Encoder Card Change; Encoder Card Invalid; Encoder Communication Error; Power Unit Code - KEB COMBIVERT F5 Instruction Manual

Error Messages
Display
Encoder
Communication
Error

Power Unit Code

Power Unit Code
Changed
Error Current
Check
Encoder Card
Change
Encoder Card
Invalid
92
Description
This indicates that there is a
problem either with the serial
communication between the drive
and the encoder or the value of the
data being transferred. The full
meaning of this error must be
decoded through parameter
US.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 experi-
enced 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 the feedback
card has been changed
This error indicates the feedback
card has an invalid identifica-
tion code.
Cause and Solution
•
Disconnection of the encoder while the power
to the drive is on.
• Absolute position value transferred from
encoder does not match the current value
achieved through the incremental channels.
•
This error does not reset with the RST input
or the auto reset function. To clear this
error go to parameter 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 damaged
- Inspect contactor
• Motor windings are damaged. Measure motor
resistance.
• Drive is not able to generate acceptable current
levels - after check everything above it the
problem could be drive related.
• The unit will automatically clear the error and
acknowledge the new feedback card. The unit
keeps and internal log of all changes to the
feedback board for future reference.
• The card was most likely damage. Replace the
feedback card.