Connection Of Fibre-Optic Cables; Hardware Settings; Setting The Transmission Power Of The Sercos Interface; Setting The Drive Address Via Parameter - Moog MSD User Manual

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2.3

Connection of fibre-optic cables

The connection between the master (control) and the servo drives is made by fibre-optic
cables. This requires a loop architecture to be constructed, as illustrated in the following
diagram for three drive axes.
SERCOS
Master
Figure 2.3 Connection of fibre-optic cables
The fibre-optic loop starts and ends at the SERCOS master (control). The optical output
of the master is connected to the optical input of the first drive (X31). Its optical output
(X30) is connected to the input of the next drive, and so on. The output of the last drive
is connected to the optical input of the master. The SERCOS slave addresses are assigned
independently of their positions in the loop.
56 56 56
1 1 1
X X X
X 2 X 2 X 2
X 3 X 3 X 3
X 4 X 4 X 4
REL 24 12 RSH REL 24 12 RSH REL 24 12 RSH
REL 23 11 RSH REL 23 11 RSH REL 23 11 RSH
ISDSH 22 10 ENPO ISDSH 22 10 ENPO ISDSH 22 10 ENPO
ISD06 21 9 OSD02 ISD06 21 9 OSD02 ISD06 21 9 OSD02
ISD05 20 8 OSD01 ISD05 20 8 OSD01 ISD05 20 8 OSD01
ISD04 19 7 OSD00 ISD04 19 7 OSD00 ISD04 19 7 OSD00
ISD03 18 6 ISA1- ISD03 18 6 ISA1- ISD03 18 6 ISA1-
ISD02 17 5 ISA1+ ISD02 17 5 ISA1+ ISD02 17 5 ISA1+
ISD01 16 4 ISA0- ISD01 16 4 ISA0- ISD01 16 4 ISA0-
ISD00 15 3 ISA0+ ISD00 15 3 ISA0+ ISD00 15 3 ISA0+
+24 V 14 2 +24 V +24 V 14 2 +24 V +24 V 14 2 +24 V
DGND 13 1 DGND DGND 13 1 DGND DGND 13 1 DGND
X 5 X 5 X 5
S 4 S S
X X X
ACHTUNG ACHTUNG ACHTUNG
Kondensatorenent- Kondensatorenent- Kondensatorenent-
ladezeit > 3 min. ladezeit > 3 min. ladezeit > 3 min.
Betriebsanleitun g Betriebsanleitung Betriebsanleitun g
beachten! beachten! beachten!
WARNING WARNING WARNING
Capacitor discharg e Capacitor discharg e Capacitor discharge
time > 3 min. time > 3 min. time > 3 min .
Pay attention to the Pay attention to the Pay attention to th e
operation manual! operation manual! operation manual!
MSD Servo Drive User Manual SERCOS II
2.4

Hardware settings

2.4.1

setting the transmission power of the sercos interface

By way of parameter P-0-3004 the transmission power of the fibre-optic transmitter can
be set. Entering a 0 corresponds to the lowest power and a 3 the highest. The following
values are intended as a guide:
0: <15 m
1: 15 .. 30 m
2: 30 .. 45 m
3: >45 or HCS
0: <15 m 1: 15 .. 30 m
2.4.2

setting the drive address via parameter

The drive address is set in parameter P-0-3000 (Drive address). EA drive address setting
or change made in this parameter only takes effect the next time the communication
phase changes from "0" to "1". The drive address is independent of the position of the
drive in the SERCOS loop.
Drive address programming using pushbuttons and a display is in preparation.
2.4.3

transfer rate of sercos interface

The transfer rate specified by the master is automatically detected by the drive, set ac-
cordingly and indicated in parameter S-0-0376: Baud rate, SERCOS interface.
note: Baud rates of 2, 4, 8 and 16 MBaud are supported. Automatic baud
rate detection in the drive is implemented according to SERCOS Application
Note AN15 dated 2002/08/22.
12
2: 30..45 m 3: >45 or HCS