OPERATION
Copyright Trace Engineering Company, Inc.
5916 - 195th Street N.E.
Arlington, WA 98223
Telephone: 360/435-8826
Fax: 360/435-2229
www.traceengineering.com
PS Series Inverter/Charger
Part No. 3597
Rev. D: November 23, 1999
Page
67
A manual or automatically controlled equalization charge process is available in the PS Series
Inverter/Charger. This equalization process can be powered by any AC source. Using the SWRC, the
SET EQUALIZE TIME H: M menu item under the BATTERY CHARGING (10) menu heading sets the
amount of time that the battery voltage must exceed the SET BULK VOLTS DC setting before the
equalization process is considered to be completed. This timer is an accumulating type timer that does
not reset if the voltage drops momentarily below the bulk voltage setting. During the equalization process,
the voltage will be limited to the level of the SET EQUALIZE VOLTS DC menu item under the BATTERY
CHARGING (10) menu heading.
During the equalization process, the BULK LED on the SWRC will flash slowly to indicate that the EQ
position has been selected from the SET GENERATOR menu item.
To start the equalization process (either manually or automatically), you must first select EQ from the SET
GENERATOR menu item, accessible by pressing the green GEN MENU button on the SWRC.
To manually equalize your batteries, supply AC power to the AC HOT INPUT and AC NEUTRAL INPUT
terminals with utility power or power from a manually started generator. The inverter will use this power to
start the battery charger and begin the equalization process. The FLOAT LED on the SWRC will come on
to indicate that the equalization process has finished (if the generator or utility power is still available).
Turning on the generator manually will require you to manually shut the generator off when it has
finished equalizing. You must return the cursor to the OFF position in the SET GENERATOR menu item
(accessible by pressing the green GEN MENU button on the SWRC) once the equalization period has
been completed.
If the automatic generator start system is connected (‘MAXIMUM AC AMPS IN’ switch must be set to
AC2 position), the inverter can be set to complete an equalization charge process during the next -
automatically started - generator run period. When the generator is automatically started, the equalization
process will begin, and once the equalization period has been completed, the generator will automatically
stop and display with the SWRC that the cursor has returned to the AUTO position in the SET
GENERATOR menu item.
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