Mitsubishi Electric FR-A700 Series, Technical Manual

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54
SPECIFICATIONS
1.4.11 Second function selection signal, third function selection signal (RT, X9 * )
(common
)
Second (third) function can be selected with the RT (X9)
signal.
When the RT signal turns ON, the second function
becomes valid.
When the X9 signal turns ON, the third function becomes
valid.
For RT signal, set "3" to any of [
Pr.178 to 189 Input terminal
function selection ] to assign the function. For X9 signal, set
"9" to any of [
Pr.178 to 189 Input terminal function selection
]
to assign the function.
The second (third) function has the following applications.
1) Switching between normal use and emergency
use
2) Switching between heavy load and light load
3) Changing of acceleration/deceleration time by
broken line acceleration/deceleration
4) Switching of characteristic between the main
motor and sub motor
You can set the operating condition (reflection timing) for
second (third) function with [
Pr.155 ] in .
The function immediately activates by turning ON/OFF the
RT signal in
.
(*X9 is not available for the .)
common
F700 E700 D700
A700 F700
E700 D700
[Pr.] Name
Initial
Value
Setting
Range
Description
Setting Range
155
RT signal function
validity condition
selection
0
0
Second (third) function is immediately made
valid with ON of the RT (X9) signal.
{
—
10
Second (third) function is valid only during the
RT (X9) signal is ON and constant speed
operation. (invalid during acceleration/
deceleration)
Second function connection diagram Second acceleration/deceleration time example
A700
F700
E700
D700
STF (STR)
Inverter
Start
Second
function
selection
RT
High speed RH
Middle speed
RM
SD
(initial value)
RT
Output frequency
[ Pr.155= 0 ]
RH
RM
Acceleration
time is reflected
Time