Mitsubishi Electric FR-F820-04750 Instruction Manual page 292

(D) Operation command and frequency command
Command Condition
source (Pr. 551 setting)
3
(USB connector)
9999
(automatic
recognition, with
USB connection)
Control via USB
connector
Other than the
above
Communica-
tion option (via
⎯
communica-
tion)
External
⎯
terminal at the
control circuit
: Valid, ×: Invalid, Δ: Partially valid
Tab. 5-59: Functions in the single operation modes (2)
Follows the Pr. 338 "Communication operation command source" and Pr. 339 "Communication
speed command source" settings. (Refer to page 5-127.)
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 page 5-60.)
Writing of some parameters may be disabled by the Pr. 77 "Parameter write selection" setting and
the operating condition. (Refer to page 5-69.)
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 page 5-69.) Parameter clear
is disabled.
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 communica-
tion option connected.
5 - 130
Item
PU
operation
Operation

command
(start, stop)

Running frequency

Monitor

Parameter writing

Parameter read

Inverter reset
Operation
command
×
(start, stop)
Running frequency ×

Monitor
Parameter writing
×

Parameter read

Inverter reset
Operation
command ×
(start, stop)
Running frequency ×

Monitor
Parameter writing
×

Parameter read
Inverter reset ×

Inverter reset
Operation
command ×
(start, stop)
Frequency setting ×
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)
× ×

×
 
× ×
 
 
× ×
× ×
 
× ×
 
 
× ×
× ×
 
× ×
 
× ×
 
 

×
Parameters
NET
operation
operation
(when RS-485
communica-
terminals are
tion option is
used)

×
× ×
 
× ×
 
 
× ×
× ×
 
× ×
 
 
× ×
× ×
 
× ×
 
× ×
 
×
×

×
NET
(when
used)





