LSIS LSLV0055H100-4COFN - Speed Search Operation

Learning Advanced Features
236
The inverter finds the optimal energy saving point for the time set at ADV-52 based on the
rated motor current and the voltage output. The Energy saving operation is effective for the
normal duty operations. It does operate when the load level is more than 80% of the rated
motor current.
Group
Code
Name
LCD Display
Setting
Setting Range
Unit
ADV
50
Energy saving
operation
E-Save Mode
2
Auto
0–2
-
52
Energy saving
point search time
E-Save Det T
20.0 (Sec)
0.0–100.0
Sec
If the operation frequency is changed, or acceleration or deceleration is carried out during an
energy saving operation, the actual Acc/Dec time may take longer than the set time due to the
time required to return to general operations from the energy saving operation.
5.27 Speed Search Operation
Speed search operation is used to prevent fault trips that can occur when the inverter
voltage output is disconnected and the motor is idling. Since this feature estimates the
motor rotation speed based on the inverter output current, it does not give the exact speed.
Group
Code
Name
LCD Display
Parameter Setting
Setting Range
Unit
CON
70
Speed search
mode selection
SS Mode
0
Flying Start-1
-
-
71
Speed search
operation selection
Speed
Search
0000
-
bit
72
Speed search
reference current
SS Sup-
Current
90%
50–120
%
73
Speed search
proportional gain
SS P-Gain
100
0–9999
-
74
Speed search
integral gain
SS I-Gain
200
0–9999
-
75
Output block time
before speed
search
SS Block
Time
1.0
0–60
sec