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PowerWAVE 3000TP
User Manual
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Uninterruptible Power Supplies PowerWAVE 3000, PowerWAVE 3000TP User Manual

22
PowerWAVE 3000/TP
(10 & 20 kVA)
User Manual
:
TS_604_01 PowerWave PW3000/TP User Manual UK 5/1/18 III
:
Document Control
ISSUE DATE REVISION SUMMARY
TS_604_00 28/06/17 Applied changes from TS_604_00B mark-up and issued as new release document
TS_604_01 05/01/18 Updated specification - heat dissipation
:
Uninterruptible Power Supplies Ltd has taken every precaution to produce an accurate, complete and easy to understand manual and will therefore assume no responsibility nor liability for direct, indirect or accidental personal or material damage due to any misinterpretation of or accidental mistakes in this manual.
© 2017 Uninterruptible Power Supplies Ltd
This manual may not be copied nor reproduced without written permission of Uninterruptible Power Supplies Ltd.
USEFUL CONTACTS
www.upspower.co.uk UPS Limited web site
service@upspower.co.uk Service department – booking service, fault reporting etc.
technical@upspower.co.uk Technical queries
sales@upspower.co.uk Hardware sales
servicesales@upspower.co.uk Extended warranty agreements etc
TS_604_01 PowerWave PW3000/TP User Manual UK 5/1/18 I
Table of Contents
Safety 1
1.1 Description of symbols used in this manual 1
1.2 User precautions 1
1.3 Declaration of Safety conformity and CE marking 2
General Description 3
2.1 Introduction 3
2.2 PowerWave PW3000/TP Model range 4
2.3 Functional description of operation 4
2.3.1 PowerWave PW3000/TP Module block diagram 4
2.3.2 UPS Module operating modes 6
2.3.3 UPS System operating modes 8
2.3.4 Optional operating mode settings 9
2.3.5 Multi-module parallel system operation 9
2.4 PowerWave PW3000/TP User controls 10
2.5 UPS Control panel 12
2.5.1 Status LED indicators 12
2.5.2 LCD Display 12
2.5.3 UPS Control panel operator keys 14
2.5.4 LCD Menu navigation 14
2.5.5 Main Menu 14
2.5.6 Status sub-menu 15
2.5.7 Event Log sub-menu 15
2.5.8 Measurements sub-menu 15
2.5.9 Control sub-menu 16
2.5.10 Identification sub-menu 18
2.5.11 Settings sub-menu 18
2.6 Warranty 22
2.7 Extended Warranty 22
2.8 Additional Service/Maintenance Support 22
Installation 23
3.1 Introduction 23
3.2 Taking receipt of the UPS 23
3.2.1 Site transportation 24
3.3 Unpacking 24
3.4 Storage 25
3.5 Planning the installation (site considerations) 25
3.5.1 Clearances 26
3.6 Planning the installation (cabling considerations) 26
3.6.1 General requirements 26
3.6.2 UPS Cable and fuse sizing 27
3.6.3 Power cabling for a parallel system 27
3.6.4 UPS Terminal block connection details 28
3.6.5 Input/bypass supply configuration options 28
3.7 Connecting the UPS power cables 29
3.7.1 Power cabling procedure 29
3.7.2 Three phase dual input cabling details 30
3.7.3 Three phase single input cabling details 31
3.7.4 Single phase dual input cabling details 32
3.7.5 Single phase single input cabling details 33
3.8 Battery cabling procedure 34
3.8.1 Internal battery connections 34
3.8.2 External battery cabinet cabling procedure 35
3.9 Multi-cabinet configuration and paralleling cables 35
3.10 Optional remote monitoring and control facilities 35
Operating procedures 36
4.1 Introduction 36
4.1.1 Operating procedure summary 36
4.2 Single module start-up – with mains supply 37
4.3 Single module start-up – without mains supply 37
4.4 Single module – changing the operating mode 38
4.5 Single module shut down – with mains supply present 38
4.6 Single module shutdown – with UPS on battery 38
4.7 Single module – using the internal maintenance bypass 39
4.8 Parallel module system procedures 40
4.9 Parallel system start-up 41
4.10 Parallel system – changing the operating mode 41
4.11 Parallel system – start/stop one module 42
4.12 Parallel module complete system shut-down 43
4.13 External Maintenance Bypass operation 44
4.14 Operating a frequency changing system 45
4.14.1 Frequency changer – starting the UPS 45
4.14.2 Frequency changer – stopping the UPS 45
4.15 Emergency Stop 46
Maintenance 47
5.1 Introduction 47
5.2 System calibration 47
5.3 User responsibilities 47
5.4 Routine maintenance 47
5.5 Battery testing 48
5.6 Battery maintenance 48
5.7 Battery disposal and recycling 48
Troubleshooting 49
6.1 Contacting Service 49
6.2 Fault identification and rectification 50
6.2.1 Troubleshooting without an error message 50
6.2.2 Troubleshooting based on error message 50
Options 52
7.1 Back-feed protection 52
7.2 Emergency Power-OFF (EPO) 53
7.3 Computer communication options. 53
7.3.1 USB Port 53
7.3.2 RS232 Port.RS232 and USB Communication options 54
7.4 Serial Network Management (SNMP) card 54
TS_604_01 PowerWave PW3000/TP User Manual UK 5/1/18 III
:
7.5 AS400 Interface card 55
7.6 UPS Monitoring and automated control software 56
7.6.1 The importance of UPS management 56
Specifications 57
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TS_604_01 PowerWave PW3000/TP User Manual UK 5/1/18 1
1
Safety
1.1 Description of symbols used in this manual
1.2 User precautions
WARNING: The warning symbol is used where there is danger of an electrical shock, equipment damage or
personal-injury.
CAUTION: The caution symbol is used to highlight important information to avoid possible equipment malfunction or damage.
WARNING: Keep this manual with the UPS for future reference.
WARNING: The UPS and peripheral equipment must be installed and commissioned by suitably qualified and
trained personnel who are aware of the potential shock hazards.
WARNING: Do not attempt to install this UPS system until you are satisfied that ALL the safety instructions and hazard warnings contained in this manual are read and fully understood.
WARNING: High leakage current! Ensure that the UPS has been correctly earthed before you connect the mains power supply!
WARNING: This UPS must not be started-up or put into use without having first been commissioned by a fully trained engineer authorised by the manufacturer.
WARNING: This UPS must be serviced by qualified personnel. You run risk of exposure to dangerous voltages by opening or removing the UPS-covers! Uninterruptible Power Supplies Ltd will assume no responsibility nor liability due to incorrect operation or manipulation of the UPS.
WARNING: The PowerWave PW3000/TP is a Class A UPS product (according to EN 62040-3). In a domestic environment the UPS may cause radio interference. In such an environment the user may be required to undertake additional measures.
1: Safety
1.3 Declaration of Safety conformity and CE marking
The PowerWave PW3000/TP UPS system is designed and manufactured in accordance with Quality Management Systems standard EN ISO 9001. The CE marking indicates conformity to the EEC Directive by the application of the following standards in accordance with the specifications of the harmonized standards:
• 2006/95/EC Low voltage directive
• 2004/108/EC Electromagnetic Compatibility directive (EMC)
Standards as reference:
• EN-IEC 62040-1 – Uninterruptible power supply (UPS). Part 1-1: General and safety requirements for UPSs used in accessible areas by end users.
• EN-IEC 60950-1 – IT equipment. Safety. Part 1: General requirements
• EN-IEC 62040-2 – Uninterruptible power supply (UPS). Part 2: EMC requirements
• EN-IEC 62040-3 – Uninterruptible power systems (UPS). Part 3: Performance and test requirements
• 2011/65/EU – Restriction of the use of certain hazardous substances (RoHS) DIRECTIVE
The supplier's responsibility is excluded in the event of any modification or intervention in the product carried out be the customer.
Table 1.1 Standards
Product Standards Standards
Safety EC/EN 62040-1 EC/EN 60950-1
Electromagnetic Compatibility (EMC) IEC/EN 62040-2 (C1) IEC/EN 61000-4-2
IEC/EN 61000-4-3 IEC/EN 61000-4-4
IEC/EN 61000-4-5
IEC/EN 61000-4-6 IEC/EN 61000-4-8 IEC/EN 61000-2-2
RoHS EN50581:2012 EN50581:2012
TS_604_01 PowerWave PW3000/TP User Manual UK 5/1/18 3
2
General Description
2.1 Introduction
Congratulations on your purchase of the PowerWave PW3000/TP UPS.
Continuous power availability is essential in today’s dynamic IT and process-related work environments. It is equally important that any installed power protection system is sufficiently resilient and adaptable to handle any changes brought about by the introduction of new server technologies, migration and centralization.
Such demands are well met by the PowerWave PW3000/TP UPS system which provides the foundation for continuous power availability of network-critical infrastructures both in enterprise data centres, where business continuity has paramount importance, and in process control environments where manufacturing continuity is essential.
Reliability and quality standards
By using a unique modular construction and incorporating the latest technological developments in power engineering, the PowerWave PW3000/TP represents a completely new generation of transformerless 3 phase UPS-System. Its advanced double conversion VFI (Voltage and Frequency Independent) topology responds fully to both the highest availability and environmentally friendly requirements compliant with IEC 62040-3 (VFI-SS-111) standards. A full UPS Specification is contained in Chapter 8 of this manual.
Uninterruptible Power Supplies Ltd specialises in the installation and maintenance of Uninterruptible Power Systems; and this powerful UPS is just one example of our wide range of state-of-the-art power protection devices that will provide your critical equipment with a steady and reliable power supply for many years.
Key features
In addition to its high reliability, upgrade ability, low operating costs and excellent electrical performance the key features of the PowerWave PW3000/TP include the following:
• Energy savings thanks to 93% AC-AC efficiency, 97% efficiency in ECO mode
• Low harmonic distortion (< 5% THDi) and active power factor correction (0.99 input PF) eliminates interference from other network equipment
• Paralleling and redundancy capability – up to 4 units can be connected in parallel to increases the overall system capacity and availability.
• Integrated automatic and manual bypass simplifies maintenance and reduces need for external switchgear.
• Frequency converter operation to convert 50 to/from 60 Hz
• Compact solution that can achieve 5-16min runtime with internal batteries
• Supports different wiring schemes: three-phase and single-phase input as well as single and dual input feed
• Matching external battery cabinet available for extended autonomy time
2: General Description
2.2 PowerWave PW3000/TP Model range
The PowerWave PW3000/TP range comprises 10kVA and 20kVA UPS models, contained in identically sized cabinets. Depending on the required autonomy time, the UPS batteries can be housed within the UPS cabinet (with various battery arrangements) or housed in a purpose designed and matching battery cabinet which can be installed adjacent to the UPS cabinet to form an aesthetically pleasing suit. Although the UPS produces a single-phase a.c. output, it can be connected to either a single or three phase input supply. It can also be used in a frequency changer role with 50Hz/60Hz input/output or vice versa.
Up to four UPS cabinets can be connected in parallel to increase the overall system output capability or introduce a level of module redundancy to further enhance the system availability
Table 2.2 PowerWave PW3000/TP Cabinet specifications
2.3 Functional description of operation
This section describes:
• The internal operation of an individual UPS power module at block-diagram level
• The various operational modes of an individual UPS power module
• UPS system operational modes – ‘On-line’ versus ‘Off-line’ system operation
• Multi-module system operation and paralleling considerations
2.3.1 PowerWave PW3000/TP Module block diagram
Figure 2.1 PowerWave PW3000/TP UPS block diagram
UPS Mains input supply
The UPS mains input can be connected to a 3ph+N or 1ph+N supply. It is connected to the Rectifier/DC Converter via the ‘Mains 1’ (M1) input breaker and a fuse on the Input RFI Filter. If a single phase input supply is used, the three input line terminals are linked together and the contacts of the input breaker (M1) are effectively paralleled.
Key Point: In a parallel system ALL the connected modules must be of the same output rating – i.e. it is not permissible to combine 10kVA and 20kVA cabinets in a parallel system.
10kVA 20kVA
Maximum power connection kW/kVA 9.0/10 18/10
UPS Cabinet Dimensions (WxHxD) mm 350 x 890 x 712 350 x 890 x 712
UPS Cabinet Weight excluding batteries kg 56 66
UPS Cabinet Weight including batteries (5 mins /16 mins) kg 117 / 177 187 / NA
RECTIFIER /
DC CONVERTER
INPUT
EMI
FILTER
OUTPUT
EMI
FILTER
POWER
INVERTER
STATIC SWITCH
Mains
Input
External
Battery
(Option)
Bypass
Input
UPS AC Output
Static Bypass Line
M1
M2
Maintenance Bypass Line Maintenance Bypass Switch
Automatic Batt. Switch
Output
Relay
CHARGER
Charger Relay
BATTERY
TS_604_01 PowerWave PW3000/TP User Manual UK 5/1/18 5
2: General Description
UPS Bypass input supply
A single phase bypass supply is connected directly to the Maintenance Bypass Switch and also to the bypass side of the static switch, via the ‘Mains 2’ (M2) breaker and a fuse on the Input EMI Filter. In a standard installation the bypass input terminals are usually linked to the mains input supply L1 terminal, so only one mains supply feed is required. This is often referred to as a ‘Single Feed’ input configuration, as opposed to a ‘Dual Feed’ input where a separate bypass supply is used. (See paragraph 3.7 for details concerning ‘Single Feed’ & ‘Dual Feed’ supply configurations.)
Battery charger
The battery charger can be powered from either the Mains Input or Bypass Input supply, and charges the internal (or optional external) batteries when either of these supplies is present. It’s power source is selected by a relay which automatically switches over to the Bypass Input supply when the Mains Input is not available. The charger is rated at 2A but can be increased to 4A if required, depending on battery topology.
Rectifier / DC Converter
The Rectifier / DC Converter produces a controlled DC voltage for the Inverter input. This can be sourced either from the UPS Mains input supply (AC) of from the battery (DC). An automatic changeover switch ensures that the two sources are never connected to the Rectifier /DC Converter simultaneously, with the UPS Mains input always being accepted as the preferred source provided it remains within specified limits.
Power Inverter
A single phase Inverter converts its DC input from the Rectifier / DC Converter into the required UPS output AC supply. The output voltage is tightly regulated using advanced PWM techniques and the output frequency is similarly controlled. Usually, the inverter operates at the same frequency as the UPS input/bypass supply; however, the UPS can be operated in a frequency-changing mode whereby the input and output frequencies are different – e.g. 50Hz/60Hz input/output. Note that when used as a frequency-changer, the UPS bypass circuit is automatically inhibited.
Static switch
The static switch block contains two static switches connected across a load transfer relay, one is connected to the bypass supply and the other to the inverter output. When the load is transferred between the bypass and inverter the appropriate static switch turns on for a brief period to maintain the load supply while the load transfer relay operates. The microprocessor system automatically controls the load transfer between inverter/bypass sources as dictated by local conditions (e.g. overload) and provides a means of performing a manual load transfer.
Output relay
The output relay is used to connect/disconnect the UPS output in a parallel module system, and enables the UPS to be quickly isolated from the system in the event of a UPS fault.
Maintenance bypass switch
The Maintenance Bypass Switch connects the UPS AC Output terminals directly to the Bypass Input and provides a means of temporarily supplying the load from the raw mains while the UPS is otherwise shut-down for maintenance repair. It operates in a make-before-break fashion to ensure the load is supported during the transfer.
In order to protect the UPS inverter, the load must be transferred to the static bypass supply before the Maintenance Bypass Switch is closed – this is performed automatically when the Maintenance Bypass Switch access cover is removed.
When the load is connected via the maintenance bypass the UPS can be shut down safely for repair, with the only remaining live areas within the UPS being the input/output power connections and isolators.
UPS AC Output (load) supply
Figure 2.1 shows that the UPS output (Load Supply) can be provi
ded through one of three power paths depending on the
UPS operating mode – the criteria for operating under each of these UPS modes is described in 2.3.2:
• From the inverter, via the inverter-side static switch and output relay
• From the static bypass line via the bypass-side static switch and output relay
• From the maintenance bypass line via the maintenance bypass switch
2: General Description
2.3.2 UPS Module operating modes
All the diagrams in this section depict a single UPS cabinet. Where two or more cabinets are operating as a parallel system they will always adopt the same operating mode due to their parallel control logic signals.
Load on Inverter
Figure 2.2 Load on inverter
This is the normal operating mode and the only one that provides the load with continuously processed and backed-up power. In this mode, the mains supply is converted to controlled DC by the Rectifier/DC Converter then converted back to the rated AC output voltage by the Inverter and connected to the load via the inverter side of the static switch.
The inverter output frequency is synchronised to the bypass supply provided it remains within preset limits; and if these limits are exceeded, or if the bypass supply fails altogether, the inverter frequency control reverts to a free-running oscillator that will produce a constant 50Hz (or 60Hz) UPS output.
Load on Battery
Figure 2.3 Load on battery
If the mains supply fails, the rectifier will shut down and the battery will provide an alternative DC power source for the inverter via the DC converter. The yellow ‘Battery’ led will illuminate on the control panel to indicate that it is on load and a ‘ON BATTERY’ status indication will be displayed on the LCD, accompanied by an audible alarm.
In the case of a dual feed input – if the bypass supply remains live the inverter frequency will remain synchronised to the
bypass provided it stays within its preset limits.
In the case of a single feed input – the bypass supply will fail at the same time as the mains supply and under these
circumstances the inverter frequency will revert to a free-running oscillator that will produce a constant 50/60Hz output.
RECTIFIER /
DC CONVERTER
INPUT
EMI
FILTER
OUTPUT
EMI
FILTER
POWER
INVERTER
STATIC SWITCH
Mains
Input
External
Battery
(Option)
Bypass
Input
UPS AC Output
Static Bypass Line
M1
M2
Maintenance Bypass Line Maintenance Bypass Switch
Automatic Batt. Switch
Output
Relay
CHARGER
Charger Relay
BATTERY
RECTIFIER /
DC CONVERTER
INPUT
EMI
FILTER
OUTPUT
EMI
FILTER
POWER
INVERTER
STATIC SWITCH
BATTERY
Mains
Input
External
Battery
(Option)
Bypass
Input
UPS AC Output
Static Bypass Line
M1
M2
Maintenance Bypass Line Maintenance Bypass Switch
Automatic Batt. Switch
Output
Relay
CHARGER
Charger Relay
TS_604_01 PowerWave PW3000/TP User Manual UK 5/1/18 7
2: General Description
Some installations include a standby generator which is designed to start-up automatically and provide an alternative UPS power input within a short period following a mains failure. Once the UPS input power is restored from the standby generator, the rectifier and charger will resume normal operation.
Battery discharge operation
As the battery discharges, various options are available to automate the load shut-down process, as described in Chapter 8 of this manual.
A SHUTDOWN IMMINENT alarm indicates when the battery is almost exhausted, with approximately 3 minutes autonomy time remaining, and if a data protection application is installed it will begin its automatic PC shut down routine at this point. When the battery reaches its fully discharged voltage the UPS will attempt to transfer the load to the bypass supply but if the bypass supply is unavailable then the UPS will totally shut down.
Load on Bypass
Figure 2.4 Load on bypass
In the ‘load on bypass’ mode the UPS AC Output is connected to the unprocessed static bypass line via the bypass side of the static switch.
During normal operation the load will be transferred from the inverter to the static bypass line in the event of an inverter fault, output overload, or loss of system redundancy due to a failed module in a parallel module system. Load transfer can also be initiated manually via the UPS control panel.
Depending on the reason for the load being transferred to bypass (i.e. manually transferred or transferred due to a fault), The Rectifier/DC Converter and Inverter power blocks might turn off or remain running.
Load on Maintenance Bypass
Figure 2.5 Load on maintenance bypass
RECTIFIER /
DC CONVERTER
INPUT
EMI
FILTER
OUTPUT
EMI
FILTER
POWER
INVERTER
STATIC SWITCH
Mains
Input
External
Battery
(Option)
Bypass
Input
UPS AC Output
Static Bypass Line
M1
M2
Maintenance Bypass Line Maintenance Bypass Switch
Automatic Batt. Switch
Output
Relay
CHARGER
Charger Relay
BATTERY
RECTIFIER /
DC CONVERTER
INPUT
EMI
FILTER
OUTPUT
EMI
FILTER
POWER
INVERTER
STATIC SWITCH
Mains
Input
External
Battery
(Option)
Bypass
Input
UPS AC Output
Static Bypass Line
M1
M2
MaintenanceBypass Line Maintenance Bypa ssSwitch
Automatic Batt. Switch
Output
Relay
CHARGER
Charger Relay
BATTERY
2: General Description
In this mode of operation the manually closed maintenance bypass switch connects the UPS AC Output directly to the unprocessed bypass supply. This is used to keep the load supplied, albeit without any power protection, whilst allowing the remainder of the UPS system to be shut down for service repair.
To prevent possible inverter damage, it is important that the inverter output and maintenance bypass lines are never connected in parallel. Therefore when transferring from the ‘load on inverter’ mode to the ‘load on maintenance bypass’ mode it is important that the load is first transferred to the static bypass (‘load on bypass’ mode) before the maintenance bypass switch is closed.
2.3.3 UPS System operating modes
The previous section described the internal operating modes of an individual UPS module: but UPS systems are also categorised according to the way in which they are used at a ‘system’ level; and are typically described as being an ‘on­line’, ‘off-line’ or ‘line interactive’ UPS system. The PowerWave PW3000/TP can be operated in all three categories.
On-line operation
When used as an ‘on-line’ UPS system, the PowerWave PW3000/TP UPS normally operate in its ‘load on inverter’ mode and will automatically change over to ‘load on bypass’ in the event of an inverter fault or overload. The bypass-side static switch will transfer the load to the bypass supply without interruption (transfer time = 0).
If the transfer is due to an overload the UPS will attempt to switch back to the ‘load on inverter’ mode if the overload clears while on bypass, and the inverter returns to normal operation. An ‘on-line’ system therefore provides the highest degree of load protection and is always recommended if the critical load will not tolerate even a very brief supply interruption.
If the load fails to successfully re-transfer to inverter three times within ten minutes, further transfer attempts will be locked out – the load will remain on bypass and a warning message will appear on the LCD screen.
Off-line and line interactive operation (HE / ECO mode)
When the PowerWave PW3000/TP is used as an ‘off-line’ or ‘line-interactive’ UPS system it normally operates in the ‘load on bypass’ mode with the load being supplied through the static bypass supply; however the rectifier/DC Converter and battery charger are still powered up to maintain battery charging, and the inverter section is enabled and on standby.
Figure 2.6 ECO (Off-line) mode of operation
If the bypass input supply fails, the static switch will automatically transfer the load to the inverter within 3-5ms; and if the rectifier’s mains input supply is missing when the transfer takes place the inverter will operate immediately from battery power (‘load on battery’ mode). When the bypass supply returns to normal, the load automatically transfers back to the static bypass line (‘load on bypass’ mode) and the inverter returns to its standby operation.
An ‘off line’ system is a slightly more efficient than an ‘on-line’ system due to the reduced rectifier/inverter losses during normal operation, and for this reason it is sometimes referred to as the ‘High Efficiency (HE)’ or ‘Economy ECO’ mode.
WARNING: always follow the operating instructions in this manual when starting or shutting down the UPS.
RECTIFIER /
DC CONVERTER
INPUT
EMI
FILTER
OUTPUT
EMI
FILTER
POWER
INVERTER
STATIC SWITCH
Mains
Input
External
Battery
(Option)
Bypass
Input
UPS AC Output
Static Bypass Line
M1
M2
Maintenance Bypass Line Maintenance Bypass Switch
Automatic Batt. Switch
Output
Relay
CHARGER
Charger Relay
BATTERY
TS_604_01 PowerWave PW3000/TP User Manual UK 5/1/18 9
2: General Description
2.3.4 Optional operating mode settings
The above descriptions refer to the UPS operation in what can be considered to be a ‘standard’ installation. However, the operation can be modified to suit local conditions, or particular load supply requirements, by adjusting the selected values in the LCD SETTINGS sub-menu, as shown in Figure 2.17.
Note: These settings are password-protected and can only be changed by authorised service personnel.
Auto Restart
If the input mains supply fails, and no bypass mains supply is available, the UPS will operate on-battery and shut down when the battery reaches its end of discharge voltage, or immediately if the battery is disconnected. The Auto restart setting determines whether or not the UPS restarts automatically following the return of the input mains.
The default value for Auto restart is [Enabled]. This means that if the UPS shuts down following a mains failure it will restart automatically and return the load to the inverter when the mains supply returns. If Auto restart is [Disabled] the UPS will have to be restarted manually.
Note: If the UPS shuts down due to an overload, an automatic restart can be [
Enabled
] or [
Disabled
] by setting the
separate
Automatic overload restart
parameter.
Auto Bypass
In a ‘standard’ installation the load will be transferred to the bypass supply (if available) if the inverter shuts down due to an overload, inverter fault or a fully discharged battery when operating on battery power. However, in areas where the mains supply is unstable the automatic transfer to bypass function can be inhibited by setting the Auto bypass to [Disabled].
Note: If
Auto bypass
is [
Disabled
] the UPS will shut down (and drop the load) when it is operating on battery power
and the battery reaches its end of discharge voltage.
Short Circuit Clearance
This parameter determines how the UPS reacts to a short circuit on its output.
If a short circuit is detected the inverter will limit its output current to 100% by reducing its output voltage – once the short circuit is cleared the output current will fall below 100% and the output voltage will return to normal.
By default the Short circuit clearance is set to [Disabled], and in this case the inverter will continue to supply 100% load for 100 ms. After this time the UPS is shut down if its output voltage is still <50%
If Short circuit clearance is [Enabled], the inverter short circuit clearance time is extended to 4 seconds.
2.3.5 Multi-module parallel system operation
To expand the overall UPS system rating, up to four PowerWave PW3000/TP UPS cabinets can be connected together to operate as a parallel UPS system. This is achieved by connecting each cabinet’s output power terminals in parallel at an external load distribution panel and linking together the parallel control bus in each cabinet to effectively provide a common parallel control bus. The parallel control bus cable is connected to a socket located near the top rear of the cabinet which is covered by a blanking plate when not used (item 12 in Figure 2.7).
It is essential that any installed UPS power protection system can be expanded to meet a growing load demand without compromising the existing load supply. This situation is easily managed by a PowerWave PW3000/TP system which makes it possible to add a further cabinet to an existing UPS system without disrupting the load supply.
Note: Every PowerWave PW3000/TP cabinet is supplied with all the features required for parallel operation to eliminate
any need for time-consuming or expensive upgrading on site.
WARNING: This mode is recommended only if the connected load equipment can tolerate a power interruption of up to 3 to 5 ms during the transfer period. The ‘on-line’ mode must always be used for critical load protection.
2: General Description
‘Capacity’ versus ‘redundant module’ system
The paralleled UPS modules can be operated as either a capacity or redundant module system. The difference between
the two is that a ‘capacity’ system is rated such that ALL the UPS modules are required to furnish the specified full load power, whereas a ‘redundant-module’ system is designed with one (or more) UPS module over and above that required to supply the full load.
In a redundant-module system it is therefore possible to lose one (or more) UPS module without disrupting the load, whereas this is not the case in a capacity system, where the loss of one UPS module would automatically transfer the load to the bypass supply.
Parallel control bus
All the UPS modules within are connected to a parallel control bus which carries various inter-module control signals used for frequency synchronisation, load sharing etc. By using sensing signals passed over the parallel control bus, each module can electronically compare its own frequency and output current with that of its neighbouring module and carry out fine adjustments to achieve balanced conditions.
2.4 PowerWave PW3000/TP User controls
The following illustrations show the location of the PowerWave PW3000/TP power switches and fused isolators that are used when operating the equipment. The control panel is described in paragraph 2.5 and the various optional input/output connecting facilities are described in Chapter 7.
Figure 2.7 PowerWave PW3000/TP Controls identification
1414
10/20 kVA Front View 10 kVA Back View 20 kVA Back View
1
2
3
4
5 5
6
7
8
9
10 11
12
14
5
6
7
8
9
10 11
13
14
17 17
13
12
TS_604_01 PowerWave PW3000/TP User Manual UK 5/1/18 11
2: General Description
Figure 2.8 PW3000/TP Matching battery cabinet
1
Operator Panel LCD Display
2
Operator Panel LEDs
3
Operator Panel Control Keys
4
Ventilation inlets
5
Power terminal block cover
6
Mains and Bypass input supply circuit breakers
7
Backfeed protection connection terminals
8
Cooling extractor fans
9
AS400 Interface slot
10
Emergency Power Off (EPO) contact
11
RS232 port / USB port
12
Parallel port (for parallel control bus cable)
13
SNMP Interface slot
14
Maintenance Bypass Isolator cover plate
15
Battery fuses
16
Battery terminal connection cover
17
Wheel, support brackets and brakes
Battery Cabinet Front View
4
Battery Cabinet Back View
16
15
4
17
17
17
17
2: General Description
2.5 UPS Control panel
The UPS Control panel contains four status LED indicators, an LCD display and a row of selection keys which include an ON/OFF key and three navigation keys. The navigation keys are used in conjunction with various monitoring and configuration menus.
2.5.1 Status LED indicators
The four LEDs located along the top of the UPS Control panel indicate the UPS operating status and may FLASH or remain constantly OFF or ON. Under some circumstances all five LEDs will illuminate in turn in a ‘rotating’ sequence.
The following table illustrates the LED states for various operating conditions – an ‘X’ indicates that the state is undefined and depends on the failure or warning mode.
Table 2.3 Status LED interpretation
2.5.2 LCD Display
A complete overview of the UPS operating status including the input, output, battery and load parameters is provided by the LCD display.
Under normal operating conditions the display shows white text on a blue back-light but under fault conditions this changes to dark text on an orange back-light, accompanied by an audible warning, as shown in the adjacent table.
Default Screen
During start up the LCD Display shows a ‘Welcome’ logo screen for around 5 seconds while the UPS initialises then changes to the ‘default status’ screen shown is Figure 2.10. The ‘default status’ screen is shown automatically during normal operation if the control panel keys are not operated for 15 minutes.
UPS STATUS NORMAL (green) BATTERY (amber) BYPASS (amber) FAULT (red)
Bypass Mode / with no output power FLASH X
Bypass Supply abnormal FLASH
Bypass Mode / with output power ON X
UPS Turning ON SEQUENCE SEQUENCE SEQUENCE SEQUENCE
On-line mode ON X
On-battery mode ON ON X
ECO mode (HE Mode) ON ON X
Battery Test mode SEQUENCE SEQUENCE SEQUENCE SEQUENCE
Fault mode XON
Warning XXXFLASH
Status
LCD
Selection
LEDs
Display
Keys
Figure 2.9 UPS Control Panel
UPS Condition Buzzer Status
Active failure Continuous
Active warning Beep once per second
UPS on Battery Beep every four seconds
Low Battery Beep every second
On Bypass Beep every two minutes
Overload Beep twice per second
Table 2.4 Audible warnings
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