PCB Piezotronics IMI SENSORS 686 Series Installation And Operating Manual
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PCB Piezotronics IMI SENSORS 686 Series Installation And Operating Manual

Smart vibration switch
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Model EX686B71
Smart Vibration Switch
Installation and Operating Manual
For assistance with the operation of this product,
contact PCB Piezotronics, Inc.
Toll-free: 800-959-4464
24-hour SensorLine: 716-684-0001
Fax: 716-684-3823
E-mail: imi@pcb.com
Web: www.imi-sensors.com

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Summary of Contents for PCB Piezotronics IMI SENSORS 686 Series

  • Page 1 Model EX686B71 Smart Vibration Switch Installation and Operating Manual For assistance with the operation of this product, contact PCB Piezotronics, Inc. Toll-free: 800-959-4464 24-hour SensorLine: 716-684-0001 Fax: 716-684-3823 E-mail: imi@pcb.com Web: www.imi-sensors.com...
  • Page 2  Assistance is needed to safely operate equipment  PCB Piezotronics is an ISO-9001 certified company whose Damage is visible or suspected  calibration services are accredited by A2LA to ISO/IEC Equipment fails or malfunctions 17025, with full traceability to SI through N.I.S.T.
  • Page 3 CAUTION Refers to hazards that could damage the instrument. NOTE Indicates tips, recommendations and important information. The notes simplify processes and contain additional information on particular operating steps. The following symbols may be found on the equipment described in this manual: This symbol on the unit indicates that high voltage may be present.
  • Page 4 PCB工业监视和测量设备 - 中国RoHS2公布表 PCB Industrial Monitoring and Measuring Equipment - China RoHS 2 Disclosure Table 有害物质 镉 汞 铅 (Pb) 六价铬 (Cr(VI)) 多溴联苯 (PBB) 多溴二苯醚 (PBDE) 部件名称 (Hg) (Cd) 住房 PCB板 电气连接器 压电晶体 环氧 铁氟龙 电子 厚膜基板 电线 电缆 塑料 焊接...
  • Page 5 Component Name Hazardous Substances Lead (Pb) Mercury (Hg) Cadmium (Cd) Chromium VI Polybrominated Polybrominated Compounds Biphenyls (PBB) Diphenyl Ethers (Cr(VI)) (PBDE) Housing PCB Board Electrical Connectors Piezoelectric Crystals Epoxy Teflon Electronics Thick Film Substrate Wires Cables Plastic Solder Copper Alloy/Brass This table is prepared in accordance with the provisions of SJ/T 11364.
  • Page 6 686-Series Smart Vibration Switch Operating Guide with Enclosed Warranty Information 3425 Walden Avenue, Depew, New York 14043-2495 Phone (716) 684-0003 Fax (716) 684-3823 Toll Free Line 1-800-959-4IMI MANUAL NUMBER: 40112 MANUAL REVISION: ECO: 49766 ECN NUMBER: 47032 PAGE 1...

  • Page 7: Table Of Contents

    Table of Contents Introduction ..............................Page 3 General Features Operating Principles ............................Page 4 Benefits of Solid State Relays Installation ................................ Page 5 Direct Adhesive Mount Standard Stud Mount Adhesive Stud Mount Magnetic Mount Wiring ................................Page 9 Legend Indicating a High Level of Vibration in a Motor Indicating High Levels of Vibration Simultaneously in Series (Such as Fan &...

  • Page 8: Introduction

    Introduction The 686-Series Smart Vibration Switch is a low-cost electronic vibration switch designed to monitor vibration levels on rotating machinery (ie. fans and cooling towers) and trip an alarm or shut down machinery when a specified vibration limit is exceeded. An onboard accelerometer with precision, microprocessor-controlled electronics ensures reliable operation and accuracy.

  • Page 9: Operating Principles

    Operating Principles The Smart Switch operates over just two wires. It installs in series with any load (ie. annunciator, PLC or relay coil). To energize itself, the vibration switch scavenges power from the load’s power source. When the alarm threshold is exceeded, the switch is activated and the load’s power circuit is completed to facilitate the desired alarm or shutdown.

  • Page 10: Installation

    Installation When choosing a mounting method, consider closely the advantages and disadvantages of each technique. Typical mounting types are stud, direct adhesive, adhesive mounting base and magnetic mounting base. Note: For a complete list of product specifications, see the “Specification Sheet” and “Outline Drawing” at the end of this Manual.

  • Page 11: Standard Stud Mount

    Standard Stud Mount Procedure This mounting technique requires smooth, flat contact surfaces for proper operation and is recommended for permanent and/or secure installations. Stud mounting is also recommended when testing at high frequencies. Note: Do not attempt mounting on curved, rough or uneven surfaces, as the potential for misalignment and limited contact surface may significantly reduce the sensor’s upper operating frequency range.

  • Page 12: Adhesive Stud Mount

    Adhesive Stud Mount Procedure Adhesive mounting is often used for temporary installation or when the machine surface cannot be adequately prepared for stud mounting. Adhesives like hot glue or wax work well for temporary mounts; two-part epoxies and quick-bonding gels provide a more permanent mount. Note: Adhesively mounted sensors often exhibit a reduction in high-frequency range.

  • Page 13: Magnetic Mount

    Magnetic Mount Procedure Magnetic mounting provides a convenient means for making portable measurements and is commonly used for machinery monitoring and other portable or trending applications. Note: The correct magnet choice and an adequately prepared mounting surface are critical for obtaining reliable measurements, especially at high frequencies.

  • Page 14: Wiring

    Wiring On the following pages are eleven different wiring scenarios for the Smart Switch. The wiring legend below is applicable to all wiring diagrams. Figure 7 – Wiring Diagrams Legend For those wiring scenarios that suggest the use of an external electromechanical relay, IMI suggests Omron general purpose relays as listed below.

  • Page 15: Indicating A High Level Of Vibration In A Motor

    Indicating a High Level of Vibration in a Motor Figures 8 and 9 – Indicating a High Level of Vibration in a Motor Pushing the Start pushbutton closes the M contacts and starts the motor. If the start-up delay option for the switch is enabled, the Smart Switch will not trip regardless of the vibration level during the specified delay time.
  • Page 16 Indicating High Levels of Vibration Simultaneously in Series (Such as Fan & Motor) Figures 10 and 11 – Indicating High Levels of Vibration Simultaneously in Series (Such as Fan & Motor) The Smart Switches are hooked up in series and installed on the two most loaded bearings across the coupling in the horizontal direction.

  • Page 17: Constant Siren Alarming In The Event Of High Vibration Levels

    Constant Siren Alarming in the Event of High Vibration Levels Figure 12 – Constant Siren Alarming in the Event of High Vibration Levels The Smart Switch is hooked up for automatic constant siren alarming when the alarm threshold level is exceeded. Pushing the Start pushbutton closes the M contact and starts the motor.
  • Page 18 Using Two Switches in Parallel to Monitor Two Axes Simultaneously on Same Motor Figures 13 and 14 – Using Two Switches in Parallel to Monitor Two Axes Simultaneously on Same Motor The Smart Switches are hooked up in parallel and installed on the motor in horizontal and vertical directions. Pushing the Start pushbutton closes the M contact and starts the motor.
  • Page 19 Since the NL (non-latching) option is specified, the alarm siren will sound while alarm threshold on one or both switches is exceeded. Should the vibration level for both switches drop below the alarm threshold value (based also on the specified hysteresis), the alarm siren will turn off. PAGE 14...
  • Page 20 Using Three Switches in Parallel to Monitor Three Motors Simultaneously The three Smart Switches are hooked up in parallel and installed on each motor in the horizontal direction. This provides an economical solution for monitoring a group of machinery while only having to run one cable.

  • Page 21: Automatic Machinery Shutdown Using An External Electromechanical Relay

    Automatic Machinery Shutdown Using an External Electromechanical Relay Figures 17 and 18 – Automatic Machinery Shutdown Using an External Electromechanical Relay The Smart Switch is hooked up for automatic motor shutdown when the alarm threshold level is exceeded. The switch should be mounted in the horizontal direction on the bearing carrying the most load. Pushing the Start pushbutton closes the M contact and starts the motor.

  • Page 22: Automatic Machinery Shutdown Using External Electromechanical Relay While Monitoring 2 Axes

    Automatic Machinery Shutdown Using an External Electromechanical Relay While Monitoring 2 Axes Figures 19 and 20 – Automatic Machinery Shutdown Using an External Electromechanical Relay While Monitoring 2 Axes The Smart Switches are hooked up in parallel for automatic motor shutdown when the alarm threshold level is exceeded on either switch.
  • Page 23 Using the Switch and External Latching for Automatic Machinery Shutdown Figure 21 – Using the Switch and External Latching for Automatic Machinery Shutdown The Smart Switches are hooked up for automatic motor shutdown in case of high vibration levels on critical machinery.

  • Page 24: Both Alarm Siren And Automatic Machinery Shutdown Using Two Switches

    Both Alarm Siren and Automatic Machinery Shutdown Using Two Switches Figure 22 – Both Alarm Siren and Automatic Machinery Shutdown Using Two Switches The Smart Switches are hooked up for providing alarm siren and automatic motor shutdown when the alarm threshold levels are exceeded.

  • Page 25: Automatic Machinery Shutdown Based On Normally Open Solid State Relay

    Automatic Machinery Shutdown Based on Normally Open Solid-State Relay Figure 23 – Automatic Machinery Shutdown Based on Normally Open Solid-State Relay The Smart Switch is hooked up to provide automatic motor shutdown when the alarm threshold level is exceeded. Pushing the Start pushbutton closes the M contact, and since the switch is Normally Closed, the solid state relay will be energized and the RL contacts will be closed.
  • Page 26 Automatic Machinery Shutdown of Three-Phase Electrical Motor Based on a N.O. Solid State Relay Figure 24 – Automatic Machinery Shutdown of 3-Phase Electrical Motor Based on a N.O. Solid State Relay The Smart Switch is hooked up to provide automatic motor shutdown when the alarm threshold level is exceeded using a normally open three channel solid state relay.

  • Page 27: Programming Software

    Programming Software The Smart Switch can be user-programmed with the optional Model 600A29 Programming Kit. The kit includes USB programmer cable/dongle (Model 070A100), software (Model EE225), terminal block/integral cable adapter (Model 042M17) and magnet clip (Model 080A214). The software can also be downloaded from IMI’s website, www.pcb.com.
  • Page 28 Figure 27 – National Instruments Software License Agreement Figure 28 – Installation Verification Screen Figure 29 – Installation Complete Screen PAGE 23...
  • Page 29 After the software completes, the USB driver installer will start automatically. The initial USB installer will look similar to the one below. Figure 30 – WinUSB Driver Installation Screen The drivers will now be properly installed and you should get the following screen. Click “Finish”. The software is now ready to use.

  • Page 30: Running The Software

    Running the Software Connect the USB programmer cable to the Smart Switch. Hold a magnet to the indicated MAVT™ point on the Smart Switch. Wait about 2 seconds. While keeping the magnet against the Smart Switch, connect the USB programmer cable to a USB port on the PC. Run the software from the Start | All Programs | PCB EE225 Software menu item.
  • Page 31 To select a device, click on the Device Select pull down menu and select the device you’d like to program. In this case, select 686. Figure 34 – Device Selection Once a product is selected, the software will prompt you to confirm connection of the sensor to the PC using the USB programmer cable.

  • Page 32: Programming Sections

    Programming Sections The screen has two sections:  Actual 686 Settings – This section shows the settings currently programed in the sensor.  686 Settings to Write – This section shows the options for programming the sensor. Figure 36 – Typical Smart Switch Screen After Successful Parameter Read Reading and Writing Parameters ...

  • Page 33: Parameter Options

    Parameter Options The software presents one read-only parameter (Actual Vibration) and several parameters that can be programmed to optimize performance of the Smart Switch. At any point during the programming process, the values can be changed between imperial and metric measurements by clicking the Units dropdown in the top navigation menu and then selecting the appropriate measurement type.

  • Page 34: Execution Of Delays

    Unless otherwise specified, the Smart Switch comes from the factory with a set of default parameters. The specific set of parameters depends on the last alphanumeric character in the model number. Last Alphanumeric Character MAVT™ Enabled Alarm Threshold 0.60 ips Hysteresis Relay Contacts- Normally...

  • Page 35: Magnetically Adjustable Vibration Threshold (Mavt™)

    Magnetically Adjustable Vibration Threshold (MAVT™) Magnetically Adjustable Vibration Threshold (MAVT™) is a Smart Switch selectable feature via USB programming. This unique capability allows the alarm threshold value to be determined and set automatically by the Smart Switch based on the actual vibration level being measured by it. This convenient feature permits any machine to be protected by a vibration switch within seconds without knowing anything about its vibration levels.

  • Page 36: Factory-Programmed Ordering Guide

    Factory Programmed Ordering Guide Figure 39 – Ordering Guide PAGE 31...

  • Page 37: Battery-Powered Signal Conditioner

    Battery-Powered Signal Conditioner Power supply/signal conditioner (Model 480C02) is for use with the Smart Switch when determining the alarm threshold level using the MAVT™ feature. The built-in meter indicates when the process is complete. See www.pcb.com for product details. Figure 40 – Battery Powered Signal Conditioner Calibration Cable The calibration cable (Model 052BR010AC) is a 10 foot, twisted-pair, shielded cable with a 2-Pin MIL type connector terminating to a BNC plug for use with 480C02 power supply and Smart Switch.
  • Page 38 Figures 42 and 43 – Magnet Clip with and without Smart Switch PAGE 33...

  • Page 39: Cable Ordering Information

    Cable Ordering Information Go to www.pcb.com for complete information on cables. IMI Part Number: 052 Cable Model Series Polyurethane, Shielded, Twisted Pair Armored Polyurethane, Shielded, Twisted Pair Switch Connector Type 2 socket MIL type with environmental boot 2 socket MIL type high temp with strain relief 2 socket MIL type molded composite 2 socket MIL type molded composite, right angle Cable Length...

  • Page 40: Esd Sensitivity

    Warning 2 – ESD sensitivity This equipment is designed with user safety in mind; however, the protection provided by the equipment may be impaired if the equipment is used in a manner not specified by PCB Piezotronics, Inc. Caution 1 – ESD sensitivity Cables can kill your equipment.

  • Page 41: Customer Service

    Customer Service IMI, a division of PCB Piezotronics, guarantees Total Customer Satisfaction. If, at any time, for any reason, you are not completely satisfied with any IMI product, IMI will repair, replace, or exchange it at no charge. You may also choose to have your purchase price refunded.
  • Page 42 Model Number Revision: A SMART VIBRATION SWITCH 686B71 ECN #: 39883 Performance ENGLISH OPTIONAL VERSIONS Alarm Threshold(± 10 %) 0.25 to 5 in/sec pk 4.5 to 90 mm/s rms Optional versions have identical specifications and accessories as listed for the standard model except where noted below.
  • Page 44 EU Declaration of Conformity PS060 In Accordance with ISO/IEC 17050 Manufacturer: PCB Piezotronics, Inc. Authorized PCB Piezotronics Europe GmbH European Porschestrasse 20-30 3425 Walden Avenue Representative: 41836 Hückelhoven,Germany Depew, New York 14043 USA Certifies that type of equipment: ® Industrial Sensor(s)
  • Page 45 Notified Body Name Laboratoire Central des Industries Electriques (0081) Notified Body’s FONTENAY-AUX-ROSES (Head Office Address 33, avenue du Général Leclerc FR- 92260 Fontenay-aux-Roses Tel. : + 33 1 40 95 60 60 Fax : + 33 1 40 95 86 56 I, the undersigned, hereby declare that the equipment specified above conforms to the above Directive(s) Standard(s) Place: Depew, NY Date: 07/02/2021 Signature:...

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