Lenze ECSCSxxx - Manual (Page 351)

Function library
Torque (torque control)
Setpoint processing
12
l
351 EDBCSXS064 EN 4.0
12.28.3 Setpoint processing
12.28.3.1 Selecting the source for the torque setpoint
The "Torque" function block is supplied with the torque setpoint via the input
TORQUE−NSET.NSet (code C7531/2). The valid values are within the decimal range ±32767.
The torque setpoint is conditioned by a ramp function generator and special controllers.
12.28.3.2 Setting acceleration and deceleration times
The torque 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. 12−35 Diagram for acceleration and deceleration time
Code Possible settings IMPORTANT
No. Designation Lenze/
{Appl.} Selection
C0012 TIR (ACC) 0.000 Acceleration time for the
l speed setpoint (for "speed
control")
l torque setpoint (for "torque
control")
^ 327
0.000 {0.001 s} 999.999 Relating to speed variation
0 rpm ... n
max
(C0011)
C0013 TIF (DEC) 0.000 Deceleration time for the
l speed setpoint (for "speed
control")
l torque setpoint (for "torque
control")
^ 327
0.000 {0.001 s} 999.999 Relating to speed variation
0 rpm ... n
max
(C0011)