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22
WhisperPower Inverter / Battery Charger
Exploring the Unit Settings
a) Inverter and Charger Functions
INT
CHG
ABU
ON
ABU
ON
ABU
OFF
ABU
OFF
MBU
ON
MBU
ON
MBU
OFF
MBU
OFF
OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
OFF
ON
OFF
b) Load Sense Function
Load Sense Mode
This Load Sense function is only effective when the unit is running as inverter (Battery power) mode.
'Off': Unit provides continuous AC Output power all the time.
10: Load Sense power setting is set to 10W. Unit will provide continuous AC Output only when the AC
load connected to the AC Output is >10W. AC Output will switch back to pulsing AC Output every
few seconds when the AC Load connected is approximately 3W or less.
• The Load Sense Power rating is available at power levels of 10W, 15W, 20W and 25W.
• This setting is designed to reduce battery power when the unit is running as inverter and the AC Load demand is small.
• Under this setting the GFCI tripping detection error code (E13) does not work, and a tripped GFCI cannot be reset when
the function is in operation. See more details in "Reset the GFCI outlet" in section 4.
AC INPUT
AC OUT
ON
Bypass
OFF
Backup
ON
Bypass
OFF
Backup
ON
Bypass
OFF
-
ON
Bypass
OFF
-
ON
Bypass
OFF
-
ON
Bypass
OFF
-
ON
Backup
OFF
Backup
ON
Backup
OFF
Backup
CHARGE
FUNCTIONING
Y
Auto Backup
-
N
-
Y
Manual Backup
-
N
-
Y
Transfer Switch
-
N
-
N
On-Line UPS
N
N
N
COMMENT
Commonly used
default setting
For external
charger
Requires user
intervention
User intervention
with external
charger
Battery charger
only
Bypass only
Inverter only
(charger
disabled)
Inverter only
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