Instruction manual

22
Connection and Parameter Setting
· Related parameter list
*1 When "1" (Modbus-RTU protocol) is set in Pr. 549, the setting range within parentheses is applied.
*2 Pr. 551 is always write-enabled.
*3 Available for FR-A700, A701, F700 and F700P.
*4 Available for FR-A700, A701 and E700.
*5 Available for FR-E700.
*6 Available for FR-A700 and E700.
REMARKS
· Switching of the operation mode is available at "Test Operation" window (Refer to page 97) in Navigation area.
· Set 3s or more (or 9999) in Pr. 122 PU communication check time interval, Pr. 336 RS-485 communication check time interval.
· Set a station number of the each inverter in Pr. 117 PU communication station number, Pr. 331 RS-485 communication station number
when connecting multiple inverters.
Parameter
Num
be r
Name Initial Value
Setting
Range
Description
117
PU communication
station number
0
0 to 31
(0 to 247)
*1
Inverter station number specification
Set the inverter station numbers when two or more inverters
are connected to one personal computer.
122
PU communication
check time interval
FR-A700, A701,
F700
, F700P : 9999
FR-E700 : 0
0
RS-485 communication is enabled. Note that a
communication fault (E.PUE) occurs as soon as the inverter
is switched to the operation mode with control source.
0.1 to
999.8s
Communication check (signal loss detection) time interval
If a no-communication state persists for longer than the
permissible time, the inverter trips (depends on Pr. 502 ).
9999 No communication check (signal loss detection).
123
PU communication
waiting time setting
9999
0 to 150ms
Set the waiting time between data transmission to the
inverter and response.
9999 Set with communication data.
331 *3
RS-485
communication
station number
0
0 to 31
(0 to 247)
*1
Set the inverter station number.
Set the inverter station numbers when two or more inverters
are connected to one personal computer.
336 *3
RS-485
communication
check time interval
0s
0
RS-485 communication is enabled. However, the inverter
trips if operation is changed to NET operation mode.
0.1 to
999.8s
Set the interval of communication check (signal loss
detection) time. (same specifications as Pr. 122)
9999 No communication check (signal loss detection)
337 *3
RS-485
communication
waiting time setting
9999
0 to 150ms,
9999
Set the waiting time between data transmission to the
inverter and response. (same specifications as Pr. 123)
551 *2
PU mode operation
command source
selection
FR-A701, F700,
F700P : 2
FR-A700, E700 :
9999
1
*3
Selects the PU connector as the PU operation mode
command source.
2
Selects the PU connector as the PU operation mode
command source.
3
*4
Selects the USB connector as the PU operation mode
command source.
4
*5
Selects the operation panel as the PU operation mode
command source.
9999
*6
FR-A700: USB automatic recognition
Normally, operation panel (PU connector) is the command
source. During USB connection, USB is the command
source.
FR-E700: USB automatic recognition
Normally, operation panel is the command source. When the
parameter unit is connected to the PU connector, PU is the
command source. During USB connection, USB is the
command source.
Note
• Always reset the inverter after making the setting of parameters. After you have changed the communication-related
parameters, communication cannot be established until the inverter reset.