Lenze ECSES Series - Page 327

Function library
Speed (speed control)
Setpoint processing
12

327
EDBCSXS064 EN 4.0
12.27.2.2 Setting acceleration and deceleration times
The speed setpoint is led via a ramp function generator. This enables input steps to be
converted into a ramp.
The acceleration time (T
ir
) and deceleration time (T
if
) refer to a change in speed from "0"
to n
max
(0 ... 100%). The times to be set are calculated according to the formulae:
Acceleration time (code C0012) Deceleration time (code C0013)
T
ir
+ t
ir
@
100%
w2 * w1
T
if
+ t
if
@
100%
w2 * w1
[%]
w2
100
w1
0
t
ir
t
if
T
ir
T
if
t
RFG-OUT
ECSXASA001
Fig. 12−30 Diagram for acceleration and deceleration time
In C0101/1 ... 15 and C0103/1 ... 15, 15 time pairs (T
i
times) can be stored additionally. Via
the inputs SPEED−NSET.TIx (C7411/13 ... C7411/16) the T
i
times can be activated:
Signal name Source for active time pair
SPEED−NSET.TI8 SPEED−NSET.TI4 SPEED−NSET.TI2 SPEED−NSET.TI1 Acceleration
time
Deceleration
time
000 0 C0012 C0013
0 0 0 1 C0101/1 C0103/1
0 0 1 0 C0101/2 C0103/2
0 0 1 1 C0101/3 C0103/3
0 1 0 0 C0101/4 C0103/4
0 1 0 1 C0101/5 C0103/5
0 1 1 0 C0101/6 C0103/6
0 1 1 1 C0101/7 C0103/7
1 0 0 0 C0101/8 C0103/8
1 0 0 1 C0101/9 C0103/9
1 0 1 0 C0101/10 C0103/10
1 0 1 1 C0101/11 C0103/11
1 1 0 0 C0101/12 C0103/12
1 1 0 1 C0101/13 C0103/13
1 1 1 0 C0101/14 C0103/14
1 1 1 1 C0101/15 C0103/15