MENU SYSTEM
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
47
Set Absorption
time h:m 02:00
All models
Range: 00:00 to 23:50
Sets the time period that the batteries will be held near the SET BULK VOLTS DC level for the second
stage of the battery charging process, this ensures that the battery is well charged. If the automatic
generator start system is used, the generator will turn off when the batteries have been held near the SET
BULK VOLTS DC setting until the ABSORPTION TIME period has elapsed. This time is an accumulating
or up/down type timer - it counts up while the voltage is near the BULK setting and counts back down if
the voltage drops below the FLOAT setting. This makes the process more reliable and predictable. If the
system designer wants to minimize generator operation, a shorter time may be used. If the system
designer wants to ensure that the batteries are fully charged before stopping the charging process, then a
longer setting may be used. If the ABSORPTION TIME is set to zero (00:00) the unit will not provide any
absorption charge time and go straight to the float charge stage after reaching near the BULK voltage
setting.
Set Float
volts DC 13.4
12 VDC models
Range: 10.0 to 16.0
Set Float
volts DC 26.8
24 VDC models
Range: 20.0 to 32.0
Sets the voltage level that will be maintained at the final stage of the charging process. This is important
for systems which are connected to utility power since the battery charger will often be in this stage most
of the time. This setting will be compensated for the battery temperature if the BTS sensor is installed.
Set Equalize
volts DC 14.4
12 VDC models
Range: 10.0 to 16.0
Set Equalize
volts DC 28.8
24 VDC models
Range: 20.0 to 32.0
Sets the voltage level that the batteries will be held during the equalization process. This will be the
maximum voltage at which the batteries will be charged. This setting will be compensated for the battery
temperature if the BTS temperature sensor is installed.
Set Equalize
time h:m 02:00
All models
Range: 00:00 to 23:50
Sets the amount of time the battery voltage will be held near the SET EQ VOLTS DC level before the
equalization process is considered to be completed. If the automatic generator start system is used; it will
turn off the generator when this timer has reached its setting, and return the cursor from the EQ to the
AUTO position.
Set Max Charge
amps AC 20
Standard models
Range: 01 to 25
Set Max Charge
amps AC 10.0
“E” models
Range: 00.5 to 10.5
Sets the maximum amount of AC input current that the battery charger will use to charge the battery. This
can be used to limit the charger output as well. The charger will “back-off” if the combination of AC loads
and the charger reaches the AMPS AC setting of the AC INPUT connected (determined by the
‘MAXIMUM AC AMPS IN’ switch position) to prevent overloading the source or tripping breakers. This
process occurs automatically. Note: The default setting will vary between models with different
continuous power ratings.
Set Temp Comp
LeadAcid NiCad
All models
Select: LeadAcid or NiCad
Allows selection of the battery type for the battery temperature compensation system. This effectively
reduces the battery charging set points when the battery is hot and increases them when the battery is
cold. This will only occur if the battery temperature sensor (BTS) is installed. The setting should be
changed from the default setting only if NiCad or Alkaline “type” batteries are used.
Read Bulk/EQ
timer h:m 00:00
All models
Range: 00:00 to 23:59
This display shows how long the charger has been in the absorption or equalization period. Once the
voltage has reached just below the BULK (or EQ) voltage, the timer starts and counts up to the SET
ABSORPTION TIME (or SET EQUALIZE TIME) at which time the float charge cycle will begin. This timer
is an accumulating or up/down type timer - it counts up while the voltage is near the BULK (EQ) setting
and counts back down if the voltage drops below the FLOAT VOLTS DC setting for a period of time.
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