Mitsubishi FR-A800

(D) Operation command and frequency command
320
PARAMETERS
Operation at fault
 Selectable with Pr.75 Reset selection/disconnected PU detection/PU stop selection
 Selectable with Pr.122 PU communication check time interval, Pr.336 RS-485 communication check time interval, and Pr.548 USB
communication check time interval
 Follows the communication option
 In the PU JOG operation mode, operation always stops when the PU is disconnected. The operation of PU disconnection (E.PUE) follows the
Pr.75 Reset selection/disconnected PU detection/PU stop selection setting.
 When Pr.550 NET mode operation command source selection= "1" (RS-485 terminals enabled), or Pr.550 NET mode operation command
source selection="9999" with no communication option connected.
 When Pr.550 NET mode operation command source selection="0" (communication option enabled), or Pr.550 NET mode operation
command source selection="9999" with communication option connected.
Fault record
Conditions
(Pr.551 setting)
Operation in each operation mode at error occurrences
PU
operation
External
operation
External/PU
combined
operation
mode 1
(Pr.79 =3)
External/PU
combined
operation
mode 2
(Pr.79 =4)
NET
operation
(when RS-485
terminals are
used)

NET operation
(when
communication
option is
used)

Inverter fault  Stop
PU connector
disconnection
2 (PU connector)
9999 (automatic
recognition)
Stop/continued

Other than 2 Stop/continued 
Communication
error at PU
connector
2 (PU connector)
Stop/
continued

Continued
Stop/
continued

Continued
Other than 2 Continued
Communication
error at RS-485
terminals
1 (RS-485
terminals)
Stop/
continued

Continued
Stop/
continued

Continued
Other than 1 Continued
Stop/continued

Continued
Communication
error at USB
connector
3 (USB
connector)
9999 (automatic
recognition)
Stop/
continued

Continued
Other than 3 Continued
Communication
error at
communication
option
 Continued
Stop/continued
