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OPERATING AND MAINTENANCE MANUAL
PYD SERIES SOLAR INVERTER
43
FAILURE
DISPLAY
POSSIBLE CAUSES
SOLUTIONS
Parameter
read/write
failure
Err21
EEPROM chip is damaged.
Replace the main control board.
Hardware
failure
Err22
1: There is overvoltage.
2: Overcurrent exists.
1: Handle based on overvoltage.
2: Handle based on overcurrent.
Short-circuit to
earth
Err23
The motor is short-circuited to earth.
Replace the cable or motor.
Cumulative
working time
achieved
Err26
The cumulative running time reaches the
set value.
Delete the register via parameter
A0-09
User defined
fault 1
Err27
1: The signal of user-defined fault 1 is
input via DI.
2: The signal of user-defined fault 1 is
input via virtual I/Os.
1: Restart the operation.
2: Restart the operation.
User defined
fault 2
Err28
1: The user-defined fault 2 signal is input
via DI.
2: The signal of user-defined fault 2 is
input via virtual I/Os.
1: Reinicia la operación.
2: Reinicia la operación.
Cumulative
ignition time
achieved
Err29
The cumulative ignition time reaches the
set value.
Delete the register via parameter
A0-09
Loss of load
Err30
The operating current of the frequency
converter is lower than the set value.
Check that the load is disconnec-
ted or that the parameter settings
are correct.
