Mitsubishi Electric FR-A7NS Instruction Manual page 83

(2) Major Faults
When any of the protective functions is activated, the inverter shuts off the output and outputs the
corresponding alarm.
When the protective function is activated, refer to the inverter manual to take the appropriate corrective
action and reset the inverter to perform operation again.
Operation panel
indication
Name
Description
Check point
Corrective action
ALARM INDICATION DEFINITIONS AND CORRECTIVE ACTIONS
E.OPT
Option alarm
Displayed when :
FR-A7AP/FR-A7AL is not connected.
FR-A7AP connection cable is not connected correctly between FR-A7NS and FR-A7AP, or
FR-A7NS connection cable is not connected correctly between FR-A7NS and FR-A7AL (not
displayed when Pr. 800 Control method selection = "9" (vector control test operation) or Pr. 499
SSCNET III operation selection = "9999").
Check that the FR-A7AP/FR-A7AL is mounted to the option slot 2.
Check that the FR-A7AP connection cable is connected between the FR-A7NS and FR-A7AP.
(Check that the FR-A7NS connection cable is connected between the FR-A7NS and FR-A7AL.)
Check that the FR-A7AP/FR-A7AL is mounted to the option slot 2. (Refer to page 14.)
Connect the FR-A7AP connection cable securely between the FR-A7NS and FR-A7AP. (Refer
to page 14.)
(Connect the FR-A7NS connection cable securely between the FR-A7NS and FR-A7AL. (Refer
to the FR-A7AL instruction manual.))
FR-PU04
Option Fault
FR-PU07
8
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