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If a minus sign (–) appears in the meter display, the polarity of the 48VDC power to the
cage is reversed. Verify the meter settings and connections. If the meter is properly set
and connected, carefully examine the wiring between the external 48VDC power supply
and/or batteries, determine the location of the polarity reversal, and correct the wiring
error before continuing.
6.
Verify that the PS19 DC power switch is turned OFF (downwards).
Do not insert or remove the power supply unit from the cage when turned ON.
Sudden power surges could damage system components.
7.
Gently insert the PS19 DC power supply completely into its card slot. Push
against the ejectors until the front panel of the power supply is flush with the
front frame of the card cage. A slight resistance can be felt as the multi-pin
connectors on the power supply meet the mating connectors on the backplane and
engage. Do not force the power supply into the slot. If more than slight resistance
is encountered, remove the power supply and examine the connectors for bent
pins or interfering debris.
Fasten the two screws located at the top and bottom of the unit front panel, thus
8.
securing the card to the cage as well as grounding the unit.
Do not proceed until the screws of the power supply card have been fastened to the
cage. If the screws are not fastened, the power supply unit will not be grounded, and
could be subject to hazardous voltages.
9.
Turn the PS19 DC power switch ON, and verify that the green Power indicator is
lit, while the red Alarm indicator is not lit. If the red alarm indicator illuminates,
see
page 7-13, Troubleshooting (PS19
10. Turn OFF (downwards) the power switch on the front panel of the PS19 DC.
11. Repeat
through
step 1
12. Skip to
page 3-9, Common Control
DC).
for each Coral cage in the system.
step 10
Test.
Initial Powerup Tests
3-3
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Table of Contents
Troubleshooting
