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Warning
Code Description
Code
Over
Over Voltage
Voltage
Low
Under Voltage
Voltage
Over Current
Over
Current
Over Voltage
Overload
Over current of
IPM Prot
internal module
Boost Circuit Error Device or circuit damaged
Boosterr
Loss of load
LossLoad
protection
Communication
Para Err
Error
Output short circuit
P to E
to ground
Over temperature
Too hot
of module
U phase CT fault
CT U Err
W phase CT fault
CT W Err
DC CT fault
CT D Err
Output U phase
U Lose
Lose phase
Output V phase
V Lose
Lose phase
Output W phase
W Lose
Lose phase
Date Err
Date error
Possible Reason
High input voltage
Low input voltage
Weak sunlight intensity
Large pump load
Low solar array voltage
Long pump cable
Poor motor insulation
Large pump load
O u t p u t s h o r t c i r c u i t o r
grounded
Module damaged
Pump dry running
Pump cables all disconnected
Inverter selection does not
match the pump
Device or circuit damaged
Output cable damaged
Pump motor insulation
damaged
Air duct blocked
Too high temperature
Device or circuit damaged
Device or circuit damaged
Device or circuit damaged
U phase cable disconnected
Device or circuit damaged
V phase cable disconnected
Device or circuit damaged
W phase cable disconnected
Device or circuit damaged
Wrong time setting
Device or circuit damaged
6 27
Counter Measures
Inspect solar array voltage
Inspect solar array voltage. Incase it is
sunny and yet warning code persists,
increase Pr.1 slightly to not more than
0.9.
Change to low-power pump load
Inspect solar array voltage
Reduce the cable length between
inverter and motor
Inspect pump motor
Reduce operation frequency
Inspect the wiring
Contact D&S Retailer
Contact D&S Retailer
Inspect water level
Inspect pump cable connections
Inspect if the pump power matches
inverter capacity
Reset
Contact D&S Retailer
Inspect cable connections
Inspect pump motor
Clear the air duct or improve the
ventilation condition
Contact D&S Retailer
Contact D&S Retailer
Contact D&S Retailer
Inspect pump cable connection
Contact D&S Retailer
Inspect pump cable connection
Contact D&S Retailer
Inspect pump cable connection
Contact D&S Retailer
Check Pr.9~Pr.10 values about time
setting
Contact D&S Retailer
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