Siemens SINAMICS S120 Installation And Start-Up Manual page 215

Scaling
Scaling specifies how the measuring signal is processed. A straight line with 2
points must be defined for this purpose.
Example:
x1 / y1 = 0.0 % / 2.49 V
-->
-->
-->
Offset
The offset is applied additively to the signal to be output. The signal to be output
can thus be displayed within the measuring range.
Limit
S Limitation on
If signals are output outside the permissible measuring range, the signal is
limited to 4.98 V or to V.
S Limitation off
The output of signals outside the permissible measuring range causes a signal
overflow. In the event of an overflow, the signal jumps from 0 V to 4.98 V or
from 4.98 to 0 V.
Example of a measurement
Assumption:
The actual speed after smoothing (r0063) is to be output for a drive via measuring
socket T1.
How do you do it?
1. Connect and set the measuring device.
2. Interconnect the signal (e.g. STARTER).
Interconnect the connector input (CI) belonging to the measuring socket with
the desired connector output (CO).
CI: p0771[1] = CO: r0063
3. Parameterize the signal characteristic (scaling, offset, limitation).
E Siemens AG, 2004. All rights reserved
SINAMICS S120 Installation and Start-Up Manual, 12/04 Edition
x2 / y2 = 100.0 % / 4.98 V (default setting)
0.0 % is mapped onto 2.49 V
100.0 % is mapped onto 4.98 V
-100.0 % is mapped onto 0.00 V
Diagnosis
Diagnostics using STARTER
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