Free Function Blocks; Overview - Siemens SINAMICS G120 Operating Instructions Manual

Advanced commissioning

6.14 Free function blocks

6.14 Free function blocks
6.14.1

Overview

The free function blocks permit configurable signal processing in the inverter.
The following free function blocks are available:
● AND, OR, XOR, and NOT logic
● RSR (RS flip-flop), DSR (D flip-flop) flip-flops
● Timers MFP (pulse generator), PCL (pulse shortening), PDE (ON delay), PDF (OFF delay),
and PST (pulse stretching)
● ADD (adder), SUB (subtractor), MUL (multiplier), DIV (divider), AVA (absolute value
generated), NCM (comparator), and PLI (polyline) arithmetic functions
● LIM (limiter), PT1 (smoothing), INT (integrator), DIF (differentiator) controllers
● NSW (analog) BSW (binary) switches
● LVM limit value monitoring
The number of free function blocks in the inverter is limited. You can only use a function block
once. The inverter has 3 adders, for instance. If you have already configured three adders,
then no other adders are available.
Application description for the free function blocks
Further information is provided in the Internet:
FAQ (http://support.automation.siemens.com/WW/view/en/85168215)
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Converter with the CU230P-2 Control Units
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257946B AE