4-133
08-- Protection Function Group
08- 00
Stall prevention function.
Range
【xxx0b】:
Stall prevention function is valid in acceleration.
【xxx1b】:
Stall prevention function is invalid in acceleration.
【xx0xb】:
Stall prevention function is valid in deceleration.
【xx1xb】:
Stall prevention function is invalid in deceleration.
【x0xxb】:
Stall prevention function is valid in operation.
【x1xxb】:
Stall prevention function is invalid in operation.
【0xxxb】: Stall prevention function in operation is based on the first acceleration time.
【1xxxb】:
Stall prevention function in operation is based on the second acceleration
time.
08- 01
Stall prevention level in acceleration
Range
【
30~200】%
08- 02
Stall prevention level in deceleration
Range
【
330~410】V : 220V
【
660~820】V : 440V
08- 03
Stall prevention level in operation
Range
【
30~200】%
08-21
Limit of stall prevention in acceleration
Range
【
0~100】%
08-22
Stall prevention detection time in operation
Range
【
2~100】mSec
Stall prevention in acceleration (08-00=xxx0b)
Stall prevention is used to prevent, during the acceleration function is acting, the
generation of over high current due to the high motor load or the demand for rapid
acceleration.
. When the stall prevention function (08-00 = xxx0b) is started in the period of
acceleration, and the output current of the inverter exceeds -15% of 08-01， the
acceleration rate begins to decrease. When it reaches the set value of 08-01, the motor
stops
. When the motor capacity is smaller than the inverter capacity, if the motor stalls, you
can reduce the 08-01 settings.
. The inverter rated output current should be set to 100% level.
. Refer to the figure 4.3.67 for stall prevention in acceleration.
Fig. 4.3.67 Stall prevention in acceleration
. If the motor is used in the constant power (CH) region, the stall prevention level
(08-01) will be automatically reduced to prevent the stall.
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