Danfoss MCD Profibus Module Operating guide

MCD Profibus Module Instructions Important User Information

CAUTION
Remove mains and control voltage from the soft starter before attaching or removing
accessories. Failure to do so may damage the equipment.

Remove the Profibus Module using the following procedure:

1. Remove control power and mains supply from the soft

starter.

2. Disconnect all field wiring from the module.

3. Fully pull out the top and bottom retaining clips on the

module.

4. Pull the module away from the soft starter.

Installation Instruction: MCD Profibus Module

Order Code: 175G9001

1. Important User Information

Observe all necessary safety precautions when controlling the soft starter remotely. Alert
personnel that machinery may start without warning.

It is the installer's responsibility to follow all instructions in this manual and to follow correct
electrical practice.

2. Installation

1. Remove control power and mains supply from the soft starter.

2. Attach the module to the soft starter as illustrated.

3. Set the module address to match the address set in the Master configuration tool.

4. Apply control power to the soft starter.

5. Insert the network connector and power up the module.

2.2. Physical Installation

1. Fully pull out the top and bottom retaining clips on the module.

2. Line up the module with the comms port slot.

3. Push in the top and bottom retaining clips to secure the module to the starter.

MG17GA02 - VLT® is a registered Danfoss trademark 1

Configuration MCD Profibus Module Instructions

N.B.!:
The Profibus Module has a slave address range of 0 to 99.

N.B.!:
If the Communication Timeout parameter is set to 0, the current state of the soft
starter will remain unchanged on a network failure. This gives the user the option of
operating the soft starter via local control, but is NOT failsafe.

3. Configuration

Import the latest .gsd file into your Master configuration tool. This file is available from
www.danfoss.com/drives.

If your Master uses on-screen icons, two graphic bitmap files are available from the website.
SSPM_N.bmp indicates normal mode. SSPM_D.bmp indicates diagnostic mode.

If the Profibus network fails, the module will leave data exchange mode after the network
watchdog timeout period has expired. This timeout period is set at the Master configuration tool.

A Communication Timeout parameter in the GSD file sets how soon after this event the soft
starter will be forced into a trip state.

The user can adjust the Communication Timeout parameter in the GSD file to any setting
between 0 and 100 seconds. The default setting is 10 seconds.

4. Adjustment

Before powering up the Profibus Module, set the two rotary switches so that the module address
matches the address set in your Master configuration tool (the diagram shows the factory default
setting for the rotary switches).

The module automatically detects the network data rate.

MG17GA02 - VLT® is a registered Danfoss trademark 2

MCD Profibus Module Instructions Connection

MCD 200

MCD 500

MCD 200

MCD 500 (Auto On mode)

17, 18: Stop

25, 18: Reset

Profibus Module

Profibus Module

External 24 VDC supply required if not
powered through bus

External 24 VDC supply required if not
powered through bus

9-pin Sub-D connector to Profibus
network

9-pin Sub-D connector to Profibus
network

9-pin Sub-D connector

Pin No.

Assignment

1

Shield

2

24 VDC negative (optional)

3

RxD/TxD-P

4

Not used

5

DGND

6

VP (end of bus slave only)

7

24 VDC positive (optional)

8

RxD/TxD/-N

9

DGND

N.B.!:
If MCD 500 parameter 3-2

Comms in Remote

is set to Disable Comms in Remote, the
starter will not accept start or stop commands from the serial network (the starter will
still accept reset commands and allow status monitoring).

5. Connection

The module connects to the Profibus network via a standard 9-pin Sub-D connector.

The Profibus Module can be powered either through the network cable or externally (24 VDC).

MCD 200: For the Profibus Module to accept serial commands, a link must be fitted across
terminals A1-N2 on the soft starter.

In order for the MCD 500 to accept commands from the serial network, the soft starter must be in
Auto On mode and links must be fitted to terminals 17, 18 and 25, 18.

In Hand On mode, the starter will not accept commands from the serial network but the starter's
status can still be monitored.

MG17GA02 - VLT® is a registered Danfoss trademark 3

Power Status LED (Red) and Bus Status LED (Green) MCD Profibus Module Instructions

OFF

ON

Power status
(red)

Module not powered up

Module powered up and
ready to go online

Bus status
(green)

No connection, offline or
data exchange failure

Module online and in data
exchange state

N.B.!:
If communication fails between the module and the network, the Bus Status LED will go
off. When communication is restored, the Bus Status LED will come back on.

N.B.!:
When a communications failure occurs, the soft starter may trip if the Communication
Timeout parameter for the network is set greater than zero. When communication is
restored, the soft starter must be reset.

Data Structure

Basic Module

Extended Module

Parameter Upload/

Download Module

Soft Starter Control I/O
on page 5

  

Soft Starter Monitoring
I/O on page 6

  

Soft Starter Programming
I/O on page 9

  

6. Power Status LED (Red) and Bus Status LED

(Green)

7. Data Structures

The GSD file contains three operating modules, supporting data I/O structures as follows:

The Basic Module allows the user to start and stop the soft starter and read limited information on
operating status.

The Extended Module defines additional bytes allowing the user to read soft starter operating
data such as actual motor current and motor temperature.

The Parameter Upload/Download Module allows the user to read and write soft starter parameter
values (only applicable to MCD 500 soft starters).

MG17GA02 - VLT® is a registered Danfoss trademark 4