Omron SYSDRIVE 3G3RV, User Manual, Page: 239 / 446

Acceleration and Deceleration Characteristics
6-
23
K K K K
Preventing the Motor from Stalling During Acceleration (Stall Prevention
During Acceleration Function)
The
Stall Prevention During Acceleration function prevents the motor from stalling if a heavy load is placed
on
the motor, or sudden rapid acceleration is performed.
If
you set L3-01 to 1 (enabled) and the Inverter output current exceeds the -15% level of the set value in L3-
02,
the acceleration rate will begin to slow down. When L3-02 is exceeded, acceleration will stop.
If
you set L3-01 to 2 (optimum adjustment), the motor current accelerates to the value set in L3-02. With this
setting,
the acceleration time setting is ignored.
n
Related Parameters
* Shows
the initial value when C6-01 is set to 1. If C6-01 is set to 0, the initial value is 150%.
Param-
eter
Num-
ber
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
V/f
V/f
with
PG
Open
Loop
Vec-
tor
LCD Display
L3-01
Stall
prevention selection
during
acceleration
0:
Disabled (Accelerates according to the setting.
Motor
may stall if the load is too great.)
1:
Enabled (Acceleration stops when the level set
in
L3-02 is exceeded. Acceleration restarts
using
current value recovery.)
2:
Optimum adjustment (Adjusts acceleration
using
the level set in L3-02 as the standard.
The
acceleration time setting is ignored.)
0
to 2
1 No A A A
StallP
Accel Sel
L3-02
Stall
prevention level dur-
ing
acceleration
Set
as a percent taking the Inverter rated voltage to
be
100%.
Normally,
it is not necessary to change this setting.
Lower
the set value if the motor stalls using the
factory
setting.
0
to 200
120%* No A A A
StallP
Accel Lvl
L3-03
Stall
prevention limit dur-
ing
acceleration
If
using the motor at a frequency higher than the
setting
in E1-06, set the lower limit of the stall pre-
vention
level during acceleration as a percent, tak-
ing
the Inverter rated current to be 100%.
Normally,
it is not necessary to change this setting.
0
to 100
50% No A A A
StallP
CHP Lvl