SMA MD.485-40, PC-485.BG1 Installation Manual

Installation manual

SMA RS485 MODULE

MD.485-40 (PC-485.BG1)

MD485-40-IA-en-10 | Version 1.0ENGLISH

Legal Provisions

The information contained in these documents is property of SMA Solar Technology AG. Any
publication, whether in whole or in part, requires prior written approval by SMA Solar Technology
AG. Internal reproduction used solely for the purpose of product evaluation or other proper use is
allowed and does not require prior approval.

SMA Warranty

You can download the current warranty conditions from the Internet at www.SMA-Solar.com.

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SMA Solar Technology AG

Sonnenallee 1
34266 Niestetal
Germany
Tel. [phone]
Fax [phone]
www.SMA.de
Email: [e-mail]

Status: 9/18/2017
Copyright © 2017 SMA Solar Technology AG. All rights reserved.

Legal Provisions

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Installation manualMD485-40-IA-en-102

Table of Contents

1 Information on this Document................................................. 4

1.1 Validity ............................................................................................... 4

1.2 Target Group ..................................................................................... 4

1.3 Additional Information....................................................................... 4

1.4 Symbols.............................................................................................. 4

1.5 Typographies..................................................................................... 5

1.6 Nomenclature.................................................................................... 5

2 Safety ........................................................................................ 6

2.1 Intended Use...................................................................................... 6

2.2 Safety Information ............................................................................. 6

3 Scope of Delivery ..................................................................... 8

4 Product Description .................................................................. 9

4.1 SMA RS485 Module ........................................................................ 9

4.2 Type Label.......................................................................................... 9

5 Mounting................................................................................... 11

5.1 Mounting position.............................................................................. 11

5.2 Installing the Module......................................................................... 11

6 Connection ................................................................................ 13

6.1 Preparing the Connection Cable...................................................... 13

6.2 Inserting the Cables........................................................................... 13

6.3 Connecting the Cable ....................................................................... 14

7 Decommissioning ..................................................................... 16

7.1 Removing the Module....................................................................... 16

7.2 Packing the Product for Shipment..................................................... 17

7.3 Disposing of the Product ................................................................... 17

8 Technical Data .......................................................................... 18

9 Contact ...................................................................................... 19

10 EU Declaration of Conformity ................................................. 21

Table of Contents

SMA Solar Technology AG

Installation manual 3MD485-40-IA-en-10

1 Information on this Document

1.1 Validity

This document is valid for the SMA RS485 Module (MD.485-40) with assembly designation
"PC-485.BG1" from hardware version A1.

1.2 Target Group

The tasks described in this document must only be performed by qualified persons. Qualified
persons must have the following skills:

• Knowledge of how an inverter works and is operated

• Training in how to deal with the dangers and risks associated with installing and using
electrical devices and installations

• Training in the installation and commissioning of electrical devices and installations

• Knowledge of the applicable standards and directives

• Knowledge of and compliance with this document and all safety information

1.3 Additional Information

Links to additional information can be found at www.SMA-Solar.com:

Document title Document type

"RS485 Cabling Plan" Installation manual

1.4 Symbols

Symbol Explanation

Indicates a hazardous situation which, if not
avoided, will result in death or serious injury

Indicates a hazardous situation which, if not
avoided, can result in death or serious injury

Indicates a hazardous situation which, if not
avoided, can result in minor or moderate injury

Indicates a situation which, if not avoided, can
result in property damage

Information that is important for a specific topic
or goal, but is not safety-relevant

Indicates a requirement for meeting a specific
goal

Desired result

A problem that might occur

1Information on this Document

SMA Solar Technology AG

Installation manualMD485-40-IA-en-104

1.5 Typographies

Typography Use Example

bold

• Display texts

• Elements on a user interface

• Terminals

• Elements to be selected

• Elements to be entered

• The value can be found in
the field Energy.

• Select Settings.

• Enter 10 in the field

Minutes.

>

• Connects several elements to be
selected

• Select Settings > Date.

[Button]
[Key]

• Button or key to be selected or
pressed

• Select [Next].

1.6 Nomenclature

Complete designation Designation in this document

PV system PV system

1 Information on this Document

SMA Solar Technology AG

Installation manual 5MD485-40-IA-en-10

2 Safety

2.1 Intended Use

The SMA RS485 Module enables SMA inverters to establish wired RS485 communication.
The RS485 Module must only be installed in the following SMA inverters:

• STP 50-40 (Sunny Tripower CORE1)

The inverter still complies with the standard after the product has been installed.
The product must only be used in countries for which it is approved or released by SMA Solar

Technology AG and the grid operator.
All components must remain within their permitted operating ranges and their installation

requirements at all times.
Use this product only in accordance with the information provided in the enclosed documentation

and with the locally applicable standards and directives. Any other application may cause
personal injury or property damage.

Alterations to the product, e.g. changes or modifications, are only permitted with the express written
permission of SMA Solar Technology AG. Unauthorized alterations will void guarantee and
warranty claims and in most cases terminate the operating license. SMA Solar Technology AG
shall not be held liable for any damage caused by such changes.

Any use of the product other than that described in the Intended Use section does not qualify as the
intended use.

The enclosed documentation is an integral part of this product. Keep the documentation in a
convenient place for future reference and observe all instructions contained therein.

The type label must remain permanently attached to the product.

2.2 Safety Information

This section contains safety information that must be observed at all times when working on or with
the product.

To prevent personal injury and property damage and to ensure long-term operation of the product,
read this section carefully and observe all safety information at all times.

Danger to life due to high voltages of the PV array

When exposed to light, the PV array generates dangerous DC voltage, which is present in the DC
conductors and the live components of the inverter. Touching the DC conductors or the live
components can lead to lethal electric shocks.

• Prior to performing any work on the inverter, always disconnect the inverter from voltage
sources on the AC and DC sides as described in the inverter manual. When doing so, note
that even if the DC load-break is switched off, there will be dangerous direct voltage present
in the DC conductors of the inverter.

2Safety

SMA Solar Technology AG

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Damage to seals on the enclosure lids in subfreezing conditions

If you open the enclosure lids when temperatures are below freezing, the enclosure seals can be
damaged. This can lead to moisture entering the inverter.

• Only open the enclosure lids if the ambient temperature is not below -5°C

• If a layer of ice has formed on the seal of the lid when temperatures are below freezing,
remove it prior to opening the enclosure lids (e.g. by melting the ice with warm air). Observe
the applicable safety regulations.

Damage to the inverter or product due to electrostatic discharge

Touching electronic components can cause damage to or destroy the inverter or the product
through electrostatic discharge.

• Ground yourself before touching any component.

2 Safety

SMA Solar Technology AG

Installation manual 7MD485-40-IA-en-10