Mitsubishi Electric FR-F820-00046, Instruction Manual

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Parameters (T) Multi-Function Input Terminal Parameters
FR-F800 5 - 291
5.9.10 Selecting operation condition of the second function selection signal (RT)
Second function can be selected by the RT signal.
Operating condition (validity condition) for second (third) function can be also set.
●
Turning ON the Second function selection (RT) signal enables the second functions.
●
The following table lists application examples of the second 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
Pr. Name Initial value Setting range Description
155
T730
RT signal function validity
condition selection
0
0
Second function is immediately enabled
with ON of RT signal.
10
Second function will be enabled while RT
signal is ON and running in constant speed.
(Disabled while accelerating or
decelerating)
Fig. 5-136:
Connection diagram for second function selection
I002655E_G
Fig. 5-137:
Example of second acceleration/deceleration time
I001146E
STF/STR
PC
RT
RH
RM
Inverter
Start
Second function selection
High speed
Middle speed
Setting value "0"
Acceleration time
is applied
Output fr
equenc
y
Time
(initial value)