Yaskawa VS-616G5 Series Revision F Programming Manual Manual de usuario descargar pdf (Pagina 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

1 2 ... 103 104 105 106 107 108 109 110 111 112 113 ... 161 162

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Yaskawa VS-616G5 Series Revision F Programming Manual Manual de usuario Pagina 108