Mitsubishi Electric 800 Series Instruction Manual (Function page 267

*6 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
*7 At occurrence of communication error, the inverter cannot be reset.
*8 The inverter can be reset by using the multi-speed operation function and analog input (terminal 4).
 Operation when a communication error occurs
• Standard model
Fault type
Inverter fault —
Pr.551 = "2"
Pr.551 ≠ "2" and
either of the
Communication
following:
error at PU
• Pr.550 = "2"
connector
• Pr.550 = "9999"
(communication
option is not
installed)
Other than the above Continued
Communication
Pr.551 = "3, 9999"
error at USB
connector
Other than the above Continued
Communication
Pr.550 = "0, 9999"
error at
communication
Other than the above Continued
option
• Ethernet model / Safety communication model
Fault type
Inverter fault —
Communication
Pr.551 = "3, 9999"
error at USB
connector
Other than the above Continued
Pr.550 = "5" or
Pr.550 = "9999"
Communication
(communication
error at Ethernet
option is not installed)
connector
Other than the above Continued
Communication
Pr.550 = "0, 9999"
error at
communication
Other than the above Continued
option
*1 Selectable with Pr.75 Reset selection/disconnected PU detection/PU stop selection.
*2 Selectable with Pr.122 PU communication check time interval, Pr.548 USB communication check time interval, Pr.1431 Ethernet signal
loss detection function selection, Pr.1432 Ethernet communication check time interval, and Pr.1457 Extended setting for Ethernet
signal loss detection function selection.
*3 In the PU JOG operation mode, operation always stops when the PU is disconnected. The operation at a PU disconnection fault (E.PUE)
occurrence is as set in Pr.75 Reset selection/disconnected PU detection/PU stop selection.
*4 The operation depends on the communication option setting.
 Selecting the command interface in the Network operation mode (Pr.338,
Pr.339)
• Selecting a command interface is required for the following two types of commands: the operation command using the start
signals and the signals related to the inverter function selection, and the speed command using signals related to the
frequency setting.
266
11. (D) Operation Command and Frequency Command
11.3 Start command source and frequency command source during communication operation
page 209.) Parameter clear is disabled.
Condition
PU operation
Stop
Stop/
*2
continued
Continued
Stop/
*2
continued
Continued
Condition
PU operation
Stop
Stop/
*2
continued
Continued
Continued
Operation in each operation mode at error occurrences
Combined
External operation
operation mode 1
(Pr.79 = "3")
Continued
Continued
Operation in each operation mode at error occurrences
Combined
External operation
operation mode 1
(Pr.79 = "3")
Continued
Combined NET
operation operation
mode 2 (via PU
*4
(Pr.79 = "4") connector)
Stop/
—
*2
continued
Stop/
*2
continued
—
Stop/
Continued
*2
continued
—
Combined NET
operation operation
mode 2 (via Ethernet
*4
(Pr.79 = "4") connector)
Stop/
Continued
*2
continued
Stop/
*2
continued
—
—
NET
operation
*4
(via option)
Continued
—
Continued
Stop/
*4
continued
NET
operation
*4
(via option)
—
Continued
Stop/
*4
continued