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E-24
5.12 Manual torque boost - Increasing the torque produced at low speeds
Manual torque boost
[Parameter]
Title Function Adjustment range
Default setting
Manual boost
[%]
Model dependent
This parameter is valid when = (V/f constant), (square reduction torque) or
(V/f 5-points setting).
Note 1) Torque boost rate has been set optimally according to the inverter capacity. Do not set the
torque boost rate too high, or the inverter may trip during start-up because of an over-current.
When needs to be changed, be careful not to increase more than +/-2% of the default value.
5.13 Setting the electronic thermal protective function
Selection of electronic thermal protection characteristics
Motor overload protection level #1
Overload reduction start-up frequency
Motor 150%-overload time limit
Parameter setting
Title Function Adjustment range
Default setting
Setting
Kind of
motor
Overload
protection
Overload stall
protect not stall
protect stall
not protect not stall
Standard
motor
not protect stall
protect not stall
protect stall
not protect not stall
Selection of electronic
thermal protection
characteristics
VF motor
(special
motor)
not protect stall
Motor overload protection
level #1
[%]
Function
When the torque produced in low speed ranges is not large enough, it can be
boosted u
p
b
y
increasin
g
the tor
q
ue boost rate with this
p
arameter.
Function
These parameters are used to set the electronic thermal protective function according to
the rating and characteristic of the motor to be controlled.
Base-frequency voltage
Out
p
ut fre
q
uenc
y
[
Hz
]
Base frequency
Out
p
ut volta
g
e
[
]