Lenze 8400 HighLine - Manual (Page 1470)

17 Function library
17.1 Function blocks
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Lenze · 8400 HighLine · Referenzhandbuch · DMS 10.0 EN · 06/2014 · TD05/TD14
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17.1.139.2 Example
The current speed at nSet_v and the gearbox factors serve to create a specific machine measuring
system from the motor measuring system.
• 216 increments in the motor measuring system are to correspond to 1 motor revolution.
• 216 increments in the machine measuring system (nOut16) are to correspond to 1 machine
shaft revolution.
Initialise integrator
A FALSE/TRUE edge at bTPReceived initialises the integrator, i.e. a calculation with dnTPPosition_p
and dnLoadVal_p is made:
• After initialisation is completed, the bInitDone output is set to TRUE in the next call cycle.
• In case of a renewed initialisation without a previous reset (bReset = TRUE), the bInitDone
output is set to FALSE for a task cycle.
Reset integrator
When bReset is set to TRUE, the integrator is set to 0. No calculations are made.
• The Boolean outputs are set to FALSE.
• The bReset input has the highest priority.
Load integrator
When bLoad is set to TRUE, the integrator is loaded with the value at dnLoadVal_p and the outputs
are set.
• When bLoad is set to TRUE, the input is not integrated and no check for overflow is executed.
• When bLoad is reset to FALSE, the integrator continues from the loaded value. The bInitDone
output is reset to FALSE after a FALSE/TRUE edge at bTPReceived with a delay of one call cycle.
nOut16 (INT) dnLoadVal_p dnTPPosition_p Gearbox factor ⋅
+
( )
=
dnOut32_p dnLoadVal_p dnTPPosition_p Gearbox factor ⋅
+ =