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Watchdog Timer - Brentek M-WDT5 2 Second Fixed Timeout, M case
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About Watchdog Timer - Brentek M-WDT5 2 Second Fixed
Brentek’s M-WDT5 Watchdog Timer Module monitors a control system’s activity by detecting on/off transitions of a control line. During normal system operation, the watchdog’s internal timer is continually reset by control line activity and its dry-contact output remains energized. When control is lost (control line stops toggling), the timer times-out and de-energizes the output contact, indicating “Loss of Control”. This Watchdog Timer's timeout period is factory-set to 2 seconds. Loss of Control is caused by problems such as CPU latch-up, control system faults, wiring/cabling failure, unanticipated software conditions, communications problems, or power failures. The system designer can use the watchdog timer's output contact to address Loss-of-Control by energizing an alarm, shutting down the system, or providing a reset signal to the CPU/controller. The M-WDT5 Watchdog Timer Modules use patented timing technology to monitor control system integrity. It works with 5 Volt logic and has a two second timeout. The output is a dry contact relay which is rated at 1 Amp resistive (20VA) and is configured to Fail-OPEN. The M-WDT5 has a very compact footprint and provides direct plug-in compatibility with Industry-standard I/O racks from Brentek, Grayhill (70M), and Crouzet.(M). Full technical specifications and options information (including timeout options) can be found at www.brentek.com.
