Festo OVEM Operating Instructions Manual
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Festo OVEM Operating Instructions Manual

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Vacuum generator
OVEM
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Operating
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8068021
1702e
[8068023]

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Summary of Contents for Festo OVEM

  • Page 1 Vacuum generator OVEM Operating instructions 8068021 1702e [8068023]...
  • Page 2 Text designations: • Activities that may be carried out in any order 1. Activities that should be carried out in the order stated – General lists è Result of an action/References to more detailed information Festo – OVEM – 1702e...

  • Page 3: Table Of Contents

    ........6.2.5 Deleting the minimum or maximum pressure value ..... . Festo – OVEM – 1702e English...
  • Page 4 ........... . . Festo – OVEM – 1702e English...

  • Page 5: Product Description

    Supply port (1) Vacuum sensor with LCD display and operating keys è Fig. 13 Exhaust port / silencer (3) Vacuum connection (2) electrical connection Housing with mounting holes Fig. 1 Control sections and connections Festo – OVEM – 1702e English...

  • Page 6: Characteristics

    OVEM Characteristics Characteristic Code Meaning Vacuum suction nozzle OVEM Vacuum suction nozzle with vacuum solenoid valve ON/OFF and electric manual override Nominal width of laval 0.45 mm nozzle 0.7 mm 0.95 mm 1.4 mm 2.0 mm Vacuum type high vacuum...

  • Page 7: Security

    Overview of variants Security Use for intended purpose The vacuum generator type OVEM is designed for generating a vacuum. General safety information – The product may only be used in its original status without unauthorised modifications. – Only use the product if it is in an excellent technical status.

  • Page 8: Range Of Applications And Certifications

    Range of applications and certifications Note CE declaration of conformity and certificates è www.festo.com/sp In connection with the UL marking on the product, the information of this section is also applicable for compliance with the certification conditions of Underwriters Laboratories Inc. (UL) for the U.S.A. and Canada.

  • Page 9: Function And Application

    Function and application Function overview The OVEM is a vacuum suction nozzle with digital transmission of setpoint and actual value as well as diagnostics and parameterisation options. Configuration is carried out via the operating keys. The dia­ gnostic messages are shown in the display.

  • Page 10: Switching Functions

    – 2 Teach-in points (TP1, TP2) TP1=SP1 TP2=SP2 TP1=SP2 TP2=SP2 1) TP1 = minimum pressure value, TP2= maximum pressure value, independent of the Teach sequence Tab. 5 Window comparator: setting of switchpoints SP1, SP2 and hysteresis HY Festo – OVEM – 1702e English...

  • Page 11: Valve Control

    The ejector pulse is generated after the signal change “Suction”. The duration of the ejector pulse can be set è Chapter 6.1. – Signal-controlled ejector pulse (only OVEM-...-1PD) The ejector pulse is generated via a control signal at the digital switching input (ejection) DI2. The eject­...
  • Page 12 Switching position of ejector pulse solenoid (suction) DI1 valve Control signal at the digital switching input Vacuum connection (2) (ejection) DI2 (only OVEM-...-1PD) Duration of ejector pulse Switching position of vacuum solenoid valve Fig. 2 Valve control switching behaviour Festo – OVEM – 1702e English...

  • Page 13: Air-Saving Function

    OVEM Air-saving function The air-saving function reduces the air consumption of the vacuum suction nozzle OVEM-...-CE / -OE during the evacuation phase. 50 mbar (fixed) Hysteresis (HY) Threshold value “Switch on suction” Threshold value “Switch off suction” Reset point (RSP1) = switchpoint (SP1) Fig.

  • Page 14: Optimisation Of The Transport Time

    – Error detection è Chapter 7.2 The diagnostic messages are shown in the display. For variants with 2 switching outputs (OVEM-...-2P/-2N), switching output Out B can also be set as diagnostic message channel (dI 1 or dI 2) è Chapter 6.2.3.

  • Page 15: Measured Variables

    Air supply time Fig. 4 Clock cycle – example for Out A (Air-save) The shown sequence of the switching statuses and control signals applies to all product variants except OVEM-...-1PD. Sequence for OVEM-...-1PD è Fig. 2 Festo – OVEM – 1702e English...

  • Page 16: Teach Function (Teach-In)

    After the stop of the Teach-In, a function reserve of 100 % is added to the aver­ aged values. 50 mbar Teach Teach Start Stop Vacuum valve Transport time Cycle time 1 Return time Cycle time 2 Cycle time N Fig. 5 Mode of operation: dynamic Teach-In - Example OVEM-...-CE Festo – OVEM – 1702e English...

  • Page 17: Installation

    Fig. 6 Direct mounting on the side Fig. 7 Direct mounting on the back OVEM Mounting screws OVEM-...-05/ -07/ -10 OVEM-...-14/ -20 Tab. 7 Size of the mounting screws with direct mounting on the side Festo – OVEM – 1702e English...
  • Page 18 Mounting on H-rail H-rail mounting accessory è www.festo.com/catalogue Max. 0.8 Nm • Mount H-rail mounting. • Hang OVEM with H-rail mounting in the H-rail and press in the direction of the arrow. • Secure with screw 1 to the H-rail. Fig. 8...

  • Page 19: Pneumatic

    Min. internal diameter of tubing – Supply port [mm] 1 – Vacuum port [mm] 2 – Exhaust port [mm] 2 Tab. 9 Minimum inside diameter of the connection tubes for connections with G-female thread Festo – OVEM – 1702e English...

  • Page 20: Electric

    Notes on the pneumatic connection – Maximum admissible hose length 2 m – OVEM-...-GN/GO: Pay attention to the minimum inside diameter of the connection tubes è Tab. 9. – Do not seal exhaust port. – OVEM-...-07/-10/-14/-20: If necessary, lengthen silencers with a silencer extension (accessories è...
  • Page 21 Out A/Out A (Air-save) Grey (GY) digital switching input (suction) 1) If the connection line from the accessories is used è www.festo.com/catalogue 2) At the falling edge of the “Suction” control signal, the workpiece is set down. Tab. 10 Pin assignment OVEM-...-2P/-2N...
  • Page 22 OVEM Circuit diagrams OVEM-...-2P OVEM-...-2N OVEM-...-PU OVEM-...-NU OVEM-...-PI OVEM-...-NI OVEM-...-1PD Tab. 13 Circuit diagrams for vacuum suction nozzle Festo – OVEM – 1702e English...

  • Page 23: Commissioning

    Check operating conditions • Check the operating conditions and limit values è Technical data. Place vacuum suction nozzle OVEM-...-OE in operation 1. Apply operating pressure to compressed air supply port (1). è Low pressure is generated at the vacuum connection (2).

  • Page 24: Set The Intensity Of The Ejector Pulse

    If no automatic ejector pulse is generated, operate the mechanical manual override of the eject­ or pulse solenoid valve. 5. Screw out or in the flow control screw until the required intensity of the ejector pulse is set. Setting the ejector pulse duration è Chapter 6.1. Festo – OVEM – 1702e English...

  • Page 25: Operation

    When large suction grippers are used, a vacuum independent of the device can be built up for physical reasons. This might mean that the workpiece does not detach from the suction gripper, even if the ejector pulse is set to a sufficiently long duration. Festo – OVEM – 1702e English...

  • Page 26: Configure The Switching Outputs

    In the following, the process is described using the switching output Out B. Prerequisites: – RUN mode is active. – Switching output Out B is defined as switching output In A1. – Security code is not active. Festo – OVEM – 1702e English...

  • Page 27: Set Diagnostic Message Channel

    4. Set the diagnostic message channel (dI 1 or dI 2) using the A key or B key. 5. Press EDIT button. è [NO] or [NC] flashes. 6. Set the switching characteristic [NO/NC] using the A key or B key. Festo – OVEM – 1702e English...

  • Page 28: Teaching Of Switching Points

    è SHOW mode is active. è If there are errors, the error numbers are indicated. 2. Repeatedly press the A key until the minimum pressure value is displayed. 3. To see the following value, press the A key. Festo – OVEM – 1702e English...

  • Page 29: Configuring The Evacuation And Air Supply Times

    – Switching function is set. 1. Press the A key, B key and the EDIT button simultaneously. è TEACH mode is active. è [TeachIn] and the diagnostics segments flash. 2. Measure at least one clock cycle. Festo – OVEM – 1702e English...

  • Page 30: Displaying The Evacuation And Air Supply Times

    1. To see the following value, press the A key and B key simultaneously. To delete the displayed value, press the EDIT button. 2. Press the A key and B key simultaneously. è RUN mode is active. Festo – OVEM – 1702e English...

  • Page 31: Operating Manual Override

    5. Switching the solenoid valves. – Vacuum solenoid valve: press A key. – Ejector pulse solenoid valve: Press B key. 6. To exit the submenu, press the EDIT button. è RUN mode is active. Festo – OVEM – 1702e English...

  • Page 32: Activating Security Code

    3. Switch the air saving function on or off using the A key or B key. – [ON]: Air saving function active. – [OFF]: Air-saving function not active. 4. Keep EDIT button pressed for 3 seconds. è RUN mode is active. Festo – OVEM – 1702e English...

  • Page 33: Restore Factory Settings

    [bar] –0.7 –0.4 [bar] –0.97 –0.67 Hysteresis [bar] 0.25 Out B [bar] –0.5 –0.2 [bar] –0.71 –0.41 Hysteresis [bar] Duration of ejector pulse [ms] 1) Parameters not available for OVEM-...-1PD Tab. 14 Factory settings Festo – OVEM – 1702e English...

  • Page 34: Error Messages And Fault Clearance

    The diagnostic messages are shown as error code on the display. For variants with 2 switching outputs (OVEM-...-2P/-2N), one of the two logic channels of switching output Out B can in addition be set as a diagnostic message channel è Chapter 6.2.3.

  • Page 35: Error Messages And Error Codes

    • Check trigger levels. (active air saving function and • Check settings for Out A. threshold value comparator) • Check compressed air supply. upper trigger level exceeded or lower trigger level fallen below (window comparator) Festo – OVEM – 1702e English...
  • Page 36 OVEM Display Diagnostic Description Remedy level Er40 Supply voltage too high (warning) • Check the power supply. Er41 Supply voltage too low (warning) Tab. 16 Error messages, error codes, diagnostic levels and error description Festo – OVEM – 1702e English...

  • Page 37: Malfunctions

    Diagnostic level 2 active simultaneously • è Chap. 7.1 Display flashes and error Diagnostic level 3 active code appears [Option] flashes Air-save function deactivated be­ • Check for leakage. cause outside the limit value Tab. 17 Malfunctions Festo – OVEM – 1702e English...

  • Page 38: Maintenance And Care

    2. Carefully pull out the slide 1 up to the first detent. The slide must stay in this position on the filter. 3. Pull out filter 2. Clean, if necessary. 4. Push filter into the housing. 5. Push in slide. è The filter is pushed by the slide into the vacuum suction nozzle. Festo – OVEM – 1702e English...

  • Page 39: Technical Data

    Certification certificate c UL us listed (OL) CE mark In accordance with EU EMC Directive (è www.festo.com/sp declaration of conformity) Characteristic values Operating pressure OVEM-...-QS / -GN / -PL [bar] 2…6 Operating pressure OVEM-...-QO / -GO / -PO [bar] 2…8...
  • Page 40 EN 61000-6-2 Maximum permissible signal line length Materials Information on materials - seals Information on materials - housing Die-cast aluminium, PA reinforced Information on materials - plug housing housing Nickel-plated brass Tab. 18 Technical data Festo – OVEM – 1702e English...

  • Page 41: Appendix

    Toolbar for functions è Tab. 19 range Segment bar to the right: graphic display of the current status of the digital inputs or valve status è Tab. 19 Fig. 13 LCD display and operating keys Festo – OVEM – 1702e English...
  • Page 42 [Option] Air-saving function active [Lock] Security code active Segments display the following: – current status of the digital inputs – current valve status è Tab. 20 and Tab. 21 Tab. 19 Symbolism in display Festo – OVEM – 1702e English...
  • Page 43 Segment L14 + [B] are illuminated + additional function of the electrical manual display <FORC> override via operating buttons Ejector pulse solenoid valve (Eject) switched Tab. 20 OVEM-...-2P/-2N/-PU/-PI/-NU/-NI: additional displays of segment bars – Examples Festo – OVEM – 1702e English...
  • Page 44 Segment L12 + [B] are illuminated + additional function of the electrical manual display <FORC> override via operating buttons Ejector pulse solenoid valve (Eject) switched Tab. 21 OVEM-...-1PD: additional displays of segment bars – Examples Festo – OVEM – 1702e English...

  • Page 45: Operating Statuses And Menu Structure

    – Basic status after the operating voltage is switched on – Display of the current measured value (relative pressure) – Display of the signal statuses of the solenoid valves – Display of the selected inputs and outputs Festo – OVEM – 1702e English...

  • Page 46: Show Mode

    – Display and deletion of the minimum and maximum pressure values – Display and deletion of the minimum and maximum evacuation and air supply time – Display of diagnostic messages Submenu only available for OVEM-...-2P/-2N/-PU/-PI/-NU/-NI Fig. 14 Menu structure SHOW mode Festo – OVEM – 1702e English...

  • Page 47: Edit Mode

    OVEM 11.2.4 EDIT mode – Setting of parameters – Operation of the electrical manual override (FORC) Submenu only available for OVEM-...-CE / -OE Fig. 15 Menu structure EDIT mode Festo – OVEM – 1702e English...

  • Page 48: Teach Mode

    OVEM 11.2.5 Teach mode – Acceptance of the current measured value to determine switchpoints Submenu only available for OVEM-...-2P/-2N Fig. 16 Menu structure for Teach mode Festo – OVEM – 1702e English...
  • Page 49 Copyright: Festo AG & Co. KG Postfach 73726 Esslingen Germany Phone: +49 711 347-0 Fax: +49 711 347-2144 Reproduction, distribution or sale of this document or communica­ E-mail: tion of its contents to others without express authorization is service_international@festo.com prohibited. Offenders will be liable for damages. All rights re­...

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