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Beckhoff
6.1.4.4
Connection diagram
Layout of the SERCOS bus system in ring topology, with optical fibre cables (schematic).
AGND and DGND (connector X3) must be joined together !
6.1.4.5
Modifying the station address
The drive address can be set to a value between 0 and 63. With address 0, the drive is assigned
as an amplifier in the SERCOS ring. There are various ways to set the station address:
Keys on the front of the servo amplifier
The SERCOS address can also be modified using the keys on the front (p. 69).
Setup software
The address can also be modified in the setup software. For additional information, please refer to
the "Setup software" manual or the online help. Alternatively, enter the command ADDR # in the
"Terminal" screen, where # is the new address of the drive.
6.1.4.6
Modifying the baud rate and optical power
If the baud rate is not set correctly, communication is not possible. The SBAUD # parameter can be
used to set the baud rate, where # is the baud rate.
If the optical power is not set correctly, errors occur in telegram transmission and the red LED on
the drive lights up. During normal communication, the green send and receive LEDs flash, giving
the impression that the relevant LED is on. The SLEN # parameter can be used to specify the opti-
cal range for a standard 1 mm² glass fibre cable, where # is the length of the cable in metres.
Setup software
The parameters can be modified in the setup software, "SERCOS" screen. For additional informa-
tion, please refer to the "Setup software" user manual and the online help. Alternatively, the com-
mands SBAUD # and SLEN # can be entered in the "Terminal" screen.
AX2040/2070 Installation Manual
SBAUD
2
2 Mbaud
4
4 Mbaud
1...< 15
8
8 Mbaud
15...< 30
16
16 Mbaud
02/06
0
sehr kurze Verbindung
Länge der Verbindung mit einem 1 mm² Kunststoffkabel
Länge der Verbindung mit einem 1 mm² Kunststoffkabel
³ 30
Länge der Verbindung mit einem 1 mm² Kunststoffkabel
Expansions, accessories
SLEN
- A.4.038.4/24
79
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