Nidec AD3000 User Manual

AD3000 4 – PROFIBUS DP
NIDEC ASI S.P.A. – AD3000 COMMUNICATION MANUAL
IMAD30007EN 15
4 PROFIBUS DP
4.1 Introduction
PROFIBUS DP is a fieldbus initially defined by standard DIN 19245, later incorporated in EN 50170. From 1999 it is standardised in standards IEC
61158 (“Digital data communications for measurement and control - Fieldbus for use in industrial control systems”) and IEC 61784 (“Digital data
communications for measurement and control”).
PROFIBUS DP has a wide range of applicability, especially in factory and process automation, and can be used when high speed communications
and/or complex applications are required.
It provides a wide range of communication technologies, protocols and profiles. Among them, communication protocol PROFIBUS DP implements a
simple, quick, cyclic and deterministic data exchange between a master device and one or more slave devices.
AD3000 is equipped with a PROFIBUS DP interface based on the PROFIdrive communication profile for class 1 applications (“Standard Drive”).
4.2 Physical interface: ETH-PROFI optional board
To use the PROFIBUS DP fieldbus it is necessary to install the ETH-PROFI optional board described in paragraph Modbus TCP and PROFIBUS
DP communication module (ETH-PROFI).
4.3 General characteristics
Table 4.1 sums up the main characteristics of the AD3000 PROFIBUS DP interface available with the ETH-PROFI optional board.
Transmission technology
RS 485
Connector
Sub D 9-pin female
Cable
Shielded pair
Transmission speed
From 9.6 kbit/s to 12 Mb/s
Communication protocol
PROFIBUS
DP
Managed PPO’s
1, 2, 3, 4, 5
Table 4.1 - Main characteristics of the PROFIBUS DP interface
Table 4.2 contains the main characteristics of a PROFIBUS DP network with a RS485 physical interface.
Table 4.3 contains the parameters of the cables used for communication.
For the choice of the connectors to be used refer to Table 4.4.
Topology
Linear w ith termination resistances at the ends
Access control to the bus
Token passing between masters, polling between a master and its slav es
Transmission speed
From 9.6 kbit/s to 12 Mb/s
Maximum length of a segment
From 100 to 1,200 m, based on the transmission speed adopted
Cable
Tw isted pair
Maximum number of devices
32 per segment w ith no repeater, 126 w ith repeater (max imum 9 repeaters)
Table 4.2 - Main characteristics of PROFIBUS DP
Parameter
Type A cable
Type B cable
Impedance
135 ... 165  (3 to 20 MHz)
100 ... 130  ( f > 100kHz)
Capacity
< 30 pF/m
< 60 pF/m
Resistance
< 110 / km
-
Conductor diameter
> 0.64 mm
> 0.53 mm
Conductor cross-section
> 0.34 mm
2
> 0.22 mm
2
Table 4.3 - Electric parameters of PROFIBUS DP cables
Type
Order code
9P connector for networks
ELC226056
Cable
ELC226058 or 229306
E.g. The follow ing cables can be used
Belden PROFIBUS DP Data Cable 3079A

Nidec AD3000 Specifications

General

Brand	Nidec
Model	AD3000
Category	DC Drives
Language	English