6-24
6
îš„Time Chart
The following figure shows the frequency characteristics when L3-01 is set to 1.
Fig 6.27 Time Chart for Stall Prevention During Acceleration
îš„Setting Precautions
• If the motor capacity is small compared to the Inverter capacity or if the inverter is operated using the fac-
tory settings and the motor stalls, lower the set value of L3-02.
• If using the motor in the constant power 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 power range from being
reduced more than necessary (see Fig 6.28).
• Set the parameters as a percentage taking the inverter rated current to be 100%.
Fig 6.28 Stall Prevention Level and Limit During Acceleration
Output current
Stall level during
acceleration
Time
Time
Output frequency
* 1. The acceleration rate is lowered.
* 2. The acceleration is stopped to reduce the output current.
*1.
*2.
L3-02
85% of L3-02
Stall prevention level during
acceleration
L3-02 (Stall Prevention Level during
Acceleration)
L3-03 (Stall Prevention Limit during
Acceleration)
Output frequency
E1-06
Base Frequency (FA)
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