Set V/f pattern
Parameter
6 - 176
Vertical lift load applications (setting values 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.
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. 6-62:
Characteristic with manual torque boost
NOTE
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.
For vertical lift loads
At forward rotation boost ... Pr. 0 setting
At reverse rotation boost ... 0%
(Lifts, hoists, elevators)
Pr. 14 = 2
Pr. 0
Output v
o
ltage
Output frequency
Base frequency Pr. 3
Hz
Forward
rotation
Reverse
rotation
For vertical lift loads
At forward rotation boost ... 0 %
At reverse rotation boost ... Pr. 0 setting
(Lifts, hoists, elevators)
Pr. 14 = 3
Pr. 0
Output v
o
ltage
Output frequency
Base frequency Pr. 3
Hz
Reverse
rotation
Forward
rotation
Содержание FR-A700 EC
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Страница 24: ...Description of the Case Product Checking and Part Identification 1 4 ...
Страница 38: ...Enclosure design Installation 2 14 ...
Страница 774: ...Specifications FR A 740 01800 to 12120 Appendix A 4 ...
Страница 820: ...Parameter list with instruction codes Appendix A 50 ...
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