5
Power Connection
4.3
Power connectors and fuses
The Remote Status Panel has two screw terminal barrier plug power connectors, located on the left side of the
back panel.
Before you connect a power supply to the Remote Status Panel, test the voltage of your power supply:
·
Connect the black common lead of a voltmeter to the ground terminal of the battery, and connect the red
lead of the voltmeter to the battery's –48 VDC terminal. The voltmeter should read between –43 and –53
VDC. If the reading is outside this range, test the power supply.
To connect the Remote Status Panel to a power supply, follow these steps:
1.
Remove the fuses from the back panel. Do not reinsert the fuse until all power connections have
been made.
2.
To ground the Remote Status Panel, connect a grounding wire to the grounding lug.
3.
Remove the power connector plug from Power Connector A. Note that the plug can be inserted into the
power connector only one way — this ensures that the barrier plug can only be reinserted with the
correct polarity. Note that the –48V terminal is on the left and the GND terminal is on the right.
4.
Insert a battery ground into the power connector plug's right terminal and tighten the screw; then
insert a –48 VDC line to the plug's left terminal and tighten its screw.
5.
Push the power connector plug firmly back into the power connector. If the power feed is connected
correctly, the LED by the connector will light GREEN and the Remote Status Panel will power up. If
the polarity of the power feed is reversed, the LED by the power connector will light RED and the
Remote Status Panel will NOT power up — you won't see any other LEDs light or hear any sounds
from the unit. Reversing the polarity does not harm the unit, but you should immediately remove the
fuse and reconnect the power leads correctly.
6.
Repeat Steps 3–5 for Power Connector B.
7.
Reinsert the fuse to power the Remote Status Panel.
When power up is complete, the front panel Power LED will light GREEN.