Mitsubishi Electric FR-F800 Series Instruction Manual page 378

5.9.10 Selecting the condition to activate the Second
The second function can be selected using the RT signal. The condition to activate the second function can be also set.
Pr.
RT signal function
155
validity condition
T730
selection
• Turning ON the Second function selection (RT) signal enables the second functions.
• The following are the examples of the applications of the second functions.
Switching between regular use and emergency use
Switching between heavy load and light load
Changing the acceleration/deceleration time by break point acceleration/deceleration
Switching characteristics of main motor and sub motor
Connection diagram example for the second function
Second function selection
High speed
Middle speed
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function selection (RT) signal
Name Initial value
0
Inverter
STF/STR
Start
RT
RH
RM
SD
search engine
Setting range
The second function is immediately enabled when the RT signal
0
is turned ON.
The function cannot be changed to the second function during
acceleration/deceleration. When the signal is turned ON during
10
acceleration/deceleration, the function is changed after the
acceleration/deceleration is finished.
Example of the second acceleration/deceleration time
Setting value "0"
RT
RH
RM
Description
(initial value)
Acceleration
time is applied
Time
5. PARAMETERS
5.9 (T) Multi-function input terminal parameters
1
2
3
4
5
6
7
8
9
10
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