Mitsubishi Electric 800 Series Instruction Manual page 550

• 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)
(N) Operation via communication and its settings
Fault removal
ON OFF
Motor coasting
Time
Display
ON
Fault removal
ON OFF
Pr.779 = "9999" Pr.779 = "9999" Pr.779 = "9999"
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)
Pr.779
Fault removal
ON OFF
Decelerates to stop
Time
Display
ON
549
PARAMETERS
5
GROUP
N