LS Industrial Systems SV-iV5 Series - Fun_48(Deceleration Time for Zero Speed Selection); Fun_49(Zero Speed Deceleration Time)

6. Function Description
6-42
z
Calculation 1
Δ
rpm
≥
St1_
Δ
rpm + St2_
Δ
rpm
Δrpm = The difference between the current speed and the target speed
L_time = (
Δ
rpm – St1_
Δ
rpm – St2_
Δ
rpm) * (AccTime / MaxSpeed)
Effective Acceleration Time = St1_time + L_time + St2_time
z
Calculation 2
Δ
rpm
＜
St1_
Δ
rpm + St2_
Δ
rpm
St1’_time =
√
{ [
Δ
rpm * AccTime
2
* St1_time
2
] / [ 25 * MaxSpeed * (St1_time + St2_time) ] }
St2’_time =
√
{ [
Δ
rpm * AccTime
2
* St2_time
2
] / [ 25 * MaxSpeed * (St1_time + St2_time) ] }
Effective Acceleration Time =
St1’_time + St2’_time
Δrpm : Speed difference
MaxSpeed : Maximum speed ( FUN_04 )
AccTime : Set acceleration time (FUN_40, 42, 44, 46)
St1_Δrpm : Acc S Start ST (%) of FUN_36 at the time of acceleration,
Dec S End ST (%) of FUN_39 at the time of deceleration
St2_Δrpm : Acc S End ST (%) of FUN_37 at the time of acceleration,
Dec S Start ST (%) of FUN_38 at the time of deceleration
St1_time : The time when St1_Δrpm is formed.
St2_time : The time when St2_Δrpm is formed.
4) FUN_48 (Deceleration time for zero speed selection)
5) FUN_49 (Zero speed deceleration time)
This is the time when the motor decelerates from the arbitrary speed to 0 rpm in speed. This is valid only when
FUN_48 is set to ‘Yes’. If ‘No’ is set, the set deceleration time is applied.
Code LCD display Description
Setting
range
Unit Factory setting
FUN_48 Use 0 Dec T
Deceleration time selection for
zero speed
No/Yes No
FUN_49 0 Dec Time
Deceleration time
for zero speed
0.00~6000.0 sec 0.00