover screws Bild 2 The different product sizes have connector threads of the following design and with the following tightening torques: DNCI Connector thread M6 M6 M8 M8 Tightening torque [Nm] Bild 3 Tighten the fastening screws equally. Festo DNCI e English 7

8 If accessories are mounted on the piston rod: Use the following elements: only the thread of the piston rod. the pivot 7 on the piston rod for counterholding (only in the retracted end position). The maximum torque on the bearing must not exceed 5 Nm. an external guide for the work load. This will prevent lateral loadings on the piston rod. Lateral loadings produce false measuring results and may damage the measuring system. Bild 4 Bild 5 If additional proximity switches are used: Place the proximity switches in the fastening grooves. Cover rails over the grooves fasten the cables and protect them against dirt. Use cover rails in all unused grooves in accordance with the chapter Accessories (protection against dirt). Bild 6 Fitting pneumatic components Remove the sealing elements from the compressed air connections. Connect the tubing of the DNCI to the compressed air connections. DNCI Connector thread Bild 8 G1/8 G1/4 G1/4 G3/8 Bild 7 8 Festo DNCI e English

9 If the DNCI is used as a measuring cylinder: Screw the one-way flow control valves of GRLZ or GRLA directly into the relevant compressed air connections. One-way flow control valves enable the speed to be set. If the DNCI is used with electronic control: Please note Take into account the special fitting regulations and instructions for the DNCI in the manuals for the positioning controller. Use the proportional directional control valve MPYE for controlling the DNCI. The proportional directional control valve in conjunction with the controller electronics creates the desired movement by means of the difference in pressure on the two piston surfaces. Bild 9 Fitting electric components Avoid external influences by magnetic or ferritic parts in the vicinity of the measuring head (approx. 100 mm). This will guarantee that the sensor functions faultlessly. Insert the screw with cutting thread supplied into the hole for the earth connection 9. This will ensure the electrical contact in spite of the anodizing layer. Bild 10 Connect the earth cable with low impedance (short cable with large crosssectional area) to the earth potential. Festo DNCI e English 9

10 If the DNCI is used with electronic control: Connect the measuring system connection with the cable in accordance with the manuals for the positioning controller. If the DNCI is used as a measuring cylinder: Connect the measuring system as follows: Pin Cable colour Designation Pin assignment (view of plug) 1 black +Ub 2 brown 0 V 3 red Signal sine + 4 orange Signal sine - 5 green Signal cosine - 6 yellow Signal cosine + 7 Screening/shield Screening/earth 8 n.c. Bild 11 6 Commissioning Warning Uncontrolled moving parts can cause injury to people in the vicinity of the DNCI. Make sure that nobody can place his/her hand in the positioning range of the work load (e.g. by means of a protective screen). If the DNCI is protected correctly, it should not be possible to gain access to it until it has come to a complete stand. Make sure that no objects project into the positioning range of the work load. Bild Festo DNCI e English

11 If the DNCI is used as a measuring cylinder: Observe the commissioning instructions for the measuring signal amplifier used. 1. Push the piston rod at first into a mechanical end position. 2. Screw the one-way flow control valves into both compressed air connections at first completely (as supplied from the factory), then open them up again one turn. The DNCI will then move slowly over the complete positioning path. 3. Slowly pressurize the compressed air connection of the mechanical end position. 4. Start a test run. 5. Unscrew the one-way flow control valves until the desired speed is reached. 6. Conclude the test run. If the DNCI is used with electronic control: Please note Special commissioning regulations apply to the electronic control of the DNCI: Observe the instructions in the manuals for the positioning controller when commissioning. Start a test run (at the lowest permitted pressure). Check to see if the settings on the DNCI or on the controller need to be modified: Reference stop Speed Switching points Movement sequence Conclude the test run. Festo DNCI e English 11

12 7 Operation Warning Uncontrolled moving parts can cause injury to people in the vicinity of the DNCI. Make sure that nobody can place his/ her hand in the positioning range of the work load (e.g. by means of a protective screen). If the DNCI is protected correctly, it should not be possible to gain access to it until it has come to a complete stand. Make sure that no objects project into the positioning range of the work load. Bild 13 8 Care and maintenance Do not adjust screws or threaded pins for which there is no direct request for modification in these operating instructions. In this way you will prevent damage to the cylinder at a later stage. Cleaning Clean the exterior of the DNCI with a soft cloth. The following cleaning agents are permitted: soap suds (max C) petroleum ether all non-abrasive cleaning agents. 12 Festo DNCI e English

13 9 Dismantling and repairs Dismantling Warning There is a danger of injury caused by pressure forces which can eject the sensor if the connecting screws are loosened under pressure. Make sure that the following sources of energy are switched off: the operating voltage the compressed air (drive exhausted on both sides). The sensor projects into the pressure chamber of the DNCI. Bild 14 Replacing the sensor 1. Unscrew the fastening screws. 2. Replace the sensor. Note here the mechanical coding on the sensor housing and make sure that the seal is seated correctly. 3. Screw the fastening screws in again. The tightening torque is 0.6 Nm. Recommendation: Return the product to our repair service for overhaul. The necessary fine adjustments and tests will then be taken into account. Information on spare parts and aids can be found under: Festo DNCI e English 13

14 10 Accessories Please note Please select the appropriate accessories from our catalogue: 11 Eliminating faults Fault Possible cause Remedy Faults in position scanning Strong external magnetic fields Environmental influences outside the specifications Magnetic strip in the piston rod polarized due to strong magnetic fields Mounting fault when sensor is replaced Eliminate external magnetic fields (e.g. by means of screening plates) Observe the specifications Send to Festo with a description of the fault Check the correct position of the sensor coding nose in the cylinder In combination with positioning controllers See detailed description of the relevant positioning controller Hard knocking in the end positions Bild 15 Work mass too large Speed too high Insufficient cushioning Reduce accelerated work mass Reduce speed Brake additionally with work valves Use external cushioning elements 14 Festo DNCI e English

15 12 Technical specifications DNCI Design Mounting position Double-acting pneumatic cylinder with integrated, incremental measuring system As desired (as measuring cylinder and for positioning) Vertical (with Soft Stop) Operating medium Compressed air to ISO :2010 [6:4:4] Operating pressure range 1... max. 12 bar (as measuring cylinder), in conjunction with positioning controllers see relevant manual Connector thread G1/8 G1/4 G1/4 G3/8 Temperature range C (ambient/storage) Theoretical work force at 6bar running forwards 483 N 754 N 1178 N 1870 N running backwards 415 N 633 N 990 N 1682 N Max. permitted torsional moment on piston rod 5 Nm Positioning speeds as measuring cylinder 1) minimum 0.05 m/s maximum 1.5 m/s Stroke reserve 2) 10 mm 15 mm Repetition accuracy as a measuring cylinder 0.1 mm, in conjunction with positioning controllers see relevant manual Accuracy of measurement ± (0,07 mm ± 0,02*L/m) 3) 1) In conjunction with positioning controllers higher speeds can be achieved (see manuals for the positioning controllers). 2) Work stroke = stroke - 2 x stroke reserve 3) L = Length of measuring system in meters Festo DNCI e English 15

16 DNCI Displacement resolution With CASM or DADE 0,005 mm With SPC11 or SPC200 0,02 mm Electrical connection CE marking (see declaration of conformity) 4) Cable with plug, round form, M12, 8-pin In accordance with EU EMC Directive Cable length 1500 mm (max. 30 m) Interface Resistance to vibration as per IEC 68 part 2-6 Resistance to shock as per IEC68 part 2-27 Analogue 0.35 mm path at Hz; 5 g acceleration at Hz ± 30 g at 11 ms duration; 5 shocks in each direction Materials Housing: Aluminium, anodized Piston rod, collar screws: Bearings: Piston guide: Seals: Sensor housing: Plug housing: Cable coating: Steel POM PBT, POM PU, NBR POM PBT PUR Approx. weight [kg] 0-stroke (DNCI-...-S2) 0.52 (0.59 ) 0.85 (0,98) 1.32 (1.55) 1.91 (2.17) per 10 mm stroke (DNCI-...-S2) 0.03 (0.04) 0.04 (0,06) 0.06 (0.09) 0.07 (0.1) 4) The device is intended for use in an industrial environment. Outside of industrial environments, e.g. in commercial and mixed-residential areas, actions to suppress interference may have to be taken. Bild Festo DNCI e English

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18 Copyright: Festo AG & Co. KG Ruiter Straße Esslingen Germany Phone: Fax: Reproduction, distribution or sale of this document or communication of its contents to others without express authorization is prohibited. Offenders will be liable for damages. All rights reserved in the event that a patent, utility model or design patent is registered. service_international@festo.com Internet: