2 System Overview
2.1 General Description of the Servo System
The VLT
®
Integrated Servo Drive ISD
®
510 System is a high-
performance decentral servo motion solution.
It comprises:
•
A central power supply: VLT
®
Servo Access Box
(SAB
®
).
•
VLT
®
Integrated Servo Drives ISD
®
510.
•
Cabling infrastructure.
The decentralization of the drive unit offers benefits in
mounting, installation, and operation. Depending on the
application, the SAB can power up to 64 servo drives in a
servo drive system when using 2 hybrid lines. It generates
a DC-link voltage of 565–680 V DC
±
10% and guarantees
high power density. It has a removable local control panel
(LCP), and is based on the proven quality of a Danfoss
frequency converter.
The motion control is integrated into the servo drive so
that the motion sequences can take place independently.
This reduces the required computing power of the central
PLC and offers a highly flexible drive concept. Danfoss
offers libraries for various IEC 61131-3 programmable PLCs.
Due to the standardized and certified fieldbus interfaces of
the ISD devices, any PLC with an EtherCAT
®
master
functionality, or Ethernet POWERLINK
®
managing node
functionality according to the standards can be used.
Hybrid cables are used to connect the servo drives, making
installation fast and simple. These hybrid cables contain
the DC-link supply, the Real-Time Ethernet, U
AUX
, and STO
signals.
NOTICE
The ISD 510 servo drives cannot be used in servo
systems from other manufacturers without changing the
cabling infrastructure. Contact Danfoss for further
information.
Drives from other manufacturers cannot be used in the
ISD 510 servo system when using Danfoss hybrid cables.
NOTICE
Only the components described in this manual may be
fitted or installed. Third-party devices and equipment
may be used only in consultation with Danfoss.
2.2 VLT
®
Integrated Servo Drive ISD
®
510
ISD is the abbreviation of integrated servo drive, which is a
compact drive with an integrated permanent magnet
synchronous motor (PMSM). This means that the entire
power drive system consisting of motor, position sensor,
mechanical brake, and also power and control electronics
is integrated into 1 housing. Additional circuits, such as low
voltage supply, bus drivers, and functional safety are
implemented within the servo drive electronics. All servo
drives have 2 hybrid connectors (M23) that connect power
and communication signals from a hybrid cable. The
advanced version has 3 additional interfaces for external
encoder or I/Os, fieldbus devices, and for the local control
panel (LCP) to be connected directly.
LEDs on the top of the servo drive show the current status.
Data transfer takes place via Real-Time Ethernet.
1
2
130BE385.10
1
Operating LEDs
2
Connectors
Illustration 2.1 ISD 510 Servo Drive
and
show the external interfaces on
the ISD 510 servo drive.
System Overview
Design Guide
MG36C102
Danfoss A/S © 08/2017 All rights reserved.
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