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VP-1405A Advanced Power
V-PM1000 Series, Veesta Power Module Product Series
48V Power Supply & Charger Instructions & User's Manual
220VAC
Input
L
1
FG
2
N
3
Isolation
Barrier
A+ (D+)
B- (D-)
A+ (D+)
B- (D-)
RJ-45
Isolated
Connector
RS485
Modbus RTU
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When the load requires a large inrush current and exceeds the
maximum current supplied by the power supply, the power supply will
be protected and turned off by itself. Then the load current is
completely provided by the battery. When the load current is less
than the maximum current supplied by the power supply, the power
supply automatically starts working.
For more information please see the internal circuit of VP-1405A on
the bellow picture:
Key Function
Status Display
Volt & Current
Adjustment
System Monitoring
and Supervisory
Alarm Outputs
Alarm: 1
2
3
4
Figure 2-1: VP-1405A Design Principal
Chapter 2 - System Overview
P
o
w
e
r
P
o
w
e
r
C
C
o
o
n
n
v
v
e
e
r
r
s
s
i
i
o
o
n
n
Centralized
Processing
Controller
Battery
Activation
Input/Output
Management
19, 20
C1 C2 C3
Battery Pack
17, 18
15, 16
48V System
Battery
Protection
21, 22
-
+
48V
Page 13 of 46
VO+
VO-
LOAD
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