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Related Manuals for Marley IMI 686B
Summary of Contents for Marley IMI 686B
- Page 1 IMI 686B vibration switch I N STA L L AT I O N - O P E R AT I O N - M A I N T E N A N C E...
- Page 2 20mA value. The IMI 686B vibration switch has a single contact. If two contacts are required use a Marley IB1 interface box or one of the output fault contacts on the VFD to indicate a VFD shutdown.
- Page 3 installation Sequence of Operation In normal operation the switch is in a N.C. (normally closed) position with or without power applied. Once powered, the switch will remain in a closed state allowing mechanical equipment to operate. If the switch is subjected to a continuous high vibration level for 3 seconds or more the switch will open and remain open in a latched state until reset back to a closed position.
- Page 4 Two-Wire Control Circuit using an SPST Switch Typical connection points for the IMI 686B vibration switch used with the E-Clipse bypass terminal strip of an ABB ACH550 VFD. Breaking the control circuit between points 1 and 7 will disable VFD and bypass operation.
- Page 5 • Depress and hold the reset button for 15 seconds to reset the vibration switch. A Marley IB1 interface box is available to help with connecting the vibration switch to other equipment such as a motor starter or other VFDs. The interface box provides a second contact which may be used to complete an alarm circuit at the BMS, reset push button and tripped indicating light.
- Page 6 frequently asked questions Voltage Ratings Q What are the available voltage ratings? 24 to 240 VDC/AC - 50/60Hz. Sensor Q Is the switch solid state? Yes — a piezoelectric accelerometer senses the vibration level to activate a solid state relay when tripped. There are no mechanically moving parts. Q Is the switch factory programmed? Yes —...
- Page 7 Integration Q Can the switch be interfaced with the VFD in the Marley AIO control panel? Yes — the Marley AIO panel provides circuits to shut down the VFD and a status contact used for a remote BMS.
- Page 8 IMI vibration switch U S E R M A N UA L Specifications Part SPX Factory Description Enclosure Rating Cable Standards Number Programmed 30' (9m) with water- Standard Vibration NEMA4X/IP68 tight molded connection 0.7 ips peak with 2598732 Switch Stainless Steel at switch and flying 3 second delay ends at opposite end...
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