Axpert MKS-4000/KS-5000 Service manual
6
2. Functional block
Axpert MKS 4KVA-5KVA series production employ a double conversion topology, comprise following
functional blocks, as shown in figure 2.1.
MPPT Solar Charge
Controller
DC/AC Inverter
AC/DC Rectifier
DC/DC Converter
Charger
DC Fuse
Input Breaker
Thermal Switch Protection
t
o
NTC Sensor
t
o
NTC Sensor
Reverse Polarity Protection
Safety Relay
Load Detection
PV+
PV-
L
I/P
N
I/P
L
O/P
N
O/P
B
Battery -
Inverter Relay
Output Relay
Isolation
t
o
NTC Sensor
Figure 2.1 function block diagram
