IMPULSE
®
•G+ & VG+ Series 4 Technical Manual
November 2020
Page 168
5.7.3 Stall Prevention
Table 5-88: Stall Prevention Parameter Settings
Parameter Display Function Range Default
L03-01 StallP Accel Sel Sets how the Stall Prevention will function during
acceleration. (G+ only)
0–2 1
0 Disabled
1 General Purpose Acceleration is paused as long as the current is above
the L03-02 setting.
2 Intelligent Accelerate in the shortest possible time without
exceeding the L03-02 level.
L03-02 StallP Accel Lvl Sets the output current level at which the Stall
Prevention during acceleration is activated. (G+ only)
0–150% *
L03-03 StallPAcc LowLim Sets Stall Prevention lower limit during acceleration
when operating in the constant power range. Set as a
percentage of VFD rated current. (G+ only)
0–100% 50
L03-05 StallP Run Sel Sets the control for the stall prevention during run.
(G+ only)
0–2 1
0 Disabled VFD runs at a set frequency. A heavy load may cause
speed loss.
1 Decel Time 1 Uses the deceleration time set to C01-02 while Stall
Prevention is performed.
2 Decel Time 2 Uses the deceleration time set to C01-04 while Stall
Prevention is performed.
L03-06 StallP Run Level Sets the current level to trigger Stall Prevention during
run. Depending on L03-23, the level is automatically
reduced in the constant power range (speed beyond
base speed). (G+ only)
Enabled when L03-05 is set to 1 or 2.
30–150% *
L03-11 OV Inhibit Sel Enables or disables the OV suppression function,
which allows the VFD to change the output frequency
as the load changes to prevent an OV fault.
0, 1 0
0 Disabled
1 Enabled
L03-17 DC Bus Reg Level Sets the desired value for the DC bus voltage during
overvoltage suppression and Stall Prevention during
deceleration.
230 V: 150–
400 VDC
460 V: 300–
800 VDC
575 V: 431–
1150 VDC
230 V:
375 V
460 V:
750 V
575 V:
930 V
L03-20 DC Bus P Gain Sets the proportional gain for KEB Ride-Thru, Stall
Prevention, and overvoltage suppression.
0.00–5.00 A01-02
L03-21 Acc/Dec P Gain Sets the proportional gain used to calculate the
deceleration rate during KEB Ride-Thru, OV
suppression function, and Stall Prevention during
deceleration.
0.10–10.00 sec A01-02
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