11.9 L: Protection Functions
958 YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
Figure 11.136 Current Limit Acceleration
■ L3-02: Stall Prevent Level during Accel
No.
(Hex.)
Name Description
Default
(Range)
L3-02
(0490)
Stall Prevent Level
during Accel
Sets the output current level to start Stall Prevention during acceleration as a
percentage of the drive rated output current.
Determined by C6-01
and L8-38
(0 - 150%)
Note:
• If you use a motor that is small compared to the drive and the motor stalls, decrease the setting value.
• When you operate the motor in the constant power range, set L3-03 [Stall Prevent Limit during Accel].
■ L3-03: Stall Prevent Limit during Accel
No.
(Hex.)
Name Description
Default
(Range)
L3-03
(0491)
Stall Prevent Limit
during Accel
Sets the lower limit for the stall prevention level during acceleration used
for constant output ranges as a percentage of the drive rated output current.
50%
(0 - 100%)
The stall prevention level set in L3-02 [Stall Prevent Level during Accel] is automatically reduced when the motor
is running within the constant output range. Parameter L3-03 is the limit value used to prevent the stall prevention
level during constant output ranges to fall below the minimum required level.
Note:
The function to automatically reduce the stall prevention level does not operate when L3-01 = 3 [Stall Prevention during Accel =
Current Limit Method].
Figure 11.137 Stall Prevent Level during Accel/Limit
■ L3-04: Stall Prevention during Decel
No.
(Hex.)
Name Description
Default
(Range)
L3-04
(0492)
Stall Prevention
during Decel
Sets the method that the drive will use to prevent overvoltage faults when
decelerating.
1
(Determined by A1-
02)
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