Mitsubishi Electric 800 Series Instruction Manual page 481

• The following charts show operations when a communication line error occurs.
Pr. 502 = "0" (initial value)
Communication
fault
Fault indication
(E.SER/E.OP1)
Fault signal
(ALM)
Alarm signal
(LF)
Pr. 502 = "2"
Communication
fault
Fault indication
(E.SER/E.OP1)
Fault signal
(ALM)
Alarm signal
(LF)
Pr. 502 = "4"
Communication
fault
Warning indication
(CF)
Fault signal
(ALM)
Alarm signal
(LF)
480
5. PARAMETERS
5.12 (N) Operation via communication and its settings
Fault detected Fault cleared
OFF ON
Motor coasting
Display
OFF ON
OFF ON
Fault detected
Fault cleared
OFF ON
Decelerates Decelerates Decelerates
to stop to stop to stop
Display
OFF
OFF ON
Fault detected Fault cleared
OFF ON
Pr.779 = "9999"
Pr.779 ≠"9999" Pr.779 ≠"9999" Pr.779 ≠"9999"
(Operation continues at the frequency set in Pr.779) (Operation continues at the frequency set in Pr.779) (Operation continues at the frequency set in Pr.779)
Display
OFF
OFF ON
Pr. 502 = "1"
Communication
OFF
fault
Time
Fault indication
(E.SER/E.OP1)
Fault signal
(ALM)
OFF Alarm signal
(LF)
Pr. 502 = "3"
Communication
OFF
fault
Time
Fault indication Not displayed
Fault signal
(ALM)
OFF Alarm signal
(LF)
OFF
Pr.779
Time
OFF
Fault detected
Fault cleared
OFF ON
Decelerates to stop
Display
OFF
OFF ON
Fault detected Fault cleared
OFF ON
Pr.779 = "9999"
Pr.779 ≠"9999" Pr.779 ≠"9999" Pr.779 ≠"9999"
(Operation continues at the frequency set in Pr.779) (Operation continues at the frequency set in Pr.779) (Operation continues at the frequency set in Pr.779)
OFF
OFF ON
OFF
Time
ON
OFF
OFF
Time
OFF