Lenze i510 - Frequency Limits and Ramp Times

6.5 Frequency limits and ramp mes
The frequency range can be limited by seng a minimum and maximum frequency. For the
frequency setpoint, two dierent r
amps can be parameterised. Change-over to ramp 2 can be
carried out manually or automacally.
Details
•
The acceleraon me set refers to the acceleraon from standsll to the maximum fre-
quency set. In the case of a lower setpoint selecon, the actual acceleraon me is reduced
accordingly.
•
The deceleraon me set refers to the deceleraon from the maximum frequency set to
standsll. In the case of a lower actual frequency, the actual deceleraon me is reduced
accordingly.
•
Change-over to the acceleraon and deceleraon me set for ramp 2 is eected automa-
cally if
•
"Motor potenometer" funcon is acve, or
•
frequency setpoint (absolute value) > auto-change-over threshold 0x291B (PAR 224).
•
With the "Acvate ramp 2" funcon, acceleraon me 2 and deceleraon me 2 can be
acvated manually. 4Acvang ramp 2 manually ^ 204
Parameter Name / value range / [default seng] Info
0x2915
(PAR 210)
Minimum frequency
(Min. frequency)
0.0 ... [0.0] ... 599.0
Hz
Lower limit value for all frequency setpoints.
0x2916
(PAR 211)
Maximum frequency
(Max. frequency)
0.0 ... [50.0] ... 599.0 Hz
Upper limit value for all frequency setpoints.
0x2917
(PAR 220)
Acceleraon me 1
(Acceleraon me 1)
0.0 ... [5.0] ... 3600.0 s
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.
0x2918
(PAR 221)
Deceleraon me 1
(Deceleraon me 1)
0.0 ... [5.0] ... 3600.0 s
The deceleraon me set refers to the deceleraon from the maximum
frequency set to standsll. In the case of a lower actual frequency, the
actual deceleraon me is reduced accordingly.
0x2919
(PAR 222)
Acceleraon me 2
(Acceleraon me 2)
0.0 ... [5.0] ... 3600.0 s
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.
Acceleraon me 2 is acve if
•
"Motor potenometer" funcon is acve, or
•
frequency setpoint (absolute value) > auto-change-over threshold
0x291B (PAR 224), or
•
the trigger assigned in 0x2631:039 (PAR 400/039) of the "Acvate
ramp 2" funcon is TRUE.
0x291A
(PAR 223)
Deceleraon me 2
(Deceleraon me 2)
0.0 ... [5.0] ... 3600.0 s
The deceleraon me set refers to the deceleraon from the maximum
frequency set to standsll. In the case of a lower actual frequency, the
actual deceleraon me is reduced accordingly.
Deceleraon me 2 is acve if
•
"Motor potenometer" funcon is acve, or
•
frequency setpoint (absolute value) > auto-change-over threshold
0x291B (PAR 224), or
•
the trigger assigned in 0x2631:039 (PAR 400/039) of the "Acvate
ramp 2" funcon is TRUE.
0x291B
(PAR 224)
Auto-changeover threshold of ramp 2
(Switch ramp)
0.0 ... [0.0] ... 599.0 Hz
Threshold for the automac change-over to acceleraon me 2 and
deceleraon me 2.
•
A change-over is eected if the frequency setpoint (absolute value) >
auto-changeover threshold.
•
With the seng 0, the automac change-over funcon is deacvated.
Basic seng
Frequency limits and ramp mes
73
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