Free Function Blocks; Overview; Further Information - Siemens SINAMICS G120D Operating Instructions Manual

Advanced commissioning
6.7 Application-specific functions
6.7.7

Free function blocks

6.7.7.1

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.
6.7.7.2

Further information

Application description for the free function blocks
Further information is provided in the Internet:
FAQ (http://support.automation.siemens.com/WW/view/en/85168215)
216
Operating Instructions, 07/2016, FW V4.7 SP6, A5E34262100B AD
Converter with control units CU240D-2