4-135
. Refer to Figure 4.3.69 for stall prevention in deceleration
. When the braking (braking resistance or braking module) is started, set 08-00 =
xx1xb (invalid).
Figure 4.3.69 Stall prevention selection in deceleration
Stall prevention selection in operation (08-00=x0xxb)
In operation, the stall prevention is valid only in V / F control mode with or without PG.
. This function prevents motor stall by automatically reducing the output frequency.
. If the inverter output current exceeds the set time of 08-22 and the set level of 08-03,
the inverter output frequency will decelerate according to the deceleration time 1 (00-15)
or deceleration time 2 (00-17). When the inverter output current drops down to the level
(08-03) -2% or less, the output frequency will accelerate. Refer to the following figure
4.3.70.
08-22 (detection time)
Output
Frequency
Tdec1 (00-15)
T
dec2 (00-17)
t
2%
(Hysteresis)
08-03
Inverter
Output Current
Load
t
t
Figure 4.3.70 Stall prevention selection in operation
Note- The stall prevention level in operation can be set by multi-function analog input AI2(04-05=7).
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