IMO SD1 Series - Page 59

SD1 Series Inverters Function Parameters
-54-
Function
code
Name Description Default Modify
channel set by P00.06 or the voltage reference
channel set by P04.27
to change the feature of
the curve.
Note: V
b
in the below picture is the motor rated
voltage and f
b
is the motor rated frequency.
Output voltage
Output frequency
Linear type
Square type
Torque step-down V/F curve (1.3 order)
Torque step-down V/F curve (1.7 order)
Torque step-down V/F curve (2.0 order)
P04.01
Torque boost
Torque boost to the output voltage for the
features of low frequency torque. P04.01
is for
the max. output voltage V
b
.
P04.02
defines the percentage of closing
frequency of manual torque to f
b
.
Torque boost should be selected according to
the load. The bigger the load is, the bigger the
torque is. Too big torque boost is inappropriate
because the motor will run with over magnetic,
and the current of the inverter
will increase to
add the temperature of the inverter and decrease
the efficiency.
When the torque boost is set to 0.0%, the
inverter is automatic torque boost.
Torque boost threshold: below this frequency
point, the
torque boost is valid, but over this
frequency point, the torque boost is invalid.
Output voltage
Output
frequency
Cut-off
boost
b
f
f
v
v
Setting range of P04.01: 0.0%: (automatic)
0.0%
○
P04.02
Torque boost
end
20.0% ○