Lenze ECSCSxxx - Manual (Page 331)

Function library
Speed (speed control)
Setpoint processing
12
l
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)