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Idiomas disponibles
Idiomas disponibles
CODE
NAME
PHF
Input phase loss
SCF 5
Load short circuit
SLF 1
Modbus
communication
SLF 2
SoMove
communication
SLF 3
HMI communication
ULF
Process underload
fault
tJF
IGBT overheat
If the troubleshooting section does not resolve your problem, contact Uline Customer Service at 1-800-295-5510.
PAGE 11 OF 51
FREQUENCY DRIVE CONTINUED
POSSIBLE CAUSES
• Drive incorrectly supplied or a fuse blown
• Failure of one phase
• 3-phase ATV12 used on a single-phase line supply
• Unbalanced load
• This protection only operates with the drive on load
• Short circuit at drive output
• Short circuit detection at the run order or DC
injection order if parameter IGBT test
YES
to
• Interruption in communication on the Modbus
network
• Fault communicating with SoMove
• Fault communicating with the external display
terminal
• Process underload
• Motor current below the application underload
LUL
threshold
parameter during a perid set
by application underload time delay
parameter to protect the application
• Drive overheated
• IGBT internal temperature is too high according
to ambient temperature and load
REMEDY
• Check the power connection and the fuses
• Use a 3-phase line supply
• Disable the fault by setting Input Phase loss
detection
• Check the cables connecting the drive to the
motor, and the motor's insulation
Strt
is set
• Check the connections of communication bus
• Check the time-out (Modbus time out
parameter)
• Refer to the Modbus user manual
• Check the SoMove connection cable
• Check the time-out
• Check the terminal connection
• Check the process and the parameters of the
drive to be in phase
ULt
• Check the size of the load/motor/drive
• Reduce the Switching frequency
• Wait for the drive to cool before restarting
IPL
nO
=
ttO
SFr
1023 IH-8923
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