rtd IPWR104HR-100W, User Manual

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IPWR104HR 25
RTD Embedded Technologies, Inc
Chapter 5
C
HAPTER
5 POWER SUPPLY DEBUG:
Turn on voltage spike is high:
Caused by long input power leads
Caused by input power leads that are not twisted
Curable by adding over 100uF to input
Power supply shuts down after running for some time
Caused by over temperature
Check case temperature of 5V converter
Curable by adding extra heat sinking and or air flow
Power supply power cycles
Check input power supply
Input supply may not be able to supply enough instantaneous current
Even two different input supplies of the same Wattage may behave differently
Switch to a higher current input supply or a higher frequency input supply
Remove IPWR from stack and check for shorts on the outputs
Check voltage drop across input leads
If they are too long, the voltage drop across them may cause the input at the IPWR
to drop below its minimum value.
The voltage at my CPU is too low for it to start
Check the voltage drop over the bus
Try moving the CPU closer to the IPWR in the stack
Remove boards from stack to isolate the board causing the power draw.