Westermo MD-63 User Manual

Omvandlare Opto – RS-485

Converter Opto – RS-485

Glasfaser Wandler – RS-485

INSTALLATIONSANVISNING

INSTALLATION MANUAL

INSTALLATIONS ANLEITUNG

6071-2071

www.westermo.se

MD-63

Profibus

©

Westermo Teleindustri AB • 2001 • REV. B

Galvanic
Isolation

Transient

Protection

Balanced

Transmission

CE

Approved

8 6071-2071

Functional description MD-63 Profibus

MD-63 Profibus is developed for RS-485 point-to-point communication and conversion
between RS-485 and fibre. The unit is specially developed for Profibus and uses a
Profibus standard 9-position D-sub for connection with RS-485. Possibility to connect
to a 5-position screw block is also available.

The fibre optic interface uses ST-connectors and both multi mode and single mode
fibre versions are available. The maximum transmission distance is calculated from the
available power budget of the modems and the attenuation of the cable, splice joints and
connectors. Distances up to 25 km can be reached using single mode fibres. The fibre
optical cable is completely immune to external interference, which makes it ideal for
harsh enviroments.

The modem consists of one F/O channel with separate transmitter and receiver.
On the front of the unit there are also three LED’s indicating the data transmission
on the channel.

MD-63 Profibus can be used at all standard Profibus transmission speeds up to 1.5 Mbit/s
and all operating parameters are set-up via DIP switches easily assessable under the lid
on the top of each unit.

MD-63 Profibus is available in low (LV) and highvoltage (HV) versions. MD-63LV
supports power supplies 12–45V AC ± 5% and 12-55V DC ± 5%. MD-63HV
supports power supplies 95–240V AC ± 5% and 110–240V DC ± 5%

96071-2071

Specifications MD-63 Profibus

Transmission Asynchronous, full/half duplex or simplex
Interface 1 EIA RS-485 / ITU-T V.11 Profibus standard 9-position

D-sub alt. 5-position screw block

Interface 2 Fibre optical 2 ST-connections
Data rate 9.6, 19.2, 93.75, 187.5, 500, 1500kbit/s
Indicators PWR, TD, RD, LINK
Temperature range 5–50°C ambient temperature
Humidity 0–95% RH without condensation
Dimension 55x100x128 mm (WxHxD)
Weight 0.4 kg
Mounting On 35mm DIN-rail
Power supply alternatives

Model description

MD-63HV MD-63LV
PROFIBUS PROFIBUS

Power supply 95–240V AC ± 10% / 12–45V AC ± 10% /

110–240V DC ± 10% 12–55V DC ± 10%
Frequency 48–62Hz / – 48–62Hz / –
Fuse, F1 1A T / 1A T 1A T / 1A T

Wickmann Wickmann
Power consumption 40 mA 3W
Overvoltage protection 430V 430V
Isolation, RMS 3 750V 3 750V

LEDs for indication on MD-63 Profibus

• PWR: Indicates that the unit has power

• TD: Indicates recevied data on Profibus/RS-485 side.

• RD: Indicates transmitting data on Profibus/RS-485 side.

• LINK: Indicates a fibre optic link between the modems.