Lenze DDS Function library Drive Manuale Utente Scaricare il pdf (Pagina 14)

2.2.1 Absolute value generation (L_ABS)

Function library LenzeDrive.lib

Analog signal processing

2−4

LenzeDrive.lib EN 1.7

2.2 Analog signal processing

2.2.1 Absolute value generation (L_ABS)

This FB converts bipolar values into unipolar values. It calculates the absolute value of the input

signal.

L _ A B S

n O u t _ a

n I n _ a

Fig. 2−2 Absolute value generation (L_ABS)

VariableName DataType SignalType VariableType Note

nIn_a Integer analog VAR_INPUT

nOut_a Integer analog VAR_OUTPUT

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 102 103

Global Drive 1
PLC Developer Studio 1
Important note: 2
Contents 3
1.1 About this Manual 5
1.1.2 Description layout 6
1.1.4 Terminology used 6
1.2.1 Hungarian Notation 7
LenzeDrive.lib EN 1.7 10
2 Function blocks 11
2.1 General signal processing 12
General signal processing 13
L _ A B S 14
Analog signal processing 15
2.2.2 Addition (L_ADD) 15
* ( - 1 ) 18
L _ A N E G 18
2.2.6 Arithmetic (L_ARIT) 21
2.2.7 Changeover (L_ASW) 22
2.2.8 Comparison (L_CMP) 23
2.2.10 Dead−band (L_DB) 30
L _ L I M 32
2.2.13 Delay (L_PT1_) 33
2.2.14 Ramp generator (L_RFG) 34
2.3 Digital signal processing 39
L_DIGDEL 40
Digital signal processing 41
2.3.2.2 Dropout delay 41
2.3.2.3 General delay 41
2.3.4 Flip−flop (L_FLIP) 43
2.3.5 Logical NOT (L_NOT) 44
2.3.6 Logical OR (L_OR) 45
2.3.7.1 Evaluate rising edges 46
2.4.1 Arithmetic (L_ARITPH) 48
± 2 - 1 49
2.4.3 Comparison (L_PHCMP) 50
2.4.4 Difference (L_PHDIFF) 51
L _ P H D I V 52
R e v o l u t i o n 52
2.4.6 Integration (L_PHINT) 53
2.4.6.1 Constant input value 53
2.4.7 Integration (L_PHINTK) 55
2.4.7.1 Constant input value 56
 Given values: 58
 Solution: 58
2.5 Signal conversion 59
Signal conversion 60
2.5.4 Conversion (L_CONVVV) 62
2.6 Communication 64
Communication 65
2.6.4 Read codes (L_ParRead) 65
2.7 Special functions 73
Special functions 74
2.7.2 Fault trigger (L_FWM) 78
2.7.4.1 Main setpoint channel 84
2.7.4.2 JOG setpoints 85
2.7.4.3 Setpoint inversion 85
2.7.4.5 S−ramp 87
2.7.4.6 Arithmetic operation 87
2.7.4.7 Additional setpoint 88
2.7.5.2 Ramp generator 92
3 Appendix 95
Appendix 100
Integration (L_PHINT), 2−43 101
Constant input value , 2−43 102
Constant input value , 2−46 102

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Lenze DDS Function library Drive Manuale Utente Pagina 14

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