Operation At Communication Error Occurrence; Alarm And Measures - Mitsubishi Electric FR-A7NS Instruction Manual

INVERTER SETTING AND DISPLAY
5.3

Operation at Communication Error Occurrence

5.3.1

Alarm and measures

(1) The inverter operates as follows at alarm occurrences.
Alarm
Location
Inverter operation
Inverter
Data communication
Inverter operation
Communication
line
Data communication
Communication
option
connection
error
Communication
option
Error of
communication
option itself
(2) Measures at alarm occurrences
Alarm Indication Alarm Definition
E.OP3 Communication line error Inspect the master. (Refer to page 78.)
E.1, E.2
Option alarm
E.3
When alarms other than the above are displayed, refer to the inverter manual and remove the cause of the alarm.
40
Status
Inverter
operation
Data
communication
Inverter
operation
Data
communication
Fit the communication option in the option connector 3. (Refer to page 14.)
Check the connection between the inverter and option unit for poor
contact, etc. and remove the cause of the error. (Refer to page 14.)
Operation Mode
SSCNET ΙΙΙ
External
Operation Operation
Inverter trip Inverter trip
Continued Continued
Inverter trip Continued
Stop
Inverter trip Inverter trip
Continued Continued
Inverter trip Continued
Stop
Measures
PU Operation
Inverter trip
Continued
Continued
Stop Stop
Inverter trip
Continued
Continued
Stop Stop