Mitsubishi Electric FR-A700 EC, Инструкция по эксплуатации

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Function assignment of external terminals Parameter
6 - 292
6.14.3 Condition selection of function validity by the second function selection
signal (RT) and third function selection signal (X9) (RT signal, X9 signal,
Pr. 155)
You can select the second (third) function using the RT(X9) signal.
You can also set the condition (reflection conditon) where the second function and third function
become valid.
When the RT signal turns on, the second function becomes valid.
When the X9 signal turns on, the third function becomes valid.
For the X9 signal, set "9" in any of Pr. 178 to Pr. 189 (input terminal function selection) to assign
the function.
The second (third) function has the following applications:
●
Switching between normal use and emergency use.
●
Switching between heavy load and light load.
●
Changing of acceleration/deceleration time by broken line acceleration/deceleration.
●
Switching of characteristic between main motor and sub motor.
Pr.
No.
Name
Initial
Value
Setting
Range
Description Parameters referred to
Refer to
Section
155
RT signal function validity
condition selection
0
0
Second (third) function is immediately
made valid with on of the RT(X9) signal.
178–189 Input terminal
function
selection 6.14.1
10
Second (third) function is valid only dur-
ing the RT (X9) signal is on and constant
speed operation. (invalid during accelera-
tion/deceleration)
Fig. 6-125:
Second functions connection diagram
I001145C
Fig. 6-126:
Second acceleration/deceleration time
example
I001146E
Start
Second functions selection
High speed
Middle speed
Inverter
Pr. 155 = 0
Acceleration time
is reflected
Output frequency