4 • vacon
canopen
Tel.+358-(0)201-21
Tel. +358 (0)201 2121 • Fax +358 (0)201 212 205
3
2.
CANOPEN OPTION BOARD TECHNICAL DATA
2.1
General
CanOpen
connections
Interface
Open Style Connector (Pluggable connector, 5.08mm)
Data transfer
method
CAN (ISO 11898)
Transfer cable
2 wire twisted shielded cable
Electrical isolation 500 VDC
Communications
CanOpen
CiA DS-301
CiA DSP-402
Baud rate
10 kBaud
20 kBaud
50 kBaud
100 kBaud
125 kBaud
250 kBaud
500 kBaud
1000 kBaud
Addresses
1 – 127
Environment
The specifications of the drive are applicable.
Safety
Fulfils EN50178 standard
Table 2-1. CanOpen technical data
2.2
CanOpen cable
According to the ISO 11898 standard, cables to be chosen for CAN bus lines should have a nominal
impedance of 120
Ω
, and a specific line delay of nominal 5 ns/m. Line termination has to be provided
through termination resistors of 120
Ω
located at both ends of the line. The length related resistance
should have 70 m
Ω
/m. All these mentioned AC and DC parameters are suitable for a 1 Mbit/s
transmission rate.
The table below shows practical bus length for CANopen networks with less than 64 nodes:
Baudrate [Kbit/s]
Max. Bus length [m]
1000
30
800
50
500
100
250
250
125
500
50
1000
20
2500
