Ashley-Edison SVR Series User manual

SVR SERIES – Operator & User Manual
AE/SVR-1P/6/2020
https://www.AshleyEdisonUK.com
Page
1
ASHLEY-EDISON (UK)
Tel : [phone]
Web : https://www.AshleyEdisonUK.com
Email
Sales : [e-mail]
General: [e-mail]
Support: [e-mail]

This manual contains information
concerning the safe and proper
installation and operating procedures
applicable to the SVR range of Single-
Phase Servo Electronic AC Voltage
Stabilisers / Regulators.

The manual should be read in full before
attempting to use or operate the
equipment.

If any problems are encountered with the
procedures contained within this manual
then seek assistance from Ashley-Edison
(UK) or the distributor from whom you
purchased the equipment.

Whilst every precaution has been taken to
ensure the accuracy and completeness of
this manual, Ashley-Edison (UK) assumes
no responsibility and disclaims all
liabilities for damages resulting from use
of this information or any error or
omission.
SVRSERIES
MODELS – 6 to 50 kVA
SINGLE PHASE SERVO ELECTRONIC
AC AUTOMATIC VOLTAGE STABILISERS
OPERATOR MANUAL
WITH SECTIONS ON
INSTALLATION, MAINTENANCE & FRONT-LINE FAULT FINDING

SVR SERIES – Operator & User Manual
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Table of Contents Page
1. Introduction ……………………………………………………………………………….
….
5-7
1.1 Overview……………………………………………………………………..…. 5
1.2 Design Topology
……………………………………………………………….
5
1.3 Bypass Switch Arrangement .
……………………………………………
7
2. Safety Note …………………………………………………………………………………... 8-9
2.1 Introduction ……………………………………………………
………………..
8
2.2 General Installation & Usage …
………………………………………….
8
2.3 Symbol Warning Information
……………………………………………
9
3. Transport, Delivery, Storage & Unpacking …………………………………… 10-11
3.1 Transport
……………………………………………………..………………….
10
3.2 Delivery
……………………………………………………………………………
10
3.3
Storage ……………………………………………………………………………
10
3.4
Unpacking …………………………………………………………………………
11
4. Positioning, Ventilation & Cooling …………………………………….…………… 12-13
4.1 Positioning …
……………………………………………………………………
12
4.2 Ventilation & Cooling …………………
……………………………………..
12
5. Electrical Installation & Cabling ………………………………….…………………. 14-15
5.1 Cabling …………………………………………………………………………… 14
5.2 Protection ……………………………………………………
……………………
14
5.3 System Grounding …………………………………………………
…………
14
5.4
Voltage & Load Checks ……………………………………………………..
13
5.5
Cable Connections ……………………………………………………………
15
6. Commissioning ………………………..……………………….………………………….. 16
6.1 Pre-Commissioning Checks ………………………………………
………
16
6.2 Initial Power Up……..……………………….…………………………..…… 16

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7. Display Panel …………………………………..………………….………………………… 17-21
7.1 Introduction ……………………………………….………………………….. 17
7.2 Display Features …
……………………………………………………………
17
7.3 Parameter Settings…………..
………………………………………………
18
7.4 Parameter Pushbutton Operation..
……………………………………
18
7.5
1. Set Output Voltage………………………………………………………..
19
7.6 1. Set Output Voltage Regulation Accuracy…..………………… 19
7.7 2. Set Under Voltage Value ……..…………………….………………... 20
7.8 3. Set Over Voltage Value …………………………….………………… 20
7.9 4. Set Method of Output Voltage Regulation …………..……… 20
7.10 5. Set Current Overload Setting ………………………………….
…….
21
7.11 6. Set Voltage Display ………………………………………………….
……
21
7.12 7. Set Speed of Correction …………………………………………….
….
21
8. Common Fault Conditions ……………………………………….……………………. 22
8.1 Overload …………………………………………………………………….
…….
22
8.2
Under / Over Voltage ……………………………………………………….
22
9. Switched Bypass Operation …………………………………….………..
……………
23
9.1 Bypass Operation………………………….
………………………………….
23
9.2 Return from Bypass…………………………………….
…………………….
23
10. Basic Maintenance & Servicing ……………………………………..……………… 24
10.1 Service Intervals ……………………………………………………………… 24
10.2 Skill Sets ………………………………………………………………………… 24
10.3
Service Requirements ………………………………………………………
24
11. Front Line Fault Finding ………………………………………………….…………….. 25
11.1
Operational Errors ……………………………………………………………
25
11.2 Fault Identification ………………
……………………………………………
25
11.3 Further Assi
stance ……………………………………………………………
25

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Appendices ……………………………………………………………………………………….……… 26-38
1 Technical Specification …………………………………………………………….. 26
2 Recommended Spares ……………………………………………….……………. 29
3 Input Voltage Calibration …………………………………………….…………… 30
4 Output Voltage Calibration …………………………….………………………… 31
5 Circuit Diagram ……………………………….…………….…..……………………. 32
6 System Switching Sequence ………………….…………………………………. 33
7 Communication Interface ……………………………………………..…………. 34
8 Product Warranty …………………………………………………………..………… 36

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1. Introduction
1.1 Overview
The Ashley-Edison (UK) SVR range of Voltage Stabilisers are equipped with
a number of design features to ensure trouble free service.
Suitable for supporting most types of electrical and electronic equipment,
the feature rich SVR Electronic Servol Voltage Stabiliser range of models
continuously monitor the incoming supply and provide a controlled voltage
output for any input voltage variations within the operating specification of
the model in question.
Each model is fitted with protection equipment to ensure that the load is
continually protected against harmful mains born high energy spikes and
surges.
1.2 Design Topology
1.2.1 Based on the extremely well proven Buck / Boost design topology,
the SVR range of Voltage Stabilisers utilise a motorised Variable
Transformer to alter the primary voltage of the Buck / Boost
Transformer.
1.2.2 The underlying Buck/Boost topology ensures a cost-effective
solution to providing a stable mains voltage supply as the Motorised
Variable Transformer is not required to handle the full load current
of the SVR unit and as a result SVR Voltage Stabilisers are able to
deliver impressive overload capacities and considerably enhanced
reliability.
1.2.3 The utilisation of the latest in microprocessor control and the
inclusion on all models of protection against excessive load and
supply variations ensures peace of mind to the user.

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1.2.4 Diagram showing the voltage control principle for one phase.
1.2.5 Principle of Operation
The control circuit consists of a buck/boost transformer with its
secondary winding in series with the load and its primary winding
connected to the variable output of a motorised Variable
Transformer. In addition, there are guiding relay contacts which
reverse the polarity of the Variable Transformer output to either
‘Buck’ (reduce) or ‘Boost’ (increase) the supply voltage in the
secondary of the Buck / Boost transformer.
The servo amplifier will compare the output voltage of the Voltage
Stabiliser with the pre-set output and drive the motor of the
motorised Variable Transformer in the direction to ensure that the
Voltage Stabiliser output voltage remains constantly regulated. The
polarity of the supply to the primary of the Buck / Boost transformer
will be switched to either increase or decrease the voltage from the
utility mains supply to provide a regulated pre-set output voltage.

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1.3 Bypass Switch Arrangement
Please Note:
While the Stabiliser is fitted with an input switch, it is highly recommended
that the installer/project consultant ensures that the input supply to the
Voltage Stabiliser has additional external protection in the form of fuses or
a circuit breaker.

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2. Safety Note
F
Safety Instructions
Read and follow all Safety Instructions
Please save these instructions for future reference
2.1 Introduction
These instructions are addressed to the Installer and End User / Operator of
the SVR Series of AC Voltage Stabiliser / Regulator. We strongly suggest you
keep this manual next to the Stabiliser for future reference.
2.2 General Installation & Usage
2.2.1 Do not use the Stabiliser for other than the intended use.
2.2.2 Do not install stabiliser in a back-feed circuit to the grid, input
voltage supply cannot be connected to the output of stabiliser.
2.2.3 If on delivery there is evidence of visible damage, do not attempt to
install or start the Stabiliser. Advise the transport delivery company
and inform Ashley-Edison (UK), or the resale partner from whom
you purchased the equipment.
2.2.4 The Stabiliser can contain potentially dangerous voltages – up to
600V AC. Use extreme caution when opening the covers and do not
leave the unit unattended with the doors open or covers off.
2.2.5 Hazardous voltages can be present at the unit’s output any time AC
input power is applied. To avoid possible personal injury, or
equipment damage, and to make certain there is no output voltage,
turn the unit off and disconnect the AC Input.
2.2.6 To reduce the risk of fire, or electrical shock, install the unit in an
indoor area free from conductive contaminants.
2.2.7 Unless the Stabiliser is specified as IP54 or NEMA 3 Do not use
outdoors.

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2.2.8 Do not place the unit near water or liquids, gas and combustible
materials or in an excessively humid environment where
condensation is very likely to occur.
2.2.9 To reduce the risk of overheating, do not block the unit’s ventilation
panels and try to avoid positioning the unit in direct strong sunlight
or close to other heat sources.
2.2.10 Do not allow liquids or foreign objects to enter the unit.
2.2.11 The installation and use of this product must comply with all
relevant current electrical installations that are in force in the
territory of installation.
2.2.12 Only qualified electrician shall install the equipment. The electrician
shall install the AC input according to the instructions contained in
this manual. Standard safety practices should be followed at all
times.
2.2.13 The unit must be grounded or earthed at all times when in use.
F2.3 Symbol Warning Information
The following symbols are used throughout this manual -
Warning Information
This symbol alerts you to important information
Electrical
Hazard
This symbol indicates an electrical hazard may be present.

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3. Transport, Delivery, Storage & Unpacking
3.1 Transport
3.1.1 The Stabiliser should only be transported in an upright position.
3.1.2 The Stabiliser should be positioned in its operation location while
enclosed in its original packaging taking due note of its centre of
gravity whilst manoeuvring into position.
3.1.3 Do not stack other packages on top of the unit.
3.1.4 If the Voltage Stabiliser has to be lifted use spreading bars and belts
or a forklift utilising the lifting points provided.
3.1.5 Before using any form of lifting equipment be it crane, forklift or
elevator ensure that it has a lifting capacity suitable for the
application.
3.2 Delivery
3.2.1 When delivered carefully check the integrity of the packaging for any
physical damage or signs of mishandling that may have occurred
during transportation.
3.2.2 On completion of unpacking check again for any signs of any
physical damage to the Voltage Stabiliser.
3.2.3 Should any damage be observed immediately notify the shipping
agent/transport company involved with the shipping and inform
Ashley Edison, or the resale partner from whom you purchased the
equipment A detailed report including photographs of any damage
observed will be required to support any indemnity/insurance
claim.
3.3 Storage
3.3.1 The units are carefully packed for shipment to ensure that when they
are installed they are in perfect condition.
3.3.2 Never leave a Stabiliser (whether packed or not) outside with
exposure to the elements.

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3.3.3 Do not store on top of other packages or allow other packages to be
stored on top of the Stabiliser.
3.3.4 Should it be necessary to place the Voltage Stabiliser in storage it
should be stored in its original shipping packaging in a clean, dry,
dust free environment away from any chemical substances.
3.4 Unpacking
3.4.1 SVR Voltage Stabilisers are despatched from the factory in purpose
designed ruggedized carton boxes or wooden crates.
3.4.2 Once on site it is strongly recommended that the unit should be
moved to its final location whist still in its shipping packaging.
3.4.3 Open the shipping container carefully taking special care when
utilising opening tools to ensure that the unit is not inadvertently
damaged.
3.4.4 After removal of the external packaging and prior to
commencement of installation works remove any vapour barriers
and internal support fixings.
3.4.5 If any damage, as a result of shipping is observed immediately notify
the shipping agent /shipping company and inform Ashley Edison, or
the resale partner from whom the unit was purchased.
3.4.6 Do not install the Voltage Stabiliser if there is any sign of damage.
WARNING
Do Not Leave The Automatic Voltage Stabiliser Door/s
Opened For Long Periods Of Time Or In The Absence Of
Authorised Personnel.
Only Qualified Personnel Are Allowed To Service This Equipment.

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4. Positioning, Ventilation & Cooling
4.1 Positioning
4.1.1 The unit should be installed indoors in a clean, dust-free location,
which has adequate ventilation or air-conditioning Do not block the
stabiliser’s air vents.
4.1.2 Do not operate the Voltage Stabiliser near gas, electric or other heat
sources or in direct sunlight.
4.1.3 Do not site the Voltage Stabiliser next to magnetic storage media,
monitor screens (VDU’s) or any other equipment sensitive to
magnetic fields.
4.1.4 Move the Voltage Stabiliser in an upright position, in its original
packaging, to its final destination.
4.1.5 To lift the cabinets, use a forklift or lifting belts with spreader bars.
4.1.6 Check for sufficient floor and elevator loading capacity.
4.1.7 Check the integrity of the Voltage Stabiliser equipment carefully.
4.2 Ventilation & Cooling
4.2.1 SVR Stabilisers are forced air-cooled and the airflow paths should
not be obstructed.
4.2.2 The Voltage Stabiliser can be installed in sites with ambient
temperatures from 0 to 45 degrees C up to 1000 m, relative humidity
of up to 90% (non-condensing). The Stabiliser is designed to operate
within an ambient temperature range of -15 to 45°C - up to an
altitude of 1000 metres. When installed in greater ambient
temperatures and / or altitudes, the maximum rating of the machine
should be de-rated by 2% for each additional °C, up to a max of 60°C,
and 2.5% for each additional 500 metres.
4.2.3 The temperature of the air entering the Voltage Stabiliser cabinet
must not exceed the temperature shown above.
4.2.4 To facilitate ease of maintenance and to ensure sufficient airflow
movement, it is recommended the units are positioned: -

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Enclosures with Castors
300mm 300mm
Front View Top View
Rear
Front
Side Opening Door
150mm 150mm600mm 600mm
Non Castor Enclosures
800mm
Front View Top View
500mm 500mm
Rear
Front
1000mm
500mm 500mm
4.2.5 When operational, the Stabiliser itself will generate a certain amount
of heat, which will be blown out through the vents on the cubicle.
The User should ensure that the room where the Stabiliser is located
has sufficient adequate cooling / ventilation facilities to remove the
heat. It is imperative that the air should be able to freely circulate
through the air inlets and outlets on the Stabiliser.
4.2.6 DO NOT put anything on top of the cabinet or restrict the flow of air
to and from the system.

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5. Electrical Installation & Cabling
5.0 Electrical Installation of the equipment should only be carried out by a
qualified electrician following best safety practices at all times.
5.1 Cabling
5.1.1 The cabling of the Stabiliser has to be sized according to the actual
rating of the Voltage Stabiliser. The current capacity of the supply
cable should be chosen to suit the specified kVA output of the
Stabiliser at its minimum specified input voltage
5.1.2 The cable size and construction should comply with local regulations
for installation.
5.1.3 When cutting holes for cable entry/glanding care must be taken that
no swarf from the cutting enters the enclosure and that any swarf is
removed.
5.1.4 Cover / Block-off any unused holes.
5.2 Protection
5.2.1 While all SVR Voltage Stabilisers are normally fitted with an Input
Switch as standard it is recommended that the installer should fit
suitable circuit protection.
5.2.2 Care must be taken to ensure that the supply fuses/circuit breaker is
correctly sized to provide tripping discrimination between the circuit
protection devices in the event of a fault.
5.3 System Grounding
5.3.1 The safety of any Voltage Stabiliser depends upon proper grounding.
Grounding is primarily for safety. Correct implementation of
grounding also enhances equipment performance.
5.4 Voltage & Load Checks
5.4.1 Before connecting the unit it is essential that the utility mains voltage
is verified and that the Voltage Stabiliser’s selected output voltage
range is within the specified requirements.

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5.4.2 Check that the rating of the load does not exceed the rating of the
Voltage Stabiliser as shown on the Stabiliser’s rating plate. The load
should be measured using a true RMS reading meter.
5.4.4 In applications where the supply cannot be switched off for any
length of time it is recommended that an external wrap-around
bypass switch is installed to ensure continued supply to the load
while the Voltage Stabiliser is out of service.
5.5 Cable Connections
5.5.1 Connect the mains input supply to terminals marked INPUT (L and
N). Ensure that the equipment is connected to Earth.
5.5.2 Connect the load to terminals marked OUTPUT (L, N)
Connect the wiring as follows:

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6. Commissioning
6.1 Pre-Commissioning Checks
6.1.1 Before you switch ON the mains, inspect the Voltage Stabiliser
visually to ensure that dust has not accumulated during installation.
As necessary clean the Stabiliser thoroughly with compressed air or
with a soft brush.
6.1.2 Check the Ground connection. Ensure it is tight.
6.1.3 Check all wiring connections to ensure they have not been loosened
in transit. Tighten all connections as necessary.
6.1.4 Before applying power, depending upon the kVA rating of the Voltage
Stabiliser it will be necessary to ensure that the Input Switch is open,
the Bypass Switch is in the regulated output position (Off).
6.2 Initial Power Up
The initial power up procedure is as follows.
6.2.1 Ensure that no load is connected.
6.2.2 Switch the Input Switch on. The Stabiliser will cycle through its start-
up sequence to provide a regulated output.
6.2.3 The load can now be connected to the Stabiliser.
6.2.4 As the Voltage Stabiliser has been pre-commissioned in the factory
the display readings should indicate the correct output phase
voltages and currents, if this is not the case please refer to Appendix
1 & 2 for calibration instructions.
6.2.5 Apply the load gradually ensuring that the display on the front panel
indicates the correct output voltage and that the load current
increases as expected.
It is recommended that on initial commissioning of the system you duly
record the commissioning date and schedule annual maintenance
accordingly.

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7. Display Panel
7.1 Introduction
7.1.1 With the presence of an incoming mains supply the Display Panel
will light up.
7.1.2 The “Input” Voltage measurement will be displayed. The Display
Panel on front of the Voltage Automatic Voltage Stabiliser is shown
below:
7.2 Display Features
oReal-time display of Voltage & Current.
oSet output Voltage and accuracy.
oSet over voltage, under voltage and Current overload.
oSet operational parameters.
oIndication of overload, over voltage, under voltage & phase failure.

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7.3 Parameter Settings
The pushbuttons on the left-hand side from the top are.
Menu.
Set increase
Set decrease
Enter / Bypass
NB: Switch On in Safe Mode to Make Parameter Setting Adjustments
7.3.1 If one is going to be making adjustments no load should be
connected to the Voltage Stabiliser.
7.3.2 To switch ON the Automatic Voltage Stabiliser switch the Input Switch
to the “ON” position, the Voltage Stabiliser will now go through its
start-up sequence.
7.4 Parameter Pushbutton Operation
7.4.1 Operation of the Menu pushbutton will display the parameter
number that is to be adjusted in the Output Current window while
the parameter value will be displayed in the Output Voltage window.
Pressing again will index the display to the next parameter.
NB: Parameter settings are normally set at the factory prior to dispatch.
For most users access to changing the parameters will not be neccessary.
7.4.2 Set increase & set decrease will alter the value of the parameter
setting dependent upon which pushbutton has been operated.

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7.4.3 The Enter / Bypass pushbutton will store the adjusted parameter in
the setting mode and switch the Stabiliser output to bypass operation
during normal operation. Depending upon software settings during
manufacture the bypass operation will either latch or transfer back
to regulated voltage output after a short delay.
7.5 Parameter 1: Set Output Voltage
7.5.1 ‘1’ will be displayed in the Output Current window and the L-L voltage
for (L1-L2) phase will be displayed in the Output Voltage window, this
voltage should be set as the nominal operating voltage of the
machine as it will determine the ± operating window of the Stabiliser.
Therefore, if 230V is set the Stabiliser will provide a regulated output
of 230V L-L for a 230V ±15% voltage supply on the input (assuming
that the Stabiliser is a ±15% variant).
7.5.2 The nominal voltage setting can be increased or decreased by means
of the ‘Set increase / set decrease’ pushbuttons. When the desired
voltage has been set the Enter / Bypass pushbutton should be
operated to store the parameter and the menu pushbutton operated
to index to the next parameter to be adjusted.
7.6 Parameter 2: Set Output Voltage Regulation Accuracy
7.6.1 ‘2’ will be displayed in the Output Current window on the display
while the parameter value will be displayed in the Output Voltage
window. Operation of the increase / decrease pushbutton will alter
its value while operation of the Enter / Bypass pushbutton will store
the new value.
7.6.2 Display settings -
‘1.0’ = ±1% Output Voltage Accuracy
‘3.0’ = ±3% Output Voltage Accuracy
‘5.0’ = ±5% Output Voltage Accuracy
7.6.3 After storing the new parameter, operation of the Menu pushbutton
will index to display to the next parameter.

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7.7 Parameter 3: Under Voltage Value
7.7.1 ‘3’ will be displayed in the Output Current window on the display
while the parameter value will be displayed in the Output Voltage
window. Operation of the increase / decrease pushbutton will alter
its value while operation of the Enter / Bypass pushbutton will store
the new value.
7.7.2 Typically for a Voltage Stabiliser with a ±15% input voltage operating
window the value of the nominal input voltage less 15% needs to be
set, therefore for a 240V Voltage stabiliser the value of ‘204’ needs
to be set as the under voltage setting on the display.
7.7.3 Once the value is confirmed and stored by means of operation of
the Enter / Bypass pushbutton the Menu pushbutton should be
operated to index the display to the next parameter.
7.8 Parameter 4: Over Voltage Value
7.8.1 ‘4’ will be displayed in the Output Current window on the display
while the parameter value will be displayed in the Output Voltage
window. Operation of the increase / decrease pushbutton will alter
its value while operation of the Enter / Bypass pushbutton will store
the new value.
7.8.2 Typically for a Voltage Stabiliser with a ±15% input voltage operating
window the value of the nominal input voltage plus 15% needs to be
set therefore for a 240V Voltage stabiliser the value of ‘276’ needs to
be set as the over voltage setting on the display.
7.8.3 Once the value is confirmed and stored by means of operation of
the Enter / Bypass pushbutton the Menu pushbutton should be
operated to index the display to the next parameter.
7.9 Parameter 5: Method of Output Voltage Regulation
7.9.1 ‘5’ will be displayed in the Output Current window on the display
while the parameter value will be displayed in the Output Voltage
window. Operation of the increase / decrease pushbutton will alter
its value while operation of the Enter / Bypass pushbutton will store
the new value.
7.9.2 This setting is not applicable for a single Phase SVR Voltage
Stabiliser.