Siemens SINAMICS G120 Original Instructions Manual page 319

Runtime groups and time slices
The inverter computes runtime groups 1 ... 6 in different time slices.
Table 8- 34
Free function blocks
Logic AND, OR, XOR, NOT
Arithmetic ADD, SUB, MUL, DIV, AVA,
NCM, PLI
Timers MFP, PCL, PDE, PDF, PST
Memories RSR, DSR
Switches NSW
Switches BSW
Controllers LIM, PT1, INT, DIF
Monitoring LVM
✓: The inverter can compute the free function block in this runtime group
-: A free function block is not possible in this runtime group
Scaling the analog signals
If you interconnect a physical quantity, e.g. speed or voltage to the input of a free function
block, then the inverter automatically scales the signal to a value of 1. The analog output
signals of the free function blocks are also scaled (0 ≙ 0%, 1≙ 100%).
As soon as you have interconnected the scaled output signal of a free function block to
functions that require physical input quantities, then the inverter converts the signal into the
physical quantity. An example of this is the signal source for the upper torque limit (p1522).
Scaling parameters of physical quantities:
Speed
Voltage
Current
Torque
Power
Angle
Temperature
Temperature
The assignments to the reference parameters are in the parameter description in the List
Manual.
Inverter with CU230P-2 Control Units
Operating Instructions, 11/2013, FW V4.6.6, A5E02430659B AG
Runtime groups, time slices and assignment of the free function blocks
p2000 Reference speed
p2001 Reference voltage
p2002 Reference current
p2003 Reference torque
p2004 Reference power
p2005 Reference angle
p2006 Reference temperature
100 °C ≙ 100%
8.7 Application-specific functions
Runtime groups 1 ... 6 with associated time slices
1 2 3
8 ms 16 ms 32 ms
✓ ✓ ✓
- - -
- - -
✓ ✓ ✓
- - -
✓ ✓ ✓
- - -
- - -
(≙100%)
(≙100%)
(≙100%)
(≙100%)
(≙100%)
(≙100%)
(≙100%)
Setting functions
4 5 6
64 ms 128 ms 256 ms
✓ ✓ ✓
- ✓ ✓
- ✓ ✓
✓ ✓ ✓
- ✓ ✓
✓ ✓ ✓
- ✓ ✓
- ✓ ✓
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