Mitsubishi Electric FR-CS84-012 Instruction Manual page 168

Pr.502 = "0" (initial value)
Fault occurrence
OFF
Communication
fault
Fault display
(E.SER/E.OP1)
OFF
Fault output
(ALM)
Alarm output OFF
(LF)
Pr.502 = "2"
Fault occurrence
Communication
OFF
fault
Fault display
(E.SER/E.OP1)
Fault output OFF
(ALM)
Alarm output
OFF
(LF)
Pr.502 = "4"
NOTE
• Fault output indicates the Fault (ALM) signal and an alarm bit output.
• When the fault output is set enabled, fault records are stored in the faults history. (A fault record is written to the faults history
at a fault output.)
• When the fault output is not enabled, fault record is overwritten to the faults history temporarily but not stored.
• After the fault is removed, the fault indication goes back to normal indication on the monitor, and the faults history goes back
to the previous status.
• When Pr.502 ≠ "0", the normal deceleration time setting (settings like Pr.8, Pr.44, and Pr.45) is applied as the deceleration
time. Normal acceleration time setting (settings like Pr.7 and Pr.44) is applied as the acceleration time for restart.
• When Pr.502 = "2", the inverter operates with the start command and the speed command, which were used before the fault.
• If a communication line error occurs, then the error is removed during deceleration while Pr.502 = "2", the motor re-accelerates
from that point.
Fault removal
ON OFF
Motor coasting
Time
Display
(E.SER/E.OP1)
ON
ON OFF
Fault removal
ON OFF
Decelerates
to stop
Time
Display
ON OFF
Pr.502 = "1"
Fault occurrence
Communication
OFF
fault
Fault display
OFF
Fault output
(ALM)
Alarm output OFF
(LF)
5.11 (N) Communication operation parameters
Fault removal
ON OFF
Decelerates
to stop
Time
Display
ON
ON OFF
167
5. PARAMETERS
2
2
3
4
5
6
7
8
9
10