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Parameter
Number
Stall
Prevention
Level
During
L3-02
Acceleration
StallP
Accel Lvl
Stall
Prevention
Limit
During
L3-03
Acceleration
StallP CHP
Lvl
Stall
Prevention
Selection
During
Deceleration
L3-04
StallP
Decel Sel
-64
5
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Name
Description
Display
This function is enabled when
L3-01 is "1" or "2".
Drive rated current is 100%.
Decrease the set value if
stalling or excessive current
occurs with factory setting.
Sets the lower limit for stall
prevention during acceleration,
as a percentage of the Drive's
rated current, when operation is
in the frequency range above
E1-06 (constant power region).
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 (380/760Vdc),
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 w/o hitting
OV fault level.
Range: C1-02 / 10.
3: Stall Prevention w/ Braking
Resistor - Stall prevention
during deceleration is
enabled in coordination with
dynamic braking.
Control Methods
Change
Setting
Factory
V/f
during
Range
Setting
V/f
with
Operation
PG
0
to
150%
No
A
A
200
0
to
50%
No
A
A
100
*
1
No
Q
Q
0 to 3
Open
Open
MODBUS
Loop
Flux
Loop
Register
Vector
Vector
Vector
1
2
A
No
No
490H
A
No
No
491H
Q
Q
Q
492H
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Table of Contents
Troubleshooting
