powertronics PT-3000, User Manual

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4.2 System working diagram
4.3 Instructions for Solar Power Input
Use the correct size of PV cable, make sure the solar power voltage and
wattage are in range of unit allowance. Wire solar to the "
⑪
--
Solar input
terminals" . Make sure the positive (+) and negative (-) of the solar are wired
correctly. Wrong polarity may cause the unit damage. Turn on the
“
⑥
--
Solar Input
Breaker”
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4.4 Instructions for Connecting Expansion Battery
The external battery’s voltage must be consistent with the unit’s internal
battery voltage:
51.2 V. Make sure the positive (+) and negative (-) terminals
are wired correctly. Reversing polarity may damage the unit.
4.5 Instructions for AC Input
The unit has 2 ways for AC input wiring,
“ ④ -
AC Input Socket
” and “
⑫
-
AC
input
terminals”
. Please check below for details.
-13-
WARNING!!! VERY IMPORTANT!!!
DO NOT connect
“
AC Input Socke
t” and “
AC input
terminals” at same time! It may cause a short circuit and
damage the unit.
“
AC Input Socke
t” and “
AC input terminals
” are
designed as an either-or and are for different purposes of use.