Mitsubishi Electric FR-A820-00046 Instruction Manual page 788

(N) Operation via communication and its settings
Pr. 502 setting "0" (initial value)
Communication OFF
fault
Fault display
(E.SER )
OFF
Fault output
(ALM)
OFF
Alarm output
(LF)
Pr. 502 setting "2"
Fault occurrence
OFF
Communication
fault
Fault display
(E.SER )
Fault output
(ALM)
OFF
Alarm output
(LF)
Fig. 5-308: Operation selection at a communication error
In communication by the communication option, E.OP1 is displayed.
5 - 608
Fault occurrence Fault removal
ON
Motor coasting
Display
ON
ON OFF
Fault removal
ON OFF
Decelerates
to stop
Display
OFF
ON OFF
Pr. 502 setting "1"
OFF
OFF
Communication
fault
Time
Fault display
(E.SER )
Fault output
(ALM)
Alarm output
(LF)
Pr. 502 setting "3"
OFF
Communication
fault
Time
Not displayed
Fault display
OFF
Fault output
(ALM)
OFF
Alarm output
(LF)
Fault occurrence Fault removal
ON
Motor coasting
Display
OFF
ON
OFF ON
Fault recognition Fault removal
ON
Pr. 779 = "9999"
≠
Pr. 779 "9999"
(Runs at the frequency setting of Pr. 779)
ON
Parameters
OFF
Time
OFF
OFF
Time
OFF
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