Mitsubishi Electric FR-D720S SC EC, Инструкция по эксплуатации, Страница: 223 / 512

Parameter Selection and protection of a motor
FR-D700 SC EC 6 - 73
Use two motors (Pr. 450)
●
Set Pr. 450 "Second applied motor" to use two different motors with one inverter.
●
When "9999" (initial value) is set, no function is selected.
●
When a value other than "9999" is set in Pr. 450, the second motor is valid when the RT
signal turns on.
●
For the RT signal, set "3" in any of Pr. 178 to Pr. 182 to assign the function.
NOTE For the FR-D740-120SC and 160SC, the Pr. 0 "Torque boost" and Pr. 12 "DC injection brake
operation voltage" settings are automatically changed according to the Pr. 71 setting as fol-
lows.
Pr. 71 0, 3, 23, 40, 43 1, 13, 50, 53
Pr. 0 3% 2%
Pr. 12 4% 2%
Tab. 6-7: Changes of parameter 0 and 12 related to parameter 71
b
CAUTION:
Set the electronic thermal relay function to the thermal characteristic for the constant-
torque motor when using a geared motor (GM-S, GM-D, GM-SY, GM-HY2 series) to
perform General-purpose magnetic-flux vector control.
NOTES
The RT signal acts as the second function selection signal and makes the other second
functions valid. (Refer to section 6.9.3.)
Changing the terminal assignment using Pr. 178 to Pr. 182 may affect other functions. Make
setting after confirming the function of each terminal.
b
CAUTION:
Set this parameter correctly according to the motor used. Incorrect setting may cause
the motor to overheat and burn.