Selection Signal (Rt, Pr. 155) - Mitsubishi Electric FR-D720S SC EC Instruction Manual

Parameter
6.9.3 Condition selection of function validity by second function selection
signal (RT, Pr. 155)
You can select the second function using the RT signal. For the RT signal, set "3" in any of
Pr. 178 to Pr. 182 to assign the function.
The second 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.
Second functions selection
Following functions that can be set as second functions:
Function
Torque boost
Base frequency
Acceleration time
Deceleration time
Electronic thermal relay function
Stall prevention
Applied motor
Tab. 6-13: Functions that can be set as second functions
NOTES When the RT signal is on, the above second function is selected at the same time.
Changing the terminal assignment using Pr. 178 to Pr. 182 may affect the other functions.
Make setting after confirming the function of each terminal.
FR-D700 SC EC
Inverter
Start
High speed
Middle speed
Acceleration time
is reflected
Function assignment of external terminals
Fig. 6-45:
Second functions connection diagram
Fig. 6-46:
Second acceleration/deceleration time
example
Time
Parameter Number as
1. function
Pr. 0
Pr. 3
Pr. 7
Pr. 8
Pr. 9
Pr. 22
Pr. 71
I001145C
I001794E
Refer to
Page
2. function
Pr. 46 6-26
Pr. 47 6-44
Pr. 44 6-59
Pr. 44, Pr. 45 6-59
Pr. 51 6-66
Pr. 48 6-33
Pr. 450 6-72
6 - 93