Commissioning – Lenze 8200 Frequency inverters User Manual
Page 109
Commissioning
8200SHB0199
5-4
5.3.2
Setting of acceleration and deceleration times (T
ir
, T
if
)
Code
Name
Possible settings
IMPORTANT
Lenze
Choice
Info
C012 Acceleration time
Variant “Standard”
820X
5.00
0.00
{0.05 s}
999.00 T
ir
821X/822X/
824X
5.00
0.00
{0.02 s}
999.00
C013 Deceleration time
Variant “Standard”
820X
5.00
0.00
{0.05 s}
999.00 T
ir
821X/822X/
824X
5.00
0.00
{0.02 s}
999.00
C012 Acceleration time
5.00
0.00
{0.02 s}
1300.00 T
ir
Variant “HVAC”
C013 Deceleration time
5.00
0.00
{0.02 s}
1300.00 T
if
Variant “HVAC”
Function
The acceleration and deceleration times determine the controller response after 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 desired for the change between f
d1
and f
d2
.
7
LU
W
LU
ô
I
GPD[
I
G
Å I
G
7
LI
W
LI
ô
I
GPD[
I
G
Å I
G
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 cases, the
acceleration and deceleration times should be set such that the drive can follow the speed profile
without reaching I
max
of the controller.
f /Hz
d
f
dmax
d2
f
fd1
0
tir
tif
Tir
Tif
t
FIG 5-1
Acceleration and deceleration times
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