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8.1.2. Protection Messages and Actions
When VF66B (DC motor drive) starts a protection operation due to an abnormality during operation, you should
check the LED display on the console panel [SET66-Z] and take appropriate actions.
<Common to all models>
Console LED display
Cause
Where to check and how to
take actions
Reference
1. The connectors of the console
panel [SET66-Z] are not inserted
properly
Check the connector insertion
status
2. The printed control board
[VFC66-Z] is in the program
rewrite mode.
After rewriting of the program
is complete, it is automatically
restored.
[Contents]
It starts when the
communication time error
occurs between the
printed control board
[VFC66-Z] and the console
panel [SET66-Z].
3. The printed control board
[VFC66-Z] malfunctions
Replace the printed control
board [VFC66-Z].
Chapter 9 Replace the
Printed Control Board
[VFC66-Z]
Console LED display
Cause
Where to check and how to
take actions
Reference
1. Data was written incorrectly to
the EEPROM (built-in
memory) due to too much
noise.
Take measures against
noise for a wiring from the
printed control board
[VFC66-Z].
2. An uninitialized printed control
board [VFC66-Z] was
implemented.
Initialize the printed control
board [VFC66-Z].
Chapter 9 Replace
the Printed Control
Board [VFC66-Z]
[Contents]
It starts when the setting
data stored in the built-in
memory could not be
obtained correctly.
3. Faulty EEPROM (built-in
memory) parts
Replace the printed control
board [VFC66-Z].
Chapter 9 Replace
the Printed Control
Board [VFC66-Z]
*Once
occurs, it cannot be restored unless the printed control board
[VFC66-Z] is initialized.
Console LED display
Cause
Where to check and how to
take actions
Reference
to
1. The external failure signal was
input.
Check the input condition of
the external failure signal.
[Contents]
It starts when the
multifunction input
external failure 1 to
failure 4 have been
input.
2. Multifunction input settings are
not correct.
Check multifunction input
settings (c-00 through
c-17).
Chapter 6, 6.4
Area c
Chapter 7, 7.4
Area c
