Mitsubishi Electric 800 Series Instruction Manual page 305

(D) Operation command and frequency command
Condition
Command
(Pr.551
source
setting)
External
terminal at the ―
control circuit

Follows the Pr.338 Communication operation command source and Pr.339 Communication speed command source settings. (Refer to
page 301.)

At occurrence of RS-485 communication error, the inverter cannot be reset from the computer.

PU stop is only enabled. PS is displayed on the operation panel during PU stop. Follows the Pr.75 Reset selection/disconnected PU
detection/PU stop selection setting. (Refer to

Writing of some parameters may be disabled by the Pr.77 Parameter write selection setting and the operating condition. (Refer to

Some parameters are write-enabled independently of the operation mode and command source presence/absence. Writing is also enabled
when Pr.77="2". (Refer to

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.
Operation at fault
Conditions
Fault record
(Pr.551 setting)
Inverter fault ―
2 (PU connector)
9999 (automatic
PU connector
recognition)
disconnection
Other than 2
Communication
2 (PU connector)
error at PU
connector
Other than 2
1 (RS-485
Communication
terminals)
error at RS-485
terminals
Other than 1
3 (USB
connector)
Communication
9999 (automatic
error at USB
recognition)
connector
Other than 3
Communication
error at
―
communication
option

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.
304
PARAMETERS
Item
PU
operation
Inverter reset 
Operation command

(start, stop)

Frequency setting
page 244.)
page 251.) Parameter clear is disabled.
Operation in each operation mode at error occurrences
PU External
operation operation
Stop
Stop/continued

Stop/continued

Stop/continued
Continued

Continued
Stop/continued
Continued

Continued
Stop/continued
Continued

Continued
Continued
Controllability in each operation mode
External/PU External/PU
combined combined
External
operation operation
operation
mode 1 mode 2
(Pr.79 =3) (Pr.79 =4)
  

 

 
External/PU External/PU
combined combined
operation operation
mode 1 mode 2
(Pr.79 =3) (Pr.79 =4)
Stop/
continued
Stop/
continued
NET operation
NET operation
(when
(when RS-485
communication
terminals are
option is used)
used)







∆
: Valid : Invalid : Partially valid
NET NET operation
operation (when
(when RS-485 communication
terminals are option is
used) used)

Continued

Continued

Stop/continued
Continued

Stop/continued


page 251.)
