GE Industrial Solutions 6KCV301DGF - Manual (Page 3)

Table of contents
1. GENERAL DESCRIPTION ..................................................................6
1.1 INTRODUCTION .................................................................................... 6
1.2 HARDWARE DESCRIPTION .................................................................. 7
1.2.1 MEMORY MAP .............................................................................................. 7
1.2.2 SERIAL LINE RS-485 ...................................................................................... 8
1.2.3 LEDS ............................................................................................................ 11
1.2.4 JUMPERS .................................................................................................... 12
1.2.5 CAN CONNECTOR ........................................................................................ 13
1.3 MECHANICAL LAYOUT ....................................................................... 14
2. DGF OVERVIEW ..............................................................................15
2.1 INTRODUCTION .................................................................................. 15
2.1.1 Firmware organization ................................................................................. 15
2.1.2 DGF application............................................................................................ 16
2.1.2 Working of the DGF ..................................................................................... 17
2.1.3 Global organization of the DBASE ................................................................ 19
2.1.4 Parameters and variables ............................................................................ 22
2.1.4.1 Initialization of the General variables ............................................ 23
2.1.4.2 Data management inside the DBASE ............................................ 23
2.1.4.3 Access to a parameter from the external world ............................ 23
2.1.4.4 Storage of the parameter and of the associated record ................ 24
2.1.5 FVAR, IVAR and NUM .................................................................................. 26
2.1.6 DPRAM organization .................................................................................... 26
2.1.6.1 DPRAM hardware ......................................................................... 27
2.1.6.2 DPRAM software organization ...................................................... 27
2.2 DGF STATUS ....................................................................................... 29
2.2.1 Status commands ........................................................................................ 31
2.2.2 Alarms ......................................................................................................... 32
2.2.2.1 Alarm code from the drive ............................................................. 36
2.2.2.2 Severe alarm ................................................................................. 36
2.3 DATA FORMATS .................................................................................. 38
2.3.1 Description of base-10 floating point ........................................................... 38
2.3.1.1 Shreal format ................................................................................ 38
2.3.1.2 Slreal format ................................................................................. 39