Woodward MicroNet TMR 5009, Инструкция по установке/руководство по оборудованию

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Manual 85580V2 5009 Installation/Hardware
Woodward 71
OVERTEMPERATURE LED
—This red LED gives an early warning of a thermal
shutdown. The LED turns on to indicate when the internal power supply
temperature reaches approximately 80 °C. If the internal supply temperature
rises further to approximately 90 °C the supply will shutdown. Because of the
many variables involved (ambient temperature, load, thermal conductivity
variations) there is no accurate way of predicting the time between the indication
of Overtemperature (LED illuminated) and power supply shutdown. If this LED is
turned on, verify that the fan in the power supply chassis is turning and is free of
dust or other obstructions and that the temperature around the power supply is
less than 55 °C. If the power supply is cooled down without delay, it can recover
from this situation without shutting down. This LED will turn off once the internal
supply temperature decreases below approximately 75 °C.
POWER SUPPLY FAULT
—This red LED turns on when one of the supply’s
three power converters has shut down. If this LED is on, check for a short circuit
on external devices connected to the control’s power supply. Once the short
circuit is removed, the supply may resume normal operation. If no short circuit is
found, try resetting the supply by removing input power for one minute. Once
input power has been restored, if the power supply is still not functioning, verify
that the supply is properly seated to the motherboard connector, if still not
functioning, replace the supply.
Each main power supply must have its own branch circuit rated fuse or circuit
breaker. A main power supply module has internal fuses, however these fuses
do not protect the supply’s input circuitry, and will only open in the event of a
component failure internal to the power supply. If any of the supply’s internal
fuses are open, replace the supply.
To Replace a main power supply (PA1, PA2):
1. Read all warnings on pages v and vi of this Volume before replacing any
module.
2. Remove input power from the power supply being replaced.
3. Unscrew front panel mounting screws, and release the module from the
motherboard connectors by pressing the top handles up and the bottom
handles down.
4. Remove module by pulling straight out.
5. Install a new power supply by aligning the circuit board edges in the card
guides and push the unit into the slots until the connectors on the modules
and the connectors on the motherboard make contact.
6. With even pressure exerted at the top and bottom of the supply’s front panel,
firmly push the unit into place.
7. Tighten the screws that secure the module in place (two at the top and two at
the bottom).
8. Re-apply power to the input of the power supply.