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Siemens SINUMERIK 840C Installation Instructions

Siemens SINUMERIK 840C
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12.10 FIFO/predecoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–71
12.10.1 Rapid block change using FIFO function (up to SW 2 only) . . . . . . . . 12–71
12.10.2 Control of predecoding (SW 5 and higher) . . . . . . . . . . . . . . . . . . . 12–73
12.10.2.1 Corresponding data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–73
12.11 Absolute encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–74
12.11.1 SIPOS absolute encoder up to SW 4 . . . . . . . . . . . . . . . . . . . . . . . 12–74
12.11.1.1 Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–74
12.11.1.2 Hardware requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–74
12.11.1.3 Synchronizing the absolute encoder with the machine absolute system 12–75
12.11.1.4 What happens on warm restart (POWER ON) . . . . . . . . . . . . . . . . . 12–78
12.11.1.5 Special case ”Parking axis” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–78
12.11.1.6 Absolute encoder error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–78
Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–79
12.11.1.7 SIPOS absolute encoder errors . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–80
12.11.2 ENDAT absolute encoder (SW 5.2 and higher) . . . . . . . . . . . . . . . . 12–81
12.11.2.1 Function features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–81
12.11.2.2 Hardware requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–82
12.11.2.3 Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–82
12.11.2.4 Special features for large traversing ranges . . . . . . . . . . . . . . . . . . . 12–84
12.11.2.5 Offset of the absolute encoder from the machine absolute system . . 12–86
12.11.2.6 Behaviour on power on) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–90
12.11.2.7 Special case ”Parking axis” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–90
12.11.2.8 Absolute encoder error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–90
12.11.3 Range extension with ENDAT absolute encoder (as from SW 6) . . . . 12–90
12.11.3.1 Description of function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–90
12.11.3.2 Storing absolute information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–91
12.11.3.3 First start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–93
12.11.3.4 Special start-up cases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–94
12.11.3.5 Start-up after data loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–94
12.12 Path dimension from PLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–95
General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–95
12.12.1 Execution of the function ”Path dimension from the PLC” . . . . . . . . 12–95
12.12.2 Termination of the function ”Path dimension from the PLC” . . . . . . . 12–96
12.12.3 Interruption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–96
12.12.4 Meaning of NC MD 5008, bit 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–97
12.12.5 Influence of the modes on the path dimension function from the PLC 12–97
12.12.5.1 Path dimension from the PLC and JOG operating mode . . . . . . . . . . 12–97
12.12.5.2 Path dimension from the PLC and MDA, TEACH IN and AUTOMATIC
modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–98
Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–100
12.13 Indexing function from the PLC . . . . . . . . . . . . . . . . . . . . . . . . . 12–102
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–102
12.13.1 Division in set-up mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–103
12.13.2 Division from the PLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–103
12.13.3 Explanation of indexing function terms . . . . . . . . . . . . . . . . . . . . . . 12–104
12.13.4 Machine data for the function ”Setup mode division related” . . . . . . 12–107
12.13.5 Traversing an indexing axis to the reference point . . . . . . . . . . . . . . 12–109
12.13.6 Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–110
12.13.7 Actual value display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–110
12.13.8 PLC user interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–112
12.13.9 Conditions for the function ”Setup mode division related” . . . . . . . . . 12–112
12.13.10 Error messages from the NC to the PLC . . . . . . . . . . . . . . . . . . . . . 12–113
12.14 Dynamic feedforward control and setpoint smoothing filter . . . . 12–113
12.14.1 Feedforward control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–114
12.14.1.1 Corresponding data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–114
12.14.1.2 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–114
12.14.2 Setpoint filter in drive (SW 4 and higher) . . . . . . . . . . . . . . . . . . . . . 12–115

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Siemens SINUMERIK 840C Specifications

General IconGeneral
BrandSiemens
ModelSINUMERIK 840C
CategoryControl Unit
LanguageEnglish

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