WEG CFW-09 - Serial Communication; Introduction

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CHAPTER 8 - CFW-09 OPTIONS AND ACCESSORIES
8.13 SERIALCOMMUNICATION
8.13.1 Introduction
The basic objective of the serial communication is the physical connection of
inverters in a configured equipment network, as shown below:
The inverters possess a control software for the transmission/reception of
data through the serial interface, to facilitate the data reception sent by the
master and the sending of data requested by the same.
The transfer rate is 9600 bits/s, following an exchange protocol, question/
answer type by usingASCII characters.
The master is
a
ble to realize the following operations relatedto each inverter:
-IDENTIFICATION
network number;
inverter type;
softwareversion.
-
CONTROL
generalenabling/disabling;
enabling/disabling by ramp;
direction of rotation;
speedreference;
local/remote;
JOG;
error RESET.
-STATUSRECOGNITION
ready;
Sub;
run;
local/remote;
fault;
JOG;
direction of rotation;
setting mode after Reset to Factory Setting;
setting mode after changing the Scalar Control Mode to Vector Mode;
self-tuning.
Master
PC,PLC, etc.
Slave 1
(Inverter)
Slave 2
(Inverter)
Slave n
(Inverter)
n

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