BONFIGLIOLI act 401 Manual de usuario descargar pdf (Pagina 31)

System bus / EM-SYS module

The “System Bus” of Active inverters is a proprietary communication bus, based on

CANopen protocol that allows fast exchange of data between the inverters and access,

by a system bus master, to the parameters of all devices connected on the network.

The system bus nodes (max. 64) are connected by a two-wire line.

The Bus termination (at either ﬁrst or last node) can be activated via DIP switches of

the EM-SYS module.

ThesystembusisequippedwiththreePDO(ProcessDataObject)channelsthatallow

rapid exchanges of process data for each inverter. There are also two SDO (Service Data

Object)channelsforparameterisationpurposes.

Thanks to the three PDO channels, with one transmission and one reception channel,

all inverter data can be transmitted. Among other advantages, this makes it possible

to create master/slave and daisy chain conﬁgurations easily, while ensuring very high

precision and speed.

Each transmission and reception

channel includes 8 bytes that can be

freelyoccupiedbyobjects,thereby

offering the maximum ﬂexibility for

a very broad range of applications.

Theselectionoftransmissionobjects

andreceptionobjectsismadeeasyby

the VPlus program, and no additional

conﬁguration tools are needed.

Location of EM-SYS module on the

frequency inverter

CONTROLPARAMETERS

SDO 1SDO 2 PDO

CONTROLPARAMETERS

SDO 1SDO 2 PDO

SYSTEMBUS interfaceSYSTEMBUS interface

Field bus

interface

System bus Master System bus Slave(s)

PLC

Active

Inverter

Active

Inverter

Control system / PC

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Alexey 11 Jun 2024 | 08:57:25

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teophan 27 Jul 2025 | 09:25:51

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BONFIGLIOLI act 401 Manual de usuario Pagina 31