6-23
6
îš„Applying an Output Speed Dwell
The dwell function at start is applied when the speed level set in parameter b6-01 is reached. The dwell speed
is kept for the time set in parameter b6-02. The dwell function at stop is applied when the speed reaches the
level set in parameter b6-03. The dwell speed is kept for the time set in parameter b6-04. The setting is shown
in Fig 6.7.
Fig 6.7 Output Frequency Dwell Settings
îš‹ Stall Prevention During Acceleration
The Stall Prevention During Acceleration function prevents the motor from stalling if the load is too heavy.
If L3-01 is set to 1 (enabled) and the Inverter output current reaches 85% of the set value in L3-02, the accel-
eration rate will begin to slow down. When L3-02 is exceeded, the acceleration will stop.
If L3-01 is set to 2 (optimal adjustment), the motor accelerates so that the current is held at the level set in L3-
02. With this setting, the acceleration time setting is ignored.
îš„Related Parameters
Parameter
No.
Name
Factory
Setting
Change
during
Operation
Control Methods
V/f
Open
Loop
Vector
Closed
Loop
Vector
Closed
Loop
Vector
(PM)
L3-01 Stall prevention selection during acceleration 1 No A A - -
L3-02 Stall prevention level during acceleration 150% No A A - -
Run command
Output frequency
Time
ON
b6-03
OFF
b6-01
b6-04
b6-02
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