Our Bulletin 1440 XM® 440, 441, and 442 Relay Modules are components of the Electronic Overspeed Detection System (EODS). Three relays act as redundant shutdown relays, and a fourth relay provides alarm annunciation. Overspeed alarm inputs come from three independently connected XM-220 Dual Speed Modules, and the module requires no configuration.
XM-440 Master Relay Module
XM-441 Expansion Relay Module
XM-442 EODS Relay Module
|XM Monitoring Modules Specifications Technical Data||1440-TD001||EN|
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The XM® 442 EODS Relay modules are suitable for use in Electronic Overspeed Detection Systems (EODSs) for rotating machinery. Use this module with three XM-220 Dual Speed Modules to provide the complete measurement and relay components of an EODS.