Selecting Operation Condition Of The Second Function Selection Signal (Rt) - Mitsubishi Electric FR-A820-00046 Instruction Manual

Parameters
5.12.10 Selecting operation condition of the second function selection signal (RT) and
the third function selection signal (X9)
Second (third) function can be selected by the RT (X9) signal.
Operating condition (validity condition) for second (third) function can be also set.
Pr.
155
T730
● Turning ON the Second function selection (RT) signal enables the second functions.
● Turning ON the Third function selection (X9) enables the third functions. For the X9 signal, set "9"
in Pr. 178 to 189 (input terminal function selection) to assign the function.
● The following table lists application examples of the second (third) functions.
– Switching between regular use and emergency use
– Switching between heavy load and light load
– Change the acceleration/deceleration time by break point acceleration/deceleration
– Switching characteristics of main motor and sub motor
Second function selection
FR-A800
Name
RT signal function validity
condition selection
Start
High speed
Middle speed
Setting value "0" (initial value)
Acceleration time
is applied
(T) Multi-Function Input Terminal Parameters
Initial value Setting range
0
0
10
Fig. 5-215:
Connection diagram for second function selection
Inverter
STF/STR
RT
RH
RM
PC
Fig. 5-216:
Example of second acceleration/deceleration time
Time
Description
Second (third) function is immediately
enabled with ON of RT (X9) signal.
Second (third) function will be enabled
while RT (X9) signal is ON and running in
constant speed. (Disabled while
accelerating or decelerating)
I002655E_G
I001146E
5 - 445