Manual 26489V1
Vertex-Pro Motor-Driven Compressor Control
Woodward
19
POWER SUPPLY FAULT LED
—This red LED turns on when one of the supply’s
three power converters has shut down or one or more of the supply levels is
below internally specified levels. If this LED is on, check for a short circuit on
external devices connected to the control’s power supply. When the short circuit
has been removed, the supply will resume normal operation (Note that if the 24 V
or 5 V outputs are shorted, these power converters will be latched OFF and can
only be cleared by removing the shorted condition and removing the input power
for 1 minute (or until the front panel LED’s extinguish)). If no short circuit is found,
reset the supply by removing input power for one minute. If the power supply is
still not functioning after input power has been restored, verify that the supply is
properly seated to the motherboard connector. If the supply is properly seated
but is not working, then replace the supply.
4.3.2—Power Supply Checks
The following is a troubleshooting guide for checking areas which may present
difficulties. If these checks are made prior to contacting Woodward for technical
assistance, system problems can be more quickly and accurately assessed.
Is the input power within the range of the control’s power supply input?
Is the input power free of switching noise or transient spikes?
Is the power circuit dedicated to the governor only?
Are the control’s supplies indicating that they are OK?
Are the control’s supplies outputting the correct voltage?
Is the CPU Low Vcc LED ON?
Содержание Vertex-Pro
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