YASKAWA HV600 Technical Reference page 326

5.8 L: Protection Functions
If you set the input level for terminals A1 and A2 and L3-06, the drive will use the smaller value for Stall Prevent
Level during Run.
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L3-11: Overvoltage Suppression Select
No.
Name
(Hex.)
L3-11 Overvoltage Suppression
Select
(04C7)
0 : Disabled
The drive does not adjust the regenerative torque limit or the output frequency. If you apply a regenerative load, the
drive can detect an ov [Overvoltage] fault.
1 : Enabled
When a regenerative load increases the DC bus voltage, the drive decreases the regenerative torque limit and
increases the output frequency to prevent ov.
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L3-17: DC Bus Regulation Level
No.
Name
(Hex.)
L3-17 DC Bus Regulation Level
(0462)
Note:
This value is initialized when E1-01 [Input AC Supply Voltage] is changed.
Sets this parameter for any of the following circumstances.
• L3-11 = 1 [OV Suppression Function Select = Enabled].
• L3-04 = 2 [Decel Stall Prevention Selection = Automatic Decel Reduction].
■
L3-20: DC Bus Voltage Adjustment Gain
No.
Name
(Hex.)
L3-20 DC Bus Voltage Adjustment
Gain
(0465)
Expert
Set one of these parameters to enable L3-20:
• L3-04 = 2 [Decel Stall Prevention Selection = Automatic Decel Reduction]
• L3-11 = 1 [Overvoltage Suppression Select = Enabled]
326
Figure 5.74 Stall Prevention Level during Run with Analog Input
Sets the overvoltage suppression function.
Sets the target value for the DC bus voltage when the overvoltage suppression function and the Decel
Stall Prevention function (Intelligent Stall Prevention) are active.
Sets the proportional gain used to control the DC bus voltage.
Description
Description
Description
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
Default
(Range)
0
(0, 1)
Default
(Range)
208/240 V: 375 V,
480 V: 750 V
(208/240 V: 150 - 400 V,
480 V: 300 - 800 V)
Default
(Range)
1.00
(0.00 - 5.00)