YASKAWA CIMR-G7U Technical Manual page 239

Time Chart
The following figure shows the frequency characteristics when L3-01 is set to 1.
Output current
Stall level during
acceleration
Output frequency
Fig 6.21 Time Chart for Stall Prevention During Acceleration
Setting Precautions
If the motor capacity is small compared to the Drive capacity, or if the motor is operated using the factory
•
settings, resulting in the motor stalling, lower the set value of L3-02.
If using the motor in the constant output range, L3-02 will be automatically lowered to prevent stalling.
•
L3-03 is the limit value to prevent the stall prevention level in the constant output range from being
reduced more than necessary.
Set the parameters as a percent taking the drive rated voltage to be 100%.
•
Stall prevention level during
acceleration
Fig 6.22 Stall Prevention Level and Limit During Acceleration
Output frequency is controlled
to prevent the motor stalling.
E1-06
Base Frequency (FA)
Acceleration and Deceleration Characteristics
Time
Time
L3-02 (Stall Prevention Level during Accelera-
tion)
L3-02 x L3-03 (Stall Prevention Limit during Ac-
celeration)
Output frequency
21
6-