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2
.14 Communication Parameters (Only for the type having
the RS-485 communication function)
You can perform communication operation from the RS-485 connector of the
inverter through RS-485.
(1) Operational functions
1) Operation mode switching
[Operation mode switching method]
Computer
link
operation
Switching by
computer
program
External
operation
PU
operation
Switching by operation
panel/parameter
unit (FR-PU04)
(Switching must
not be made)
C
D
E
F
B
A
Symbol Switching Type Switching Method
A
PU operation to external
operation
Using the
PU
EXT
key of the operation panel or
PU
/
EXT
key of the parameter unit (FR-PU04)
B
External operation to PU
operation
Using the
PU
EXT
key of the operation panel or
PU
/
EXT
key of the parameter unit (FR-PU04)
C
External operation to
computer link operation
Using the
computer program
D
Computer link operation to
external operation
Using the
computer program
Read (H7B)/
Write (HFB)
H0000:
Communication
operation
H0001: External
operation
E
PU operation to computer
link operation
Switching must not be made
(External operation may be selected at
A
and then
switched to computer link operation at
C
*)
F
Computer link operation to
PU operation
Switching must not be made
(External operation may be selected at
D
and then
switched to PU operation at
B
*)
* When "1" is set in the communication parameter n10 "link start mode selection",
the inverter is placed in the computer link operation mode at power-on or inverter
reset. (Note that it is overridden by the Pr. 79 "operation mode selection" setting.)
REMARKS
Unlike the other inverters, the FR-S500 series is not the type of inverter whose
operation panel is removed to make communication.
When the setup software is used to switch to the PU operation mode (Pr. 79 = 1, 3,
4), parameter setting cannot be made. At that time, pressing the
RUN
key of the
operation panel starts the inverter.