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Omron Q2A Series Technical Manual

Omron Q2A Series
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12.8 L: PROTECTION
754 SIEPYEUOQ2A01A AC Drive Q2A Technical Manual
L3-01 StallP Mode@Accel
No.
(Hex.)
Name Description
Default
(Range)
L3-01
(048F)
StallP Mode@Accel
Sets the method of the Stall Prevention During Acceleration.
2
(1 - 4)
Note:
When A1-02 = 5 [Control Method = PM OLVector], the setting range is 0 and 1 .
Stall prevention during acceleration will not let motors stall or stop when the drive detects oC [Overcurrent], oL2
[Drive Overload], or oL1 [Motor Overload] and large loads are applied during acceleration or when setting
sudden acceleration times regarding load inertia.
1 : Disabled
The Stall Prevention function does not operate during acceleration, and acceleration occurs for the set acceleration
time. If the acceleration time is too short, the motor does not fully accelerate during the set time, which causes the
drive to detect oL1 or oL2 and the motor to stop.
2 : General Purpose
Enables the Stall Prevention During Acceleration function. Operation is different for different control methods.
V/f Control, Open Loop Vector Control, or EZ Open Loop Vector Control
When the output current is more than the value set in L3-02 [StallP Level@Accel], the drive stops acceleration.
When the output current is less than the value set in L3-02 - 15%, the drive starts to accelerate again. The Stall
Prevention function level automatically falls for constant output ranges.
Figure 12.127 Stall Prevention During Acceleration when Using Induction Motors
Open Loop Vector Control for PM
When the output current is more than the value set in L3-02, the drive stops acceleration. When the time set in
L3-27 [StallP Detect Time] is expired and the output current is the value set in L3-02 at a minimum, the drive
will start deceleration in as specified by the value set in L3-22 [StallP@Acc Deceleration Time]. When the
output current is less than the value set in L3-02 - 15%, the drive stops deceleration. When the time set in L3-27
is expired, the drive starts acceleration again.

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Omron Q2A Series Specifications

General IconGeneral
BrandOmron
ModelQ2A Series
CategoryController
LanguageEnglish

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