Mitsubishi FR-A846-00023 Instruction Manual page 147

• The following shows operations when a communication line error occurs.
Pr. 502 setting "0" (initial value)
Communication
fault
Fault display
(E.SER ∗1 )
Fault output
(ALM)
Alarm output
(LF)
Pr. 502 setting "2"
Communication
fault
Fault display
( E.SER ∗1 )
Fault output
(ALM)
Alarm output
(LF)
Pr. 502 setting "4"
Communication
fault
Warning display
(CF)
Fault output
(ALM)
Alarm output
(LF)

If in communication by the communication option, "E.OP1" is displayed.
146
APPENDIX
Fault occurrence Fault removal
OFF ON
Motor coasting
Display
OFF ON
OFF ON
Fault occurrence
Fault removal
OFF ON
Decelerates
to stop
Display
OFF
OFF ON
Fault recognition Fault removal
OFF ON
Pr.779 = "9999"
Pr.779 ≠"9999"
(Runs at the frequency setting of Pr.779)
Display
OFF
OFF ON
Pr. 502 setting "1"
Communication
OFF OFF
fault
Time
Fault display
(E.SER ∗1 )
Fault output
(ALM)
OFF Alarm output OFF
(LF)
Pr. 502 setting "3"
Communication
OFF OFF
fault
Time
Fault display Not displayed
Fault output OFF
(ALM)
OFF Alarm output OFF
(LF)
OFF
Pr.779
Time
OFF
Fault occurrence
Fault removal
ON
Decelerates
to stop
Display
OFF ON
ON
Fault recognition Fault removal
ON
Pr.779 = "9999"
Pr.779 ≠"9999"
(Runs at the frequency setting of Pr.779)
ON OFF
OFF
Time
OFF
OFF
Time