Mitsubishi Electric FR-A700 Series, Техническое руководство

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441
PARAMETER
2
P
ARAM
ETE
R
(6) Command source switchover by external
terminal (X67 signal)
In the network operation mode, the command source
switching signal (X67) switches start command
source and frequency command source. This
function is useful when controlling signal input from
both of control terminal and communication.
Set 67 in any of [
Pr. 178 to Pr. 189 Input terminal
function selection ] to assign the X67 signal to the
control terminal.
When X67 signal is OFF, control terminal has the
start command source and frequency command
source.
The ON/OFF state of the X67 signal is reflected only
during a stop. It is reflected after a stop when the
terminal is switched during operation.
When the X67 signal is OFF, a reset via
communication is disabled.
2.21.3 Initial settings and specifications of RS-485 communication
[Pr. 117 to 124, 331 to 337*, 341*, 502*, 549]
(common
)
Used to perform required settings for RS-485
communication between the inverter and personal
computer.
There are two different communications: communication
using the PU connector of the inverter and communication
using the RS-485 terminals. (only in
)
You can perform parameter setting, monitoring, etc. using
Mitsubishi inverter protocol or Modbus-RTU protocol.
To make communication between the personal computer
and inverter, initialization of the communication
specifications must be made to the inverter. Data
communication cannot be made if the initial settings are
not made or there is any setting error.
Always reset the inverter after making the initial settings of
the parameters. After you have changed the
communication related parameters, communication cannot
be made until the inverter is reset.
External
NET
Combined
—
Compensation
: Command is valid only from signal of external terminal.
: Command is valid only from communication.
: Command is valid from either of control terminal or communication.
: Command is valid from both control terminal or communication.
: Command is valid by signal from external terminal if [
Pr. 28 Multi-speed input compensation selection = 1
].
*1 These are not available for .
*2 These are not available for .
*3 These are not available for .
F700
E700 D700
D700
X67 Signal
State
Start Command
Source
Frequency Command
Source
No signal
assignment According to [ Pr. 338 ] According to [ Pr. 339 ]
ON
OFF
Command from control terminal is the only valid
command.
common
(*[ Pr. 331 to 337, 341 ] are not available for .)
(*In , [
Pr.502
] is available only when a communication option is installed. )
E700 D700
A700 F700
A700 F700
[PU connector communication related parameter]
[Pr.] Name Initial Value Setting Range Description
117
PU communication station
number
0
0 to 31
0 to 31 (0 to 247)
*1
Specifies the inverter station number.
Set the inverter station numbers when two or more inverters
are connected to one personal computer.
118 PU communication speed 192 48, 96, 192, 384
Set the communication speed.
The setting value 100 equals the communication speed.
For example, the communication speed is 19200bps when
the setting value is 192.
119
*2
PU communication stop bit
length
1
0
Stop bit length Data length
1bit
8bit
1 2bit
10 1bit
7bit
11 2bit
120
PU communication parity
check
2
0 Without parity check
1 With odd parity check
2 With even parity check
common
A700 F700
E700 D700