4-158
Group 08 Protection Parameters
08- 00 Stall prevention function
Range
【xxx0b】：Stall prevention function is enabled during acceleration.
【xxx1b】：Stall prevention function is disabled during acceleration.
【xx0xb】：Stall prevention function is enabled during deceleration.
【xx1xb】：Stall prevention function is disabled during deceleration.
【x0xxb】：Stall prevention function is enabled during operation.
【x1xxb】：Stall prevention function is disabled during run.
【0xxxb】：Stall prevention function during run is based on the first
acceleration time.
【1xxxb】：Stall prevention function during run is based on the second
acceleration time.
08- 01 Stall prevention level during acceleration
Range 【20~200】%
08- 02 Stall prevention level during deceleration
Range
200V :【330V~410V】
400V :【660V~820V】
08- 03 Stall prevention level during run
Range 【30~200】%
08-21 Limit of stall prevention during acceleration
Range 【1~100】%
08-22 Stall prevention detection time during run
Range 【2~100】mSec
08- 40 Motor 2 Acceleration Stall Prevention Level
Range 【20~200】%
08-41 Motor 2 Acceleration Stall Prevention Limit
Range 【1~100】%
Note：Stall prevention function only can be set in V/F control mode.
Stall prevention during acceleration (08-00=xxx0b)
(1) Prevents the inverter from faulting (Overcurrent, Motor overload, Inverter overload) when
accelerating with heavy loads.
(2) When the inverter output current reaches the level set in parameter 08-01 minus 15% the
acceleration rate starts to decrease. When the inverter output current reaches the level set in
parameter 08-01 the motor stops accelerating.
(3) Reduce stall prevention level during acceleration (08-01) in case the motor stalls (when the
motor power is smaller than the inverter rating.
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