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INSTALLATION MANUAL |
AB • 2003 • REV.A |
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TeleindustriWestermo |
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6157-2213 |
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Galvanic |
Transient |
Balanced |
CE |
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Isolation |
Protection |
Transmission |
Approved |
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Converter RS-232 – RS-422/485
www.westermo.us
Contents
1. |
Introduction ............................................................................................................................................................... |
3 |
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2. |
Safety .................................................................................................................................................................................. |
4 |
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3. |
Approvals ....................................................................................................................................................................... |
4 |
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3.1 |
Declaration of conformity ........................................................................................................................ |
5 |
4. |
Specifications ............................................................................................................................................................ |
6 |
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4.1 |
Interfaces ............................................................................................................................................................... |
6 |
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4.2 |
Insulation between interfaces ................................................................................................................ |
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4.3 |
Climatic environment .................................................................................................................................. |
7 |
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4.4 |
Mechanics .............................................................................................................................................................. |
7 |
5. |
Maintenance .............................................................................................................................................................. |
7 |
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6. |
Installation ................................................................................................................................................................... |
8 |
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6.1 |
Mounting /Removal ........................................................................................................................................ |
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6.2 |
Connections ......................................................................................................................................................... |
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6.2.1 LED indicators ........................................................................................................................................ |
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6.2.2 Power (MD-45 HV,AC) ................................................................................................................. |
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6.2.3 Power (MD-45 LV) ............................................................................................................................ |
10 |
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6.2.4 Line connection (RS-422/485) ................................................................................................. |
10 |
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6.2.5 Terminal connection (RS-232, DCE) .................................................................................. |
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6.3 |
Configuration ................................................................................................................................................... |
11 |
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6.3.1 DIP switch settings ................................................................................................................. |
11–12 |
7. |
Functional description .............................................................................................................................. |
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7.1 |
Block diagram ................................................................................................................................................. |
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7.2 |
2 Line connection ......................................................................................................................................... |
14 |
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7.3 |
Hints ....................................................................................................................................................................... |
14 |
2 |
6157-2213 |
1. Intruduction
The MD-45 is used to convert between RS-422/485 and RS-232/V.24 signals.This device is often used in multidrop applications connected to a PC or PLC.
In 2-wire half duplex applications (RS-485) the direction of the bus can be controlled by data which means that the converter turns the bus depending on the data sent on the bus. This makes it possible to use the unit with equipment that has no handshaking signals.The maximum transmission rate possible is 115.2 kbit/s.
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LD-01 DC |
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CHANNEL 2 |
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POWER |
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LD-01 DC |
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CHANNEL 2 |
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POWER |
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LD-01 DC |
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CHANNEL 2 |
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POWER |
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6157-2213 |
3 |
2. Safety
General:
!Before using this unit, read this manual completely and gather all information on the unit. Make sure that you understand it fully. Check that your application does not exceed the safe operating specifications for this unit.
!Before installation, maintenance or modification work:
Prevent damage to internal electronics from electrostatic discharges (ESD) by discharging your body to a grounding point (e.g. use of wrist strap). Prevent access to hazardous voltages by disconnecting the unit from AC/DC mains supply and all other electrical connections.
!Installation:
This unit should only be installed by qualified personnel.
This unit should only be installed in a “restricted access area”, for example a lockable cabinet where access is restricted to service personnel only.
This unit is intended for permanent connection to the AC/DC mains supply.
The power supply wiring must be sufficiently fused, and if necessary it must be possible to disconnect manually from the AC/DC mains supply. Ensure compliance to national installation regulations.
Unit with the rated voltage exceeding 42.4 V peak or 60 VDC, is defined as class I equipment with a protective earthing conductor terminal.
Unit with the rated voltage up to 42.4 V peak or 60 VDC, is defined as class III equipment and shall be separated from hazardous voltage by double or reinforced insulation.
This unit uses convection cooling.To avoid obstructing the air flow around the unit, follow the spacing recommendations (see under chapter Installation).
3. Approvals
Conformity with the Directive 73/23/EEC (Low Voltage Directive) has been assessed by application of the standard EN 60 950.
Conformity with the Directive 89/339/EEC (Electromagnetic compatibility)
has been assessed by application of standards EN 61000-6-2 (industrial immunity) and EN 61000-6-3 (residential emission).
4 |
6157-2213 |
3.1 Declaration of conformity
Westermo Teleindustri AB
Declaration of conformity
The Westermo Teleindustri AB company declares that the listed products conforms to the Council Directive 89/336/EEC, related to Electro Magnetic Compability and 72/23/EEC Low Voltage Directive.
Type of equipment: DIN-rail converter RS232-RS422/485 |
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Model: |
MD-45 AC |
3157-0101, 3157-0110 |
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MD-45 HV |
3157-1101 |
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MD-45 LV |
3157-0001 |
Standards: |
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EMC: |
EN 61000-6-3/CISPR22(EN 55022): Class B |
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EN 61000-6-2/EN 61000-4-2 |
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EN 61000-6-2/EN 61000-4-3 |
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EN 61000-6-2/EN 61000-4-4 |
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EN 61000-6-2/EN 61000-4-5 |
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EN 61000-6-2/EN 61000-4-6 |
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EN 61000-6-2/EN 61000-4-11 |
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EN 61000-6-2/EN 61000-4-16 |
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Safety: |
EN 60950 |
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Reference: |
Installation manual MD-45 AC/HV,LV Art. Nr. 6157-2003 |
Hans Levin
Technical Manager
May 2003
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Org.nr/ |
S‰te/ |
Postadress/Postal address |
Tel. |
Telefax |
Postgiro |
Bankgiro |
Corp. identity number |
Registered office |
S-640 40 Stora Sundby |
016 - 42 80 00 |
016 ñ 42 80 01 |
52 72 79-4 |
5671-5550 |
556361-2604 |
Eskilstuna |
Sweden |
Int +46 16 42 80 00 |
Int +46 16 42 80 01 |
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6157-2213 |
5 |