Siemens SINAMICS PERFECT HARMONY GH180 User manual

Air Cooled: 6SR5
Medium Voltage Variable
Frequency Drive 7KLVGRFXPHQWDWLRQSHUWDLQVWR$(
Operating Instructions
AB
SINAMICS PERFECT HARMONY GH180
07/2018 www.siemens.com/drives

Medium Voltage Variable Frequency
Drive
SINAMICS PERFECT HARMONY
GH180
Air Cooled 6SR5
Operating Instructions
07/2018
A5E42736645A_AB
Introduction 1
Security information 2
Safety notes 3
Description 4
Preparing for Use 5
Assembly 6
Electrical Connections 7
Commissioning 8
Operation 9
Maintenance 10
Spare Parts 11
Disposal and Recycling 12
Service and Support A
Technical Data B
Quality C
List of abbreviations D

Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will be
used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property
damage.
Qualified Personnel
The product/system described in this documentation may be operated only by personnel qualified for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions. Qualified
personnel are those who, based on their training and experience, are capable of identifying risks and avoiding
potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended or
approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software described.
Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in
this publication is reviewed regularly and any necessary corrections are included in subsequent editions.
Siemens AG
Division Process Industries and Drives
Postfach 48 48
90026 NÜRNBERG
GERMANY
A5E42736645A_AB
Ⓟ 07/2018 Subject to change
Copyright © Siemens AG 2018 - 2019.
All rights reserved

Table of contents
1 Introduction...................................................................................................................................................7
1.1 Introduction..............................................................................................................................7
2Security information......................................................................................................................................9
3Safety notes................................................................................................................................................11
3.1 General Safety Information....................................................................................................11
3.2 Observing the Five Safety Rules............................................................................................12
3.3 Safety Information and Warnings...........................................................................................13
3.4 ESD-sensitive Components...................................................................................................15
4 Description..................................................................................................................................................17
4.1 Cabinet Details.......................................................................................................................17
4.1.1 Supply Scope ........................................................................................................................17
4.1.2 Input / Output Section............................................................................................................17
4.1.3 Transformer Section...............................................................................................................17
4.1.4 Cell Section............................................................................................................................18
4.1.5 Control Section.......................................................................................................................19
4.1.5.1 Control Section.......................................................................................................................19
4.1.5.2 Control Door Cabinet Components........................................................................................21
4.1.6 Cooling Section......................................................................................................................24
4.1.6.1 Application of Voltage............................................................................................................24
4.1.6.2 Blowers and Speed Settings..................................................................................................24
5 Preparing for Use.......................................................................................................................................27
5.1 Transportation Preparation ..................................................................................................27
5.2 Packing and Transportation Requirements............................................................................29
5.3 Proper Drives Receiving, Off-loading, Handling, Unpacking, and Placement Techniques......34
5.4 Receiving...............................................................................................................................35
5.5 Off-Loading............................................................................................................................36
5.6 Handling................................................................................................................................38
5.7 Transportation with Crane......................................................................................................39
5.8 Transportation with Fork-Lift..................................................................................................43
5.9 Transportation with Pipe Rollers ...........................................................................................45
5.10 Transportation with Roller Dollies..........................................................................................46
5.11 Unpacking..............................................................................................................................48
5.12 Final Placement.....................................................................................................................49
5.13 Storage...................................................................................................................................51
Air Cooled 6SR5
Operating Instructions, 07/2018, A5E42736645A_AB 3

6 Assembly....................................................................................................................................................53
6.1 General Mounting ..................................................................................................................53
6.2 Proper Cabinet Anchoring Methods.......................................................................................54
7 Electrical Connections................................................................................................................................55
7.1 General Electrical ..................................................................................................................55
7.2 Installation External Wiring ....................................................................................................56
7.3 Grounding, Cabling, and Shielding Recommendations.........................................................59
7.4 Cable Gland Plates Removal and Installation Guidelines......................................................62
7.5 Terminal Blocks......................................................................................................................63
7.6 E-Stops..................................................................................................................................64
7.7 Associated Protection provided by the Customer..................................................................65
8 Commissioning...........................................................................................................................................67
8.1 Residual Current Device (RCD) Compatibility.......................................................................67
8.2 Cell Reforming.......................................................................................................................68
8.3 Pre-Commissioning Process..................................................................................................69
9 Operation....................................................................................................................................................71
9.1 Operating the Drive................................................................................................................71
9.2 Resetting the Protection Scheme...........................................................................................72
10 Maintenance...............................................................................................................................................73
10.1 Introduction............................................................................................................................73
10.2 VFD Power Down and Door Access......................................................................................74
10.2.1 Mechanical Interlock System.................................................................................................74
10.2.2 Unlocking the Doors...............................................................................................................74
10.2.3 Electromagnetic Door Interlock System.................................................................................77
10.3 Preventive Maintenance.........................................................................................................78
10.3.1 Introduction............................................................................................................................78
10.3.2 Inspection...............................................................................................................................78
10.3.3 Preventive Maintenance Checklist.........................................................................................79
10.4 Touch-Up Paint......................................................................................................................80
10.5 Cleaning.................................................................................................................................81
10.5.1 Contact for Cleaning Measures..............................................................................................81
10.5.2 Removing Dust Deposits........................................................................................................81
10.6 Remove and Replace.............................................................................................................82
10.6.1 Maintenance and Earthing Procedure....................................................................................82
10.6.2 Part Replacement .................................................................................................................84
10.6.3 Replacing the Filter Media.....................................................................................................84
10.6.4 Replacing the Door-Mounted Keypad....................................................................................88
10.6.5 Removing the Power Cell Procedure.....................................................................................88
10.6.6 Replacing the Compact Flash Card.......................................................................................91
10.6.7 Installing Perfect Harmony Power Cells.................................................................................92
Table of contents
Air Cooled 6SR5
4Operating Instructions, 07/2018, A5E42736645A_AB

10.6.8 Fuse Location ........................................................................................................................98
10.6.9 Replacing Cell Input Power Fuses.........................................................................................98
10.6.10 Printed Circuit Board Replacement Procedure (NXGpro)....................................................100
11 Spare Parts...............................................................................................................................................103
11.1 Replaceable Spare Parts.....................................................................................................103
12 Disposal and Recycling............................................................................................................................105
12.1 Disposing of Device Components........................................................................................105
A Service and Support.................................................................................................................................107
A.1 Field Service Operation........................................................................................................107
B Technical Data..........................................................................................................................................109
B.1 Storage, Transport and Operation Ambient Conditions.......................................................109
B.2 Power Cell Specifications Table...........................................................................................111
B.3 21/24-Cell Specifications......................................................................................................112
B.4 15-Cell Specifications...........................................................................................................113
C Quality......................................................................................................................................................115
C.1 CE Marking and Directives for SINAMICS PERFECT HARMONY GH180 Products..........115
C.2 CE Marking..........................................................................................................................116
C.3 CE Marking on Power Drive Systems (PDS).......................................................................117
D List of abbreviations..................................................................................................................................119
D.1 Abbreviations.......................................................................................................................119
Glossary...................................................................................................................................................125
Index.........................................................................................................................................................137
Tables
Table 5-1 Required Conditions for Transport per IEC 60721-3-2: 2018......................................................29
Table 5-2 Required Conditions for Ambient Storage per IEC 60721-3-1: 2018..........................................51
Table 7-1 Drive Torque Specifications (Zinc-Plated Hardware and Electrical Connections Only)..............57
Table 7-2 Drive Torque Specifications (Stainless Steel Hardware, Mechanical Connections)...................57
Table 7-3 Control Signal Cabling General Guidelines.................................................................................61
Table B-1 General Ambient Conditions.....................................................................................................109
Table D-1 Commonly Used Abbreviations.................................................................................................119
Figures
Figure 3-1 ESD Protective Measures...........................................................................................................16
Figure 4-1 Input Protection Interface for Trip Contacts.................................................................................20
Figure 4-2 SIMATICS Touchpad..................................................................................................................21
Table of contents
Air Cooled 6SR5
Operating Instructions, 07/2018, A5E42736645A_AB 5

Figure 4-3 Multi-Language Keypad and Display Interface .......................................................................22
Figure 5-1 Center of Balance Label..............................................................................................................27
Figure 5-2 Securing of Uncrated Drive (blower cage removed)...................................................................32
Figure 5-3 Top to Bottom: Transportation with Crane using H-Shaped Spreader Bar; Transportation
with Crane using Single Spreader Bar .......................................................................................40
Figure 5-4 Lifting Views with Typical Block Placements...............................................................................42
Figure 5-5 Fork-Lift Handling........................................................................................................................44
Figure 5-6 Proper Placement of Pipe Rollers...............................................................................................45
Figure 5-7 Proper Placement of Roller Dollies.............................................................................................46
Figure 6-1 Proper Anchoring in Concrete Technique...................................................................................54
Figure 7-1 Grounding of cable shields when multiple sections (or splices) are used...................................60
Figure 10-1 DC Bus Voltage Indicator............................................................................................................75
Figure 10-2 Front View of VFD Cabinet .........................................................................................................76
Figure 10-3 Attaching the grounding spider....................................................................................................83
Figure 10-4 Installed Filter..............................................................................................................................85
Figure 10-5 Screwdriver Insertion Points........................................................................................................85
Figure 10-6 Filter Cover Removal...................................................................................................................86
Figure 10-7 Filter with Cover Removed..........................................................................................................86
Figure 10-8 Filter Removal.............................................................................................................................87
Figure 10-9 Fiber Optic Removal....................................................................................................................89
Figure 10-10 NXGpro Digital Control Rack - Compact Flash ..........................................................................91
Figure 10-11 40 A - 140 A - proper alignment of power cell mounting with receiving holes.............................93
Figure 10-12 200 A - 260 A - proper alignment of power cell mounting with receiving holes...........................93
Figure 10-13 Fiber Optic Location....................................................................................................................95
Figure 10-14 40 - 70 A Fiber Optic and DC Bus Indicator................................................................................96
Figure 10-15 Torque Connections for 40 - 70 A Power Cells...........................................................................96
Figure 10-16 100 - 140 A Fiber Optic and DC Bus Indicator............................................................................96
Figure 10-17 Torque Connections for 100 - 140 A Power Cells.......................................................................97
Figure 10-18 200 - 260 A Fiber Optic and DC Bus Indicator............................................................................97
Figure 10-19 Torque Connections for 200 - 260 A Power Cells.......................................................................97
Figure 10-20 Fuse Location..............................................................................................................................98
Figure C-1 CE Marking................................................................................................................................116
Figure C-2 Power Drive System..................................................................................................................117
Figure C-3 Drive System Schematic (Reference: IEC Std 61800-5-1-2007) Drive System Schematic......118
Table of contents
Air Cooled 6SR5
6Operating Instructions, 07/2018, A5E42736645A_AB

Introduction 1
1.1 Introduction
About This Manual
This manual provides customer documentation for the SINAMICS PERFECT HARMONY
GH180 variable frequency drive (VFD).
The content of this manual provides standard information as well as descriptions of all available
options for this product line. The contents also provides safety warning and notes, preparation
for use, assembly/installation, electrical, commissioning, operation, maintenance, spare parts,
and disposal information. The latter pages of this manual contain appendices for specific
technical documents, support services information, technical drawings, and other relevant data.
This manual is intended for use by trained personnel having unique job functions and
qualifications since there are areas on the VFD that are hazardous and therefore may cause
death or serious bodily harm to personnel and also cause serious damage to the Drive.
The manual is also intended for use by planners, project engineers, installation personnel,
programmers, commissioning personnel, operators, service and maintenance personnel.
This documentation contains the most important safety-related information for the SINAMICS
PERFECT HARMONY GH180 VFD. It is important supplementary information, but is not a
replacement for the operating instructions nor the other product documentation on your CD.
WARNING
Familiarity with the Product Documentation
Only the complete product documentation will allow you to assemble and install the
equipment, to put it into operation and to maintain it correctly and safely.
Incorrect work on the equipment can result in death, severe injury or material damage.
Always refer to the operating instructions when working on the equipment. You will find the
operating instructions and other equipment information about your product that you will need
on the CD supplied with the Drive.
Variable Frequency Drive Introduction
A variable frequency drive (VFD) system controls the rotational speed and torque of an
alternating current (AC) electric motor by adjusting the frequency and voltage of the electrical
power supplied to the motor. In an AC motor, frequency determines the motor speed.
Air Cooled 6SR5
Operating Instructions, 07/2018, A5E42736645A_AB 7

Introduction
1.1 Introduction
Air Cooled 6SR5
8Operating Instructions, 07/2018, A5E42736645A_AB

Security information 2
Siemens provides products and solutions with industrial security functions that support the
secure operation of plants, systems, machines, and networks.
In order to protect plants, systems, machines and networks against cyber threats, it is
necessary to implement – and continuously maintain – a holistic, state-of-the-art industrial
security concept. Siemens’ products and solutions only form one element of such a concept.
Customer is responsible to prevent unauthorized access to its plants, systems, machines and
networks. Systems, machines and components should only be connected to the enterprise
network or the internet if and to the extent necessary and with appropriate security measures
(e.g. use of firewalls and network segmentation) in place.
Additionally, Siemens’ guidance on appropriate security measures should be taken into
account. You can find more information about industrial security by visiting:
https://www.siemens.com/industrialsecurity.
Siemens’ products and solutions undergo continuous development to make them more secure.
Siemens strongly recommends you apply product updates as soon as available and always
use the latest product versions. Use of product versions that are no longer supported, and
failure to apply latest updates may increase customer’s exposure to cyber threats.
To stay informed about product updates, subscribe to the Siemens Industrial Security RSS
Feed under
https://www.siemens.com/industrialsecurity.
Air Cooled 6SR5
Operating Instructions, 07/2018, A5E42736645A_AB 9

Security information
Air Cooled 6SR5
10 Operating Instructions, 07/2018, A5E42736645A_AB

Safety notes 3
3.1 General Safety Information
Proper Use
SINAMICS PERFECT HARMONY GH180 medium voltage drives must always be installed in
closed electrical operating areas. The drive is connected to the industrial network via a circuit-
breaker that is electrically connected to the VFD control to enable the drive protection features.
The specific transport conditions must be observed when the equipment is transported. The
equipment shall be assembled/installed and the separate cabinet units connected properly by
cable and/or busbar in accordance with the assembly/installation instructions. The relevant
instructions regarding correct storage, EMC-compliant installation, cabling, shielding and
grounding and an adequate auxiliary power supply must be strictly observed. Fault-free
operation is also dependent on careful operation and maintenance.
The power sections are designed for variable-speed drives use with synchronous and
asynchronous motors. Operating modes, overload conditions, load cycles, and ambient
conditions different to those described in this document are allowed only by special
arrangement with the manufacturer.
Commissioning should only be carried out by trained service personnel in accordance with the
commissioning instructions.
System components such as circuit-breaker, transformer, cables, cooling unit, motor, speed
sensors, etc., must be matched to VFD operation. System configuration may only be carried
out by an experienced system integrator.
Air Cooled 6SR5
Operating Instructions, 07/2018, A5E42736645A_AB 11

3.2 Observing the Five Safety Rules
There are five safety rules that must always be observed to assure not only personal safety,
but to prevent material damage as well. Always obey safety-related labels located on the
product itself and always read and understand each safety precaution prior to operating or
working on the drive.
The five safety rules:
1. Disconnect the power applied to the system.
2. Protect against reapplication of power.
3. Make sure that the equipment is de-energized.
4. Apply grounding (earthing) means.
5. Cover or enclose adjacent components to secure all forms of hazardous energy.
DANGER
Danger Due to High Voltages
High voltages cause death or serious injury if the safety instructions are not observed or if
the equipment is handled incorrectly.
Potentially fatal voltages occur when this equipment is in operation which can remain present
even after the VFD is switched off.
Ensure that only qualified and trained personnel carry out work on the equipment.
Follow the five safety rules during each stage of the work.
Safety notes
3.2 Observing the Five Safety Rules
Air Cooled 6SR5
12 Operating Instructions, 07/2018, A5E42736645A_AB

3.3 Safety Information and Warnings
DANGER
Hazardous Voltage!
●Always follow the proper lock-out/tag-out procedures before beginning any maintenance
or troubleshooting work on the VFD.
●Always follow standard safety precautions and local codes during installation of external
wiring. The installation must follow wiring practices and insulation systems as specified in
IEC 61800-5-1.
●Hazardous voltages may still exist within the VFD cabinets even when the disconnect
switch is open (off) and the supply power is shut off.
●Only qualified individuals should install, operate, troubleshoot, and maintain this VFD. A
qualified individual is "a person, who is familiar with the construction and operation of the
equipment and the hazards involved."
●Always work with one hand, wear electrical safety gloves, wear insulated electrical hazard
rated safety shoes, and safety goggles. Also, always work with another person present.
●Always use extreme caution when handling or measuring components that are inside the
enclosure. Be careful to prevent meter leads from shorting together or from touching other
terminals.
●Use only instrumentation (e.g., meters, oscilloscopes, etc.) intended for high voltage
measurements (that is, isolation is provided inside the instrument, not provided by isolating
the chassis ground of the instrument).
●Never assume that switching off the input disconnector will remove all voltage from internal
components. Voltage is still present on the terminals of the input disconnector. Also, there
may be voltages present that are applied from other external sources.
●Never touch anything within the VFD cabinets until verifying that it is neither thermally hot
nor electrically alive.
●Never remove safety shields (marked with a HIGH VOLTAGE sign) or attempt to measure
points beneath the shields.
●Never operate the VFD with cabinet doors open. The only exception is the control cabinet.
●Never connect any grounded (i.e., non-isolated) meters or oscilloscopes to the system.
●Never connect or disconnect any meters, wiring, or printed circuit boards while the VFD
is energized.
●Never defeat the instrument’s grounding.
● When a system is configured with VFD bypass switchgear (e.g. contactors between line
and motor, and VFD and motor), these switches should be interlocked so that the line
voltage is never applied to the VFD output if the medium input voltage is removed from
the VFD.
Safety notes
3.3 Safety Information and Warnings
Air Cooled 6SR5
Operating Instructions, 07/2018, A5E42736645A_AB 13

WARNING
Potential Arc Hazard
● Arcing can result in damage to property, serious injury and even death.
● The equipment has not been tested and rated for arc flash protection.
● Avoiding arc hazard risks is dependent upon proper installation and maintenance.
● Incorrectly applied equipment, incorrectly selected, connected or unconnected cables, or
the presence of foreign materials can cause arcing in the equipment.
● Follow all applicable precautionary rules and guidelines as used in working with medium
voltage equipment.
● The equipment may be used only:
– for the applications defined as suitable in the technical description.
– in combination with equipment and components supplied by other manufacturers which
have been approved and recommended by Siemens.
● Always follow the facility/installation site rules/guidelines for Personal Protectiive
Equipment (PPE) based on the Arc Flash study of that facility.
Additional safety precautions and warnings appear throughout this manual. These important
messages should be followed to reduce the risk of personal injury or equipment damage.
WARNING
Obey Rules to Avoid Risk of Death
●Always comply with local codes and requirements if disposal of failed components is
necessary.
●Always ensure the use of an even and flat truck bed to transport the VFD system. Before
unloading, be sure that the concrete pad is level for storage and permanent positioning.
●Always confirm proper tonnage ratings of cranes, cables, and hooks when lifting the VFD
system. Dropping the cabinet or lowering it too quickly could damage the unit.
●Never disconnect control power while medium voltage is energized. This could cause
severe system overheating and/or damage.
●Never store flammable material in, on, or near the drive enclosure. This includes
equipment drawings and manuals.
●Never use fork trucks to lift cabinets that are not equipped with lifting tubes. Be sure that
the fork truck tines fit the lifting tubes properly and are the appropriate length.
Safety notes
3.3 Safety Information and Warnings
Air Cooled 6SR5
14 Operating Instructions, 07/2018, A5E42736645A_AB

3.4 ESD-sensitive Components
Guidelines for Handling Electrostatic Sensitive Devices (ESD)
NOTICE
ESD Sensitive Equipment
● Always be aware of electrostatic discharge (ESD) when working near or touching
components inside the VFD cabinet. The printed circuit boards contain components that
are sensitive to electrostatic discharge. Handling and servicing of components that are
sensitive to ESD should be done only by qualified personnel and only after reading and
understanding proper ESD techniques. The following ESD guidelines should be observed.
Following these rules can greatly reduce the possibility of ESD damage to printed circuit
board (PCB) components.
● Always transport static sensitive equipment in antistatic bags.
● Always use a soldering iron that has a grounded tip. Also, use either a metallic vacuum-
style plunger or copper braid when desoldering.
● Ensure that anyone handling the printed circuit boards is wearing a properly grounded
static strap. The wrist strap should be connected to ground through a 1 Megohm resistor.
Grounding kits are available commercially through most electronic wholesalers.
● Static charge build-up can be removed from a conductive object by touching the object
with a properly grounded piece of metal.
● When handling a PC board, always hold the card by its edges.
● Do not slide printed circuit boards (PCBs) across any surface (e.g., a table or work bench).
If possible, perform PCB maintenance at a workstation that has a conductive covering that
is grounded through a 1 Megohm resistor. If a conductive tabletop cover is unavailable, a
clean steel or aluminum tabletop is an excellent substitute.
● Avoid plastic Styrofoam™, vinyl and other non-conductive materials. They are excellent
static generators and do not give up their charge easily.
● When returning components to Siemens Industry, Inc. always use static-safe packing.
This limits any further component damage due to ESD.
Components that can be destroyed by electrostatic discharge (ESD)
NOTICE
Electrostatic discharge
Electronic components can be destroyed in the event of improper handling, transporting,
storage, and shipping.
Pack the electronic components in appropriate ESD packaging; e.g. ESD foam, ESD
packaging bags and ESD transport containers.
To protect your equipment against damage, follow the instructions given below.
Safety notes
3.4 ESD-sensitive Components
Air Cooled 6SR5
Operating Instructions, 07/2018, A5E42736645A_AB 15

● Avoid physical contact with electronic components. If you need to perform absolutely
essential work on these components, then you must wear one of the following protective
gear:
– Grounded ESD wrist strap
–ESD shoes or ESD shoe grounding strips if there is also an ESD floor.
● Do not place electronic components close to data terminals, monitors or televisions.
Maintain a minimum clearance to the screen (> 10 cm).
● Electronic components should not be brought into contact with electrically insulating
materials such as plastic foil, plastic parts, insulating table supports or clothing made of
synthetic fibers.
● Place components in contact with ESD-suited materials e.g. ESD tables, ESD surfaces,
ESD packaging.
● Measure on the components only if one of the following conditions is met:
– The measuring device is grounded with a protective conductor.
– The measuring head of a floating measuring device has been discharged directly before
the measurement.
The necessary ESD protective measures for the entire working range for electrostatically
sensitive devices are illustrated once again in the following drawings. Precise instructions for
ESD protective measures are specified in the standard DIN EN 61340-5-1.
EEDFDIIIIIDFFHGGHG
1 Sitting
2 Standing
3 Standing/sitting
a Conductive floor surface, only effective in conjunction with ESD shoes or ESD shoe grounding
strips
b ESD furniture
c ESD shoes or ESD shoe grounding strips are only effective in conjunction with conductive floor‐
ing
d ESD clothing
e ESD wristband
f Cabinet ground connection
Figure 3-1 ESD Protective Measures
Safety notes
3.4 ESD-sensitive Components
Air Cooled 6SR5
16 Operating Instructions, 07/2018, A5E42736645A_AB

Description 4
4.1 Cabinet Details
4.1.1 Supply Scope
Standard Scope of Supply
The scope of supply for the air-cooled SINAMICS PERFECT HARMONY GH180 VFD system
basic unit consists of multiple sections:
● Input/Output section
● Transformer section
● Cell section
● Control section
● Blowers
The standard core VFD enclosure is ventilated, and is provided with top and bottom cable
access plates, hinged doors with either mechanical or electrical key interlocks, and
IP42 degree of protection.
4.1.2 Input/Output Section
Input/Output Section
● The Input/Output section primarily houses the line (L1-L3) side and load (T1-T3) side
connections.
● The bus connections are accessible by way of both top and bottom gland plates.
● The I/O section also contains a protective earth (PE).
4.1.3 Transformer Section
Transformer Section
The transformer section primarily houses the transformer and polyglass air baffling.
The air-cooled product uses an isolating multi-winding secondary phase shifting transformer.
The transformer core is grounded to the enclosure.
Air Cooled 6SR5
Operating Instructions, 07/2018, A5E42736645A_AB 17

Depending upon order specifications, the transformer is configured for 30 or 42-48 pulse power
quality by using extended delta 750 V secondary windings.
The transformer is a dry type forced air-cooled unit, and polyglass air baffles are used to direct
air movement across the coils. All SINAMICS PERFECT HARMONY GH180 transformers are
thermally monitored.
All connections to and from the transformer are made with insulated wire. The transformer is
equipped with off-line taps to accommodate utility line variations, +5%, 0%, and -5% are
supplied on typical units.
Dependent upon order specifications, the winding conductor material may be aluminum or
copper.
The transformers are appropriately sized for the application. However, other factors such as
motor lead length, motor service factor, environment conditions, ambient conditions, altitude,
and power cell redundancy must be considered.
4.1.4 Cell Section
The basic electrical diagrams for all SINAMICS PERFECT HARMONY GH180 systems are
similar. One of the most critical components of the drives is the power cell. The cell voltage
is 750 V. Depending on the operating load voltage, 15, 21, or 24 cells are used to develop the
multi-level PWM output waveform varies.
Each power cell input side is configured as a 6-pulse diode rectifier. Terminals are supplied
with power via a secondary winding of the transformer. The DC output of the rectifier is filtered
via the capacitor bank and supplies power to a single-phase inverter on the output side. Output
terminals of each cell are connected in series in each phase group.
Note
Discharging the DC Link
The power cells include discharge resistors to dissipate stored energy after the input voltage
is removed. The power cell DC bus voltage decays to less than 50 VDC in less than 10 minutes.
Fuses
The secondary of the transformer is routinely fused. The fuses are mounted externally on the
front panel of the power cells (located in the cell section). Only two phases of each transformer
secondary (power cell input) are fused. Fuses are forced air-cooled for longer life and less
thermal stress.
Note
Permitted Mixture of Fuse Vendors
A mixture of fuse vendors is permitted, but not within the same power cell (i.e., FA1A and FA1C
should be from the same vendor).
Description
4.1 Cabinet Details
Air Cooled 6SR5
18 Operating Instructions, 07/2018, A5E42736645A_AB