Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 634

• The following charts show operations when a communication option fault occurs.
Pr.502 = "0 (initial value) or 3"
Fault occurrence
OFF
Fault
Fault display
(E.1)
Fault output
OFF
(ALM)
Alarm output
OFF
(LF)
Pr.502 = "4"
Fault occurrence
OFF
Fault
Warning display
(CF)
Fault output
OFF
(ALM)
Alarm output
OFF
(LF)
Fault removal
ON OFF
Motor coasting
Time
Display
ON
Fault removal
ON OFF
Pr.779 = "9999" Pr.779 = "9999" Pr.779 = "9999"
Pr.779
Pr.779 ≠"9999"
(Runs at the frequency setting of Pr.779)
Time
Display
ON
Pr.502 = "1 or 2"
Fault occurrence
OFF
Fault
Fault display
(E.1)
Fault output
OFF
(ALM)
Alarm output
OFF
(LF)
5.15 (N) Communication operation parameters
Fault removal
ON OFF
Decelerates to stop
Time
Display
ON
5. PARAMETERS
1
2
3
4
5
6
7
8
9
10
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