Mitsubishi Electric FR-A700 Instruction Manual page 341

Parameter
frequency
prevention
Pr. 49
frequency
prevention
When Pr. 49 ≠ 9999 (level changed according to frequency) and Pr. 48 = 0%
NOTES
The stall prevention operation level is 0% at or higher than the frequency set in Pr. 49.
In the initial setting, the RT signal is assigned to the RT terminal. By setting "3" to any of
Pr. 178 to Pr. 189 "Input terminal function selection", you can assign the RT signal to the
other terminal.
Changing the terminal assignment using Pr. 178 to Pr. 189 "Input terminal function selec-
tion" may affect the other functions. Please make setting after confirming the function of
each terminal.
The RT (X9) signal acts as the second (third) function selection signal and makes the other
second functions valid.
FR-A700 EC
f > Pr. 49 (Pr. 115)
set
Output
frequency [Hz]
Set
Pr. 49
Stall
Pr. 22
used
level
≤ Pr. 49 (Pr. 115)
f
set
Output
frequency [Hz]
Output frequency
Set
Stall
level
Pr. 22
used
Adjust the output torque of the motor (current)
Fig. 6-53:
Stall prevention level, when the set frequency
exceeds the value of Pr. 49 (Pr. 115)
Output frequency
Time
Pr. 48
used
Fig. 6-54:
Stall prevention level, when the set frequency
is equal to or less than the value of Pr. 49
(Pr. 115)
Time
Pr. 48
used
I001123E
I001124E
6 - 161