Pepperl+Fuchs VIM8 Series Manual
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Pepperl+Fuchs VIM8 Series Manual

Vibration sensors
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VIM8* Vibration Sensors
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PL d
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Summary of Contents for Pepperl+Fuchs VIM8 Series

  • Page 1 VIM8* Vibration Sensors Manual PL d...
  • Page 2 Phone: +49 621 776 - 0 E-mail: info@de.pepperl-fuchs.com North American Headquarters Pepperl+Fuchs Inc. 1600 Enterprise Parkway Twinsburg, Ohio 44087 Phone: +1 330 425-3555 E-mail: sales@us.pepperl-fuchs.com Asia Headquarters Pepperl+Fuchs Pte. Ltd. P+F Building 18 Ayer Rajah Crescent Singapore 139942 Phone: +65 6779-9091 E-mail: sales@sg.pepperl-fuchs.com https://www.pepperl-fuchs.com...

  • Page 3: Table Of Contents

    VIM8* Vibration Sensors Contents Introduction........................ 4 Content of this Document ................4 Target Group, Personnel ................4 Symbols Used ....................5 Intended Use ....................5 General Safety Instructions ................6 Product Description ....................7 Use And Application..................7 Display and Operating Elements..............7 Vibration Monitoring..................

  • Page 4: Introduction

    VIM8* Vibration Sensors Introduction Introduction Content of this Document This document contains information that you need in order to use your product throughout the applicable stages of the product life cycle. These can include the following: • Product identification • Delivery, transport, and storage •...

  • Page 5: Symbols Used

    VIM8* Vibration Sensors Introduction Symbols Used This document contains symbols for the identification of warning messages and of informative messages. Warning Messages You will find warning messages, whenever dangers may arise from your actions. It is mandatory that you observe these warning messages for your personal safety and in order to avoid prop- erty damage.

  • Page 6: General Safety Instructions

    In the event of any serious errors, stop using the device. Secure the device against unintended operation. To have the device repaired, return it to your local Pepperl+Fuchs representative or your sales center. Note Disposal Electronic waste is dangerous.

  • Page 7: Product Description

    VIM8* Vibration Sensors Product Description Product Description Use And Application The vibration sensors of the VIM8* product family determine the vibration magnitude using the root mean square (RMS) method. This form of quadratic average determination or pre-filtering allows precise statements to be made about trends relating to the status of the application. Depending on the product versions, the vibration magnitude is determined either as the vibra- tion acceleration (in g rms) or as the vibration velocity (in mm/s).

  • Page 8: Display And Operating Elements

    VIM8* Vibration Sensors Product Description Display and Operating elements The VIM8* product family of vibration sensors have indicator and operating elements as shown below. Figure 2.1 Housing cover "LIM2 SET" rotary switch for setting the upper switching threshold LED indicators for upper switching threshold LIM2 "LIM2 Time"...

  • Page 9: Vibration Monitoring

    VIM8* Vibration Sensors Product Description Vibration Monitoring 2.3.1 Vibration Velocity Operating Range The operating range of the vibration velocity is not constant over the entire measuring range. It always depends on the current frequency at which the vibration sensor is vibrating. Essentially, the higher the current frequency, the lower the detectable vibration velocity.

  • Page 10: Frequency Response

    VIM8* Vibration Sensors Product Description Reading Example Frequency (Hz) Maximum Measurable Vibration Velocity (mm/s) 1000 Table 2.1 2.3.2 Frequency Response The typical frequency response of vibration monitoring for two frequency ranges is depicted below. Frequency Response: 10 Hz to 1000 Hz The cut-off frequencies are 10 Hz and 1000 Hz with -3 dB damping.
  • Page 11 VIM8* Vibration Sensors Product Description Frequency Response: 1 Hz to 1000 Hz The frequency response was recorded using two reference sensors. The cut-off frequencies are 1 Hz and 1000 Hz with -3 dB damping. Figure 2.4 Frequency in Hz Gain in dB...

  • Page 12: Bearing Status Parameter

    VIM8* Vibration Sensors Product Description 2.3.3 Bearing Status Parameter Some product versions have an additional analog current output that outputs a bearing status parameter. This is weighted according to DIN ISO 13373-3 and enables rolling-element bear- ings to be diagnosed according to DIN ISO 13373-3. The bearing status parameter according to DIN ISO 13373-3 considers the ratio of the highest peak value of the acceleration in m/s to the root mean square of the acceleration in m/s...

  • Page 13: Accessories

    VIM8* Vibration Sensors Product Description Ranges and their output signals Range Meaning Output signal I [mA] Range 1 The bearing status parameter is very small. No bearing 4  I  8 damage can be detected. We recommend that you repeat the measurement or adjust the installation location.

  • Page 14: Installation

    VIM8* Vibration Sensors Installation Installation Instructions for Mechanical and Electrical Installation Note Further installation-relevant information on technical data, mechanical data, and available connection lines for the relevant vibration sensor types can be found in the corresponding datasheet. Always observe the following instructions to ensure safe operation of the vibration sensor: Warning! Work must be performed by trained and qualified personnel only.
  • Page 15 VIM8* Vibration Sensors Installation Caution! The housing must be grounded. The housing of the vibration sensor must be grounded when mounting, either via the machine body or via a separate protective conductor (PE). Caution! Do not perform any electrical modifications! It is not permitted to perform electrical modifications on the vibration sensor.

  • Page 16: Mounting

    VIM8* Vibration Sensors Installation Mounting Prerequisites Mounting the vibration sensor on the mounting surface: • The mounting surface must be clean and flat, i.e., free of paint, rust, etc. • The measuring head surface of the vibration sensor must lie flat on the mounting surface. •...

  • Page 17: Tamper Protection Of The Vibration Sensor

    VIM8* Vibration Sensors Installation For plug versions: Connect the connection cable and note that the tightening torque of the connector's M12 union nut must not exceed 0.4 Nm. Tamper Protection of the Vibration Sensor Note Since safety-relevant settings for vibration monitoring can be changed by third parties by unscrewing the housing cover, we recommend sealing the vibration sensor with a sealing label.

  • Page 18: Electrical Installation

    VIM8* Vibration Sensors Installation Electrical Installation Note Installation Diagram Earth and ground loops are among the most common problems when using measuring setups with sensitive sensor technology. These loops are caused by unwanted differences in potential in the circuit between the sensor and the control interface. Two different grounding concepts are described below.
  • Page 19 VIM8* Vibration Sensors Installation The following diagram applies to each version with an integrated cable outlet or to each plug version that is used in combination with a suitable P+F connection cable accessory. This grounding concept is also recommended if no sources for EMC pollution, such as frequency inverters, are used on the machine side.
  • Page 20 VIM8* Vibration Sensors Installation Grounding Concept 2 (Special Case) Only applicable for: • Versions with an integrated cable outlet • Plug versions with connection cable accessories from third-party suppliers. • Assumption: Earth loops are expected. Situation/Requirements of the Application Effects of the Grounding Concept •...

  • Page 21: Parameterization

    VIM8* Vibration Sensors Parameterization Parameterization Vibration Sensors for Vibration Velocity with Pre-Alarm and Main Alarm Vibration sensors for monitoring vibration velocity have adjustable switching thresholds as limit values and adjustable delay times for generating a pre-alarm and a main alarm via relay out- puts.
  • Page 22 VIM8* Vibration Sensors Parameterization The VIM8* product family of vibration sensors have indicator and operating elements as shown below. Figure 4.2 Housing cover "LIM2 SET" rotary switch for setting the upper switching threshold LED indicators for upper switching threshold LIM2 "LIM2 Time"...
  • Page 23 VIM8* Vibration Sensors Parameterization Adjustable Limit Values and Delay Times The rotary switches for limit values (switching thresholds) and delay for the response times each have 16 positions. The measuring range of the vibration monitoring is divided into 16 lin- early rising stages.
  • Page 24 VIM8* Vibration Sensors Parameterization The delay time is used to stop the relay outputs from switching back and forth. The delay time specifies the minimum time that the vibration measurement must be above the set limit value for the relay output to be able to switch.

  • Page 25: Vibration Sensors For Vibration Acceleration With Window Function

    VIM8* Vibration Sensors Parameterization Vibration Sensors for Vibration Acceleration with Window Function Vibration sensors for monitoring vibration acceleration have a window function to set a lower and upper switching threshold for alarm signals. The lower limit value of the window range is set at switching threshold LIM1 and the upper limit value is set at switching threshold LIM2.
  • Page 26 VIM8* Vibration Sensors Parameterization The VIM8* product family of vibration sensors have indicator and operating elements as shown below. Figure 4.5 Housing cover "LIM2 SET" rotary switch for setting the upper switching threshold LED indicators for upper switching threshold LIM2 "LIM2 Time"...
  • Page 27 VIM8* Vibration Sensors Parameterization Note Select the setting for LIM1 SET as a lower switching threshold less than LIM2 SET, otherwise the device will not save the setting. Limit values (mm/s) SET position Measuring range in g 0, 1 0 ... 2 0 ...
  • Page 28 VIM8* Vibration Sensors Parameterization Switching Characteristics Output 2 (relay 2) Switching status Closed Open Output 1 (relay 1) Switching status Closed Open Response time Vibration variable Switching threshold Output 1 (realy 1) Switching threshold Response Output 2 time (relay 2) Figure 4.6 Parameterizing the Device The device is parameterized via LIM1, LIM2, and TIME HEX switches.

  • Page 29: Troubleshooting

    In case of a fault, use the following checklist to determine whether a fault with the vibration monitoring can be remedied. If none of the information provided in the checklist solves the problem, contact Pepperl+Fuchs via your sales office with any queries. Have details of the model number and firmware version of the sensor ready if possible.

  • Page 30: Repair And Servicing

    VIM8* Vibration Sensors Repair and Servicing Repair and Servicing The device must not be repaired, changed, or manipulated. In case of failure, always replace the device with an original device.
  • Page 31 Pepperl+Fuchs Quality Download our latest policy here: www.pepperl-fuchs.com/quality www.pepperl-fuchs.com © Pepperl+Fuchs · Subject to modifications / DOCT-8222...

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