Lenze i550

7.1.2 Ramp mes
The frequency setpoint is internally guided via a ramp generator. The acceleraon me and
the deceleraon me are independently adjustable.
Details
•
The acceleraon me set in 0x2917 (P220.00) refers to an acceleraon from standsll to
the maximum frequency set in 0x2916 (P211.00). At a low setpoint selecon, the real
acceleraon me decreases accordingly.
•
The deceleraon me set in 0x2918 (P221.00) refers to the deceleraon of the set maxi-
mum frequency to standsll. In case of a lower actual frequency, the actual deceleraon
me is reduced accordingly.
0 Hz
30 Hz
10 Hz
20 Hz
40 Hz
50 Hz
60 Hz
t
0 Hz
30 Hz
10 Hz
20 Hz
40 Hz
50 Hz
60 Hz
t
0x2918
0x2916
0x2917
0x2DDD
Output signals
Output frequency
Input signals
Frequency setpoint selection
Parameter
Address Name / seng range / [default seng] Info
0x2917
(P220.00)
Acceleraon me 1
(Accelerat.me 1)
0.0 ... [5.0] ... 3600.0 s
Acceleraon me 1 for the operang mode "MS: Velocity mode".
•
The acceleraon me set refers to the acceleraon from standsll to
the maximum frequency set. In the case of a lower setpoint selecon,
the actual acceleraon me is reduced accordingly.
•
Seng is not eecve in the operang mode 0x6060 (P301.00) =
"CiA: Velocity mode [2]".
0x2918
(P221.00)
Deceleraon me 1
(Decelerat.me 1)
0.0 ... [5.0] ... 3600.0 s
Deceleraon me 1 for the operang mode "MS: Velocity mode".
•
The deceleraon me set refers to the deceleraon from the maxi-
mum frequency set to standsll. In the case of a lower actual fre-
quency, the actual deceleraon me is reduced accordingly.
•
Seng is not eecve in the operang mode 0x6060 (P301.00) =
"CiA: Velocity mode [2]".
0x291C
(P225.00)
Quick stop deceleraon me
(QSP dec. me)
0.0 ... [1.0] ... 3600.0 s
Quick stop deceleraon me for the operang mode "MS: Velocity
mode".
•
If the "Quick stop" funcon is acvated, the motor is brought to a
standsll within the deceleraon me set here.
•
The deceleraon me set refers to the deceleraon from the maxi-
mum frequency set to standsll. In the case of a lower actual fre-
quency, the actual deceleraon me is reduced accordingly.
•
Seng is not eecve in the operang mode 0x6060 (P301.00) =
"CiA: Velocity mode [2]".
4Example: Quick stop ^ 72
0x291E:001
(P226.01)
S-Ramp characterisc: Smoothing factor
(S-ramp char.: Smoothing factor)
0.0 ... [0.0] ... 100.0 %
Factor for S-rounding of the acceleraon/deceleraon ramps.
•
With the seng "0.0", the S-rounding is deacvated and acceleraon/
deceleraon with linear ramps is carried out.
•
The smoothing factor increases the ramp me as follows:
50 % --> 1.5 x congured ramp me
100 % --> 2 x congured ramp me
Conguring the frequency control
Basic seng
Ramp mes
84