Lenze 8400 StateLine - Manual (Page 863)

Lenze · 8400 StateLine · Reference manual · DMS 12.0 EN · 06/2014 · TD05/TD14
863
16 Working with the FB Editor
16.1 Basics
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Signal type entry
In general, it is possible to assign a certain signal type to the inputs and outputs of the Lenze
function blocks. There are e.g. digital, scaled, position, acceleration and speed signals.
• A corresponding ending (preceded by an underscore) is added to the identifier of the
corresponding input/output to indicate the signal type.
16.1.3 Scaling of physical units
With regard to the parameter setting & configuration of the controller it is very helpful to know the
signal types and their scaling listed in the following table, which are used to process physical values
(e.g. an angular velocity or position) in the function block interconnection.
Signal type entry
& port symbol
in the FB Editor
Meaning Resolution Value range
_a  Analog/scaled 16 bits ± 199.99 %
_v  /  Angular velocity 16 bits ± 30000.0 rpm
_p  /  Position 32 bits -2 31 ... 2 31 -1 increments
 Digital (BOOL) 8 bits 0 ≡ FALSE; 1 ≡ TRUE
Other (WORD) 16 bits 0 ... 65535
 Other (DINT) 32 bits -2147483647 ... 2147483647
Signal type entry
& port symbol
in the FB Editor
Meaning Scaling
External value ≡ internal value
_a  Analog/scaled 100 % ≡ 2 14 ≡ 16384
_v  /  Angular velocity 15000 rpm ≡ 2 14 ≡ 16384
_p  /  Position 1 encoder revolution ≡ 2 16 increments