Related Manuals for Festo DACS S Series
Summary of Contents for Festo DACS S Series
- Page 1 DACS-...-S; DFLC/DFLG-...-S Holding brake; Cylinder with holding brake Instructions | Operat- 8107301 8107301 2019-07 [8107303]...
- Page 2 Translation of the original instructions Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07...
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Page 3: Table Of Contents
Test for horizontal mounting position without additional weight force....25 10.2.2 Test for vertical mounting position with additional weight force hanging....27 10.2.3 Test for vertical mounting position with additional weight, standing orientation..29 Operation........................31 Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07... - Page 4 Maintenance.........................31 Malfunctions........................ 33 13.1 Fault clearance......................33 13.2 Repair..........................34 Disassembly......................... 34 Disposal........................34 Technical data......................34 Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07...
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Page 5: About This Document
About this document About this document Applicable documents All available documents for the product è www.festo.com/pk. Document Product Contents Instructions Proximity sensor DADG-D-F8 Assembly Tab. 1 Applicable documents Definition of term The holding brake DACS and the cylinder with holding brake DFLC/DFLG are also referred to as product in this manual. -
Page 6: Intended Use
Transmission of torques or transverse forces Training of qualified personnel Installation, commissioning, maintenance and disassembly should only be conducted by qualified per- sonnel. The skilled personnel must be familiar with the installation of pneumatic control systems. Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07... -
Page 7: Information On Functional Safety
è 3.5 Safety parameters according to EN ISO 13849-1 as the maximum. Safety parameters according to EN ISO 13849-1 3.5.1 Service life Type/size DACS-16 DACS-20 DACS-25 DACS-40 DFLC-40 DFLC-63 DFLC-100 DFLG-160 Service life Tab. 3 Service life Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07... -
Page 8: Safety Function 1
(Average probability of dan- With exemplary actuation rate gerous failure per hour) = 100 000 switching cycles per year Diagram: Fig.2 è Tab. 4 Safety characteristic values for safety function 1 Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07... - Page 9 = 2 000 000 switching cycles Characteristic Formula Calculation example with result value Mean time to dan- gerous failure (MTTF Average probabil- ity of dangerous failure per hour Tab. 5 Calculation example of safety function 1 without load Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07...
- Page 10 = 1 000 000 switching cycles Characteristic Formula Calculation example value Mean time to dan- gerous failure (MTTF Average probabil- ity of dangerous failure per hour Tab. 6 Calculation example of safety function 1 with load Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07...
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Page 11: Safety Function 2
= 200 switching cycles per year gerous failure per hour) Diagram: Fig.3 è Tab. 7 Safety characteristic values for safety function 2 dependent on the average actuation rate per year (n Fig. 3 Characteristic curve for safety function 2 Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07... -
Page 12: Further Information
Accessories è www.festo.com/catalogue. – Spare parts è www.festo.com/spareparts. Service Contact your regional Festo contact person if you have technical questions è www.festo.com. Product overview Function Function of the holding brake DACS The holding of a piston rod and the stopping of the movement of a piston rod is effected by a pre- loaded spring assembly which acts on the internal clamping collet. -
Page 13: Structure
7 Scraper and seal (for piston rod or round 4 Tie rod (4x); attention! Do not loosen tie rod material) fastening. 8 Threaded hole (4x) for retaining screw Fig. 4 Structure (shown DACS-20-A-S) Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07... - Page 14 15 Nuts (4x) for mounting the cylinder for retaining screw. 16 Piston rod (cylinder) 7 Scraper and seal 17 Hex nut 8 Threaded hole (4x) for retaining screw (hold- ing brake) Fig. 5 Structure (DFLC-63 shown) Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07...
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Page 15: Transport
Do not disassemble holding brake; do not loosen tie rod fastening. CAUTION! Danger of crushing Depending on the version, the product weighs up to 50 kg. Body parts can be crushed if the product falls. • Secure the product against falling. Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07... - Page 16 4 Nut (4x) 2 Bearing cap (cylinder) 5 Tie rod (4x); attention! Do not loosen tie rod fastening. 3 Threaded pin (4x) 6 Holding brake Fig. 6 Mounting the holding brake on the cylinder Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07...
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Page 17: Mounting The Holding Brake On Round Material
Do not disassemble holding brake; do not loosen tie rod fastening. CAUTION! Danger of crushing Depending on the version, the product weighs up to 50 kg. Body parts can be crushed if the product falls. • Secure the product against falling. Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07... - Page 18 Screw 4x M6 4x M8 4x M10 4x M16 – Strength class ³ – Screw-in depth [mm] 14.5 14.5 £ £ £ £ – Tightening torque [Nm] Tab. 10 Holding brake on round material Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07...
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Page 19: Installation
Horizontal installation of the cylinder with holding brake For horizontal installation when using the holding brake for holding, the foot mounting HNC/HNG available as an accessory is recommendedè www.festo.com/catalogue. The HNC/HNG foot mounting is not approved for use with the holding brake to stop movements. -
Page 20: Vertical Installation Of The Cylinder With Holding Brake
The piston rod must not be used to transmit transverse forces or torques. With the flexo coupling available as an accessory, transverse forces or bending moments on the piston rod can be prevented è www.festo.com/catalogue. Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07... - Page 21 2. Place cylinder with holding brake at the intended installation location and fasten. Only use screws with sufficient strength class (8.8 or higher) for fastening. Type/size DACS-16 DACS-20 DACS-25 DACS-40 DFLC-40 DFLC-63 DFLC-100 DFLG-160 Flange mounting (accessories) FNC-40 FNC-63 FNC-100 FNG-160 Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07...
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Page 22: Mounting The Attachment Component
Tab. 13 Accessories 2. Use a one-way flow control valve type (e.g. GRLZ or GRLA) directly in the relevant supply port. 3. Select control of the cylinder for the specific application. Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07... - Page 23 Tab. 14 Supply port for holding brake DACS 5. Connect hoses of the supply ports of the cylinder according to EN ISO 4414. Size DFLC-40 DFLC-63 DFLC-100 DFLG-160 Supply ports ¼ ½ ¾ Tab. 15 Supply ports of cylinder DFLC/DFLG Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07...
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Page 24: Commissioning
7. In the test run, check whether the following settings need to be modified: – Speed of the payload – Pneumatic cushioning 8. After completing the required adjustments, terminate the test run. Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07... -
Page 25: Functional Tests
Tab. 16 Overview of functional tests dependent on the mounting position and weight force Deviating applications (e.g. slanted mounting position) are not shown. It may be necessary to make calculations for a specific application and carry out a specific test for that. Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07... - Page 26 The test duration with the test load / test pressure should be 60 s. Ä The test force acts on the piston rod è Tab. 17. The piston rod must not slip during the test. When new, the movement of the piston rod must not exceed 0.1 mm. Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07...
- Page 27 The stopping distance depends on the load and the ambient conditions (e.g. temperature, oil on the piston rod, number of switching cycles, speed, mass, operating pressure and control). Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07...
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Page 28: Test For Vertical Mounting Position With Additional Weight Force Hanging
Acceleration due to gravity [9.81 m/s Piston surface Tab. 18 Type/size DACS-16 DACS-20 DACS-25 DACS-40 DFLC-40 DFLC-63 DFLC-100 DFLG-160 Test force F 1350 3300 8200 17000 Piston surface A 1257 3117 7854 20106 Advancing direction Tab. 19 Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07... - Page 29 The stopping distance depends on the load and the ambient conditions (e.g. temperature, oil on the piston rod, number of switching cycles, speed, mass, operating pressure and control). Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07...
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Page 30: Test For Vertical Mounting Position With Additional Weight, Standing Orientation
Acceleration due to gravity [9.81 m/s Piston surface Tab. 20 Type/size DACS-16 DACS-20 DACS-25 DACS-40 DFLC-40 DFLC-63 DFLC-100 DFLG-160 Test force F 1350 3300 8200 17000 Piston surface A 1056 2803 7363 18850 Retracting direction Tab. 21 Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07... - Page 31 The stopping distance depends on the load and the ambient conditions (e.g. temperature, oil on the piston rod, number of switching cycles, speed, mass, operating pressure and control). Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07...
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Page 32: Operation
Pneumatic energy can cause unexpected movement of the product. • Before working on the product, switch off the compressed air supply and secure it against being switched on again. • Exhaust system parts, if necessary. Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07... - Page 33 If the product does not achieve the required properties in the tests or shows damage: • Replace the product or have Festo repair it. The holding brake and the cylinder with holding brake are lubricated for life. Additional lubrication is not necessary.
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Page 34: Malfunctions
16 Technical data. è The holding brake clamping collet is Replace holding brake or send to Festo worn out or the clamping mechanism is with fault description. defective. Malfunctions in Incorrect position of proximity sensors. Correct position of proximity sensors. -
Page 35: Repair
Do not adjust or unscrew the threaded pins in the cover of the holding brake. • Do not disassemble holding brake; do not loosen tie rod fastening. Send the product to the Festo repair service for repair. Disassembly CAUTION! Danger of crushing Depending on the version, the product weighs up to 50 kg. - Page 36 Max. permissible speed of travel Holding brake DACS [m/s] Cylinder with holding [m/s] brake DFLC/DFLG Vibration and shock (without payload) Vibration In accordance with IEC 60068 (Part 2-6): severity level 1 Shock In accordance with IEC 60068 (Part 2-27): severity level 1 Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07...
- Page 37 0.073 0.110 0.208 10 mm stroke Moving mass of cylinder with holding brake DFLC/DFLG Basic weight [kg] 0.50 0.96 1.94 7.09 – Additional per [kg] 0.016 0.025 0.039 0.097 10 mm stroke Tab. 24 Technical data Festo — DACS-...-S; DFLC/DFLG-...-S — 2019-07...
- Page 38 Copyright: Festo SE & Co. KG Ruiter Straße 82 73734 Esslingen Germany Reproduction, distribution or sale of this document or communic- Phone: ation of its contents to others without express authorization is +49 711 347-0 prohibited. Offenders will be liable for damages. All rights...