Troubleshooting
71
E-41
Analog channel
disconnection
The physical quantity detected by
AI1 or AI2 is not within the
reasonable range, or the circuit of
AI1 or AI2 is in poor contact.
Reasonably control the physical
quantity measured by AI1 or AI2
and check the wiring of AI1 or AI2.
E-42
(A-42)
Low frequency
protection
The light is too weak or the
F12.15, F12.16, F12.17 are
improperly set.
Set parameters according to actual
conditions
E-43
(A-43)
Dry pumping
protection
The load is too small or F12.25,
F12.26, F12.27
Set parameters according to actual
conditions
E-44
(A-44)
Overcurrent protection
Load is too large or overcurrent
protection F12.21, F12.22,
F12.23 is improperly set
Set parameters according to actual
conditions
E-45
(A-45)
Minimum power
protection
The load is too small or the
minimum power protection value
F12.18 is set too large.
Set parameters according to actual
conditions
A-46
Water full warning
Function terminal function No.
71 is invalid, or the function of
70 terminal is always valid.
Check the signal status of terminals
70 and 71;
A-47
Sleep protection
The light is too weak or F12.11,
F12.13, F12.14;
Set parameters according to actual
conditions
A-51
The main and
auxiliary given
frequency channel
exclusiveness alarm
Parameter setting error
F01.00 and F01.03 cannot be set to
the same channel (9: terminal
encoder given except)
A-52
Terminal function
exclusiveness alarm
Terminal function parameters
setting repeatedly
Check the terminal function settings
A-53
Operation limit alarm
Limit run time
Please contact the superior supplier
LOCH1.
Keypad lock
Keypad lock
Press key for more than 2s
to unlock the keypad.
7.2 Failure record lookup
This series inverter can record latest 4 failure code and inverter run parameter of thelast 2
times failure, refer to these information can redound to finding out reason ofthe failure.
Failure information is all stored in F26 group parameter
，
please enter into F26
groupparameter to see about information by referring to keypad operation method.
Code
Content
Code
Content
F26.00
Previous one failure record
F26.09
Input terminal state at previous failure
F26.01
Previous two failure record
F26.10
Running time at previous failure
F26.02
Previous three failure record
F26.11
Set freq. at previous 2 failure
F26.03
Previous four failure record
F26.12
Output freq. at previous 2 failure
F26.04
Set freq. at previous failure
F26.13
Output current at previous 2 failure
F26.05
Output freq. at previous failure
F26.14
DC bus volt. at previous 2 failure
Note
(1) Alarm fault of E-16, the inverter must be power off for reset.
(2) For the faults of over-current, short-circuit to ground while running, inverter can reset
after 2s’s delay
ENC
