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CHAPTER 6 - DETAILED PARAMETER DESCRIPTION
Range
[Factory Setting]
Parameter Description / Notes
Prevents motor stalling during an overload. If motor load
increases its current will increase too. If the motor
current attempts to exceed the value set at P169, the
motor speed will be decreased by following the
deceleration ramp until the current becomes lower than
P169. As soon as the overload condition disappears,
the motor speed is resumed.
P169
(2)
0.2 x I
nom
to2.0x I
nom
Maximum Output [ 1.5 x P295 ]
Current 0.1 A
Figure 6.14 - Curves showing the operation of the current
limitation
Time
during
continuous
duty
Time
Motor Current
Deceleration ramp (P101/P103)
during
deceleration
during
acceleration
Acceleration
ramp
(P100/P102)
Speed
P169
The "current limiting" function disabled when setting
P169 > 1.5 x P295.
decel.
through
ramp
accel.
through
ramp
decel.
through
ramp
accel.
through
ramp
Defines the inverter control mode.
P202
(1)
0 to 1
Type of Control [ 0 - V/F linear ]
-
6.3.3 Configuration Parameters - P200 to P398
P202
0
1
Type of Control
Linear V/F Control (scalar)
Quadratic V/F Control (scalar)
Table 6.5 - P202 setting for each control type
As shown in table above, there are 2 V/F control
modes:
- Linear V/F control: this control mode ensures a flux
in the motor air gap approximately constant from
around 3 Hz up to the field weakening (defined by
the parameters P142 and P145).
Thus in this speed range, an approximately constant
torque capacity is obtained. This control mode is
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