© 2016 Sensata Technologies
Page 53
Operation
3.8 Factory Default Values
Your MS Series inverter/charger uses default values for the adjustable settings (Table 3-2) that
are adequate for most installations. If some of your operating parameters need to be changed
from the default values, an optional remote control can be used to make those changes. To help
you determine if you need a remote display, information on the inverter/charger settings that
can be changed is provided below. The settings, once programmed, are saved in the remote’s
non-volatile memory and are preserved until changed—even if DC power to the inverter is lost (as
long as the remote is connected). For information on the full range of settings for each function
in your remote, refer to its owner’s manual at
www.SensataPower.com
.
• Shore Max/Input Amps:
This setting ensures the inverter AC loads receive the maximum
current available from the utility or generator. When the total current used to power the
AC loads and charge the batteries begins to approach the
Shore Max/Input Amps
setting,
the current that was used for charging the batteries will automatically be reduced.
• Search
Watts:
This setting allows you to turn off the power-saving Search mode circuitry,
or to adjust the power level at which the inverter will “wake up” and start inverting.
• LowBattCutOut:
This setting determines when the inverter will turn off based on low
battery voltage. The inverter turns off automatically after the battery voltage has been
below this setting for more than one minute. This protects the batteries from over-
discharge and the AC loads from unregulated power (brown-outs).
• Batt
AmpHrs/Absorption
Time:
This setting allows the user to input the battery bank
size in amp hours or to set the absorption time—which tells the charger how long to
charge the batteries in the Absorb Charge stage.
• Battery
Type:
Sets the type of batteries being used in the system. This information tells
the charger what voltage level to use to charge the batteries.
• Charge
Rate:
This setting can be used to turn off the charger, limit the amount of current
that the charger can use (leaving more current available to power loads), or to ensure
small battery banks are not overheated because of a charge rate that is too high.
• VAC
Dropout:
Sets the minimum AC voltage that must be present on the AC input before
the unit transfers from Standby mode to Inverter mode. This protects the AC loads from
utility outages and brown-outs.
Using a remote display also provides the following features: allows you control to enable an equalize
charge for certain battery types, displays inverter/charger’s operating status, and provides fault
information for troubleshooting.
Table 3-2, Inverter/Charger Default Values*
Adjustable Settings
Default Values
Shore Max/Input Amps
30 Amps
Search Watts
5 Watts
LowBattCutOut
12v = 10 VDC (one min. delay), 8.5 VDC (no delay)
24v = 20 VDC (one min. delay), 17.0 VDC (no delay)
48v = 40 VDC (one min. delay), 34.0 VDC (no delay)
Batt AmpHrs/Absorption Time
600 AmpHrs (Absorb Time = 120 minutes)
Battery Type
Flooded – Liquid Lead Acid:
12V = Absorb 14.6 VDC, Float 13.4 VDC;
24V = Absorb 29.2 VDC, Float 26.8 VDC
48v = Absorb 58.4 VDC, Float 53.6 VDC
Charge Rate
100%
VAC Dropout
80 VAC
*
These default values are without a remote connected. If a remote is connected, the remote
settings are saved in the inverter—even if the remote is disconnected—until all power to the
inverter is removed.
