Lenze 8200 Frequency inverters Manual de usuario Pagina 153

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Configuration
8200SHB01997-16
7.5.2 Acceleration and deceleration times T
ir
,T
if
Code Name
Possible settings
IMPORTANT
Lenze Choice Info
C012 Acceleration time T
ir
820X 5.00 0.00 {0.05 s} 999.00
821X/822X/
824X
5.00 0.00 {0.02 s} 999.00
0.00 {0.02 s} 1300.00 HVAC only
C013 Deceleration time T
if
820X 5.00 0.00 {0.05 s} 999.00
821X/822X/
824X
5.00 0.00 {0.02 s} 999.00
0.00 {0.02 s} 1300.00 HVAC only
Function The acceleration and deceleration times determine the controller response after a setpoint change.
Adjustment
The accelerationanddeceleration timesrefer to a change of the field frequencyfrom0 Hz tothe
max. field frequency set under C011.
Calculate the times T
ir
and T
if
, which must be set under C012 and C013.
-t
ir
and t
if
are the timesdesiredforthe change betweenf
d1
and f
d2
:
7
W ô
I
I I
7 W ô
I
I I
Important Under unfavourable operatingconditions, tooshort acceleration and deceleration times canleadto
the deactivation of the controller with the indication of TRIP OC5. In these cases, the acceleration
and decelerationtimes shouldbe short enoughthat the drive canfollowthe speed profile without
reaching I
max
of the controller.
Special features
820X The slope isadjustable between0.095 Hz/s and 780 Hz/s.
f /Hz
d
f
dmax
d2
f
f
d1
0
t
ir
t
if
T
ir
T
if
t
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