External Power Mode (Lpc Only) - Sensata Dimensions 12LP15 Owner's Manual

External Power Mode (LPC only)

Bypass Relay: The loads attached to the inverter output will operate directly from the
external AC power line independently of the inverter ON/OFF status. If the inverter is
left ON (standby mode), the built-in bypass relay will automatically cycle back and forth
between "Inverter Power" mode and "External Power" mode depending on the
availability of the external AC power line.
Note: If the AC load is short-circuited while in bypass mode, the inverter/charger may
experience an internal fault.
Battery Charger: The battery charger will engage automatically and independently of
the inverter ON/OFF status. The 3-step charging process modes are; Constant Current
(Bulk), Constant Voltage (Acceptance), and Float. There are three additional states the
charger may enter: Load Management, Equalization, and Monitor
The LED Display Panel will show charger mode and the Status LED located on the side
of the inverter will blink Green to indicate the charging process mode (1 blink =
Constant Current, 2 blinks = Constant Voltage, 3 blinks = Float). See the LED blink
code chart for additional blink codes.
Constant Current (Bulk):
The charger will output the maximum rated current to the battery until the battery
voltage (as measured at the charger DC terminals) reaches the maximum voltage
threshold or the Constant Current timer expires.
Constant Voltage (Acceptance):
The charger will output at the rated voltage until the output current reaches nearly zero
or the Constant Voltage time expires.
Float:
The charger will output current and voltage at the minimum duty cycle until the voltage
drops below a threshold.
Load Management:
Incoming AC power is shared between the AC loads and the charger. The AC loads are
given priority; this means the charger will reduce its output with large AC loads. This
feature controls the total amperage draw of the system so the utility service circuit
breaker is not tripped. The Load Management feature will return the charger to full
output when the AC loads are removed or reduced.
INPUT CURRENT
Figure 11 - Load Management
BYPASS CURRENT
BCR SETTING
0 – 20A. SET BY
CAN, OR DEFAULT
VALUE
CURRENT TO CHARGER
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122221 12LPC15 Manual Rev A.docx