User`s guide

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CHAPTER 8 - CFW-08 OPTIONS AND ACCESSORIES
-IDENTIFICATION
network address;
inverter;
software version.
- CONTROL
general enabling/disabling;
enabling/disabling by ramp;
direction of rotation;
frequency/speed reference;
local/remote;
JOG;
error and fault RESET.
-STATUS RECOGNITION
ready;
Sub;
run;
local/remote;
error;
JOG;
direction of rotation.
- PARAMETER READING
- CHANGE OF PARAMETERS
Typical examples of network use:
PC (master) for the parametrization of one or several
inverters at the same time;
SDCD monitoring inverter variables;
PLC controlling the operation of one or more inverters in a
industrial process.
Thephysical connection between theinverters and the master
is performed according to one of the standards below:
a. RS-232 (point to point up to 10 m (32.8 ft)).
b.
RS-485(multipoint,galvanicisolation,upto 1000m(3280.8ft)).
8.24.2
RS-485 and
RS-232 Interfaces
Description
The inverters have a control software for data transmission/
reception through serial interface,thus facilitating thereception
ofdata thathave beensent bythe masterandthe transmission
ofthedata requestedbythe master.
ThissoftwaresupportsWEGprotocolandninedifferentModbus-
RTU modes, that can be selected via parameter P312. The
subjectsbroached inthis
item
refers toWEGprotocol. For more
details about the Modbus-RTU,
refer to
item 8.25.
The transfer rateis 9600 bits/s, following an exchangeprotocol
of question/answertypebyusingASCII characters.
The master is ableto realize thefollowingoperations related to
eachinverter: