6-101
Parameter Display name Setting Units Default
Valid access levels
*2
number
range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
L3-01
StallP Accel Sel
0 to 2 --- 1 Basic or Advanced N.A.
Note 1. This parameter cannot be changed during operation.
Note 2. N.A. = Not applicable.
Setting Function
0 Disabled. (Accelerate according to the settings. Stalls may occur with large loads.)
1 Enabled. (Stop acceleration if L3-02 setting is exceeded. Accelerate again when current recovers.)
2 Intelligent. (Adjust acceleration so that the L3-02 isn’t exceeded by much. Ignore the acceleration
time setting.)
• When
setting 1 (enabled) is selected, acceleration is stopped if the motor current exceeds the accel
-
eration stall prevention level. Acceleration is started again when the current falls below this level.
• When
setting 2 (intelligent) is selected, acceleration is performed using the the acceleration stall pre
-
vention level as a basis. In this case, the acceleration time is ignored.
Parameter Display name Setting Units Default
Valid access levels
*2
number
range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
L3-02
StallP Accel Lvl
0 to 200 % 150 Basic or Advanced N.A.
Note 1. This parameter cannot be changed during operation.
Note 2. N.A. = Not applicable.
• This setting is valid when L3-01 is set to 1 or 2.
• There is normally no need to change this setting.
• Decrease
this setting when the motor
’
s capacity
is small compared to the Inverter
’
s capacity or stalling
occurs
when the motor is operated with the default setting. The standard target setting is 2
to 3 times
the
motor
’
s rated current. (Set this current value as a percentage of the Inverter
’
s rated current, i.e.,
100% corresponds to the Inverter’s rated current.)
Acceleration Stall Prevention Example: L3-01 = 1
Output current
Output frequency
L3-02 (Acceleration stall prevention level)
The output frequency is controlled
to prevent stalling.
Time
Time
Parameter Display name Setting Units Default
Valid access levels
*3
number
range setting
*2
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
L3-03
StallP CHP Lvl
0 to 100 % 50 Advanced N.A.
Advanced Operation Chapter
6
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