Danfoss VFD500-090G/110PT4 User Manual

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

Danfoss VFD500-090G/110PT4 Specifications

General

Brand	Danfoss
Model	VFD500-090G/110PT4
Category	DC Drives
Language	English