Instruction manual

16
Connection and Parameter Setting
(2) Related parameters for USB connection
Set the following communication parameter when connecting the USB connector of the inverter. When performing
parameter writing or run command input, set the following command source parameters, and switch the operation mode
to PU operation mode.
* Depending on the production year and month of FR-A700, the setting range and initial value of Pr. 551 may differ. For the details, refer to the Appendices of the
Instruction Manual of the inverter.
· Related parameter list
*1 Pr. 551 is always write-enabled.
*2 Available for FR-A700, A701, F700 and F700P.
*3 Available for FR-A700, A701 and E700(SC)(NC).
*4 Available for FR-E700(SC)(NC).
*5 Available for FR-A700 and E700(SC)(NC).
Inverter
Parameter Setting Operation
Mode
Communication Parameter Command Source Parameter
FR-A700, E700(SC)(NC)
Pr. 548 USB communication check time interval
0
(initial value 9999)
Pr. 551 PU mode operation command
source selection = "3 or 9999"
(initial value 9999) *
PU
FR-A701
Pr. 551 PU mode operation command
source selection = "3"
(initial value 2)
PU
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. 548 USB communication check time interval.
· Set a station number of the each inverter in Pr. 547 USB communication station number. Perform inverter reset after setting the
parameter.
Parameter
Number
Name Initial Value
Setting
Range
Description
547
USB communication
station number
0 0 to 31 Inverter station number specification
548
USB communication check
time interval
9999
0
USB communication is possible.
Trips in the PU operation mode (E.USB)
0.1 to
999.8.0s
Sets the interval of communication check time.
If a no-communication state persists for longer than
the permissible time, the inverter trips (E.USB).
9999 No communication check
551*1
PU mode operation
command source selection
FR-A701 : 2
FR-A700,
E700(SC)(NC) :
9999
1
*2
Selects the RS-485 terminal as the PU operation
mode command source.
2
Selects the PU connector as the PU operation mode
command source.
3
*3
Selects the USB connector as the PU operation
mode command source.
4
*4
Selects the operation panel as the PU operation
mode command source.
9999
*5
FR-A700: USB automatic recognition
Normally, operation panel (PU connector) is the
command source. During USB connection, USB is
the command source.
FR-E700(SC)(NC): 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 a USB
connection, USB is the command source.
Note
• Always reset the inverter after making the setting of the parameters. After you have changed the communication-
related parameters, communication cannot be established until the inverter reset.