WSTECH APS Series Original Operating Instructions

Original Operating Instructions

APS Series – Outdoor Hybrid Inverter

Table of Contents

APS-Series 120 Operating Instructions v320 EN

Original Operating Instructions

APS Series – Outdoor Hybrid Inverter

WSTECH is a Wind&Sun Technologies and Siemens Joint Venture.

Before starting any work, please read "Original Operating

Instructions" and "Function and Interface Description"!

 
 
Original Operating Instructions 
APS Series – Outdoor Hybrid Inverter 
Table of Contents 
 
APS-Series 120 Operating Instructions v320 EN 
Page 2 of 213 
Table of Contents 
User Information ...................................................................................... 11 
1  Identification of the Product........................................................................... 12 
2  Scope ........................................................................................................... 15 
3  Target Audience ........................................................................................... 15 
4  General Information ...................................................................................... 16 
4.1  Related Documents ............................................................................... 16 
4.2  Symbols ................................................................................................. 17 
4.3  Terms and Abbreviations ....................................................................... 19 
5  Intended Use ................................................................................................ 20 
6  Safety Instructions ........................................................................................ 22 
7  Safety Sign on the Product ........................................................................... 24 
8  Safety Sign on the Packaging ....................................................................... 25 
9  Cleaning ....................................................................................................... 26 
Description ............................................................................................... 27 
1  Functional Description .................................................................................. 27 
2  Schematic Structure ..................................................................................... 27 
3  Functional Extensions ................................................................................... 30 
4  Options ......................................................................................................... 31 
4.1  Option Seismic IEEE 693....................................................................... 33 
4.2  Option Insulation Monitoring External .................................................... 34 
4.3  Option Insulation Monitoring Negative/Positive Grounding ..................... 34 
5  Views ............................................................................................................ 35 
5.1  Exterior View ......................................................................................... 35 
5.2  Interior View........................................................................................... 37 
Packaging, Transport, Delivery, Storage ............................................... 42 
1  Packaging ..................................................................................................... 42 
1.1  Distribution on Special Pallets................................................................ 42 
1.2  Transport with Wooden Box ................................................................... 45 
2  Transport of APS without Cooling Tower ...................................................... 47 
2.1  Centre of Gravity.................................................................................... 48 
2.2  Transport with Hoisting Gear (APS with 1-2 APUs) ................................ 49 
2.3  Transport with Crane ............................................................................. 50 
2.4  Container Loading ................................................................................. 51 
3  Delivery ........................................................................................................ 52 

 
 
APS-Series 120 Operating Instructions v320 EN 
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4  Storage ......................................................................................................... 54 
Installation ................................................................................................ 55 
1  Protection of Components ............................................................................ 56 
2  Installation Site ............................................................................................. 57 
2.1  Hole Dimension of the APS Carrier ........................................................ 61 
2.2  Surfaces ................................................................................................ 64 
2.3  Centroid (Geometric Centre) .................................................................. 64 
2.4  Centre of Gravity for APS with Cooling Tower ....................................... 65 
2.5  Maximum permissible Wind Speed ........................................................ 65 
2.6  Cable Entry Areas.................................................................................. 66 
2.7  Safety Areas .......................................................................................... 71 
3  Obligatory Activities after Transport .............................................................. 74 
3.1  Checking the Doors ............................................................................... 74 
3.2  Positioning the Door Switches ............................................................... 78 
4  Cooling Tower............................................................................................... 79 
4.1  Mounting Cooling Tower ........................................................................ 79 
4.2  Mounting the Radial Fan ........................................................................ 84 
4.3  Connecting Cooling Tower ..................................................................... 86 
4.4  Filling and Draining Cooling System ...................................................... 88 
5  MV Skid (Accessory)..................................................................................... 91 
5.1  Mounting MV Skid.................................................................................. 91 
5.2  Sealing against Water and Dust ............................................................. 92 
6  Electrical Connection .................................................................................... 94 
6.1  Interfaces of the Electrical Connections ................................................. 95 
6.2  Grounding .............................................................................................. 96 
6.3  AC Connection ...................................................................................... 98 
6.4  DC Connection (Versions with 1000 V
DC
 and 1500 V
DC
) ...................... 106 
7  Supply Voltage............................................................................................ 111 
7.1  Interfaces for the Supply Voltage ......................................................... 111 
8  Data Communication .................................................................................. 116 
8.1  Communication Interfaces ................................................................... 117 
9  Connecting of MV Skid Interfaces ............................................................... 118 
9.1  MV Skid monitored by the APS ............................................................ 118 
9.2  MV Skid not monitored by the APS ...................................................... 120 
10  Connection of the Irradiation/Temperature Sensor (optional) ...................... 121 
11  After Installation .......................................................................................... 122 

 
 
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Page 4 of 213 
Commissioning ...................................................................................... 123 
1  Preparing Commissioning ........................................................................... 125 
2  Starting the Product .................................................................................... 127 
3  Stopping the Product .................................................................................. 127 
Operation ................................................................................................ 128 
1  User Interface ............................................................................................. 128 
2  Operating Modes ........................................................................................ 128 
3  Resetting VNC Password ........................................................................... 128 
4  Assignment of the Digital Outputs ............................................................... 129 
5  Enable Switch ............................................................................................. 129 
Troubleshooting..................................................................................... 130 
1  APS Error Codes ........................................................................................ 131 
1.1  APS Error Codes 3, 4 .......................................................................... 132 
1.2  APS Error Code 5 ................................................................................ 132 
1.3  APS Error Code 7 ................................................................................ 132 
1.4  APS Error Code 8 ................................................................................ 132 
1.5  APS Error Code 9 ................................................................................ 132 
1.6  APS Error Code 19 .............................................................................. 132 
1.7  APS Error Code 24 .............................................................................. 133 
1.8  APS Error Codes 30-33 ....................................................................... 133 
1.9  APS Error Codes 36-39 ....................................................................... 133 
1.10  APS Error Code 45 .............................................................................. 133 
1.11  APS Error Codes 46-49 ....................................................................... 133 
1.12  APS Error Codes 50 ............................................................................ 134 
1.13  APS Error Codes 51 ............................................................................ 134 
1.14  APS Error Codes 57 ............................................................................ 134 
2  APS Warning Codes ................................................................................... 135 
2.1  APS Warning Codes 1, 2 ..................................................................... 136 
2.2  APS Warning Code 5 ........................................................................... 136 
2.3  APS Warning Code 6 ........................................................................... 136 
2.4  APS Warning Codes 10, 11, 13, 14 ..................................................... 136 
2.5  APS Warning Codes 29-32 .................................................................. 137 
2.6  APS Warning Codes 54-57 .................................................................. 137 
2.7  APS Warning Code 58 ......................................................................... 137 
2.8  APS Warning Code 59 ......................................................................... 137 
2.9  APS Warning Code 69 ......................................................................... 137 

 
 
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3  APU Error Codes ........................................................................................ 138 
3.1  APU Error Codes 1-4, 44, 89, 100 ....................................................... 140 
3.2  APU Error Codes 5-11, 40, 48-52, 79, 84-88, 107 ............................... 140 
3.3  APU Error Codes 16-36, 96-99, 102-105, 108-110 .............................. 140 
3.4  APU Error Codes 46, 47, 53, 54, 56-59, 92, 93 .................................... 140 
3.5  APU Error Codes 60, 61 ...................................................................... 140 
3.6  APU Error Code 62 .............................................................................. 140 
3.7  APU Error Codes 63-65, 95, 106 ......................................................... 140 
Maintenance ........................................................................................... 141 
1  Maintenance every 12 Month ...................................................................... 142 
2  Maintenance in De-energized Condition ..................................................... 142 
2.1  Visual Inspection of the Housing .......................................................... 142 
2.2  Check of the Covers and Doors ........................................................... 142 
2.3  Visual Inspection of the Interior Area ................................................... 143 
2.4  Cleaning the Air Ducts ......................................................................... 143 
2.5  Torque Check of the Electrical Connections ........................................ 143 
2.6  Condition Check of the Cables and Lines ............................................ 144 
2.7  Condition Check of the Fuses .............................................................. 144 
2.8  Check of the Cooling System ............................................................... 144 
3  Maintenance every 48 Months .................................................................... 147 
3.1  Changing of the Cooling Fluid .............................................................. 147 
Decommissioning .................................................................................. 148 
Disposal .................................................................................................. 149 
Customer Service .................................................................................. 150 
Appendix ................................................................................................ 151 
1  Spare Parts List .......................................................................................... 151 
2  Technical Data ............................................................................................ 153 
3  Typical Checklist for Commissioning ........................................................... 209 
4  EU Declaration of Conformity ...................................................................... 212 
 
 

 
 
Original Operating Instructions 
APS Series – Outdoor Hybrid Inverter 
List of Figures 
 
APS-Series 120 Operating Instructions v320 EN 
Page 6 of 213 
List of Figures 
Figure 1: APS with 1-2 APUs ...................................................................................... 12 
Figure 2: APS with 3-4 APUs ...................................................................................... 12 
Figure 3: Product identification of APS series ............................................................. 12 
Figure 4: Example of a type plate ................................................................................ 13 
Figure 5: Example of an option plate ........................................................................... 14 
Figure 6: Schematic structure (APS with 1-2 APUs) .................................................... 28 
Figure 7: Schematic structure (APS with 3-4 APUs) .................................................... 29 
Figure 8: Interior view front Seismic with protective cover ........................................... 33 
Figure 9: Interior view back Seismic with protective cover ........................................... 33 
Figure 10: Interior view control unit Seismic ................................................................ 33 
Figure 11: Detail view stiffening strive ......................................................................... 33 
Figure 12: Detail view mounting point ......................................................................... 33 
Figure 13: Exterior view front ...................................................................................... 35 
Figure 14: Exterior view back ...................................................................................... 35 
Figure 15: Dimensioning dehumidifier outlet (bottom view) ......................................... 36 
Figure 16: Interior view front with protective cover ...................................................... 37 
Figure 17: Interior view back with protective cover ...................................................... 37 
Figure 18: Interior view front ....................................................................................... 38 
Figure 19: Harmonic filter (detail view of interior view front) ........................................ 39 
Figure 20: Interior view back ....................................................................................... 40 
Figure 21: Interior view control unit ............................................................................. 41 
Figure 22: Packaging information – cooling tower ....................................................... 43 
Figure 23: Cooling tower on the pallet ......................................................................... 44 
Figure 24: APS with 1-2 APUs on the pallet ................................................................ 44 
Figure 25: APS with 3-4 APUs on the pallet ................................................................ 44 
Figure 26: Transport wooden box with pallet (dimensioned) (APS with 1-2 APUs) ...... 45 
Figure 27: Transport wooden box with pallet (dimensioned) (APS with 3-4 APUs) ...... 45 
Figure 28: Transport wooden box with pallet (dimensioned) (cooling tower) ............... 46 
Figure 29: Centre of gravity symbol ............................................................................ 48 
Figure 30: Centre of gravity (APS with 1-2 APUs) ....................................................... 48 
Figure 31: Centre of gravity (APS with 3-4 APUs) ....................................................... 48 
Figure 32: Transport with hoisting gear (APS with 1-2 APUs) ..................................... 49 
Figure 33: Crane transport .......................................................................................... 50 
Figure 34: Container Loading ...................................................................................... 51 
Figure 35: Schematic view of the foundation ............................................................... 60 

 
 
Original Operating Instructions 
APS Series – Outdoor Hybrid Inverter 
List of Figures 
 
APS-Series 120 Operating Instructions v320 EN 
Page 7 of 213 
Figure 36: Exterior view front (APS with 1-2 APUs)..................................................... 61 
Figure 37: Hole dimension of the APS carrier (APS with 1-2 APUs) ............................ 61 
Figure 38: Exterior view front (APS with 3-4 APUs)..................................................... 62 
Figure 39: Hole dimension of the APS carrier (APS with 3-4 APUs) ............................ 63 
Figure 40: Height and length definition of APS ............................................................ 64 
Figure 41: Centroid (geometric centre) (APS with 1-2 APUs) ...................................... 64 
Figure 42: Centroid (geometric centre) (APS with 3-4 APUs) ...................................... 64 
Figure 43: Centre of gravity (APS with 1-2 APUs and cooling tower) .......................... 65 
Figure 44: Centre of gravity (APS with 3-4 APUs and cooling tower) .......................... 65 
Figure 45: Cable entry areas (APS with 1-2 APUs) ..................................................... 66 
Figure 46: Cable entry areas (APS with 3-4 APUs) ..................................................... 67 
Figure 47: Cable entry areas (APS with 3-4 APUs and MV skid) ................................. 68 
Figure 48: Example cable entries AC connection ........................................................ 69 
Figure 49: Cable entry DC connection (bottom view) .................................................. 70 
Figure 50: Safety area (APS with 1-2 APUs) ............................................................... 71 
Figure 51: Safety area (APS with 3-4 APUs) ............................................................... 72 
Figure 52: Safety area (APS with 3-4 APUs and MV skid) .......................................... 73 
Figure 53: Door hinge (without protective cover) ......................................................... 74 
Figure 54: Top of APS cabinet (without top cover) ...................................................... 74 
Figure 55: Check door position ................................................................................... 75 
Figure 56: Condition of door gaskets .......................................................................... 76 
Figure 57: Check of screw connections....................................................................... 76 
Figure 58: Door closing mechanism ............................................................................ 77 
Figure 59: Door switch ................................................................................................ 78 
Figure 60: Positioning door switch .............................................................................. 78 
Figure 61: Service access to wet location (with cover) ................................................ 80 
Figure 62: Service access to dry location (without cover) ............................................ 80 
Figure 63: Cooling tower without top cover (top view) ................................................. 80 
Figure 64: Positioning of cooling tower........................................................................ 81 
Figure 65: Mounting the outer area of the cooling tower (detail view) .......................... 82 
Figure 66: Mounting the inner area of the cooling tower (detail view) .......................... 82 
Figure 67: Applying the cabinet sealing on the top cover ............................................ 83 
Figure 68: Positioning the radial fan ............................................................................ 84 
Figure 69: Mounting the radial fan ............................................................................... 84 
Figure 70: Terminal strip (-X205.3) ............................................................................. 85 
Figure 71: Connection of radial fans ........................................................................... 85 
Figure 72: Connection of cooling tower ....................................................................... 86 

 
 
Original Operating Instructions 
APS Series – Outdoor Hybrid Inverter 
List of Figures 
 
APS-Series 120 Operating Instructions v320 EN 
Page 8 of 213 
Figure 73: Connection of coded plug connector .......................................................... 87 
Figure 74: Tank cover of water-air heat exchanger ..................................................... 89 
Figure 75: Ball valves of cooling system (in position ON) ............................................ 89 
Figure 76: Attaching the MV skid to APS .................................................................... 91 
Figure 77: Cover sealing ............................................................................................. 93 
Figure 78: Interfaces of the electrical connections ...................................................... 95 
Figure 79: Earth connection ........................................................................................ 97 
Figure 80: Sectional view of MV skid and APS cable connection ................................ 98 
Figure 81: Example of the AC connection ................................................................. 100 
Figure 82: AC connection (APS with 2 APUs) ........................................................... 101 
Figure 83: AC connection (APS with 3 APUs) ........................................................... 102 
Figure 84: AC connection (APS with 4 APUs) ........................................................... 103 
Figure 85: Dimensioning of the AC connection ......................................................... 104 
Figure 86: Dimensioning of the AC connection (detail view) ...................................... 105 
Figure 87: DC connection (1000 V
DC
) (detail view) .................................................... 107 
Figure 88: DC connection (1500 V
DC
) (detail view) .................................................... 107 
Figure 89: DC connection ......................................................................................... 109 
Figure 90: 1000 V
DC
 fuse holder right view ................................................................ 110 
Figure 91: 1000 V
DC
 fuse holder top view .................................................................. 110 
Figure 92: 1000 V
DC
 fuse holder left view .................................................................. 110 
Figure 93: 1500 V
DC
 fuse holder top view .................................................................. 110 
Figure 94: 1500 V
DC
 fuse holder front view................................................................ 110 
Figure 95: External supply by the customer .............................................................. 112 
Figure 96: Supply voltage for customer installation area ........................................... 113 
Figure 97: Buffered supply voltage customer installation area and internal control ... 115 
Figure 98: Data communication connection .............................................................. 116 
Figure 99: Interfaces for data communication ........................................................... 117 
Figure 100: Connection of MV skid interfaces when monitored by the APS .............. 119 
Figure 101: Connection of MV skid interfaces when not monitored by the APS ........ 120 
Figure 102: Connection of the irradiation and temperature sensor ............................ 121 
Figure 103: Routing temperature sensor ................................................................... 125 
Figure 104: Position temperature sensor .................................................................. 125 
Figure 105: Current transformers on inductor connections (Sections +C3, +C6) ....... 125 
Figure 106: Distance between current transformer cable and inductor ...................... 125 
Figure 107: Connecting current transformer plug ...................................................... 126 
Figure 108: Properly connected current transformer plug (side view) ........................ 126 
Figure 109: Danger areas (interior view front) ........................................................... 129 

Original Operating Instructions

APS Series – Outdoor Hybrid Inverter

List of Figures

APS-Series 120 Operating Instructions v320 EN

Page 9 of 213

Figure 110: Danger areas (interior view back) ........................................................... 129

Figure 111: Torque check screwed heat sink ............................................................ 145

Figure 112: Tank cover of water-air heat exchanger ................................................. 146

 
 
Original Operating Instructions 
APS Series – Outdoor Hybrid Inverter 
List of Tables 
 
APS-Series 120 Operating Instructions v320 EN 
Page 10 of 213 
List of Tables 
Table 1: Naming convention ....................................................................................... 19 
Table 2: Allocation of schematic structures ................................................................. 27 
Table 3: Scope of delivery........................................................................................... 52 
Table 4: Separate package for APS ............................................................................ 52 
Table 5: Separate package – cooling tower ................................................................ 53 
Table 6: Cabinet keys ................................................................................................. 53 
Table 7: Accessories ................................................................................................... 53 
Table 8: Protection of components (Section +C1) ....................................................... 56 
Table 9: Surfaces of the APS ...................................................................................... 64 
Table 10: Required material for one cooling tower ...................................................... 79 
Table 11: Required material for one cooling tower (option Seismic IEEE 693) ............ 79 
Table 12: Required material for one cooling tower – construction adhesive ................ 83 
Table 13: Required material for one radial fan ............................................................ 84 
Table 14: Full expansion behaviour of the sealing strip ............................................... 92 
Table 15: Ampacity of AC terminals (APS with 1 APU) ............................................... 99 
Table 16: Ampacity of AC terminals (APS with 2 APUs) ............................................. 99 
Table 17: Ampacity of AC terminals (APS with 3 APUs) ............................................. 99 
Table 18: Ampacity of AC terminals (APS with 4 APUs) ............................................. 99 
Table 19: AC connection ........................................................................................... 101 
Table 20: Connection on DC fuse holder .................................................................. 108 
Table 21: Assignment of DOs ................................................................................... 129 
Table 22: Extract of APS Error Codes ....................................................................... 131 
Table 23: Extract of APS Warning Codes ................................................................. 135 
Table 24: Extract of APU Error Codes....................................................................... 138 
Table 25: Extract of APU Error Codes (continued) .................................................... 139 
Table 26: Maintenance in de-energized condition (every 12 month) ......................... 142 
Table 27: Torque of electrical connections ................................................................ 143 
Table 28: Dosage of glycol........................................................................................ 146 
Table 29: Maintenance in de-energized condition (every 48 months) ........................ 147 
Table 30: Spare parts list for all products .................................................................. 151 
Table 31: Additional spare parts list (APS with 1000 V
DC
) ......................................... 152 
Table 32: Additional spare parts list (APS with 1500 V
DC
) ......................................... 152 
 

Original Operating Instructions

APS Series – Outdoor Hybrid Inverter

User Information

APS-Series 120 Operating Instructions v320 EN

Page 11 of 213

1 User Information

Thank you for purchasing an APS Outdoor Hybrid Inverter. By purchasing this Outdoor

Hybrid inverter, you have chosen a high-quality WSTECH product. If you have

questions about the application, please contact in[email protected].

Legal Information

from manufacturer.

Trademarks

All trademarks are recognized, even if they are not identified as such.

EtherCAT® is a registered trademark and patented technology, licensed by Beckhoff

Automation GmbH, Germany.

Modbus® fieldbus is a registered trademark of Schneider Electric and is licensed by

the Modbus Organization, Inc.

QR Code is a registered trademark of DENSO WAVE INCORPORATED.

Torx® is a registered trademark of Acument Global Technologies, Inc.

Manufacturer

WSTECH GmbH

Eckernfoerder Landstraße 78

D-24941 Flensburg

Tel.: +49-(0) 461-430122-0

Fax: +49-(0) 461-430122-11

E-Mail: info@wstech.com

Web: www.wstech.com

Issue: 09/2019

Original Operating Instructions

APS Series – Outdoor Hybrid Inverter

User Information

APS-Series 120 Operating Instructions v320 EN

Page 12 of 213

1.1 Identification of the Product

Figure 1 and Figure 2 show the difference of an APS with 1-2 APUs and 3-4 APUs.

Figure 1: APS with 1-2 APUs

Figure 2: APS with 3-4 APUs

The product identification of the APS series is illustrated in Figure 3.

Figure 3: Product identification of APS series

Original Operating Instructions

APS Series – Outdoor Hybrid Inverter

User Information

APS-Series 120 Operating Instructions v320 EN

Page 13 of 213

The type plates (Figure 4) and option plates (Figure 5) of the APS Outdoor Hybrid

Inverter (hereinafter referred to as APS or product) are located at the bottom-right of

the front side as well as inside of the control unit).

Figure 4: Example of a type plate

Pos.

Description

1

Manufacturer

2

Hardware version (HW) and wiring diagram version (WD)

3

Technical data DC side

4

Degree of protection

5

WEEE identification

6

Technical data AC side

7

Product identification

8

Serial number

Original Operating Instructions

APS Series – Outdoor Hybrid Inverter

User Information

APS-Series 120 Operating Instructions v320 EN

Page 14 of 213

Figure 5: Example of an option plate

Original Operating Instructions

APS Series – Outdoor Hybrid Inverter

User Information

APS-Series 120 Operating Instructions v320 EN

Page 15 of 213

1.2 Scope

The original operating instructions (hereinafter referred to as operating instructions) are

valid for the following products:

• APS Series (hardware version: 120, wiring diagram version: 3XX)

The illustrations used in these operating instructions are reduced to the essentials and

may differ from the delivered product. The Manufacturer may change these operating

instructions and content therein.

1.3 Target Audience

All work on the product must be performed by qualified electricians.

Qualified electricians in the sense of these operating instructions are persons familiar

with installation, mounting, commissioning, operating, troubleshooting, maintenance

and disposal of this product. They are familiar with the hazards involved as well as

work- and safety regulations and have the appropriate qualifications. They know how

batteries and PV modules work and are operated.

Unauthorized persons are not allowed to operate the product. These persons must

keep a safe distance from the product.

The transport of the product must be performed by trained and authorized persons,

who have the appropriate qualifications.

Original Operating Instructions

APS Series – Outdoor Hybrid Inverter

User Information

APS-Series 120 Operating Instructions v320 EN

Page 16 of 213

1.4 General Information

These operating instructions provide detailed information regarding specifications,

installation procedures, operation, commissioning, troubleshooting, maintenance,

decommissioning, technical data, safety procedures and function settings of the

product. The operating instructions and the related documents exist only in electronic

form.

The manufacturer constantly adapts its products according to the latest state of the art

of scientific and technology and therefore it assumes, that its products are free from

defects in the sense of product liability. However, it cannot be excluded that during

operation in critical application areas additional safety measures can be necessary.

The manufacturer requests the user of its products, in their own interest, to inform his

contractors and the manufacturer about the application of its products to initiate

possible additional safety measures.

The utilization and the service life of the product, as well as the avoidance of premature

repairs depend on the proper commissioning, operation maintenance and care. For

professional maintenance always follow the instructions contained in these operating

instructions.

The manufacturer recommends the notice of these operating instructions to be

acknowledged in writing by the personnel and noted in the personnel file.

The manufacturer recommends translation of these operating instructions into the

native languages of any foreign workers.

1.4.1 Related Documents

The related documents are shown below. The marked documents are provided on a

USB stick in the control unit (Section +C1).

• Additional technical data

• APS-Configuration sheet (if available) (*)

• Customer specific wiring diagram (if available) (*)

• Data sheets

• Function and Interface Description (*)

• Test report (*)

• Wiring diagram (*)

Original Operating Instructions

APS Series – Outdoor Hybrid Inverter

User Information

APS-Series 120 Operating Instructions v320 EN

Page 17 of 213

1.4.2 Symbols

Symbol

Description

DANGER!

Indicates a direct danger situation which will lead to death or severe

injury.

WARNING!

Indicates a possible danger situation which can lead to death or severe

injury.

CAUTION!

Indicates a possible danger situation which can lead to lesser or lighter

injury.

NOTICE

Indicates a possible danger situation which can lead to damage to

property or to the environment.

Use head protection.

Wear hearing protection.

Use hand protection.

Use eye protection.

Disconnect and safeguard against reconnection.

Pay attention to supplementary documents to these operating

instructions.

Harmful substances

Substances hazardous to the human health

Original Operating Instructions

APS Series – Outdoor Hybrid Inverter

User Information

APS-Series 120 Operating Instructions v320 EN

Page 18 of 213

Symbol

Description

WEEE identification

ESD sensitive components

Do not step on the marked components. This can damage the

components.

Escaping of heated air

Original Operating Instructions

APS Series – Outdoor Hybrid Inverter

User Information

APS-Series 120 Operating Instructions v320 EN

Page 19 of 213

1.4.3 Terms and Abbreviations

Table 1: Naming convention

Complete designation

Designation in the document

Apparent Power Master Controller, PLC of APS

APMC

Apparent power system

APS

Apparent power unit

APU

Constant current – constant voltage

CC-CV

Digital input

DI

Digital output

DO

Electromagnetic compatibility

EMC

Electrostatic discharge

ESD

Energy storage

ES

Ethernet for Controller and Automation

Technology

EtherCAT

File transfer protocol

FTP

Hardware version

HW

Hybrid

H

Insulated gate bipolar transistor

IGBT

Insulation monitoring device

IMD

International protection

IP

Low voltage-

LV-

Maximum power point tracking

MPPT

Medium-voltage skid

MV skid

Medium-voltage switchgear

MV switchgear

Medium-voltage transformer

MV transformer

Photovoltaic

PV

Programmable logic controller

PLC

STATIC VAR COMPENSATION

STATCOM

Transmission control protocol

TCP

Uninterrupted power supply

UPS

Virtual network computing

VNC

Volt-ampere reactive

VAR

Waste of Electrical and Electronic Equipment

WEEE

Wiring diagram version

WD

Original Operating Instructions

APS Series – Outdoor Hybrid Inverter

User Information

APS-Series 120 Operating Instructions v320 EN

Page 20 of 213

1.5 Intended Use

The APS is a hybrid inverter that converts the direct current from a DC source into

alternating current and feeds it into the grid and vice versa. The product may be used

solely in photovoltaic systems, energy storage systems and as STATIC VAR

COMPENSTATION (STATCOM).

Connection to the medium-voltage grid is provided with the aid of a distribution

transformer.

The product is constructed for outdoor use. It fulfils the IP65 degree of protection.

The product is not suitable for operation in areas with the risk of explosion and must be

kept away from flammable or combustible materials.

It is prohibited to open the product when it is raining or the humidity is greater than

95%.

For all work appropriate tools must be used.

Only operate the product with the maximum permissible connected loads stated in the

Section Technical Data.

The operating conditions given in the Section Technical Data must be fulfilled at all

times.

Always ensure that existing wiring is in good condition and that wire is not undersized.

Never operate the product with damaged or substandard wiring.

The manufacturer must not be liable for any damages resulting from unauthorized

persons conducting work on the product.

Never operate the product with open doors.

Never operate the product with any technical defects.

Never operate the product if it has been damaged in any way.

Never open the doors within the discharge time.

To reduce risk of fire hazard, do not cover or obstruct any ventilation openings.

Fill the cooling system with the prescribed amount of cooling fluid. An empty cooling

system can lead to the corrosion of the APS tubes and ball valves.

Improper use of the product may pose a substantial danger to all persons involved.

The type plate, product safety signs and labels must remain permanently attached to

the product.

Only the spare parts that are listed in this document may be used. The use of other

spare parts must be construed as an alteration.

Without approval of the grid operator do not switch off or adjust settings which have

influence on the grid management service.

All changes and/or modifications to the equipment, its structure or its software are

prohibited and will result in loss of warranty.

Intended use includes reading the original operating instructions and complying with all

instructions contained herein, in particularly the safety instructions. These original

operating instructions must be kept near or in the product for the lifetime of the product.

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WSTECH APS Series Original Operating Instructions

WSTECH APS Series Original Operating Instructions

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