Mitsubishi Electric FR-D720S SC EC, Инструкция по эксплуатации

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Parameter Set V/f pattern
FR-D700 SC EC 6 - 47
Constant-torque load application (Pr. 14 = 2 oder 3)
Set "2" when a vertical lift load is fixed as power driving load at forward rotation and regenerative
load at reverse rotation.
Pr. 0 "Torque boost" is valid during forward rotation and torque boost is automatically changed
to "0%" during reverse rotation. Pr. 46 "Second torque boost" is made valid when the RT signal
turns on.
Set "3" for an elevated load that is in the driving mode during reverse rotation and in the regen-
erative load mode during forward rotation according to the load weight, e.g. counterweight sys-
tem.
I001547E
Fig. 6-14: Characteristic with manual torque boost
NOTES
For the RT signal, set "3" in any of Pr. 178 to Pr.182 "Input terminal function selection" to
assign the function.
When torque is continuously regenerated as vertical lift load, it is effective to set the rated
voltage in Pr. 19 "Base frequency voltage" to prevent trip due to current at regeneration.
In addition, when the RT signal is on, the other second functions are also valid.
Load pattern selection does not function under general-purpose magnetic flux vector cont-
rol.
Changing the terminal assignment using Pr. 178 to Pr. 182 may affect the other functions.
Make setting after confirming the function of each terminal.
For vertical lift loads
At forward rotation boost ...... Pr. 0 (Pr. 46) setting,
At reverse rotation boost ...... 0%
(Lifts, hoists, elevators)
Pr. 14 = 2
Pr. 0
Pr. 46
Output v
o
ltage
Output frequency
Base frequency Pr. 3
Hz
Forward
rotation
Reverse
rotation
Pr. 14 = 3
Output v
o
ltage
Output frequency
Base frequency Pr. 3
Hz
Reverse
rotation
Forward
rotation
Pr. 0
Pr. 46
For vertical lift loads
At forward rotation boost...... 0%,
At reverse rotation boost...... Pr. 0 (Pr. 46) setting
(Lifts, hoists, elevators)