LiteOn EVO 6800 Series - Page 179

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Output frequency
Time
Set deceleration time
Deceleration characteristics
when Stall Prevention is
triggered during deceleration
Figure 6.81 Stall Prevention during Deceleration Operation
 P3-04 Stall Prevention Level during Deceleration
Sets the voltage level to activate the Stall Prevention function during deceleration.
No.
Name
Setting Range
Default
P3-04
Stall Prevention Level during Deceleration
330V to 410V
<1>
395V <1>
When the regenerative power boosts the main circuit DC voltage higher than the value set to
this parameter during deceleration, the drive performs Stall Prevention during deceleration to
prevent an oV (Overvoltage) fault. Lower this value if the load is too heavy which causes a rapid
regenerative power increase.
<1> This value is for a 200 V AC drive. Double this value for a 400 V AC drive.
 P3-05 Stall Prevention during Run
Stall Prevention during run prevents an oL1 (Motor Overload) fault when the motor is running
at constant speed.
No.
Name
Setting Range
Default
P3-05
Stall Prevention during Run
0 to 2
1
Note:
1. Available in Open-Loop V/F Control, Closed-Loop V/F Control and PM Open-Loop Vector Control control
methods.
2. Disable when the output frequency is below 6 Hz regardless the P3-05 and P3-06 settings.
0 : Disabled
The drive runs at the set frequency command. A heavy load might cause the motor too stall
and triggered an oC (Overcurrent) or oL1 (Motor Overload) to stop the motor.
1 : Enabled (Deceleration Time 1)