Danfoss VFD500 Series Manual page 119

VFD500 high performance vector control frequency inverter user manual
Fault Name
Encoder offline
Motor
over-speed
Too large
speed
deviation
Motor
auto-tuning
fault 1
Motor
auto-tuning
fault 3
Off load
EEPROM
read- write
fault
Running time
arrival
485Communica
tion fault
Faul
Disp
t
lay
cod
e
1. Motor locked
Er.P
2. Encoder pulse setting wrong
22 GL
3. Encoder offline
1: The encoder parameters are
setincorrectly.
Er. 2: The motor auto-tuning is
25 oS notperformed.
3: The over-speed
detectionparameters are set
incorrectly
1: The encoder parameters are
setincorrectly.
Er.D 2: The motor auto-tuning is
EV notperformed.
26
3: The detection parameters of
toolarge speed deviation are
setincorrectly.
1: The motor parameters are not
set
Er.t
27 according to the nameplate.
U1
2: The motor auto-tuning times
out.
1: The motor parameters are not
Er.t
set
28
U3
according to the nameplate.
2: The motor auto-tuning times
out.
Er. 1、The frequency inverter
31 LL running currentis lower than the
setting value.
1. Eeprom Operate too
Er.E
frequent
32
EP
2. The EEPROM chip is
damaged.
Er.T
33 Inverter trial time arrival
TA
1, The work of the host computer
is not normal
Er.
2, The communication line is not
34 485
normal
3, The communication parameter
set is incorrect
Chapter6 Fault diagnosis and solutions
Possible Causes
116
Solutions
1 check motor and
mechanical condition
2 set correct parameter for
encoder
3 check encoder
connecting line
1: Set the encoder
parametersproperly.
2: Perform the motor
auto-tuning.
3: Set the over-speed
detection
parameter correctly
based on the actual
1: Set the encoder
parameters
properly.
2: Perform the motor
auto-tuning.
3: Set the detection
parameters
correctly based on the
1: Set the motor
parameters according to
the nameplateproperly.
2: Check the cable
connecting between the
Frequency inverter and
themotor.
1: Set the motor
parametersaccording to
the nameplateproperly.
2: Check the cable
connecting between the
Frequency inverter and
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 board
1:Contact agent or
distributor
1. Check the connection
of upper computer
2. Check the
communication
connection line
3. Set communication
parameters correctly