SamplexPower SAM Series, Owner'S Manual

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6.1.3 Low Battery voltage protection
This condition is not harmful to the Inverter but could damage the 12V battery. The
Inverter automatically shuts down when input voltage drops to 10.5 ± 0.3V. The Yellow LED
"INPUT fAULT
" (6, Fig 3.1) will be lighted an the Green LED "
INVerTer
" (8, Fig 3.1) will
switch OFF. The unit will reset automatically when the battery voltage rises to 11.7 ± 0.3V.
6.1.4 over voltage protection
The Inverter will automatically shut down when the input voltage exceeds 15.5 V± 0.2V.
The Yellow LED "
INPUT fAULT
" (6, Fig 3.1) will be lighted and the Green LED "
INVerTer"
(8, Fig 3.1) will be switched OFF. The unit will reset automatically when voltage drops to
15.0V. Input voltage exceeding 16 volts could damage the inverter.
6.1.5 overload / Short circuit protection
The Inverter will automatically shut down under (i) short circuit and (ii) continuous over
-
load of 110% (1650W). Red LED "
fAULT
" (9, Fig 3.1) will be lighted and Green LED "
IN-
VerTer
" (8, Fig 3.1) will be ON. The unit will latch in shut down condition. To reset, switch
off the inverter oN/off
Switch (3, Fig 3.1), wait for 3 minutes and switch
oN again.
i
info
Some high capacitive loads like compact fluorescent Lamp (cfL) or Switched
mode power Supply (SmpS) will draw very high inrush current due to very fast
voltage rise of the square wave nature of the modified Sine Wave and shut
down the inverter. try using a small resistive load in parallel to reduce high
inrush current to prevent overloading.
6.1.6 Low input voltage alarm
An alarm will sound when the voltage at the input terminals of the Inverter drops to
10.8V ± 0.3V. This is an indication that either the battery terminal voltage has dropped
due to its discharged condition and needs to be re-charged or there is an excessive volt
-
age drop across the cables connecting the Inverter to the battery (due to use of thinner
and longer length of cables that will produce higher voltage drop at higher loads or
due to loose connections). The user should stop operation of the electronic device at this
time since the Inverter will shut down automatically shortly thereafter, when the input
voltage at the Inverter further drops to 10.5V ± 0.3V.
i
info
it is normal for the alarm to sound while the unit is being connected to or
disconnected from the power source. this is not indicative of a problem.
6.1.7 Ground fault protection - General
Due to loss of insulation as a result of aging of insulating materials, accident or malfunc-
tion, voltage source inside an electrical device can come into contact with its metal chassis.
If the energized metal chassis is touched by a person standing on Earth Ground (consid
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SeCTIOn 6 | Protections, Monitoring
& Troubleshooting