Mitsubishi Electric fr-e700 series, Instruction Manual

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Parameter Set V/F pattern
FR-E700 SC EC/ENE 6 - 59
Constant-torque load application (Pr. 14 = 2 or 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 regenerative
load mode during forward rotation according to the load weight, e.g. counterweight system.
I001547E
Fig. 6-16: Characteristic with manual torque boost
NOTES
For the RT signal, set "3" in any of Pr. 178 to Pr. 184 "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 advanced magnetic flux vector control and gen-
eral-purpose magnetic flux vector control.
Changing the terminal assignment using Pr. 178 to Pr. 184 "Input terminal function selection" 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
oltage
Output frequency
Base frequency Pr. 3
Hz
Forward
rotation
Reverse
rotation
Pr. 14 = 3
Output v
oltage
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)