Setting Acceleration And Deceleration Times; Acc/Dec Time Based On Maximum Frequency - LSIS LSLV-S100 Operation Manual

Learning Basic Features

4.10 Setting Acceleration and Deceleration Times

4.10.1 Acc/Dec Time Based on Maximum Frequency

Acc/Dec time values can be set based on maximum frequency, not on inverter operation
frequency. To set Acc/Dec time values based on maximum frequency, set bA. 08 (Acc/Dec
reference) in the Basic group to 0 (Max Freq).
Acceleration time set at the ACC (Acceleration time) code in the Operation group (dr.03 in an LCD
keypad) refers to the time required for the inverter to reach the maximum frequency from a
stopped (0Hz) state. Likewise, the value set at the dEC (deceleration time) code in the Operation
group (dr.04 in an LCD keypad) refers to the time required to return to a stopped state (0Hz) from
the maximum frequency.
Group Code Name
ACC Acceleration time
dEC Deceleration time Dec Time
Operation
Maximum
20
frequency
Acc/Dec reference
08
bA frequency
09 Time scale
Acc/Dec Time Based on Maximum Frequency – Setting Details
Code Description
Set the parameter value to 0 (Max Freq) to setup Acc/Dec time based on
maximum frequency.
Configuration
0
bA.08
1
Ramp T Mode
If, for example, maximum frequency is 60.00Hz, the Acc/Dec times are set to 5
seconds, and the frequency reference for operation is set at 30Hz (half of 60Hz),
the time required to reach 30Hz therefore is 2.5 seconds (half of 5 seconds).
88
LCD Display
Acc Time
Max Freq
Ramp T Mode
Time scale
Max Freq
Delta Freq
Parameter Setting Setting Range
20.0 0.0–600.0
30.0 0.0–600.0
60.00 40.00–400.00
0 Max Freq 0–1
1 0.1sec 0–2
Description
Set the Acc/Dec time based on maximum
frequency.
Set the Acc/Dec time based on operating
frequency.
Unit
sec
sec
Hz
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