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Allen Bradley 1756-A7 new with sealed lable 1756A7

Upon a loss of the Extr/Adm input signal during operation, the 505E can be programmed to trip, continue running and ramp the LP valve to its open limit, or continue running and ramp the LP valve to its closed limit. When a failed input is sensed the LP valve limiter steps to the LP valve’s last position, then ramps at a 1% per second rate to its min or max limit 

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