Alarm Indication Definitions - Mitsubishi Electric FR-A7NS Instruction Manual

8
ALARM INDICATION DEFINITIONS AND CORRECTIVE ACTIONS
This section provides the definitions of the alarm indications and their corrective actions.
(1) Alarm
When the protective function is activated, the output is not shut off.
Operation panel
indication
Name
Description
Check point
Corrective action
CF
Initialize communication waiting status
If the communication with the servo system controller is not established even after the inverter
with FR-A7NS and FR-A7AP/FR-A7AL installed is powered on, the CF warning is displayed in
FR-DU07 (or FR-PU07). The CF warning is also displayed when the communication is
established and then shut off. The display of the CF warning is reset when the communication
is established with the servo system controller. Then the inverter becomes ready for operation.
The CF warning is displayed during initialization (when the display of SSCNET ΙΙΙ
communication status is "110" to "180"). (Refer to page 33, 34.)
When Pr. 499 SSCNET III operation selection = "9999" (Operation invalid mode), the CF warning
is not displayed.
Check the communication cable for a fault.
Check that the communication equipment (personal computer) and motion controller have not
been powered off.
Change the communication cable.
Power on the communication equipment (personal computer) and motion controller.
FR-PU07 CF
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