Vicruns 2S-0.4G-B, User Manual

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3.2 Set the working mode of the photovoltaic water pump:
There are two working modes for the photovoltaic water pump.
The first one is CVT mode. In this working mode, only two parameters need to be set (F16.00
is set to 1, which is used to select CVT working mode; F16) .01 Set the worki-ng voltage point
of CVT mode. Generally, the inverter with voltage level of 380VAC can set this parameter
between 450 and 540, and the inverter with voltage level of 220VAC can set this parameter
between 250 and 310). In CVT mode, when the light intensity state, that is, the inverter bus
voltage exceeds the voltage value set by F16.01, the inverter will speed up the pump running
speed, otherwise the inverter will reduce the pump running speed.
The second working mode is MPPT working mode. In this working mode, the following
parameters need to be set: F16.00 is set to 2, and the working mode is selected as MPPT
working mode. F16.05 and F16.06 respectively set the upper and lower limits of MPPT mode
voltage search (the two parameters generally use the factory values). When running in MPPT
mode, the inverter will automatically search for the maximum power output point according to
the sunlight intensity to ensure the maximum output power. (Because the sunlight intensity
changes in real time, the process of searching for the maximum power point in this mode is a
relatively slow process. And the maxi-mum output power is not equivalent to the maximum
pump operating frequency.) ** CVT working mode is relatively simple and easy to understand
. It is recommended that customers use the CVT mode for testing.
3.3 Start the inverter
：
The startup mode of the inverter is determined by the parameter P0-01, and the default is to
start the inverter with the panel keys (ie, manually press the RUN key on the inverter panel to
start the inverter). When the site is in the situation that no one needs to run automatically for a
long time, it is recommended that the customer set P0-01 to 1, and use a wire to connect the
S1 terminal and the DCM terminal together. This setting mode will run automatically as soon
as the inverter is powered on.
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3.4 Check the running direction of the water pump ：
run with the pump. The running direction of the pump is related to the wiring sequence of the
three motor wires "U", "V" and "W", so after starting the inverter, you need to check the pump
manually Whether the running direction is correct, if the running direction is wrong, you need
to choose two of the three motor wires "U", "V" and "W" to change the wire sequence.
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Chapter 10 Appendix