Yaskawa VS-616G5 Series Revision F Programming Manual User Manual
Page 108
108
VS-616G5 Programming Manual
Section L: Protection Parameters
L3 Stall Prevention / Current Limit
Setting Range:
0 to 200%
Factory Default:
150%
The stall prevention/current limit level during acceleration is set as a percentage of inverter rated cur-
rent. A setting of 200% disables current limit during acceleration. During acceleration, if the output
current exceeds this current limit level (L3-02), acceleration stops and frequency is maintained. When
the output current decreases below this current limit level (L3-02), acceleration restarts.
When a motor is used in the constant output area (constant HP), output frequency
≥
max. voltage out-
put frequency (E1-06). In this area, the stall prevention/current limit level during acceleration is auto-
matically reduced for smoother acceleration. This parameter limits the stall prevention/current limit
level during acceleration in the constant output area so that it does not decrease unnecessarily. The
current limit level during acceleration is changed according to the following equation:
L3-02
Stall Prevention Level During Acceleration
StallP Accel Lvl
B
B
B
−
L3-03
Stall Prevention Limit (constant output area)
StallP CHP Level
A
A
A
−
Motor Current
L3-02
Time
Output Frequency
Time
*
* Controls the acceleration rate to
prevent the inverter from tripping.
Figure 52 Stall Prevention/Current Limit During Acceleration
Current Limit Level During
Accel in Constant Output Area
Current Limit Level During
Acceleration (L3-02)
Max. Voltage Output Frequency (E1-06)
Output Frequency
×
=