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Set V/F pattern
Pr. 14 = 3
Pr. 14 = 2
For vertical lift loads
For vertical lift loads
At forward rotation boost...Pr. 0 (Pr. 46)
At forward rotation boost...0%
At reverse rotation boost...Pr. 0 (Pr. 46)
setting
At reverse rotation boost...0%
100%
100%
Forward
rotation
Reverse
Pr. 0
Pr. 0
Pr. 46
rotation
Pr. 46
Base frequency
Output frequency (Hz)
REMARKS
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.
When the RT signal is on, the other second functions are also valid.
NOTE
Load pattern selection does not function under General-purpose magnetic flux vector control.
Changing the terminal assignment using Pr. 178 to Pr. 182 (input terminal function selection) may affect the other
functions. Make setting after confirming the function of each terminal.
Parameters referred to
Pr. 0, Pr. 46 (Torque boost)
Refer to page 73
Pr. 3 Base frequency
Refer to page 85
Pr. 178 to Pr. 182 (input terminal function selection)
General-purpose magnetic flux vector control
88
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(3)
Constant-torque
(setting "2, 3")
Set "2" when a vertical lift load is fixed as power
driving
load
setting
regenerative load at reverse rotation.
Pr. 0 Torque boost is valid during forward rotation
Reverse
and torque boost is automatically changed to
rotation
"0%" during reverse rotation. Pr. 46 Second
Forward
torque boost is valid when the RT signal turns
rotation
on.
Base frequency
Set "3" for an elevated load that is in the driving
Output frequency (Hz)
mode during reverse rotation and in the
regenerative load mode during forward rotation
according to the load weight, e.g. counterweight
system.
For the RT signal, set "3" in any of Pr. 178 to Pr.
182 (input terminal function selection) to assign
the function.
Refer to page 113
Refer to page 75
load
application
at
forward
rotation
and
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