Introduction; About This Manual; Assumptions; References - Danfoss VLT 6000 Manual

Touching electrical parts may be fatal - even after equipment
has been disconnected from AC line. To be sure that
capacitors have fully discharged, wait 14 minutes for 220
and 500 V units and 30 minutes for 550-600 V units after
power has been removed before touching any internal
component.

Introduction

The Siemens Floor Level Network (FLN) is a master/
slave control network for serial communication with
various control devices. The FLN controller is RS-
485 compatible, half duplex, with an operating rate
of 4800 or 9600 baud. Recommended wiring is
shielded, twisted pair. The FLN software protocol is
designed to be general in nature to accommodate
any unique properties of each device type. The node
address system allows up to 96 devices to be used
on any one system.
The Danfoss VLT 6000 is a programmable frequency
converter which controls the operation of 3-phase,
standard induction electrical motors in the HVAC
industry. The VLT 6000 controller has FLN
communication protocol software built-in. The drive
uses optical isolation for fault tolerance and noise
immunity.
The FLN communicates directly with the VLT 6000
drive via the RS-485 serial interface bus. In addition
to being able to control the drive, most drive confi-
guration and control parameters can be reviewed
and changed through the FLN. Also, the operatio-
nal status of the drive can be read and monitored
through the bus. Diagnostic and operational infor-
mation stored in the VLT 6000 is easily available,
such as kWh of energy used, total operation hours,
drive status, motor speed, and many other useful
items which can be accessed and monitored
through the FLN.
The FLN is designed to communicate with any
controller node that supports the interfaces defined
in this document.
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VLT ® 6000 HVAC
DANGER:

About This Manual

The documentation in this manual provides
comprehensive information on the connection,
programming, and start-up of the VLT 6000 for
use with the FLN. It is intended as both an instruc-
tion and reference manual. Functions and features
of the VLT 6000 frequency converter are also
briefly reviewed to serve as a guideline to optimize
your communication system. Read this manual
before programming since important information is
provided in each section.
For detailed information on using the VLT 6000, see
the VLT 6000 Operating Instructions.

Assumptions

This manual assumes that the controller node
supports the interfaces in this document and that
all the requirements and limitations stipulated in the
controller node and the VLT 6000 are strictly ob-
served. It is assumed that the user understands
the general capabilities and limitation of the con-
troller node and the VLT 6000 Frequency Converter.

References

Installation, Operation and Maintenance Manual
for the VLT 6000 Frequency Converter,
Danfoss Graham document 23-6108-00.
(Referred to as the VLT 6000 Operating Instructions
in this manual.)
Operating Instructions VLT 6000 HVAC Frequency
Converter, Danfoss document MG.60.AX.YY
(International version of the VLT 6000 Operating
Instructions.)
Contact Siemens for operational instructions for the
Floor Level Network.
MG.60.G2.02 - VLT is a registered Danfoss Trademark