Mastervolt SCM20 PWM, Руководство по установке, Страница: 8 / 16

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EN / SCM20 & SCM40 PWM User’s Manual
2.6.1 Low voltage disconnect function
There are two ways to protect the battery from too deep
discharges:

Static: the Load output switches off if the battery
voltage drops below the Disconnect threshold voltage.

Dynamic: the Load output switches off depending on
both battery voltage and load current.
The Load output switches on again if the battery voltage
rises above the Reconnect threshold value.
The Low voltage disconnect function can only be used if
the load is connected to the Load output (see section 3.5)
Static Low voltage disconnect function:
Indication Disconnect
threshold Reconnect
threshold
10.8 / 21.6 10.8V / 21.6V 11.6 V / 23.2V
10.9 / 21.8 10.9V / 21.8V 11.7 V / 23.4V
11.0 / 22.0 11.0V / 22.0V 11.8 V / 23.6V
11.1 / 22.2 11.1V / 22.2V 11.9 V / 23.8V
11.2 / 22.4 11.2V / 22.4V 12.0 V / 24.0V
11.3 / 22.6 11.3V / 22.6V 12.1 V / 24.2V
11.4 / 22.8 11.4V / 22.8V 12.2 V / 24.4V
11.5 / 23.0 11.5V / 23.0V 12.3 V / 24.6V
11.6 / 23.2 11.6V / 23.2V 12.4 V / 24.8V
11.7 / 23.4 11.7V / 23.4V 12.5 V / 25.0V
11.8 / 23.6 11.8V / 23.6V 12.6 V / 25.2V
Dynamic Low voltage disconnect function:
Indication Disconnect threshold Reconnect
threshold
at full load at no load
11.0V
22.0V 11.6V
23.2V 12.4 V
24.8V
11.1V
22.2V 11.6V
23.2V 12.5 V
25.0V
11.2V
22.4V 11.6V
23.2V 12.6 V
25.2V
11.4V
22.8V 11.6V
23.2V 12.7 V
25.4V
11.6V
23.2V 11.6V
23.2V 12.8 V
25.6V
2.6.2 Battery type
Indication Battery type
Gel
Flooded (liquid)
AGM
2.6.3 Load mode
Indication Load mode
Always on Mode: the load output
is always switched on
Dusk to Dawn Mode: the load
output is switched on between
sunset and sunrise.
PV input threshold voltage:
5.0/10.0V
Evening Mode: The load output
will be switched on for 2~9 hours
after sunset.
Manual Mode. The load output
can be switched on and off
manually by pressing
MENU
shortly.
NOTES:

You can test the operation of the Load output manually
by holding
MENU
pressed for 3 seconds. Press
MENU
again to switch off the load again or the load will switch
off automatically after 1 minute.

If the Manual Load Mode is selected (“USE”), you can
switch on and off the Load output manually by pressing
MENU
shortly. In this case the protections against fault
conditions for overload, short circuit, overheating or
under and over voltage will be ignored!