8-7
Fault
display
Probable cause and remedyFault name and
meaning
f04 Initial memory fault
(F04)
An error in the built-in
EEPROM of the Inverter
has been detected.
· The internal circuitry of the Inverter has a fault.
® Initialize the Inverter with n001 set to 8 or 9 and
turn the Inverter OFF and ON.
® Replace the Inverter if the same fault occurs
again.
f05 Analog-to-digital
converter fault (F05)
An analog-to-digital
converter fault has been
detected.
· The internal circuitry of the Inverter has a fault.
® Turn the Inverter OFF and ON.
® Replace the Inverter if the same fault occurs
again.
f06 Option Card fault (F06)
An Option Card fault was
detected. The Inverter
will detect this error if the
output or verify signal of
the Card has a fault.
· The Option Card may not be connected properly.
® Turn OFF the Inverter, dismount and mount the
Option Card or attachment, and turn ON the
Inverter.
· The Option Card has a failure.
® Change the Option Card.
· The attachment has a failure.
® Change the attachment.
f07 Digital Operator fault
(F07)
An error in the built-in
control circuit of the
Digital Operator has
been detected.
The EEPROM of the
Digital Operator or the
analog-to-digital
converter has a failure.
· The internal circuitry of the Digital Operator has a
fault.
® Turn the Digital Operator OFF and ON.
® Replace the Digital Operator if the same fault
occurs again.
OPR Digital Operator
connection error (OPR)
The Inverter will detect
this error if n010 for
Digital Operator
connection error
processing selection is
set to 1.
· The Digital Operator may not be mounted prop-
erly.
® Turn OFF the Inverter, dismount and mount the
Digital Operator, and turn ON the Inverter.
Maintenance Operations Chapter 8