FAIL-ZERO MODE

(Both Jumpers in B position)

In the "B" position (if the Guard signal remains TRUE), a failure of the AI Command Input signal (value fails below 0%) causes the pressure output to decay to 0% of scale and remain there until a normal AI is received. Should the Guard Input go FALSE prior to the AI command failure, the last pressure output value will be held.

Figure 3-2 - Jumper Location on Analog Termination Board

CI-9110

3-7

Board Setup

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Emerson Process Management CI-9110, Series 9110, 9110-00A instruction manual FAIL-ZERO Mode