Yaskawa G7 Drive - Manual (Page 238)

Acceleration and Deceleration Characteristics
6-
21
„ Time Chart
The following figure shows the frequency characteristics when L3-01 is set to 1.
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%.
Fig 6.22 Stall Prevention Level and Limit During Acceleration
Output current
Stall level during
acceleration
Time
Time
Output frequency
Output frequency is controlled
to prevent the motor stalling.
Stall prevention level during
acceleration
L3-02 (Stall Prevention Level during Accelera-
tion)
L3-02 x L3-03 (Stall Prevention Limit during Ac-
celeration)
Output frequency
E1-06
Base Frequency (FA)