Start Command Source And Frequency Command Source During Communication Operation - Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual

5.9.3 Start command source and frequency command
source during communication operation
The start and frequency commands given from an external device can be made valid when using the RS-485 terminals or the
communication option. The command source in the PU operation mode can also be selected.
Pr.
Communication
338
operation command
D010
source
339 Communication speed
D011 command source
NET mode operation
550
command source
D012
selection
PU mode operation
551
command source
D013
selection
 Selection of command source in the network (NET) operation mode
(Pr.550)
• Either of the RS-485 terminals or the communication option can be specified for the command source in the Network
operation mode.
• For example, whether or not the communication option is installed, set Pr.550 = "1" to write parameters or give the start
and frequency commands via RS-485 terminals in the Network operation mode.
NOTE
• In the initial setting, "9999" (communication option automatic recognition) is set for Pr.550. Thus, if the communication option
is mounted, parameters cannot be written or the start and frequency commands cannot be sent by communications that use
the RS-485 terminals. (Monitoring or parameter reading can be performed.)
 Selection of the command source of the PU operation mode (Pr.551)
• Any of the PU connector, RS-485 terminals, or USB connector can be specified as the command source in the PU
operation mode.
• To write parameters or execute the start and frequency commands through communication in the PU operation mode, set
Pr.551 = "1" for communication via the RS-485 terminals, or set Pr.551 = "3" or "9999" for communication via the USB
connector.
380
5. PARAMETERS
5.9 (D) Operation command and frequency command
Initial
Name
value
0
0
9999
9999
Setting
range
0 Start command source is communication.
1 Start command source is external.
0 Frequency command source is communication.
1 Frequency command source is external.
Frequency command source is external. (When there is no external
2 input, the frequency command given via communication is valid, and
the frequency command given via terminal 2 is invalid.)
The communication option is the command source when in the NET
0
operation mode.
The RS-485 terminals are the command source when in the NET
1
operation mode.
Communication option is recognized automatically.
Normally, the RS-485 terminals are the command source. When the
9999
communication option is mounted, the communication option is the
command source.
The RS-485 terminals are the command source when in the PU
1
operation mode.
The PU connector is the command source when in the PU operation
2
mode.
The USB connector is the command source when in the PU operation
3
mode.
USB automatic recognition.
9999 Normally, the PU connector is the command source. When the USB is
connected, the USB connector is the command source.
Description