Lenze ECSES Series - Page 331

Function library
Speed (speed control)
Setpoint processing
12
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331
EDBCSXS064 EN 4.0
12.27.2.5 Connecting an additional setpoint
An additional setpoint can be connected via the input SPEED−NSET.NAdd (C7431/2). The
additional setpoint is inverted by an analog switch. Then, a ramp function generator
follows before the additional setpoint is connected to the speed setpoint in the arithmetic
block. The additional setpoint can be used, for instance, as a correction signal for grinding
machines for controlling a constant circumferential speed when the grinding wheel
diameter decreases.
If you want to use the additional setpoint, set C0190 to the desired arithmetical
connection. In the Lenze setting, the additional setpoint is switched off.
Value in
C0190
Output signal SPEED−NSET.NOut = Values used from the codes
0 SPEED−NSET.NSet C7431/1
1 SPEED−NSET.NSet + SPEED−NSET.NAdd C7431/1 + C7431/2
2 SPEED−NSET.NSet − SPEED−NSET.NAdd C7431/1 − C7431/2
3 SPEED−NSET.NSet x SPEED−NSET.NAdd C7431/1 x C7431/2
4 SPEED−NSET.NSet / I SPEED−NSET.NAdd I
C7431/1
|C7431/2|
5 SPEED−NSET.NSet / (100 − SPEED−NSET.NAdd)
C7431/1
100 * C7431/2
Code Possible settings IMPORTANT
No. Designation Lenze/
{Appl.}
Selection
C0190 NSET ARIT 0
Linking of speed setpoint (NSet)
and additional setpoint (NAdd)
 331
0 OUT = NAdd Additional setpoint is not
considered.
1 NSet + NAdd Additional setpoint is added to
speed setpoint.
2 NSET−NADD Additional setpoint is subtracted
from speed setpoint.
3 NSet x NAdd Additional setpoint is multiplied
by speed setpoint.
4 NSet / NAdd Speed setpoint is divided by
additional setpoint.
5 NSet / (100 − NAdd) Speed setpoint is divided by (100
− additional setpoint).
C0220 NSET Tir add 0.000
Acceleration time for the
additional setpoint
 331
0.000 {0.001 s} 999.999 Relating to speed variation
0 rpm ... n
max
(C0022)
C0221 NSET Tif add 0.000
Deceleration time for the
additional setpoint
 331
0.000 {0.001 s} 999.999 Relating to speed variation
0 rpm ... n
max
(C0011)