Commissioning
5-6 820XBA1097
5.3.2 Adjustment of acceleration and deceleration
times (T
ir
,T
if
)
Code Name Possible settings IMPORTANT
Lenze Selection Info
C012 Acceleration time 5.0 0.0 {0.1s} 999.0 T
ir
C013 Deceleration time 5.0 0.0 {0.1s} 999.0 T
if
Function The accleration and deceleration times determine the time required by the drive to
follow a setpoint change.
Adjustment
-
The acceleration and deceleration times refer to a change of the field frequency
from 0 Hz to the 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 times required for the change between f
d1
and f
d2
:
T
ir
t
ir
ô
f
dmax
f
d2
f
d1
T
if
t
if
ô
f
dmax
f
d2
f
d1
Important Under unfavourable operating conditions, too short acceleration and deceleration
times can lead to the deactivation of the controller under overload with the indication
of TRIP OC5. In these events, the acceleration and deceleration times should be set
short enough so that the drive can follow the speed profile without reaching I
max
of the
controller.
Special features
Theslope can be set between 0.095Hz/s and 780Hz/s.
f /Hz
d
f
dmax
d2
f
f
d1
0
t
ir
t
if
T
ir
T
if
t
K35.0063
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