Power Switch; Protections - Ultimate Power UP12/2000SD-CG User Manual

Ultimate Power

3.5 Power Switch

There are three different working statuses
for SD inverter: "On", "Off" and "Ready".
When power switch is in "Off" position, the
inverter is powered off.
When power switch is turned to "ON", the
inverter is powered on.
When power switch is turned to "Ready",
the inverter will charge the battery when
there is qualified AC input. If there is no AC
power input, the inverter waits for 12Vdc remote start signal to go into inverter mode. Once the
12Vdc remote start is activated, the inverter powers on. When the 12Vdc remote start is de-activated,
the inverter goes to "Ready" mode again.
Model Type
UP12/2000SD-CG
UP12/2500SD-CG
UP12/3000SD-CG
When in the search sense mode, the green power LED will blink and the inverter will make a ticking
sound. At full output voltage, the green power LED will light steadily and the inverter will make a
steady humming sound. When the inverter is used as an "uninterruptible" power supply the search
sense mode function should be defeated.

3.6 Protections

The SD Series inverter is equipped with extensive protections against various harsh situations/faults.
These protections include:
AC Input over voltage protection/AC Input low voltage protection
Low battery alarm/High battery alarm
Over temperature protection/Over load protection
Short Circuit protection (1s after fault)
Back feeding protection
When Over temperature /Over load occur, after the fault is cleared, the master switch has to be reset
to restart the inverter. The inverter will go to over temp protection when the heat sinks temp. ≥105ºC
(221℉), and will go to Fault (shutdown Output) after 30 seconds. The switch has to be reset to
activate the inverter. The SD Series Inverter is with back feeding protection which avoids presenting
an AC voltage on the AC input terminal in Invert mode. After the reason for fault is cleared, the
inverter has to be reset to start working.
SD Series Idle Power Consumption
On Mode
Idle Power Quiescent Current
30W
37.5W
45W
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Ready Mode
2.2A
3A
3.8A
15W
15W
15W