YASKAWA P1000 Quick Start Manual page 115

Setting 2: Intelligent Stall Prevention
The drive disregards the selected acceleration time and attempts to accelerate in the minimum time. The acceleration rate is
adjusted so the current does not exceed the value set to parameter L3-02.
L3-02: Stall Prevention Level during Acceleration
n
Sets the output current level at which the Stall Prevention during acceleration is activated.
No.
L3-02
<1> The upper limit and default value is determined by parameter L8-38, Carrier Frequency Reduction.
• Lower L3-02 if stalling occurs when using a motor that is relatively small compared to the drive.
• Also set parameter L3-03 when operating the motor in the constant power range.
L3-03: Stall Prevention Limit during Acceleration
n
The Stall Prevention level is automatically reduced when the motor is operated in the constant power range. L3-03 sets the
lower limit for this reduction as a percentage of the drive rated current.
No.
L3-03
Stall Prevention level during Acceleration
YASKAWA ELECTRIC TOEP YAIP1U 01B YASKAWA AC Drive - P1000 Quick Start Guide
Output current
Stall Prevention Level
During Acceleration
L3-02
L3-02
-15%
Output frequency
Controls the output frequency
to prevent the motor from stalling
Figure 4.27 Stall Prevention During Acceleration for Induction Motors
Name
Stall Prevention Level during Acceleration
Name
Stall Prevention Limit during Acceleration
E1-06
Base frequency
Figure 4.28 Stall Prevention Level and Limit During Acceleration
4.6 Basic Drive Setup Adjustments
Time
Time
Setting Range
0 to 150%
Setting Range
0 to 100%
L3-02
L3-03
Output frequency
Default
<1> <1>
Default
50%
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