Operating instructions

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3.3. Configure the Frequency Converter

3.3.1. VLT Parameters

Pay particular attention to the following parameters when configuring the frequency converter

with a PROFIBUS interface.

• Par. 0-40

[Hand on] key on LCP

. If the Hand button on the frequency converter is acti-

vated, control of the drive via the PROFIBUS interface is disabled

• After an initial power up the frequency converter will automatically detect whether a

fieldbus option is installed in slot A, and set par. 8-02

Control word source

to [Option A].

If an option is added or changed in or removed from an already commissioned drive, it

will not change par. 8-02 but enter Trip Mode, and the drive will display an error

• Par. 8-10

Control word profile

. Choose between the Danfoss FC Profile and the PROFI-

drive profile

• Par. 8-50 to 8-56. Selection of how to gate PROFIBUS control commands with digital

input command of the control card

• Par. 8-03 to 8-05. The reaction in the event of a bus time out is set via these parameters

• Par. 9-18

Node address

• Par. 8-07

Diagnosis trigger

3.3.2. LEDs

The two bi-colour LEDs in the PROFIBUS card

indicate the status of PROFIBUS communica-

tion

The LED marked “NS” indicates the network

status, i.e. the cyclical communication to the

PROFIBUS master. When this light shows con-

stant green, then data exchange between the

master and the frequency converter is active.

The LED marked “MS” indicates the module

status, i.e. acyclical DP V1 communication

from either a PROFIBUS master class 1 (PLC)

or a master class 2 (MCT 10, FDT tool). When

this light shows constant green, then DP V1

communication from master classes 1 and 2 is

active.

For details of the full range of communications

status indicated by the LEDs, please refer to

the

Troubleshooting

chapter.

3. How to Configure the System VLT

Profibus

MG.33.C4.02 - VLT

is a registered Danfoss trademark