YASKAWA V1000 Series Installation & Start-Up Manual page 352

B.2 Parameter Table
No. Name
Stall Prevention
L3-04 Selection during
Deceleration
Stall Prevention
L3-05
Selection during Run
Stall Prevention Level
L3-06
during Run
352
When using a braking resistor, use setting "0".
Setting "3" is used in specific applications.
0: Disabled - The drive decelerates at the active
deceleration rate. If the load is too large or the
deceleration time is too short, an OV fault may
occur.
1: General Purpose - The drive decelerates at
the active deceleration rate, but if the main
circuit DC bus voltage reaches the stall
prevention level (380/760 VDC), deceleration
will stop. Deceleration will continue once the
DC bus level drops below the stall prevention
level.
2: Intelligent - The active deceleration rate is
ignored and the drive decelerates as fast as
possible without hitting OV fault level.
Range: C1-02 / 10.
3: Stall Prevention with Braking Resistor -
Stall prevention during deceleration is enabled
in coordination with dynamic braking.
4: Overexcitation Deceleration - Decelerates
with the flux level determined by n3-13
(Overexcitation Gain).
Selects the stall prevention method to use to
prevent drive faults during run.
0: Disabled - Drive runs a set frequency. A
heavy load may cause the drive to trip on an
OC or OL fault.
1: Decel Time 1 - The drive will decelerate at
Decel Time 1 (C1-02) if the output current
exceeds the level set by L3-06. Once the
current level drops below the L3-06 level, the
drive will accelerate back to its frequency
reference at the active acceleration rate.
2: Decel Time 2 - Same as setting 1 except the
drive decelerates at Decel Time 2 (C1-04).
When output frequency is 6 Hz or less, stall
prevention during run is disabled regardless of
the setting in L3-05.
Enabled when L3-05 is set to "1" or "2". 100%
is equal to the drive rated current.Decrease the
set value if stalling or excessive current occurs
with the default settings.
YASKAWA ELECTRIC TOEP C710606 09B YASKAWA AC Drive V1000 Installation & Start-Up Manual
Description
Control
Mode
Range Def.
O
V/ P
L
f M
V
0 to 4
1 S S S
<50>
A − A 493
0 to 2 1
30 to
A − A 494
<7>
200
Addr. Pg.
Hex
492 352
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