ABB NCSA-01 CS 31 Quick Installation And Start-up Manual

ABB NCSA-01 CS 31 Quick Installation And Start-up Manual Manual pdf 24 page image

Chapter 5 – Programming5-4NCSA-01 Installation and Start-up Guide07 DATA SET1 CONST This parameter changes the polling time of the first data set. Thedefault value (1) indicates that the first data set pair (usually DS1 andDS2) are sent during every polling sequence (every 6 milliseconds).08 DATA SET2 CONST09 DATA SET3 CONSTThese parameters change the polling times of the second pair of datasets (usually DS3 and DS4) and third data set pair (usually DS5 andDS6) respectively. Allowable values are 1 to 32767, one unitcorresponding to 6 milliseconds.10 DATA SET OFFSET Normally, data sets DS1, DS3 and DS5 are sent by the master to thedrive, whereas data sets DS2, DS4 and DS6 are sent by the drive tothe master. The starting data set number can be offset by using thisparameter.The first data set number used equals the value of this parameter; e.g.if this parameter is set to 1, the first data set to be used is DS1.By default, the value of this parameter is 1, thus the first data set usedis DS1.Control Locations ABB drives can receive control information from multiple sourcesincluding digital inputs, analogue inputs, the drive control panel and acommunication module (e.g. NCSA-01). ABB drives allow the user toseparately determine the source for each type of control information(Start, Stop, Direction, Reference, Fault Reset, etc.). In order to givethe fieldbus master station the most complete control over the drive,the communication module must be selected as source for thisinformation. See the user documentation of the drive for information onthe selection parameters.