Block Diagram - Projecta PMDCS30 Manual

2.2 BLOCK DIAGRAM

Figure 2-1: Block Diagram of DC-DC setup
Alternator
Motor
battery
Voltage detect
The charging efficiency of the PMDCS is up to 96%.
PMDCS units also support communication of RS485.
PMDCS will treat it as conventional engine rather
than Euro 6 engine.
Alternator type
Conventional alternator
D+ wired
Note: If D+ is used and you want to switch to conventional alternator mode, disconnect
D+ and disconnect the PMDCS from the house/auxiliary battery and reconnect. This will
reset the system.
2.3 MULTI STAGE CHARGING ALGORITHM
The charging algorithm is microprocessor-controlled with a variable absorption charging
timer to ensure optimal charging for batteries with varying degrees of discharge.
Figure 2-2: Charging Algorithm
11.5V
Icc
½ Icc
Soft Start
DC/DC
A
Converter
MCU
D+ LED
Alternator input voltage
13.2V with 10 second delay on
12.8V with 60 second delay off OFF
11.7V
11.7V
10 days
Bulk Absorption Float
A
Temperature detect
Voltage detect
DIP
COM
Switch
Working state
ON
ON
OFF
5
1h
mins
Recycle
Transformer
Battery Voltage
Charging Current
3