Encoder Communication Error; Power Unit Code; Power Unit Code Changed; Error Current Check - KEB COMBIVERT F5 Instruction Manual

Error Messages
Display
Encoder
communication
error
Power unit code
Power unit code
changed
Error current
check
External Fault
Encoder card
invalid
122
Description
This indicates that there is a
problem either with the serial
communication between the drive
and the encoder or the encoder
signals. The full meaning of this
error must be decoded through
parameter 2.LF.26.
Error Power Unit Code. During the
initialization phase the
power stage was not identified
Error Power Unit Code Changed.
Indicates the power unit code
has changed. This is typically
experienced when exchanging
control cards.
Error current check. Prior to every
run the drive sends current to each
phase of the motor to verify the
connection. Afterward, the drive
applies magnetizing current and
monitors whether the motor is
magnetized or not.
This error indicates a fault was
triggerd from the option input
X2A.10.
This error indicates the feedback
card has an invalid identification
code.
Cause and Solution
• See parameter 2.LF.26 for fault diagnostics
• This error does not reset with the RST
input or the auto reset function. To clear
this error go to parameter 0.LF.26, press
function to show the value and then press
enter.
• Hardware failure replace the elevator drive
• The unit will automatically configure itself for
the new power stage and clear the error.
• The drive will keep a history of all changes for
future reference.
• To manually clear this error, go to parameter
US.27, press "function" and then "enter" and
the error should clear.
• One or more motor leads is not connected.
• Motor contactor is not closing or not closing in
time - verify switching time of contactor
• Motor contactor contacts are burnt or dam-
aged - Inspect contactor
• Motor windings are damaged. Measure motor
resistance.
• Drive is not able to generate acceptable cur-
rent levels - after checking everything above it
the problem could be drive related.
• The phase current check can be bypassed by
setting US.25 = 1
• This is used to trigger an external fault in case
of excessive speed deviation. See. LF.57 for
details.
• The card was most likely damage. Replace the
feedback card.