21
/
24
c) The water pump is under restart delay status.
Check focus and countermeasures:
a) Check the water level of water storage device to see if water overflows.
b) The parameters shall be set again: “U XX” shall be made to be in consistency with
the type of the overflow level sensor applied.
c) Alternatively, resetting shall be made by pressing up/down key on the panel at the
same time to cancel the restarting delay or wait the delay time set.
7.3 This Inverter will not start automatically if the sunlight is good.
Cause:
a) This Inverter is not under automatic working mode.
b) The starting voltage is set too high.
c) Failing to connect optical sensor or short circuit terminal PR1 and PR2.
Check focus and countermeasures:
a) This Inverter is under automatic working mode.
b) By reducing the value of the starting voltage.
c) By connecting optical sensor or short circuiting terminal PR1 and PR2.
7.4 This Inverter is started when the sunlight is good and output is available but the
water pump does not operate.
Phenomenon:
This Inverter is started when the sunlight is good but the water pump does not
operate.
Cause:
a) The photovoltaic battery array does not point to the sun and the output power of it
is insufficient.
b) Fault happens to the connection of photovoltaic battery array, one or several
groups of photovoltaic battery array have no output and the output power of
photovoltaic battery array is insufficient.
Check focus and countermeasures:
