Ethercat; Ethercat ® With Redundancy; Description Of Operation - Danfoss VLT ISD 510 Design Manual

System Overview

2.3.3.2 EtherCAT

2 2
To connect additional SAB units in the same EtherCAT
network, use an RJ45 to RJ45 network cable from the
Ethernet X2 connection on the 1
connection on the 2
2.4 EtherCAT
Ring redundancy can be achieved using a special cabling
scheme. Connect the fieldbus extension cable to the last
servo drive on the line and connect the other end of the
cable with an Ethernet CAT5 cable. Settings must also be
made in the engineering environment; see the
corresponding online help for further information.

2.5 Description of Operation

Illustration 2.7 shows the VLT
®
ISD 510 System and components.
1
Real-Time Ethernet
SAB
5
A1 13 28
S33 S34 Y36 Y37 P1
P2
PNOZ X2P
Power
CH. 1
CH. 2
P2
S11 S12 S21 S22
4 P1
A2 14 24
Illustration 2.7 Overview of the ISD 510 Servo System and
Components
1 24/48 V power supply
2 Encoder
3 I/O
4 Brake resistor
5
Safety relay
Table 2.3 Legend to Illustration 2.7
1) Safety relays that have a plus and minus switching output signal
can be directly connected to the ISD 510 servo system to activate
STO.
14
®
st
SAB to the Ethernet X1
nd SAB, and so on.
®
with Redundancy
®
Integrated Servo Drive
PLC
400-480 V AC
AUX 1
AUX 2
SAFE 1
SAFE 2
Status Quick Main Alarm
Menu Menu Log
OK 2
Hand Auto
Off Reset
On On
UDC + Real-Time Ethernet Bus + STO + U AUX
. . .
ISD 510
. . .
1)
Danfoss A/S © 08/2017 All rights reserved.
®
VLT Integrated Servo Drive ISD
Component
ISD 510 servo
drive
®
Servo Access
Box (SAB)
Hybrid cable
Local Control
Panel (LCP)
2
External
3
encoder
PLC
STO
Analog/Digital
Sensor
rd
3 party
Status Quick Main Alarm
Menu Menu Log
OK
fieldbus device
Hand Off Auto Reset
On On
LCP
Table 2.4 ISD 510 System Components
®
510 System
Description
Motors with integrated signal and power
electronics. They are mounted decentrally in the
application and have advanced motion control
functionality on board.
Central supply and access unit for mounting
inside a control cabinet. The SAB is the power
supply for the ISD 510 servo drives and is the
central access point for the fieldbus.
There are 2 types of hybrid cable:
•
Feed-in cable: Connects the SAB to the 1
servo drive.
•
Loop cable: Connects the servo drives in an
application in daisy-chain format. Speed
connectors minimize installation time, cost,
and risk of failures.
Graphical user interface for diagnostic and
operating purposes. The LCP is mounted on the
SAB but can be removed and connected to the
servo drive via connector X5 (advanced version
only). The LCP can be used for the ID
assignment of the advanced servo drives. The ID
assignment is started via LCP and the LCP also
indicates if the procedure is finished.
An external encoder can be connected to each
SAB and servo drive in the system.
PLC with Ethernet POWERLINK
fieldbus master functionality.
Safe torque off feature can be provided via
external safety circuits.
Connection to the servo drives is possible.
Connection to the M8 4-pole fieldbus port on
the servo drive (advanced servo drive only)
st
® ®
and EtherCAT
MG36C102