Mitsubishi Electric FR-A800 Series Instruction Manual page 668

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