HBD PV500-0007M1 User Manual page 66

PV500 series solar pumping inverters
Fault
Fault type
code
OH2
IGBT overheat
EF
External fault
CE
Communication
error
ItE
Current detection
fault
tE
Autotuning fault
EEP
EEPROM fault
PIDE
PID feedback fault 1. PID feedback is offline.
Possible cause
2. Ambient temperature is too
high.
3. The time of overload
running is too long.
SI external fault input
terminals action
1. The baud rate setting is
incorrect.
2. Fault occurs to the
communication wiring.
3. The communication
address is wrong.
4. There is strong interference
to the communication.
1. The connection of the
control board is not good.
2. Assistant power is bad
3. Hall components is broken
4. The magnifying circuit is
abnormal.
1. The motor capacity does
not comply with the inverter
capability.
2. The rated parameter of the
motor is not set correctly.
3. The offset between the
parameters from autotune
and the standard parameter is
huge
4. Autotune overtime
1. Error of controlling the write
and read of the parameters
2. Damage to EEPROM
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Fault diagnosis and solution
Solutions
change the fan.
2. Decrease the environment
temperature.
Check the external device input.
1. Set proper baud rate.
2. Check the communication
connection distribution
3. Set proper communication
address.
4. Change or replace the
connection distribution or
improve the anti-interference
capability.
1. Check the connector and
repatch.
2. Change the Hall.
3. Change the main control
panel.
1. Change the inverter mode.
2. Set the rated parameter
according to the motor name
plate.
3. Empty the motor load.
4. Check the motor connection
and set the parameter.
5. Check if the upper limit
frequency is above 2/3 of the
rated frequency.
1. Press STOP/RST to reset.
2. Change the main control
panel.
1. Check the PID feedback
signal