9
3.3 Solar cell array and AC power supply
Figure 3.3 The solar cell array and the power frequency power supply wiring diagram
The notes below should be considered for the AC debug
Power On Sequencing:
Disconnect Q2 firstly, and then wait at least 5 minuets until controller discharge (or
digital LED and all indicators extinguish ), then close Q1. Otherwise, will cause the
damage of controller.
Notice:
(1) If there is no protection diode connected to the port of input-bus, it is forbidden
to close photovoltaic cell switch (“Q1”) and power grid switch (“Q2”) at the same time.
Otherwise, will cause the damage of solar panels.
(2) When need to transform the power supply mode from power frequency to
Note: if there is no protection
diode connected to the end of
the photovoltaic DC input, it is
forbidden to close the switches
(Q1 and Q2) at the same time,
otherwise, it will damage the
module of photovoltaic cell
Protection diode
Photovoltaic cell
Motor-Pump
p
Attention
：
B503DSL
2001~2003 Wiring
：
The positive pole connect to(+)
，
the negative pole connect to(N)
（
+
）
N
the positive pole the negative pole
4001~4003
Wiring
：
The positive pole connect to(+)
，
the negative pole connect to(R)
（
+
）
R
the positive pole the negative pole
B503DSL
