INSTALLING THE AT30
16
1.9. WIRING THE AT30 FOR REMOTE SENSING
You can wire the AT30 to regulate the output voltage at the battery
terminals, instead of at the charger output terminals. Remote sensing does
the following:
1. Compensates for voltage drop in the dc wiring between the AT30 and the
battery.
2. Directly monitors the battery or dc bus voltage. The front panel meter
displays the actual voltage on the battery or dc bus.
You wire the AT30 for remote sensing by installing twisted pair cabling
from the AT30 remote sense terminals to the battery terminals. The AT30
control circuitry then measures the dc voltage at the battery terminals, and
controls the output of the charger to maintain the battery voltage at the
desired float or equalize voltage.
NOTE: If the remote sense wiring fails, the AT30 detects the fault, and
displays
E 06
on the front panel meter. See Section 3.2 for details.
CAUTION: The AT30 cannot protect against short circuits in the
remote sense wiring. You should install a 1.0A fuse at the battery or dc
bus end of the remote sense cable.
SCHEMATIC
PROCEDURE
1. De-energize and lock out all ac and dc voltages within the AT30 enclosure.
Check with a voltmeter.
2. Remove safety shield (if supplied).
3. Remove the two (2) dc output CU-AL compression lugs.
4. Move wire #
38
from TB1(-) to REM SENSE(-).
5. Move wire #
40
from TB1(+) to REM SENSE (+).
Summary of Contents for AT30 SERIES
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