Veikong VFD500 Series User Manual page 131

VFD500 high performance vector control frequency inverter user manual
Fault
Fault Name
code
Encoder
22
offline
Motor
25
over-speed
Too large
speed 26
deviation
Motor
auto-tuning 27
fault 1
Motor
auto-tuning 28
fault 3
Off load 31
EEPROM
read- write 32
fault
Running
33
time arrival
485Commu
nication 34
fault
Possible Causes
Display
1. Motor locked
Er.PGL
2. Encoder pulse setting wrong
3. Encoder offline
1: The encoder parameters are set
incorrectly.
Er. oS 2: The motor auto-tuning is not
performed.
3: The over-speed detection
parameters are set incorrectly
1: The encoder parameters are set
incorrectly.
2: The motor auto-tuning is not
Er.DEV
performed.
3: The detection parameters of too
large speed deviation are set
incorrectly.
1: The motor parameters are not
set
Er.tU1
according to the nameplate.
2: The motor auto-tuning times out.
1: The motor parameters are not
set
Er.tU3
according to the nameplate.
2: The motor auto-tuning times
out.
1、The frequency inverter running
Er. LL
current is lower than the setting
value.
1、 Eeprom Operate too frequent
Er.EEP
2、 The EEPROM chip is
damaged.
Er.TTA
Inverter trial time arrival
1, The work of the host computer is
not normal
Er.485 2, The communication line is not
normal
3, The communication parameter
set is incorrect
Chapter6 Fault diagnosis and solutions
1 check motor and mechanical
condition
2 set correct parameter for
encoder
3 check encoder connecting line
1: Set the encoder parameters
properly.
2: Perform the motor auto-tuning.
3: Set the over-speed detection
parameter correctly based on the
actual situation.
1: Set the encoder parameters
properly.
2: Perform the motor auto-tuning.
3: Set the detection parameters
correctly based on the actual
situation.
1: Set the motor parameters
according to the name plate
properly.
2: Check the cable connecting
between the Frequency inverter
and the motor.
1: Set the motor parameters
according to the name plate
properly.
2: Check the cable connecting
between the Frequency inverter
and themotor.
1、Confirm whether the load is
off
2、Check that the load is
disconnected or the parameter
setting is correct
1、 Operate Eeprom suitable
2、 Replace the main control
1:Contact agent or distributor
1. Check the connection of upper
computer
2. Check the communication
connection line
3. Set communication
parameters correctly
- 129-
Solutions
board