E400 Series UPS User Manual E420, E430, E440, E460, E480 models
Dale Power Solutions Ltd
User Manual
E400 Series UPS
E420
E430
E440
E460
E480
Dale Power Solutions Ltd
Salter Road, Eastfield Industrial Estate, Scarborough, North Yorkshire YO11 3DU, United Kingdom
Telephone: +44 (0) 1723 583511 Email: [email protected] www.dalepowersolutions.com
Registration No 941798 England
S5264FU09 Rev 2
Dale Power Solutions plc own the copyright to this document, which may not be copied, reproduced or
disclosed to a third party without written permission.
Dale Power Solutions plc reserves the right to make changes in specification without notice or liability. All
information is subject to Dale Power Solutions plc own data and is considered accurate at time of
publishing.
Contents
Safety ............................................................................................................................................................5
Warning symbols ....................................................................................................................................... 5
Conformity and standards ..........................................................................................................................6
Energy conservation and environmental protection ...............................................................................6
Product description.....................................................................................................................................7
Applications ............................................................................................................................................... 7
Product range ............................................................................................................................................ 7
System block diagram ............................................................................................................................... 8
Split bypass input ................................................................................................................................................. 8
Static transfer switch ............................................................................................................................................ 8
Battery temperature compensation ........................................................................................................... 9
Redundant control power supply board .................................................................................................... 9
Single phase outlet .................................................................................................................................... 9
Multi-unit operation .................................................................................................................................... 9
Installation ................................................................................................................................................. 10
Siting considerations ............................................................................................................................... 10
Wiring considerations .............................................................................................................................. 10
Units in parallel ................................................................................................................................................... 11
Earth leakage current .............................................................................................................................. 11
Operation from a generator ..................................................................................................................... 12
Cable sizes .............................................................................................................................................. 12
Unpacking the UPS ................................................................................................................................. 12
Internal layout (door open) ...................................................................................................................... 13
Wiring the UPS ........................................................................................................................................ 14
Wiring units in parallel ............................................................................................................................. 17
Operation ................................................................................................................................................... 19
Working modes........................................................................................................................................ 19
On-Line mode ..................................................................................................................................................... 19
Battery mode ...................................................................................................................................................... 19
Auto-restart mode ............................................................................................................................................... 19
Bypass mode ...................................................................................................................................................... 19
ECO mode .......................................................................................................................................................... 20
Frequency converter mode ................................................................................................................................. 20
Before switch on ...................................................................................................................................... 20
Switching on the UPS .............................................................................................................................. 20
Commissioning test procedure ................................................................................................................ 22
Switching off the UPS .............................................................................................................................. 22
Transferring the load to an EMBS ........................................................................................................... 22
Front panel controls and indicators ......................................................................................................... 23
Navigating the system menu .............................................................................................................................. 24
Input information ................................................................................................................................................. 24
Output information .............................................................................................................................................. 25
Inverter information ............................................................................................................................................. 25
Battery information .............................................................................................................................................. 25
State information ................................................................................................................................................. 25
Parallel information ............................................................................................................................................. 26
Command information ......................................................................................................................................... 26
Setting information .............................................................................................................................................. 26
Recorded events list............................................................................................................................................ 26
Version information ............................................................................................................................................. 27
Change settings ...................................................................................................................................... 27
LCD display messages ........................................................................................................................... 29
Maintenance .............................................................................................................................................. 30
Fan .......................................................................................................................................................... 30
Battery .................................................................................................................................................... 30
Battery change ....................................................................................................................................... 30
Visual check............................................................................................................................................ 30
UPS status check ................................................................................................................................... 30
Function check ....................................................................................................................................... 31
Troubleshooting ....................................................................................................................................... 31
Black Start procedure ............................................................................................................................. 31
Events ..................................................................................................................................................... 31
Alarm information ................................................................................................................................... 32
Frequently asked questions.................................................................................................................... 34
Appendix 1 Signals options .................................................................................................................... 35
RS232 serial port .................................................................................................................................... 35
Contact closure for external breakers .................................................................................................... 35
SNMP card with environmental monitor ................................................................................................. 36
Relay card (monitoring and control) ....................................................................................................... 37
Dry contact relay signals ........................................................................................................................ 38
Battery temperature sensor .................................................................................................................... 39
Appendix 2 Parallel operation ................................................................................................................. 40
LBS (Load Bus Synchronisation)............................................................................................................ 40
Remote emergency power off (EPO) ..................................................................................................... 40
Appendix 3 Specifications ....................................................................................................................... 41
Electrical ................................................................................................................................................. 41
Mechanical.............................................................................................................................................. 43
Appendix 4 Optional equipment ............................................................................................................. 43
Safety
WARNING!
THIS EQUIPMENT MUST BE INSTALLED, COMMISSIONED AND MAINTAINED BY A
QUALIFIED ELECTRICIAN.
There are dangerous voltages and high temperatures inside the UPS. During installation, operation and
maintenance please abide by local safety instructions, regulations and laws. Failure to do so may result in
injury to personnel or damage to equipment. Safety instructions in this manual are supplementary to local
safety instructions. Dale Power Solutions plc does not accept any liability caused as a result of failure to
follow safety instructions. Please note the following:
Do not use the UPS for any other purpose than the one for which it was designed.
Do not exceed the rated load of the UPS.
Under no circumstances open the UPS. There are high voltages inside that can cause electric shock.
If the UPS requires internal maintenance or battery replacement, contact Dale Power Solutions plc.
Keep the UPS in a dry well ventilated location away from any area or situation in which there is a risk
of fire, such as direct sunlight or other sources of heat.
If the UPS emits smoke, turn off immediately the input circuit breaker and battery circuit breaker, and
contact Dale Power Solutions plc.
WARNING!
THIS IS A PRODUCT FOR COMMERCIAL AND INDUSTRIAL APPLICATION IN THE
SECOND ENVIRONMENT. INSTALLATION RESTRICTIONS OR ADDITIONAL MEASURES
MAY BE NEEDED TO PREVENT DISTURBANCES (AS STATED IN EN62040-2:2006).
Warning symbols
The safety symbols used in this manual are shown in table below. They alert you to important safety
information that you need to be aware of when installing, operating and maintaining the UPS.
Safety Symbol
Indication
Attention
Static discharge sensitive
Electric shock
Caution: A caution describes a situation in which there is a risk of damage to equipment.
WARNING!
A WARNING DESCRIBES A SITUATION IN WHICH THERE IS A RISK OF INJURY OR
DEATH TO PERSONNEL.
Conformity and standards
This equipment complies with CE directives 73/23 & 93/68 (LV Safety) and 89/336 (EMC), and the
following product standards for Uninterruptible Power System (UPS):
IEC 62040-1-1 General and safety requirements for use in operator access area
IEC 62040-2 EMC requirements; Class C3 compliant
IEC 62040-3 Performance requirements and test methods
Caution: Continued compliance requires installation in accordance with the instructions this
manual and the use of manufacturer approved accessories only.
According to IEC62040, this is a low emission class C3 Uninterruptible Power System (UPS) product. In a
residential environment, this product may nevertheless cause radio interference, in which case, you may
be required to take additional measures.
Energy conservation and environmental protection
With an efficiency of greater than 97% in ECO mode the UPS meets the technical specifications for
energy conservation. An input power factor of 0.99 results in minimum current contamination of the power
grid. All the material and components comply with the ROSH standards, ensuring that no hazardous
waste is produced.
Product description
Applications
This UPS series provides reliable AC backup power to various types of equipment, for example computer
centres, network management centres, auto control systems, and telecommunication systems.
The UPS can be installed and operated as a single unit or it can be operated with other units of the same
type in parallel N+1 redundant mode for additional reliability or in parallel capacity mode for increased
output rating.
Product range
The following table lists the models available in the E400 series. All models are designed to operate with
an external battery.
Capacity
Model
20 kVA
30 kVA
40 kVA
60 kVA
80 kVA
E420
E430
E440
E460
E480
Battery location
External
E420, E430, E440
E460, E480
System block diagram
The UPS is connected between the mains a.c. input source and the critical load to provide uninterruptible
power free from disturbances on the mains supply such as voltage and frequency variations. This is
achieved using high-frequency double-conversion pulse width modulation (PWM) and full digital signal
processing (DSP) control.
As shown in Figure 1, input mains is converted to d.c., which in turn feeds a d.c./d.c. battery charger and
an inverter. The inverter then converts the battery voltage to a clean a.c. source, output-independent of
the input. The battery powers the load through the inverter in case of an input mains power failure.
If the inverter is unable to supply power for any reason the load is supplied via the bypass circuit, which
includes the bypass input breaker and the static transfer switch (STS).
If maintenance or repair is necessary the UPS can supply the load via the internal and manually
controlled maintenance bypass breaker. With the exception of the maintenance bypass breakers (internal
and external) all the breakers shown are closed during normal UPS operation.
External bypass (recommended)
UPS
Bypass
supply
Mains
supply
Manual
maintenance
breaker
Input
breakers
REC/PFC
Inverter
Output
STS
Output
breaker
Battery
breaker
Battery
Figure 1 Single unit block diagram
An external bypass breaker enables a UPS to be replaced without interrupting the load and is
recommended in most installations.
Split bypass input
Figure 1 shows the UPS in what is known as the ‘split bypass’ configuration, in which a separate input
supply (the bypass supply) feeds the internal bypass circuits instead of the mains supply. In this
configuration the link (dotted line) between mains and bypass supply is removed.
Static transfer switch
The static transfer switch (STS) is a power-electronic circuit. During normal operation the load is supplied
via the inverter, however in the event of a UPS overload or inverter failure, the STS transfers the load
automatically to the bypass circuit. To provide a clean (no-break) load transfer between the inverter
output and bypass line, the inverter output is synchronized to the bypass supply during normal operating
conditions.
Battery temperature compensation
Using optional external battery temperature sensors the UPS is capable of optimising the battery charger
output to enhance battery life and performance. This is a non-standard feature that must be purchased
separately. Contact your distributor for details.
Redundant control power supply board
The UPS is equipped with two identical and fully redundant control power supply boards. Each board is
powered by the input a.c. and battery d.c. Therefore, if one of these sources or even if a board fails the
UPS continues to operate normally. This feature further enhances the reliability of the system.
Single phase outlet
A 250 Va.c. 5 A single-phase fused outlet is provided on the front panel. This supply is generated from
the battery, independent of other UPS power circuits, and can be used for ease of testing, commissioning,
and servicing. This output is accessible when the cabinet door is open.
FUSE
250VAC 5A
Multi-unit operation
Up to four units can be operated in N+X parallel mode to provide additional power or higher reliability. In
this configuration the load is shared equally between the units.
It is also possible to operate with load bus synchronisation (LBS), which allows the load to be transferred
seamlessly between two UPS systems. Each system can be a single UPS or a parallel group of units.
Multi-unit operation is enabled by:
Hardware and firmware built into each UPS, controlled by software settings.
Parallel control cables, connected in a ring to enhance reliability. Dual-bus control cables are
connected between any two UPS modules of each bus. The intelligent paralleling logic provides the
user with maximum flexibility. For example, shutting down or starting up UPS units in a parallel
system can be done in any sequence. Transfers between Normal and Bypass modes of operation
are synchronised and self-recovering.
The total load of a multi-unit system can be queried from each unit’s LCD display.
Installation
Siting considerations
Before unpacking and installing the unit, consider the following:
DONOT expose the UPS to high temperatures, water ingress, flammable or corrosive gas, dust, direct
sunlight or explosives.
Locate the UPS indoors on a level surface as close as possible to the equipment it will be powering to
minimise cable voltage drops. If required, allow enough spare cable to move the UPS after
installation.
Maintain a gap of at least 50 cm from walls or other equipment, and ensure the ventilation holes/slots
at the front and rear of the units are not obstructed.
For improved product reliability ensure cool air is available at the front of the unit.
Battery location. We recommend you site batteries in a separate room to maintain the optimum
working temperature of between 15°C and 25°C. As an approximation, battery life is halved for every
10K (10°C) rise in temperature.
Wiring considerations
To ensure a safe installation please follow these instructions and the local electrical code of the area or
country in which you are installing the equipment:
If the UPS is to be supplied from a local transformer, ensure the transformer kVA rating is at least
50% greater than the UPS output kVA rating and the output is 4-wire star configuration.
Use circuit breakers and cables with the correct rating (see the next section).
Always fit an MCB between the mains supply live lines only and the UPS input (see Figure 2).
Caution: Do not fit an MCB in the neutral line.
Because of the high leakage current (see Earth leakage current below), permanently hard wire all the
a.c. cables.
Fit ring terminal crimps on the ends of all cables that fasten to studs (see Cable sizes on page 12).
Fit a 3 pole MCCB, with a suitable d.c. voltage rating and breaking capacity, between the battery and
the UPS (see Figure 2).
Caution: The UPS is designed to work with a centre-tap battery only.
Although it may not be absolutely necessary, we recommend you fit an MCB between the UPS and
the load to protect the output load and cables in the event of a fault (see Figure 2). You may also wish
to connect the UPS output to your load via a power distribution unit (PDU).
Ensure correct phase rotation in the 3-phase wiring.
MCB
Input
L1
MCB
L1
L2
L2
L3
L3
UPS
Load
N
N
E
E
MCCB
(not MCB)
Figure 2 Power cable wiring configuration for a single UPS
Units in parallel
A group of paralleled units behave as if it were one large UPS. To ensure units share the load equally and
the system complies with relevant wiring regulations, follow these requirements:
Use units of the same rating only and connect them to the same bypass source.
Reference the Bypass and the Main input sources to the same neutral potential.
Ensure that any RCDs (residual current devices) are appropriately set and located (see Earth leakage
current below).
Connect the outputs of all units to a common output bus.
Ensure the length and specification of power cables including the bypass input cables and UPS
output cables of each unit is the same. This ensures load sharing when operating in bypass mode.
Note: Optional isolation transformers are available for applications where sources do not share the
same neutral reference or where the neutral is not available.
Earth leakage current
The residual earth current introduced by the RFI suppression filter inside the UPS is between 3.5 mA and
1000 mA. We recommend that you verify the selectivity of the residual current detector (RCD) with all
other differential devices both upstream of the input distribution board and downstream (towards the
load).
Caution: To avoid false alarms, locate earth leakage monitoring devices upstream of the
common neutral point when used in systems with split bypass input or when used in paralleled
UPS configurations. Alternatively use the device to monitor the combined 4-wire rectifier and
split bypass input currents.
Ensure that an RCD upstream of the UPS has these characteristics:
Sensitive to d.c. unidirectional (class A) pulses
Insensitive to transient current pulses
Average sensitivity adjustable between 0.3 and 1A
Such residual current circuit breakers (RCCB) are identified by the symbols:
Operation from a generator
As a guide we recommend that the load capacity should be less than 30% of the generator capacity, and
the generator rating should be 1.5 to 2 times the rating of the UPS, depending on the type of generator
used.
Caution: Ensure that the neutral line from the generator is permanently connected to the
mains neutral line. Do not use an MCB or any other type of switch in this line.
Cable sizes
Use the following sizes of cables to connect the UPS between mains power, batteries and the load.
1
UPS rating
(kVA)
AC input / output
2
(mm )
DC input
2
(mm )
Ground
2
(mm )
20
10
25
6
30
16
35
6
40
25
50
10
60
35
70
25
80
50
95
35
Busbar stud size
Bolts: M6, holes: 6 mm
Torque
(Nm)
1
5
Most connections are made to terminal blocks, however some neutral and battery cable connections
are made to studs.
Caution: Size the ground (earth) conductor for the a.c. supply fault rating, cable lengths and
type of protection.
External bypass and battery breakers are specified at the time of purchase.
Unpacking the UPS
To unpack the UPS:
1. Cut off the shrink wrapping carefully from around the unit.
2. Cut the straps securing the unit to the pallet, and remove the corner protection strips, disposing of
them correctly.
3. Remove and retain the documentation, CD and leads from inside the door of the UPS.
4. Dispose of packets of desiccant correctly.
5. Using a forklift truck or similar, move the UPS off the pallet.
WARNING!
TAKE CARE WHEN MOVING THE UPS OFF THE PALLET. IT WEIGHTS IN EXCESS OF
186 KG AND COULD FALL.
6. Check the appearance of the UPS to see if is damaged. If any damage is found, do not switch on the
UPS and contact your distributor.
7. Check the packing list. Contact your distributor if any of the accessories are missing.
Internal layout (door open)
Figure 3 shows the internal layout with the door open and all protective covers removed.
MODBUS
(battery monitor
connector)
RS485
port
RS232 RS485
port
port
Black start
button
Fuse
(5A)
Fused mains socket
(250VAC 5A)
Battery number
select jumpers
SNMP slot
LBS port
Intelligent slot
(relay signals)
Parallel port 1
Dry contact alarms
Parallel port 2
External breaker
dry contact switches
Connector to door
display
Bypass input breaker
Maintenance
bypass breaker
Mains breaker
Output breaker
Power terminals
Figure 3 E420, E430 and E440 internal layout
Note: E460/E480 units are taller and the E480 is fitted with larger breakers and terminals in the lower
part of the cabinet. Terminal and battery connections vary from those shown above.
Wiring the UPS
Before connecting the UPS, read the siting considerations above and check you have selected breakers
and cables with the correct ratings.
WARNING!
BEFORE ATTEMPTING TO WIRE THE UPS ENSURE ALL BREAKERS ARE IN THE OFF
POSITION AND WHERE POSSIBLE LOCKED OFF.
Caution: DO NOT mix batteries from different manufacturers or mix different types of
batteries. DO NOT use old and new batteries together.
Caution: Ensure correct phase rotation in the 3-phase wiring.
To connect the UPS to your system:
1. Unlock and open the front door of the UPS.
2. Check the external battery as follows:
a. Ensure that the number of 12 V blocks in each string (positive and negative) is equal and matches
the number specified in your order.
b. Remove the cover plate below the black start switch and check that the correct combination of
battery jumpers is fitted for the number of batteries in the system.
Not used
J3
J2
J1
Figure 4 Example showing links fitted for 40 batteries
No of batteries
J3
J2
J1
32
Not fitted
Not fitted
Not fitted
34
Not fitted
Not fitted
Fitted
36
Fitted
Not fitted
Fitted
38
Not fitted
Fitted
Fitted
40
Fitted
Fitted
Fitted
c. Measure the battery voltage in each string, which should be approximately 192 Vd.c. for 16
batteries, 204 Vd.c. for 17 batteries, 216 Vd.c. for 18 batteries, 228 Vd.c. for 19 batteries and 240
Vd.c. for 20 batteries.
3. Remove the lower cover to gain access to the breakers and terminals.
4. Feed all cables through the bottom of the unit, moving the securing plate as needed. If the unit is part
of a parallel system, fit the parallel cables before the main power cables.
Caution: Where terminal blocks are not available for connections, fit ring crimps to the
ends of cables. This is the case for the E480 battery cables.
5. Wire the input and output earth cables to the PE (protective earth) terminals. Ensure that both
connections are made.
PE BAT+BAT− BAT+BAT− L1
L2
L3
L1
L2
L3
L1
L2
L3
PE
N
Battery 1
Battery 2
Main input
Bypass input
(split bypass
systems only)
N
Output
Figure 5 Cable connections for E420, E430, E440 and E460 units
Battery centre tap
Links removed in a split bypass system
PE
L1
L1A
L1B
L2A
L2B
L3A
L3B
N
L2
L3
PE
N
Input
Output
BAT+
Battery
BAT−
Figure 6 Cable connections for E480 units
6. Wire output and battery cables to the terminals as shown in the appropriate diagram above. On E480
units, feed the battery centre-tap cable round the back of the terminal block and wire it to the top of
the left-hand neutral terminal as shown above.
7. Wire the input as follows:
E420/E430/E440/E460: to Main input (Figure 5)
E480: to L1A, L2A, L3A (Figure 6)
8. Secure all cables to the punched plate in the bottom with cable ties.
9. If your UPS is configured for split bypass operation:
a. Check the following: E480: that the links in Figure 6 have been removed.
E420/E430/E440/E460: that the short breaker links are fitted (Figure 7).
Shortened breaker links
Figure 7 E420, E430, E440, E460 breakers linked for split bypass operation
b. Wire the split bypass input as follows:
E420/E430/E440/E460: to Bypass input (Figure 5)
E480: to L1B, L2B, L3B (Figure 6)
WARNING!
CHECK THAT ALL CABLES ARE WIRED TO THE CORRECT TERMINALS. DO NOT
REVERSE THE INPUT LIVE AND NEUTRAL CONNECTIONS OR THE POLARITY OF
ANY OF THE BATTERY CABLES.
10. If your unit has an SNMP card fitted or you plan to use the RS232 port or other standard signals, see
Appendix 1 Signals options on page 35.
11. Close and lock the front door.
Wiring units in parallel
You can operate 2, 3 or 4 units in parallel.
Caution: Each unit requires its own battery bank. You cannot use a common battery bank for
more than one unit working in parallel mode.
When operating units in parallel you must not use the built-in bypass as it is rated for one unit
only. If you need a bypass for the parallel system it must be wired as an external item.
WARNING!
BEFORE ATTEMPTING TO WIRE THE UNITS, ENSURE ALL BREAKERS ARE IN THE OFF
POSITION.
To connect two or more units in parallel:
1. Wire the power cables and optional signals as described above.
2. If a system bypass is required, wire in a separate MCB capable of carrying the total system load
current as shown below. This is not required if you have only two units working in N+1 mode and the
load never exceeds the rating of a single unit.
Input distribution
Input
mains
supply
Bypass
mains
supply
Battery
breaker
Input
mains
supply
Bypass
mains
supply
Battery
breaker
UPS 1
Battery
Input
mains
supply
Battery
breaker
UPS 2
Battery
Output
Bypass
mains
supply
UPS 3
Battery
Output
Distribution panel
Load
Figure 8 Units connected in parallel
Output
W rap-around
(maintenance)
bypass supply
3. Below the black start switch on each UPS, remove the plate that covers the parallel connectors.
4. Connect the CAN bus, labelled Parallel Port 1 and Parallel Port 2, in a ring arrangement using the
supplied cables as shown below. Make sure you wire all CAN bus connectors and secure them in
place using their captive screw locks.
UPS 1
Parallel Port 1
Parallel Port 2
LBS
Parallel Port 1
Parallel Port 2
LBS
Parallel Port 1
Parallel Port 2
LBS
UPS 2
UPS 3
5. Replace the protective cover to protect the CAN bus cables against accidental removal.
6. Optional connection. You can control and monitor all units using the RS232 port on one UPS. To do
this, connect the RS485 socket of one unit to RS485 socket of the next unit and so on until all units
are connected in a daisy-chain as shown below.
Note: Do not connect the units in a loop.
UPS 1
Modbus
SNMP
RS232
RS485
RS485
UPS 2
Modbus
SNMP
RS232
RS485
RS485
UPS 3
Modbus
SNMP
RS232
RS485
RS485
7. If required, wire the LBS (load bus synchronisation) connection as described on page 40.
8. If required, wire a remote emergency power off (EPO) switch as described on page 40.
Operation
Working modes
The UPS has the following modes of operation:
On-line mode
Battery mode
Auto-restart mode
Bypass mode
ECO mode
Frequency converter mode
Each operating mode is described below.
On-Line mode
This is the default mode of operation in which the load is supplied via the inverter when the a.c. input and
load are within their normal ranges. The battery is trickle charged in this mode.
During fault conditions the UPS automatically switches to either bypass mode or battery mode without
interruption of power to the load.
Battery mode
In battery mode the load is supplied from the battery via the inverter, the UPS beeps every 3 s, and the
rectifier and charger are turned off. The UPS switches to battery mode when there is no a.c. input or the
a.c. input is outside its normal range. On the front panel the Mains LED if off and the Battery LED is on.
When the battery reaches a pre-set low limit, the system gives a low battery voltage alarm signal, the
LCD provides a low battery alarm, and the UPS beeps every second. Eventually the UPS shuts down to
prevent damage to the batteries.
When the a.c. mains is restored the inverter starts automatically and the UPS reverts to on-line mode. If
you turn off the UPS in battery mode it restarts in bypass mode and you must press the INVERTER ON
button to start the inverter.
Auto-restart mode
Following an extended a.c. mains failure the battery will become exhausted. When the battery reaches
the end of discharge (EOD) voltage the inverter shuts down and no more power is supplied to the load.
By default the UPS remains shut down after EOD. However it can be programmed to automatically restart
after a time delay. This is normally done by the commissioning engineer.
Bypass mode
In bypass mode the load is supplied directly from the a.c. mains input and the battery is charged. The
UPS switches to bypass mode when any of the following conditions occur:
An output overload – the unit beeps twice every second, indicating that the load must be reduced to
within its normal range as soon as possible. Once the overload is removed the inverter re-starts after
a 5 minute delay. If the UPS is overloaded too many times in any one hour it will eventually remain in
bypass mode.
The UPS is too hot – the UPS reverts to on-line mode as soon as the unit temperature returns to
normal.
The UPS fails – a serious fault has occurred within the UPS that must be repaired.
The UPS inverter is turned off.
In bypass mode the Inverter LED is off and the Bypass LED is on.
ECO mode
If specified, your UPS may be set to operate in ECO mode instead of on-line mode. In ECO mode the
load is supplied via the bypass circuit and not the inverter, allowing the UPS to work at higher efficiency.
The battery is trickle charged in this mode. If the a.c. input is lost or goes beyond its normal range the
UPS automatically switches to battery mode, however, the transfer speed is slower than on-line mode
and may not be suitable for all applications.
Frequency converter mode
The UPS can be programmed to work as a frequency converter to provide either a 50 or 60 HZ a.c.
output voltage. In this mode static bypass operation is disabled and the UPS may operate in battery
mode.
Before switch on
Before turning on the unit for the first time or after any wiring or battery changes:
1. Read the section above on working modes.
2. Check all the wiring.
3. Check that the rated load does not exceed the rated output of the UPS.
4. If the UPS is supplied by a generator, check that the generator is correctly rated and wired (see
Operation from a generator on page 11).
5. Apply the wheel locks and screw down the feet to prevent the UPS from moving.
Switching on the UPS
Note: It is important to switch on your UPS as described below as damage may occur when supplying
certain load types.
Caution: When using the UPS for the first time, charge the batteries for at least 8 hours as
they may have lost charge during the time between production and installation.
To switch on the UPS:
1. Ensure all UPS breakers are switched off.
2. Switch on the battery breaker.
3. Switch on the distribution breaker (including a split supply breaker if this is in use).
4. Switch on the UPS bypass and output breakers. The Bypass and Output LEDs are illuminated. You
should immediately hear the fans start up
The LCD should begin to work. The model number and working mode is initially displayed on the front
panel LCD. After a few seconds this changes to system information.
5. Switch on the UPS main breaker.
After a few seconds the Mains and Inverter LEDs are illuminated and the Bypass LED goes out (see
Figure 9 on page 23).
Note: If switching on into a transformer load, ensure the UPS is initially working in bypass mode
before switching to on-line mode.
6. If possible apply the load gradually.
Caution: If the UPS input power is provided by a generator it is important to apply the load
gradually.
In this state your unit is working correctly and delivering power to the load. There is no need to alter any
settings.
Commissioning test procedure
Perform this test once the unit is operating normally.
1. Switch off the mains to simulate a utility failure. The rectifier should turn off and the battery should
feed the inverter without interruption. The battery, inverter and output indictors should be on.
2. Switch on the mains to simulate utility recovery, the rectifier should restart automatically after 10 s
and supply the load.
Switching off the UPS
Caution: All power to the load will be removed when you follow this procedure.
To switch off the UPS:
1. Switch off the battery breaker according to the manufacturer’s instructions.
2. Switch off the mains and bypass breakers. If the UPS has a dual mains supply, switch off both
supplies and lock them out.
Transferring the load to an EMBS
Transferring to an emergency backup supply (EMBS) is only possible if an external maintenance bypass
breaker has been wired into the system.
To transfer to an EMBS while maintaining the load:
1. Switch off the UPS inverter to put the unit into static bypass.
2. Switch on the external maintenance bypass breaker.
3. Switch off the UPS and battery as described above. The UPS is now off.
4. Perform the required maintenance work on the UPS.
5. After the maintenance work is complete, switch on the UPS as described above.
6. Switch off the external maintenance bypass breaker. The inverter should start automatically.
Front panel controls and indicators
The front panel controls and indicators are shown in Figure 9. Using the buttons, LEDs and the menu
structure displayed on the LCD panel you can:
Check the status of the UPS
Check and make changes to the settings
Note: Your UPS is setup to your requirements by the distributor prior to delivery. There is normally
no reason to change any of the settings.
Esc
Bypass
Mains
Ent
Fault
Inverter
Output
+ −
F
INVERTER ON
INVERTER OFF
FAULTCLEAR
SILENTON/
OFF
EPO
1
2
3
4
5
6
7
8
9
0
Figure 9 Front panel controls and indicators
The LCD panel is hinged along its top edge and can be pulled out at the bottom to create different
viewing angles if required. It is also possible to connect a second LCD for remote monitoring and control.
Contact your distributor for details.
Caution: To ensure no one accidentally catches a tilted panel it is advisable to return it to its
vertical position when not in use.
The following table describes the operation of the LED indicators:
LED
Colour
Description
Output
green
On when the load is being supplied
Inverter
green
On when the UPS is supplying power. Flashes when the inverter is overloaded or it is faulty
Battery
green
On when power is supplied from the battery. Flashes if the battery is low, disconnected,
reversed polarity, not charging or if the voltage is abnormally high
Mains
green
On when mains is present and within limits. Flashes if the mains is outside its normal range
Bypass
green
On when power is supplied via the bypass. Flashes when the bypass is not available, out of
limits, overcurrent or the switch or wiring are faulty
Fault
red
On when there is any type of fault
The following table describes the button functions:
Button
Definition
Ent
Press to confirm an operation or enter a lower menu level
Esc
Press to cancel an operation or return to the previous menu level
Press to select another menu item or change a parameter
Press to select another menu item or change a parameter
F
Press to view event and alarm logs
0 to 9
Press to enter a digit from 0 to 9 when making changes to settings
EPO
Emergency Power Off. Press to disconnect power from the load. The rectifier, inverter, static
bypass and battery operation are disabled
Inverter ON
Press to enable inverter operation
Inverter OFF
Press to inhibit inverter operation
Fault Clear
Press to reset UPS functions once the fault is cleared
Silence ON/OFF
Press to toggle the buzzer on and off. After a fault the buzzer is re-enabled
Navigating the system menu
The system menu consists of a series of pages you access via a set of tabs and the front panel keys.
To display a menu page:
1. Press
or
to display the tabs. The Input tab is highlighted and the input information is displayed
on the screen below the tab (as shown in the following sections).
2. Press
or
displayed:
repeatedly to scroll along the tabs. Eventually the following set of additional tabs is
Note: The values shown below are examples only. The values in your system are likely to be different.
Input information
Output information
Inverter information
Battery information
State information
Parallel information
Command information
Setting information
Recorded events list
This page shows up to 120 of the most recently recorded events (normal operation and fault information).
Version information
Change settings
At the time of installation your installer will alter the settings to meet your order requirements, however if
you need to make a change, use the following procedure.
To change a system setting:
1. Press
or
to highlight the Setting tab.
2. Press Ent. The first item on the Setting page is highlighted (this is usually Language).
3. Either press Ent to change the language settings, or press
and then press Ent.
4. Depending on the parameter either press
or
or
to highlight another parameter
, or use the number keys to change the setting.
5. Press Ent to save the new setting (or press Esc to cancel the change).
The changeable parameters and their values are shown in the following table:
Setting Parameter
Description
Language
Change the display language
Password
Set if required. _ _ _ _ _ _ (range 0 to 9, 6 digits)
Data setting
YYYY-MM-DD
Self-Test Date
Disable (default)
Monthly
Day of month: _ _
Time: _ _ : _ _
Duration: _ _ (range 1 to 99 minutes)
Weekly
Day: Mon, Tues, Wed, Thurs, Fri, Sat, Sun
Time: _ _ : _ _
Duration: _ _ (range 1 to 99 minutes)
Timing of ON/OFF
Disable (default)
Everyday
Turn ON time _ _ : _ _ Turn OFF time _ _ : _ _ (hh:mm)
Weekly
Turn ON day: Mon, Tues, Wed, Thurs, Fri, Sat, Sun
Turn ON time _ _ : _ _
Turn ON day: Mon, Tues, Wed, Thurs, Fri, Sat, Sun
Turn ON time _ _ : _ _
hh:mm
Setting Parameter
Description
Backlight Delay
Adjust how long the backlight stays on for in minutes
Contrast
Adjust the display contrast
Work Mode
Single (default, stand-alone UPS in on-line mode)
ECO (single UPS only, UPS in off-line high efficiency mode)
Master (sets UPS as master in a master/slave system)
Slave (sets UPS as a slave in a master/slave system)
Parallel
LBS Setting
Load bus synchronisation in an A + B system.
Disable (default), Master, Slave
System Voltage Level
220 V
System Frequency Level
50 Hz (default)
Auto Turn-on
Allows the UPS to auto-restart when mains is re-applied after a 100% battery
discharge following a mains failure.
Enable (default) Disable
Bypass frequency range
1%
2%
3%
Bypass Volt Upper Limit
5%
10%
15% (default)
Bypass Volt Lower Limit
-20%
-30%
-45% (default)
Invert-Volt fine
Allows you to fine adjust the inverter output
0% 0.5% 1% 1.5% 2% 2.5% 3% 3.5% 4% 4.5% 5%
Parallel ID
Set the UPS identity in a parallel configuration
1 (default)
2
3
4
Parallel Amount
Set the number of units in a parallel configuration
1 (default)
2
3
4
Parallel Redundancy
Set the number of paralleled redundant units in an N + x system
0 (default)
1
2
3
Switch Bypass time
3
M/S Alternate Cyc (month)
Set the master/slave alternate times on months
1
2
3
4
5
6
Power Walk In (s)
Set the input current ramp up time
5 (default)
10
15
20
Single Battery Voltage (V)
Set the voltage of the battery blocks
2
4
6
12 (default)
Battery Number
Set the number of batteries on a string
2x16
2x17
2x18
2x19
2x20
Battery Group
Set the number of battery strings in a group
1
2
3
4
5
6
230 V
4
240 V (default)
60 Hz
5
4%
5% (default)
6 (default)
7
Single Battery Capability
Battery capacity: _ _ _ _ Ah (range 7 to 2000)
Boost upper limit Volt.
Set the upper limit voltage in boost mode
2.27 V/cell (default, range 2.20 to 2.40)
Float base Volt.
Set the float mode voltage
2.27 V/cell (default, range 2.20 to 2.29)
Battery Protect Volt.
Set the end of discharge voltage
1.65 V/cell (default, range 1.20 to 1.90)
8
9
7
8
10
Setting Parameter
Description
Boost Charge
Boost charges the batteries at the end of a recharge
Enable (default) Disable (use for VRLA batteries)
Shutdown Pre Alarm Time
Set the number of minutes before a predicted shutdown that an alarm is given.
The prediction is based on the battery capacity and load.
Time (1 to 99): _ _ (minutes)
Max charge current
Set to 10% of the battery Ah capacity rating in amperes.
_ _ A (E420 and E430, 1 to 15 A; E440, E460 and E480, 1 to 30 A in 1 A steps)
LCD display messages
Display messages appear on the bottom line of the LCD display.
Display
Meaning
CurState: Init
Initialisation
No-Out
No output
Bypass
UPS in bypass mode
Mains
Rectifier working
Battery
Battery invert
Testing
Battery test in progress
Starting
Starting
CurState: ECO
UPS running in ECO power saving mode
CurState: EPO
Emergency Power OFF mode
CurState: M-Byp
UPS in maintenance bypass mode
CurState: Fault
UPS fault
Battery Charging
Battery float charging
Battery Boost
Battery boost charging
Invter ON/ Invter OFF
Inverter working or not
Inver Master
Master of multi UPS system
SWMB ON/ SWMB OFF
Maintenance switch close or open
Maintenance
Fan
At normal room ambient temperature the fans will operate continuously for 20,000 to 40,000 hours.
Increased ambient temperatures will shorten this lifetime.
Periodically ensure that air is blowing out of the rear of the unit.
Battery
We recommend the use of sealed lead acid, maintenance free batteries. Battery life depends on the
ambient temperature and the number of discharge/charge cycles. Battery life is shortened with high
ambient temperature and deep discharges.
To maximise the life of your batteries, maintain them as follows:
Maintain the ambient temperature in the range 15 to 25°C
Avoid discharge currents of less than 10% of full load current.
Do not operate the UPS in battery mode continuously for more than the specified autonomy (hold-up
time).
Charge the battery for at least 12 hours every 3 months if it has not been used. If the ambient
temperature is higher than 25°C, charge the battery every 2 months.
Maintain external batteries at least once a year.
If the backup time has significantly reduced, or a battery fault is displayed on the LCD screen contact your
distributor to find out if the batteries need replacing.
WARNING
DON'
T SHORT CIRCUIT THE BATTERY AS IT CAN CAUSE A FIRE.
DON’T OPEN THE BATTERY AS THE ELECTROLYTE INSIDE IS HARMFUL TO SKIN AND
EYES.
Battery change
Caution: We strongly recommend you switch off the whole UPS when you need to change a
battery group.
Visual check
Ensure there is adequate ventilation to maintain the UPS at the correct temperature.
UPS status check
Check the following:
Ensure there are no faults or alarms indicated.
If the UPS is working in bypass mode, investigate the cause.
If the UPS is working in battery mode, make sure it is normal, if not, investigate.
Function check
Perform the following function checking every 6 months:
1. Press the INVERTER OFF button to ensure the buzzer, indicators and LCD are operating normally.
2. Press the INVERTER ON button. Check the indicators, LCD and UPS inverter, and ensure they are
working normally.
3. When the UPS is working in on-line mode, perform a battery test.
Troubleshooting
Before contacting your distributor, try to solve your problem using the information in the following table. If
you need to contact your distributor make sure you have the model number and serial number of your
UPS.
Black Start procedure
Use this procedure to start the UPS from the battery only when the mains supply is absent, or to check
the system as part of the commissioning process.
To start the UPS using the black start switch:
1. Unlock and open the front door.
2. Turn on the battery breaker. The battery will supply the auxiliary power board.
3. Press the Black Start button. After about 30 seconds the UPS will be ready to supply load current.
4. Turn on the output breaker.
Events
No
Display message
Description
1
Initializing
The DSP and MCU is initialising
2
Standby
3
Non-output
The UPS is not providing power to the output
4
On bypass
The inverter is off and the load is being supplied via the bypass switch
5
On line
The load is being supplied via the inverter
6
Discharging battery
The load is being supplied from the battery
7
EPO activated
The emergency power off switch has been activated
8
Automatic self-test
The pre-programmed battery test has started
9
Inverter is soft starting
10
System fault detected
11
Int. maintain bypass switch closed
The internal bypass breaker has been closed manually
12
Int. input switch opened
The internal input breaker has been opened manually
13
Int. input switch closed
The internal input breaker has been closed manually
14
Rectifier deactivated
The rectifier has been deactivated
15
Rectifier activated
The rectifier has been activated
16
Rectifier over current
Input voltage in the range 208 V to 305 V, UPS is de-rated
17
Battery charge deactivated
The charger has been deactivated
18
Positive battery boost charging
The positive batteries are in constant-voltage or constant-current
No
Display message
Description
boost charge mode
19
Positive battery float charging
The positive batteries are being float charged
20
Negative battery boost charging
The negative batteries are in constant-voltage or constant-current
boost charge mode
21
Negative battery float charging
The negative batteries are being float charged
22
Int. bypass switch closed
The internal bypass breaker has been closed manually
23
Int. bypass switch opened
The internal bypass breaker has been opened manually
24
Int. output switch closed
The internal output breaker has been closed manually
25
Int. output switch opened
The internal output breaker has been opened manually
26
Ext. bypass switch closed
The external bypass breaker (parallel system) has been closed
manually
27
Ext. bypass switch opened
The external bypass breaker (parallel system) has been opened
manually
28
Ext. output switch closed
The external output breaker (parallel system) has been closed
manually
29
Ext. output switch opened
The external output breaker (parallel system) has been opened
manually
30
Coming to internal transfer
Allow transfer to bypass or inverter with 3/4 cycle break. Use of this
command will drop the load
31
Coming to overload due to inverter
off
When the inverter off manually, the load will be exceeded the power
capacity
32
Coming to interval transfer due to
inverter off
When the inverter off manually, The load exceeded the power
capacity
33
Inverter invalid due to over load
The load exceeds the UPS output capability
34
Change master
Inverter master
35
Transfer times-out
Latched load transfer to bypass as a result of repeated transfers
within one current hour. Automatic reset is attempted in the next hour
36
UPS in shutdown due to overload
37
UPS in bypass due to overload
38
Parallel in bypass
39
LBS activated
40
Thunder protect
The lightning protector has been activated
41
ECO activated
The inverter is on but the load is being supplied via the bypass switch
The parallel system has switched to bypass
Alarm information
No
Display message
Description
1
Rectifier fault
Rectifier, inverter and charger shutdown
2
Rectifier over temperature
Charger and inverter shutdown
3
Inverter over temperature
Inverter shutdown
4
Auxiliary power 1 fault
Control power 1 has failed
5
Auxiliary power 2 fault
Control power 2 has failed
6
Fan fault
One or more fans has failed. Rectifier, inverter and charger shutdown
7
Fan power fault
One or more fan power supplies is not working. The UPS will continue
No
Display message
Description
to work but the FPSU must be replaced.
8
DC bus over voltage
Rectifier, inverter and battery converter shutdown
9
DC bus below voltage
Rectifier, inverter and battery converter shutdown
10
DC bus unbalance
The difference between the positive and negative DC buses exceeds
30 V
11
Mains site wiring fault
Wrong input phase rotation
12
Soft start fault
Rectifier can’t start because the DC bus voltage is too low
13
Input neutral line missing
UPS switched to battery mode
14
Battery reverse
Battery polarity incorrect
15
No battery
Battery is disconnected
16
Positive battery charger fault
Charger shutdown
17
Negative battery charger fault
Charger shutdown
18
Battery under voltage
Charger is deactivated
19
Battery over voltage
Charger is deactivated
20
Battery under voltage pre-warning
The UPS is in battery mode and the battery voltage is low.
Note: Runtime is limited.
21
Mains freq. abnormal
Rectifier shutdown
22
Mains volt. abnormal
Rectifier shutdown
23
Inverter fault
The inverter has shutdown because its output voltage is out of range
(rated voltage +12.5% and –25%), and the UPS has transferred to
bypass. Power off the UPS to clear this fault.
24
Inverter IGBT bridge direct conduct
protection
Inverter shutdown
25
Inverter thyristor short fault
There is a short circuit inverter SCR
26
Inverter thyristor broken fault
There is an open circuit inverter SCR
27
Bypass thyristor short fault
There is a short circuit bypass SCR
28
Bypass thyristor broken fault
There is an open circuit bypass SCR
29
CAN comm. fault
CAN communication fault
30
Parallel system load sharing fault
Load sharing unbalance has exceeded 30%
31
Bypass site wiring fault
Wrong bypass phase rotation
32
System not synchronized to bypass
System cannot synchronize to bypass. Mode may not be available
33
Bypass unable to trace
34
Bypass not available
35
IGBT over current
36
Fuse blown
One or more inverter fuses has blown
37
Parallel cable connection error
A parallel cable is not correctly connected in a parallel system
38
Parallel relay fault
Occurs when a parallel circuit relay cannot be turned on correctly. The
UPS shuts down. Power off the UPS to clear this fault
39
LBS not sync.
Two paralleled system are not synchronised
40
Initialisation fault
41
Inverter on invalid
The frequency or voltage is out of range for bypass
The inverter on button has been activated
No
Display message
Description
42
Overload
The load exceeds the UPS capacity
43
Parallel overload
44
DC component over limitation
The DC component exceeds the specified value
45
Bypass over current
An over current alarm is given
46
Ext. fire alarm
External fire detector has been activated
47
Ext. smog alarm
External smog detector has been activated
Frequently asked questions
No
Problem
Causes
Solution
1
No LCD display
Display cable not plugged in
correctly
Unplug the cable from the rear of the
LCD panel and then plug it in again
2
Blue screen LCD
LCD interference
3
Red LED on module
Module not plugged in correctly
Pull out the module and then push
back in
4
UPS won’t start
Input breaker is open
Close the input breaker
AC input is out of specification
Check that the voltage and
frequency are within limits
Output breaker is open
Close the output breaker
UPS disabled at the LCD control
panel
Enable the UPS using the LCD
control panel
5
No output from UPS
6
Inverter not working
Inverter not started
Press Inverter ON for 2 seconds
7
UPS works on bypass only
Mains breaker is open
Close the mains breaker
UPS working in ECO mode
Set the UPS to work in on-line mode
Switch Bypass times out (If the UPS
has repeatedly switched to bypass
due to over current/temp more than
the ‘bypass switch times’)
Increase the time or restart the UPS
Battery breaker is open
Close the battery breaker
A battery fuse is open
Change the fuse
Battery low
Recharge the battery
8
Can’t ‘black start’ the UPS
Appendix 1 Signals options
RS232 serial port
E400 series units are fitted with a standard RS232 serial port, which can be used to:
Monitor the UPS power status
Monitor the UPS alarm information
Monitor the UPS running parameters
Perform a battery test
To enable RS232 control:
1. Connect the UPS to your computer using the supplied RS232 cable.
2. Load the supplied software onto your computer.
Connections between computer and UPS RS232 ports
Computer
UPS
6 7 8 9
RDX 2
TX 3
1 2 3 4 5
TDX 3
RX 2
GND 5
GND 5
Figure 10 RS232 serial port pin-outs
looking at the socket on the UPS
RS232 communication data format
Parameter
Value
Baud rate
2400 bps
Byte length
8bit
End bit
1bit
Parity check
Null
Contact closure for external breakers
E400 series units are fitted with a Wieland Electric socket (plug part number 25.340.3453.0) for contact
closure signals to drive an external main breaker and an external maintenance breaker. The connector is
located behind a protective cover just below the black start switch (see Figure 3 on page 13). The signal
connections are as follows:
Pin number
Function
1
+5 V
2
Output to main breaker
3
+5 V
4
Output to maintenance breaker
5V
MA 5 V
IN
EX
T
Figure 11 Contact closure socket
SNMP card with environmental monitor
If your unit is fitted with the optional SNMP card (located in the Intelligent Slot on the front panel), connect
it to your computer with a network cable. You can also connect a modem and environment controls as
shown in Figure 12.
For instructions on how to operate the SNMP card, refer to the documentation on the supplied CD.
Figure 12 A topology using network, modem and environmental functions
The SNMP card supports the MEGAtec protocol, allowing you to remotely monitor and manage your UPS
system.
NetAgent II-3 Ports supports the Modem Dial-in (PPP) function to enable remote control via the Internet
when your network is unavailable.
In addition to the features of a standard NetAgent Mini, NetAgent II has the option to add NetFeelerLite to
detect temperature, humidity, smoke and security sensors, thus making NetAgent II a versatile
management tool. NetAgent II also supports multiple languages and is setup for web-based autodetection of language.
Relay card (monitoring and control)
E400 series units are fitted with a relay card (located in the Intelligent Slot, see Figure 3 on page 13) you
have access to monitoring and control functionality via a set of dry contacts and a single opto-coupled
input.
Connections:
Pin no.
Description
Contact status
1
Mains out of limits
closed (on)
2
Battery low
open (off)
3
Battery low
closed (on)
4
Bypass output
closed (on)
5
Internal failure
closed (on)
Additional fault information
• Rectifier fault
• inverter fault and shutdown
• over temperature and shutdown
• short circuit and shutdown
6
Inverter output
closed (on)
7
System alarm
closed (on)
• Rectifier fault
• inverter fault and shutdown
• over temperature and shutdown
• short circuit and shutdown
8
Relay common GND
9
Remote shutdown
+V (see opto specification below)
10
Remote shutdown
0 V (not the same as relay common)
+5 V to +12 Vd.c. input
Relay contact specifications:
Parameter
Value
Maximum switched voltage
277 Va.c. or 30 Vd.c.
Typical switched voltage
5 to 12 Vd.c.
Maximum switched current
NO: 10 A
NC: 3 A
Maximum switched power
NO: 1400 VA, 150 W
NC: 850 VA, 90 W
Pin 1
Pin 10
Opto-coupler input specifications (used for remote shutdown):
Parameter
Value
Reverse voltage (VR)
5 Vd.c.
Forward input voltage
30 Vd.c. max., 5 to 12 Vd.c. typical
Forward current
25 mA max., 16 mA typical
Pulse forward current (IFP)
1 A (100 s pulse, 100 pps)
Figure 13 Relay card connector
(viewed from connector side)
To connect to the relay card:
1. Unlock and open the front door.
2. On the front panel, unscrew the card and slide it out completely or sufficiently to access the terminal
block.
3. Using the information in the tables above, wire your signal cables to the terminal block (Figure 13).
4. Refit the card and secure it in place with the cover plate.
Dry contact relay signals
To wire to the sockets you will need:
Wieland Electric plugs, part number 25.340.0753.0
E
E
O G RG
_C _S
12V FIR SM SU NC BP BP
12V GE BA EP GN NC BP
T_T O
_O
N
D
Figure 14 Dry contact relay sockets
Connections:
Signal name
Description
12V
Provides a +12 V 100 mA isolated supply on each connector row
FIRE
Fire alarm input signal
SMOG
Smog alarm input signal
SURGE
Surge alarm output signal
NC
No connection
BP_C
Anti-backfeed relay common
BP_S
Anti-backfeed relay normally open
To prevent the input being energised by backfeeding in the event of an internal failure,
connect this signal to an external circuit breaker trip
GEN
Generator signal input
BAT_T
Over temperature switch on battery. Feed +12 V via the switch when the battery
temperature is exceeded
EPO
Emergency power off connect to +12V for complete power off (pulse contact)
GND
Common return (0 V) for the +12 V supply and relays. This is not connected to the
chassis
BP_O
Anti-backfeed relay normally closed
To prevent the input being energised by backfeeding in the event of an internal failure,
connect this signal to an external circuit breaker trip
Battery temperature sensor
A battery temperature sensor is available as an option for E400 series units. When connected the sensor
monitors and displays battery cabinet temperature, and it controls the UPS to compensate the battery
charging voltage. The sensor is connected to the MODBUS connector on the UPS (see Figure 3 on
page 13).
For further details ask you distributor for the sensor user manual.
Appendix 2 Parallel operation
The following signals are available on each UPS for parallel operation:
Parallel port connectors. These must be connected as described in Wiring units in parallel on
page 17.
LBS (Load Bus Synchronisation) signals. These may be used to synchronise two paralleled systems
as described below.
Remote emergency power off (EPO) as described below.
LBS (Load Bus Synchronisation)
It is possible to synchronise the outputs of two separate paralleled systems, where each system can
consist of up to 4 paralleled units. It is only necessary to connect UPS number 1 of each system.
To do this, connect the LBS connector of system A to the LBS connector of system B (Figure 15). The
LBS connectors are RJ11 sockets on the front panel.
LBS cable
LBS
UPS1
System A
UPS2
UPS3
LBS
UPS4
UPS1
System B
UPS2
UPS3
UPS4
Figure 15 Synchronisation of two paralleled systems
Remote emergency power off (EPO)
In a parallel system the EPO switch on the front panel of any unit will turn off the whole system. It is also
possible to add a remote EPO switch in addition to the front panel switch.
Wire the switch as shown in Figure 16. Only one 12V connection is required and it can be made to any
unit in the system.
Switch type: normally open
Remote EPO switch
EPO
EPO
UPS1
12V
UPS2
EPO
EPO
UPS3
UPS4
Figure 16 An N+1 parallel system with remote EPO switch
Appendix 3 Specifications
Electrical
Model
Capacity
E420
E430
E440
E460
E480
20 kVA
30 kVA
40 kVA
60 kVA
80 kVA
40 A
63 A
80 A
125 A
160 A
Input
Input current (maximum)
Power factor
0.99
Input type
3 phase 4 wire (L1, L2, L3, N and E)
Rated voltage
380 / 400 / 415 V a.c.
Voltage range
Po 69%: 208 ± 5 V a.c. to 478 ± 5 V a.c.
Po> 69%: 304 ± 5 V a.c. to 478 ± 5 V a.c.
Frequency range
40± 0.5 Hz to 70± 0.5 Hz
THDI
Input THDV: 1%, linear load: 3%
Input THDV: 1%, non-linear load: 7%
Battery
Number of 12 V batteries
32, 34, 36, 38 or 40 in series
Battery type
VRLA
Discharge current (A) @ 320 V d.c.
E420
54
Charge current(A)
E430
81
E440
106
E460
160
15
E480
213
30
Output
Output current (A) @ 380 V
(full load)
@ 400 V
@ 415 V
24
23
22
36
35
33
48
46
44
Output type
3 phase 4 wire (L1, L2, L3, N and E)
Power factor
0.8
Waveform
Sine wave
Crest factor
3:1
Frequency
50Hz/60Hz± 0.5 Hz (battery mode)
Output precision
1.0%
Voltage distortion (THD)
<2% with 100% linear load
<4.5% with 100% non-linear load
DC component
Voltage precision
500 mV d.c.
Output balanceable: ± 1.0%
Output non-balanceable: ± 3.0%
72
70
66
96
92
88
Output
Overload
110%, 1 h
125%, 10min
150%, 1min
bypass mode: 125% to 170%, 10 min
Bypass and ECO voltage range
Adjustable via the LCD panel using ‘bypass volt upper
limit’ and ‘bypass volt lower limit’
Efficiency in line mode
Efficiency in battery mode
Efficiency in ECO mode
Dynamic respond
90%
20/30 kVA, 93%: 40/60/80 kVA, 94%
97%
5.0%, 20ms
Switch time
Between normal mode and
battery mode
0ms
Between inverter and bypass
0ms
unlock: <15ms (50Hz), <13.33ms (60Hz)
Parallel operation
Parallel equal current
1+1 8%
N+1 10%
Safety and EMC
Safety
3C/EN60950/EN50091-1
Isolation resistance
>2M
Isolation voltage
2,820Vd.c., <3.5mA1min
EMC
Conduction: IEC 62040-2
(500Vd.c.)
Radiation: IEC 62040-2 C3
Harmonic: IEC 62040-2
EMS
EN61000-4-2.3.4.5.6.8.11 Level III
Surge
IEC60664-1 level IV
Reliability
MTBF
Inverter: 50,000 hrs
Single module: 250,000 hrs
1+1 expandable modules: 400,000 hrs
MTTR
<30min
Mechanical
E420, E430 and E440
E460 and E480
Height (mm)
1200
1800
Width (mm)
600
600
Depth (mm)
730
730
Net weight (gross weight)
E420:
E430:
E440:
E460:
E480:
Audible noise
<56 dB (1m)
Colour
Black
Display
LCD and LED
Ingress protection
IP20
Vibration
ISTA (International Safe Transmission Association)
1B
Transport
ISTA 1B
186 kg (226 kg)
192 kg (232 kg)
201 kg (248 kg)
297 kg (354 kg)
312 kg (369 kg)
Appendix 4 Optional equipment
The following items are available as options for the UPS:
SNMP card
Battery temperature compensation (special order)
Paralleling cables
RS485 cable (serial data cable to connect between paralleled units)
LBS cable
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