PACSystems™ RX3i and RSTi-EP CPU Reference Manual Section 2
GFK-2222AK October 2019
CPU Features & Specifications 25
▪ If the temperature continues to rise and reaches the specification limit, the CPU goes
into a firmware-controlled reset.
▪ Uniquely, the CPE400 and CPL410 turn on its TEMP LED, using amber.
▪ Following reset, the CPU continues to monitor the internal temperature.
▪ If the temperature falls sufficiently (i.e. by 10°C or 18°F), the CPU will automatically
attempt to restart.
▪ If the CPU is manually restarted before the temperature drops to the automatic
restart level, the CPU will attempt to restart, and will monitor its internal
temperature as before.
▪ Upon successfully restarting, the Overtemp Fault will be recovered, providing the
CPU has been connected to an Energy Pack. If there is no Energy Pack connected, or
if the Energy Pack has discharged, the Overtemp Fault will be lost.
▪ The CPE400 and CPL410 always turns off its TEMP LED at power-up.
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