Bently Nevada 3500/94 VGA Display Module PWA 145988-01 Rev. K

Bently Nevada 3500/94 VGA Display Module PWA 145988-01 Rev. K Description:

Unik You
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The 3500 Rack supplies an overall Rack OK relay in addition to any alarm relays in the rack. The Rack OK relay is in the TDI’s I/O module and is connected to the OK circuits of all modules in the rack. These OK circuits monitor the operating condition of each module. Any fault in the module, its transducers, or associated transducer field wiring will be annunciated by the Rack OK relay. This relay is a single-pole, double-throw (SPDT) type and is normally energized, providing added capability of annunciation in the event of primary power loss.

3500 System Configuration software facilitates programing “Alarm Drive Logic” that controls relay actuation. This logic can be based on various combinations of alarms, ranging from an individual channel’s Alert, Danger, or NOT OK status to highly complex Boolean expressions that combine two or more channel statuses to provide special AND or OR voting.