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For addi onal informa on, please contact uswww.teslights.com - [email protected]

Contact Informa on 2

Warning 2

Disclaimer 2

1. Overview 3

1.1 Remote Relay MR-4850 3

1.2 Block Diagram MR-4850 4

2. Electrical Specifi ca ons 5

3. Environment 5

4. Dimensions and weight 6

5. Approvals 6

6. MODBUS Func ons 7

6.1 Write relay output (16#05) 7

6.2 Read relay state (16#01) 7

7. Installa ons, cau ons and warnings 8

8. Product Limited Warranty 8

9. Release dates 8

Contents

Technical Manual,R1515April 2015

Document Number: 853301-1515Copyright Teslights, LLC

2014-2015

Teslights B-PLC SolutionActuator MR-4850

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Node NT-8980Document Number: 01012015-NT-8980


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Please contact as indicated below, for:• General informa on,

[email protected]• Website,

h p://www.teslights.com

This guide is for persons who have received training and are qualifi ed to work with electricity and electrical metering equipment. All applicable na onal and local electrical codes and standards must be followed. Failure to follow proper procedures may result in serious bodily harm including death.

The informa on in this guide has been compiled with care, but Teslights, LLC makes no warran es as to the accuracy or completeness. Further, the product described herein may be changed or enhanced from me to me. This informa on does not cons tute commitments or representa ons by Teslights, LLC and is

subject to change without no ce.

Images shown are a representa on only. They may not match exactly with the real equipment.

Contact Informa on

Warning

Disclaimer



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The remote relay MR-4850 is the device that permits to switch on and off a resis ve load up to 4Aremotely. This device has an RS-485 communica on, with MODBUS protocol. It is possible toconnect up to 127 devices on the same bus.

Integra ng:

• Mains powered device, is not necessary to add any power adapter.• Termina on resistor for RS-485 included, selectable with a micro-switch.• MODBUS RTU compliant.• Selectable device address with a micro-switch, up to 127 addresses.

The MR-4850 can be connected directly to a CA-9009 Head End. It permits to control diff erentpower circuits. For loads greater than 4A, it is strongly recommended to use a controlled circuitbreaker.

1. Overview

1.1 Remote Relay MR-4850



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1.2 Block Diagram MR-4850



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2. Electrical Specifi ca ons

3. Environment

Input

Output VAC1

Input voltage range (VAC): 100 ~ 277 VACInput frequency: 50 ~ 60 HzPower factor: > 0.80Maximum power: 1W

Output voltage range (VAC): 100 ~ 277 VACMaximum output current: 4AMaximum output power: 400W

Usage for open type applica ons:

• IEC2 60529, IP-54.

• Nema3, Type-1.

Environment working temperature: -25 ºC ~ 60ºC.

Environment storage temperature: -25 ºC ~ 85ºC.

TC: 65 ºC

1. The maximum charge is defi ned by the maximum power and maximum current, the one it reach before.

2. Interna onal Electrotechnical Commission, 3 Rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland

3. Na onal Electrical Manufacturers Associa on, 1300 North 17th Street, Rosslyn, VA 22209



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4. Dimensions and weight

• Enclosure 3MDH53.• 100 g.

5. Approvals

Pending.



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6. MODBUS Func ons

6.1 Write relay output (16#05)

6.2 Write relay output (16#05)

Request:

Request:

Relay enable example (close contact)Relay disable example (open contact)

Read relay status

Relay enable example (close contact)Relay disable example (open contact)

Read relay closedRead relay opened

Response:

Response:

Below are detailed the MODBUS func ons implemented on the MR-4850:

Device Address1 Byte

Func on 1 Byte

Start address2 Bytes

Data2 Bytes

CRC2 Bytes

03 05 00 00 FF 00 8D D803 05 00 00 00 00 CC 28


Func on 1 Byte


Count2 Bytes

CRC2 Bytes

03 01 00 00 00 01 FC 28


Func on 1 Byte


Data2 Bytes

CRC2 Bytes

03 05 00 00 FF 00 8D D803 05 00 00 00 00 CC 28


Func on 1 Byte

Count1 Byte

Status1 Byte

CRC2 Bytes

03 01 01 01 91 F003 01 01 01 50 30



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• Do not install if the device is damaged. Inspect the box for obvious defects such as cracks in the housing.

• This device doesn’t have replaceable or interchangeable elements, so it mustn’t be manipulated.

• If the device is installed or used in a manner not specifi ed by the accompanying documents, the safety of the device may be impaired.

• If the device func ons abnormally, proceed with cau on. The safety of the device may be impaired.

• Do not install around combus ble gas or gas vapor.

• Do not install in an electrical service with current or voltage outside of the specifi ed limit of the device.

• Do not operate this device with the cover removed.

• Beware of working around this device when the voltage is live. There is a risk of electric shock.

• Check that all connec ons are reliable and correct before connec ng the device to the voltage line.

• See instruc ons for connec on diagrams.

Teslights, LLC warrants its equipment for 2 years from the ship date against defects in material or workmanship when installed in accordance with manufacturer’s instruc ons by qualifi ed personnel.

This warranty does not cover installa on, removal, reinstalla on or labor costs and excludes normal wear and tear. The warranty does not cover product which has been altered from its original manufactured condi on due to faulty installa on, tampering, accident, neglect, abuse, force majeure or abnormal condi ons of opera on.

Obliga on under this warranty is limited to repair and/or replacement, at Teslights LLC’s op on, ofthe manufactured product and in no event shall Teslights, LLC be liable for consequen al or incidental damages.

7. Installa ons, cau ons and warnings

8. Product Limited Warranty

9. Release dates

Manual Revision No. Release Date(dd/mm/yyyy)

MR-4850 R5114 23/12/2014

MR-4850 R1515 10/05/2015

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