4-160
Stall prevention level can be set by 08-02, see table 4.3.34。
Table 4.3.34 Stall prevention level
Inverter model 08-02 default value
200V class 385VDC
400V class 770VDC
Please refer fig.4.3.69 for stall prevention during deceleration.
When external braking function is starting (braking resistor or braking module), stall prevention
during deceleration function (08-00 to xx1xb) is disabled.
Figure 4.3.69 Stall prevention selection in deceleration
Stall prevention selection during run (08-00=x0xxb)
(1) This function prevents the motor from stalling by automatically reducing the output
frequency during run.
(2) If the inverter output current rises above the level set in parameter 08-03 for the time specified
in parameter 08-22, the inverter output frequency is automatically decreased following
deceleration time 1 (00-15) or deceleration time 2 (00-17).
(3) When the inverter output current falls below the level set in parameter (08-03) minus 2%,
normal operation continues and the output frequency increases to the frequency reference
using the acceleration time 1 or acceleration time 2. Refer to the following figure 4.3.70.
Figure 4.3.70 Stall prevention selection during operation
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