Lenze AC Tech SC Series - Safety Information; General Safety Guidelines; Introduction to Modbus; Modbus Protocol Details

i RG-SFMOD
Contents
1 Safety Information .............................................................................................................1
1.1 Warnings, Cautions and Notes ..............................................................................1
1.1.1 General ....................................................................................................1
1.1.2 Application ...............................................................................................1
1.1.3 Installation ...............................................................................................1
1.1.4 Electrical Connection ................................................................................2
1.1.5 Operation .................................................................................................2
1.2 Reference and Links .............................................................................................2
2 Introduction .......................................................................................................................3
2.1 Modbus Details .....................................................................................................3
2.2 Universal Registers ...............................................................................................4
3 Data Representation - Internal and External .......................................................................5
3.1 Register Format ....................................................................................................5
3.2 Data Types ...........................................................................................................5
3.3 AC Tech Drive Registers........................................................................................5
4 SCF Drive Setup & Operation .............................................................................................6
4.1 Serial Address ......................................................................................................6
4.2 Serial Communications Parameter ........................................................................6
4.3 Control Parameter .................................................................................................6
4.4 Unlocking & Locking Controls ...............................................................................7
4.5 Unlocking & Locking Programming Parameters only .............................................7
4.6 Watchdog Timer ...................................................................................................8
4.7 Monitoring Only Operation ....................................................................................8
4.8 Normal Control Operation Sequence .....................................................................8
4.9 Start/Stop, Speed Control and Parameter Change Operation .................................9