Festo VABF-S4-CB-VH Series Instructions & Operating Download Page 7

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3.2

Product variants

Feature

Value

Description

Function elements

VABF

Vacuum generator for valve terminal VTSA-F-CB

Assignment

-S4

–

Size

-2

–

Product function

-V2

Vacuum generator

Throttle characteristics

-B1

–

Pneumatic connection

-G38

G 3/8

Electrical interlinking type

-CB

Printed circuit board with C-bus loop-through

-VH

Vacuum generator, high vacuum

Equipment and equipment

-VL

Vacuum generator, high suction flow rate

-14

Laval nozzle 1.4 mm

-20

Laval nozzle 2.0 mm

Vacuum generation

-30

Laval nozzle 3.0 mm

-A

Ejector pulse, electrical

Additional function

-AP

Power ejector pulse, electrical

Tab. 1 Overview of variants

Product overview

Festo — VABF-S4-...-CB-VH/VL-... — 2019-05

Summary of Contents for VABF-S4-CB-VH Series

Page 1: ...8099796 VABF S4 CB VH VL Vacuum generator 8099796 2019 05 8099798 Instructions Operat ing ...

Page 2: ...Translation of the original instructions 2 Festo VABF S4 CB VH VL 2019 05 ...

Page 3: ...function 12 4 9 Monitoring and diagnostics 13 4 9 1 Monitoring the process 13 4 10 Measured variables 14 4 11 Teach in function 14 4 12 Operating statuses of the vacuum generator 16 4 13 Emergency stop function 17 4 14 Error state 17 5 Installation 18 5 1 Pneumatic installation 18 6 Commissioning 20 6 1 Commissioning the vacuum generator 20 6 2 Configure ejector pulse 20 7 Operation and use 21 7 1...

Page 4: ... 8 3 Process data 27 9 Maintenance and care 28 10 Malfunctions 28 10 1 Diagnostics 28 10 2 Fault clearance 29 11 Conversion and repair 30 11 1 Replace solenoid valve 30 12 Technical data 30 4 Festo VABF S4 CB VH VL 2019 05 ...

Page 5: ...ended exclusively for use on Festo s VTSA F CB valve terminal 2 2 General safety instructions Only use the product in original status without unauthorised modifications Only use the product if it is in perfect technical condition Use the product only inside buildings Take into consideration the ambient conditions at the location of use Observe labelling on the product Installation commissioning ma...

Page 6: ...rlinking to valve terminal VTSA F CB 6 Flow control screw for adjusting the intensity of the ejector pulse 7 Status error LED 8 7 segment display 9 LED switching status indication for solenoid valve 10 Manual override for vacuum generation 11 Manual override for ejector pulse Fig 1 Operating elements and connections Product overview 6 Festo VABF S4 CB VH VL 2019 05 ...

Page 7: ... G 3 8 Electrical interlinking type CB Printed circuit board with C bus loop through VH Vacuum generator high vacuum Equipment and equipment VL Vacuum generator high suction flow rate 14 Laval nozzle 1 4 mm 20 Laval nozzle 2 0 mm Vacuum generation 30 Laval nozzle 3 0 mm A Ejector pulse electrical Additional function AP Power ejector pulse electrical Tab 1 Overview of variants Product overview 7 Fe...

Page 8: ...isplays show the current pressure value of the vacuum in kPa When the teach event is active the decimal point flashes If the air supply or evacuation time is exceeded the com plete display flashes Operating status Display Evacuation Vacuum value Pressurise Teach process alternately vacuum value or tE Tab 2 Behaviour of the 7 segment display Product overview 8 Festo VABF S4 CB VH VL 2019 05 ...

Page 9: ...gnostic function è 4 9 Monitoring and diagnostics Teach function for configuration of switching points and monitoring è 4 11 Teach in function VABF AP only power ejector pulse to reduce the air flow via the vacuum generator cartridge and silencer è 4 7 Power ejector pulse VABF AP 4 2 Operating modes The Operating mode parameter can be used to set the mode of operation of the vacuum generator VABF ...

Page 10: ... Switching function 2 switching points SPA1 SPB1 und SPA2 SPB2 Tab 5 Window comparator 4 4 Vacuum generation The vacuum is generated by the Venturi principle using the vacuum generator cartridges For sizes 20 and 30 two vacuum generator cartridges are connected in parallel to generate the vacuum for size 14 one channel is closed with a blanking plug 4 5 Control of the vacuum function Vacuum genera...

Page 11: ... incl air saving function or in the normal position 4 7 Power ejector pulse VABF AP So that less air escapes unused through the silencer when the vacuum generator is pressurised the exhaust air duct is closed with a shut off piston during the ejection pulse To protect the vacuum gen erator from dirt particles an additional strainer is installed to filter the air sucked in NOTICE Destruction of the...

Page 12: ... system e g due to rough workpiece surfaces To reduce energy consumption vacuum generation is not switched on until it falls below the lower threshold value Switch on suction 3 When transporting air permeable workpieces the vacuum is quickly reduced which frequently switches the vacuum generation on and off In this case a parameter set without air saving function should be selected è 8 1 Module pa...

Page 13: ...he process quality shows information on the quality of the process with the air saving function active è 4 8 Air saving function The process quality is measured by calculating the vacuum decay rate VDR Vacuum Drop Rate kPa s from hysteresis and leakage time tLE A reference variable of 50 kPa s is applied to the VDR A process quality of 0 corresponds to the VDR of 50 kPa s 100 0 kPa s Example 1 Hys...

Page 14: ...r is switched off these values are reset Cycle time A cycle covers the time from the start of evacuation through ejection to the start of the new evacu ation Evacuation time and air supply time The evacuation time tE is measured from the beginning of the evacuation until the switching point SPA1 is reached The air supply time tB is measured from the start of air supply to the time at which the pre...

Page 15: ...P2 0 SP1 0 85 x TP2 HY TP2 TP1 1 1 TP1 minimum pressure value TP2 maximum pressure value independent of the teach sequence Tab 9 Threshold value comparator Teach in window comparator A teach point is set for each switching point in the teach in window comparator In addition a constant hysteresis value is defined The determination of the switching points is static This means that the measured value...

Page 16: ... one or more process cycles are run within a defined period of time between teach start and teach stop The leakage times tLE are measured and used to calculate the process qual ity è Fig 4 In order to obtain the threshold value for the process quality warning the process quality is addition ally assigned a function reserve of 25 4 12 Operating statuses of the vacuum generator Operating status LED ...

Page 17: ...ormal position 1 Normal position 1 1 normal position means that the vacuum generator is not in the Generate vacuum Air saving or Ejection operating status 2 Parameter Interlock ejector pulse must be active Tab 12 Pneumatic and electrical state changes 4 13 Emergency stop function If the emergency stop switching off the load voltage supply is triggered during vacuum generation the vacuum generator ...

Page 18: ...5 Installation The vacuum generator is a functional element of the valve terminal VTSA F CB and assembled ex works Basic information on installation è Operating instructions for valve terminal VTSA F CB 5 1 Pneumatic installation Fig 6 Plug pattern VABF A Installation 18 Festo VABF S4 CB VH VL 2019 05 ...

Page 19: ... Thread size Gy Min internal diameter of tubing VABF VH 14 mm 5 5 VABF VL 14 mm 6 VABF VH 20 mm 6 VABF VL 20 mm 8 VABF VH 30 mm 9 Tab 13 Minimum inner diameter of the connecting hoses at the vacuum connection Installation 19 Festo VABF S4 CB VH VL 2019 05 ...

Page 20: ...pends on the operating pressure The vacuum generator is ready for operation Changing the operating pressure changes the power of the negative pressure at the vacuum port This adjusts the vacuum at the suction gripper Functions and parameters can be changed using the following options Teach in è 7 2 Teach in via FMT Parameters using FMT è 8 Parameter description 6 2 Configure ejector pulse Ejector ...

Page 21: ...ary intensity of the ejector pulse is set 7 Operation and use 7 1 Operating manual override Non detenting operation of the manual override reset automatic Fig 8 1 Use a screwdriver to push in the tappet of the MO until the valve switches Ä The valve reverts to the switching position 2 Keep the plunger of the MO pressed Ä The valve remains in the switching position Operation and use 21 Festo VABF S...

Page 22: ...on of the manual override manual reset Fig 10 1 Use a screwdriver to push in the tappet of the MO until the valve switches Ä The valve reverts to the switching position 2 Turn the plunger 90 clockwise up to the stop and leave it in position Ä The valve remains in the switching position Operation and use 22 Festo VABF S4 CB VH VL 2019 05 ...

Page 23: ... can be stored externally and read in if required Requirement Complete system is in normal position 7 2 1 Teach clock cycle 1 Select the parameter set 2 Set parameter Teach In Learning mode to Time 3 Set the Teach In Start parameter to active 4 Actuate Accept button 5 Measure at least one clock cycle 6 Set the Teach In Save parameter to active 7 Actuate Accept button Ä Values are calculated and tr...

Page 24: ...d If the val ues are not plausible the data set is deleted and a process warning is triggered 7 2 3 Teach in window comparator The procedure for setting the teach in function window comparator is basically the same for channel A and channel B In the following the sequence is described by means of channel A 1 Set parameter Teach In Mode to Pressure channel A 2 Set the Teach In Start parameter to ac...

Page 25: ...71 kPa 41 kPa 71 kPa 41 kPa Hysteresis B 20 kPa 10 kPa 20 kPa 10 kPa Process quality monitoring 50 50 50 50 threshold evacuation time 0 0 0 0 threshold air supply time 0 0 0 0 1 channel A B window comparator 2 channel A threshold value comparator channel B window comparator Tab 14 Default parameter sets 8 Parameter description 8 1 Module parameters Parameter Factory setting Description Short circu...

Page 26: ...tion LSEN Active Inactive Switching point B1 SPB1 0 99 kPa Switching point B2 SPB2 0 99 kPa Hysteresis B HYB 0 99 kPa Process quality monitoring 0 100 threshold evacuation time tE 0 10000 ms threshold air supply time tB 0 10000 ms Tab 17 Parameter set 0 to 3 Parameters for teach in Parameter Min Max Factory setting Learning mode Inactive Pressure Channel A Pressure Channel B Time Process quality I...

Page 27: ...ion time exceeded E3 24 Diagnostic process quality E2 23 16 Process quality E1 15 8 Pressure value kPa 7 3 Not assigned 2 Open load short circuit 1 Switching output B E0 0 Switching output A Tab 19 Process input data Process output data Byte Bit Description A4 39 32 Not used A3 31 24 Not used A2 23 16 Not used A1 15 8 Selection of parameter set 7 3 Not assigned 2 Not used 1 Vacuum generation A0 0 ...

Page 28: ...cleaning agents 3 Check air filter at vacuum connection for contamination and clean if necessary 10 Malfunctions 10 1 Diagnostics Error code1 Event type LED dis play Status2 Description Remedy 11 Error Short circuit at valve 13 Error Wire break at valve Replace valve 3 Error Internal communication error Check contacts and interlinking screws Error message check bus node 28 Warning Flashing Illumin...

Page 29: ...ror code can be displayed Tab 22 Error codes 10 2 Fault clearance Fault description Cause Remedy Device independent vacuum between workpiece and suction gripper ejector pulse not activ ated or sufficiently dimensioned Activate ejector pulse when lift ing the suction gripper Increase duration and intensity of ejector pulse è 6 2 Configure ejector pulse Tubing dimensioned incorrectly Replace tubing ...

Page 30: ... 1 Nm 10 12 Technical data VABF VH 14 VL 14 VH 20 VL 20 VH 30 A AP A AP A AP A AP A AP General Mounting position Any Weight g 886 902 886 902 893 909 927 943 927 943 CE marking declaration of conformity è www festo com sp In accordance with EU EMC Directive Characteristic values Operating pressure bar 4 8 Pilot pressure bar 4 10 Pressure measuring range bar 1 0 Overload pressure at vacuum port bar...

Page 31: ... air in accordance with ISO 8573 1 2010 7 4 4 Note on the operating medium Lubricated operation not possible Note on materials RoHS compliant Protection class III Degree of protection IP 65 Materials Seals NBR HNBR Female nozzle POM Housing Wrought aluminium alloy Plate Die cast aluminium Adjusting screw High alloy stainless steel Silencer PU foam POM Jet nozzle Wrought aluminium alloy Screws Stee...

Page 32: ...rization is prohibited Offenders will be liable for damages All rights reserved in the event that a patent utility model or design patent is registered Copyright Festo SE Co KG Ruiter Straße 82 73734 Esslingen Germany 49 711 347 0 49 711 347 2144 Fax service_international festo com www festo com Internet Phone e mail ...

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