PSW-H Installation and User Manual
www.phocos.com    29  | P a g e    
source can only charge the 
battery if in Grid, Stand-By or 
Fault modes. In Off-grid mode 
only solar / PV power can 
charge the battery. 
Solar and Utility (Default) 
Solar power and AC input power 
will charge battery at the same 
time if the unit is in Grid mode. 
While the AC output and PV are 
active, grid charging is temporarily 
disabled until either PV becomes 
unavailable or the AC output is no 
longer active. 
Only Solar 
Solar power will be the only battery 
charging source regardless of the 
operating mode. 
18 
General alarm control 
Alarm on (Default) 
Alarm off 
19 
Automatic return to default 
overview display screen 
Return to default display view 
(Default) 
The display will return to the 
default overview (input voltage / 
output voltage) if no button is 
pressed for approx. 1 minute. 
Remain at last view 
The display will remain at the 
selected view indefinitely, until 
another view is selected. 
20 
Display backlight control 
Backlight always on (Default) 
Backlight off after one minute of no 
button presses 
22 
Beeps while primary source is 
interrupted 
Alarm on (Default) 
Alarm off 
23 
Overload by-pass: 
When enabled, the unit will 
quickly switch to Grid mode if 
an AC output overload occurs 
in Off-Grid mode. It will return 
back to Off-Grid mode once 
the load power has 
normalized. 
By-pass disabled (Default) 
By-pass enabled 
25 
Record fault codes to internal 
datalogger 
Record enabled (Default) 
Record disabled 










