Ingersoll-Rand Xe-145M, Pocket Manual

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34
LED 12 serves as a digital input short
notification. See Tech Note 8089 for
more information.
P3 also has Red
LED (LED12) that comes on if any of
the digital input connections from P3 are shorted to
earth ground. The LED is at lower left corner just to left
of "1" of P3.
LED13 comes on if 5VDC is shorted
out on any of the analog inputs. It is
visible through the hole between text
"P4" and text "1" of P4.
Remove pressure transducer
connections one at a time until the LED goes off. Note:
There is a 5 second time delay before LED goes off
after shorted input is removed. Also note that LED
lights lite up when power is applied to the controller
and the turn off after 5 seconds if no short is detected.
Actual P3 terminal (32 connections
total)