Ingersoll-Rand Xe-145M, Pocket Manual

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Main Motor Overload Relay (FR1)
Connected to the bottom of KM1, the
main motor overload relay provides
protection in the event of an
overcurrent condition in the motor
windings. It is adjustable per the
nominal current and service factor
values found on the motor data tag. For Settings see
Tech Note
FR1 is normally closed and sends a trip signal to the
controller P3 terminal, opening the digital signal at
cables 95-96.
1ATS
– High Air Temperature Switch for RS
A normally closed switch installed
in the discharge port of the Air
End, and opens when the
discharge temperature rises
above 245°F (118°C). The
mechanical switch serves as a
back
‐
up for the usual controller temperature shutdown
at 228°F (109°C). 1ATS is connected in the 110/120
VAC circuit to P1-1 and should it open, the Xe shuts