Ampcontrol ISUPS 2 User manual

Revision: 2, December 2017
Designed and manufactured in Australia by Ampcontrol Pty Ltd
INTRINSICALLYSAFEUNINTERRUPTIBLE
POWERSUPPLY(ISUPS2)300Wh
UserManual

ISUPS2B004 Rev 1 Page 2 of 70
Ampcontrol Pty Ltd –ABN 28 000 915 542
ISUPS 300Wh V2 USER MANUAL
ISUPS2B004 R2 –DEC/17
WARNING!
The warning symbol highlights a potential risk of injury or death.
Please share these warnings with other operators.
CAUTION!
The caution symbol highlights a potential risk of damage to
equipment.
Please share these cautions with other operators.
NOTE
The note symbol highlights key information.
Please share these notes with other operators.
ENVIRO
The enviro (environmental) symbol highlights areas which may have an
impact on the surrounding fauna and/or flora.

ISUPS2B004 Rev 1 Page 3 of 70
Ampcontrol Pty Ltd –ABN 28 000 915 542
ISUPS 300Wh V2 USER MANUAL
ISUPS2B004 R2 –DEC/17
Copyright Notice
The Ampcontrol Intrinsically Safe Uninterruptable Power Supply (ISUPS 2) described in this document is
the property of AMPCONTROL PTY LTD. It is furnished under a license agreement and is to be used
only in accordance with the terms of the agreement.
No part of the hardware or documentation may be reproduced, transmitted, transcribed, stored in a
retrieval system, or translated into any language or computer language, in any form or by any means,
without prior written permission of AMPCONTROL PTY LTD.
Disclaimer
While every effort has been made to assure the accuracy and clarity of this document, AMPCONTROL
PTY LTD assumes no liability resulting from any omissions in this document, or from misuse of the
information obtained herein. The information in this document has been carefully checked and is
believed to be entirely reliable with all of the necessary information included. AMPCONTROL PTY LTD
reserves the right to make changes to any products described herein to improve reliability, function, or
design, and reserves the right to revise this document and make changes from time to time in content
hereof with no obligation to notify any persons of revisions or changes. AMPCONTROL PTY LTD does
not assume any liability arising out of the application or any use of any product or circuit described
herein; neither does it convey license under its patent rights or the rights of others.
Before You Begin
We would like to take a moment to thank you for purchasing the Ampcontrol ISUPS.
WARNING!
In the interests of safety and correct equipment operation, please
take the time to read and understand the content in this manual.
Ampcontrol Contact Details
7 Billbrooke Close, Cameron Park, NSW, 2285
P [phone] | F +61 2 4
EMAIL: [e-mail]
WEB: www.ampcontrolgroup.com
Applicable Software Version
This user manual is applicable to ISUPS V2 units with software version 5.5.

ISUPS2B004 Rev 1 Page 4 of 70
Ampcontrol Pty Ltd –ABN 28 000 915 542
ISUPS 300Wh V2 USER MANUAL
ISUPS2B004 R2 –DEC/17
TABLE OF CONTENTS
1 SAFETY AND OTHER WARNINGS..................................................................6
1.1 Safe Use of Equipment..............................................................................6
2 RECEIVING AND STORAGE............................................................................7
2.1 Receiving...................................................................................................7
2.2 Inspection..................................................................................................7
2.3 Storage after Delivery................................................................................7
2.4 Unpacking of Equipment............................................................................8
3 PRODUCT OVERVIEW ....................................................................................9
3.1 Key Features.............................................................................................9
3.2 Certification..............................................................................................11
3.3 Explanation of Ex Markings......................................................................11
4 INSTALLATION...............................................................................................12
4.1 General Warnings....................................................................................12
4.2 Mandatory Installation Practices ..............................................................13
4.3 Conditions of Use ....................................................................................13
4.4 Mechanical Installation.............................................................................15
4.5 Electrical Installation................................................................................17
5 OPERATION...................................................................................................19
5.1 LED Indication .........................................................................................20
5.2 Battery Life ..............................................................................................20
5.3 Output Characteristics .............................................................................21
6 WARNINGS FOR SAFE USE OF THE ISUPS................................................22
7 USER INTERFACE.........................................................................................23
7.1 Status Menu ............................................................................................23
7.2 Field Configurable Menus........................................................................23
8 MENU NAVIGATION.......................................................................................24
9 FIELD ACCESSIBLE MENU STRUCTURE.....................................................25
9.1 Field Accessible Menus...........................................................................26
10 FIELD CONFIGURATION MENU STRUCTURE...........................................30
10.1 Configuration Menu................................................................................32
10.2 Time and Date Menu –1st Major Sub-Menu...........................................33
10.3 User Defined Label –2nd Major Sub-Menu.............................................33
10.4 Password Management Menu –3rd Major Sub-Menu.............................34
10.5 UPS Output (Alarm & Run Time) Menu –4th Major Sub-Menu...............35
10.6 Modbus Communications Menu –5th Major Sub-Menu..........................38
10.7 Relay Configuration Modify Menu –6th Major Sub-Menu .......................39
10.8 Trip / Reset Latch –7th Major Sub-Menu................................................46
11 MODBUS & MEMORY MAP..........................................................................48
11.1 Memory Map..........................................................................................48
11.2 Log Reports...........................................................................................54
11.3 Output Toggle Time...............................................................................54
11.4 Time and Date.......................................................................................55

ISUPS2B004 Rev 1 Page 5 of 70
Ampcontrol Pty Ltd –ABN 28 000 915 542
ISUPS 300Wh V2 USER MANUAL
ISUPS2B004 R2 –DEC/17
12 SERVICE, MAINTENANCE & DISPOSAL.....................................................56
12.1 Equipment Service.................................................................................56
12.2 Equipment Maintenance........................................................................57
12.3 Equipment Overhaul..............................................................................57
12.4 Disposal.................................................................................................57
13 SPECIFICATIONS ........................................................................................58
14 EQUIPMENT LIST ........................................................................................59
APPENDIX A –DRAWINGS..............................................................................60
APPENDIX B –APPROVALS ............................................................................63
APPENDIX C –MSDS .......................................................................................64
TABLE OF FIGURES
Figure 3.1: Example of ISUPS V2 Label ...................................................................10
Figure 4.1: Dimensions and Mounting Details for the 300Wh ISUPS ........................16
Figure 5.1: Typical Output Voltage vs. Output Load Current Curve for the ISUPS ....21
Figure 7.1: ISUPS LCD Display and Keypad.............................................................23
Figure 9.1: Field Accessible Menu Structure.............................................................25
Figure 10.1: Field Configuration Menu –Initial Stages..............................................30
Figure 10.2: Field Configuration Menu –Final Stages...............................................31
TABLE OF TABLES
Table 1: Battery Backup Capacity and Output Parameter Details .............................14
Table 2: Recommended Time Intervals between Power Cycling...............................19
Table 3: The Function of the Menu Keys...................................................................24
Table 4: Possible Modbus Communications Settings................................................39
Table 5: List of Relay Driving Sources......................................................................41
Table 6: Available Digital Input Setting List ...............................................................44
Table 7: Trip / Reset Latch Operation.......................................................................46

ISUPS2B004 Rev 1 Page 6 of 70
Ampcontrol Pty Ltd –ABN 28 000 915 542
ISUPS 300Wh V2 USER MANUAL
ISUPS2B004 R2 –DEC/17
1 SAFETY AND OTHER WARNINGS
For safety reasons, the ISUPS must be installed, operated and serviced only by competent personnel.
Please read and understand this instruction manual completely before installing, operating or servicing
this equipment. Failure to install or operate this instrument in accordance with the instructions contained
in this manual may create hazardous operating conditions.
1.1 Safe Use of Equipment
The equipment supplied has been designed and manufactured to ensure safe operation. The equipment
must only be used within the design parameters.
The instructions within this manual must be observed as an aid towards achieving the safest possible
installation.
Persons responsible for installation, maintenance, or operation, must observe the following
instructions:
1.1.1 Changes to Equipment
Changes in the design and modifications to the equipment are not permitted. Unauthorised changes
made to the hardware or operating firmware will void the manufacturer's warranty, and may
compromise the integrity of the system into which it is installed and other connected equipment.
1.1.2 Equipment Knowledge
Experience with, or understanding of, this equipment is essential for the safe installation and removal of
the equipment. Therefore, please read and understand this manual prior to use. Competency based
training courses are recommended and are available on request.
1.1.3 Manual Handling
Precautions have been taken to ensure all equipment is safe to handle and free from sharp edges.
However, care should always be taken when handling enclosures and gloves should be worn.
1.1.4 Installation
Correct operation and safety depend on the ISUPS and associated equipment being installed correctly.
Mechanical and or electrical installation and maintenance of plant and equipment must only be carried
out by appropriately qualified personnel and must be tested thoroughly prior to operation.

ISUPS2B004 Rev 1 Page 7 of 70
Ampcontrol Pty Ltd –ABN 28 000 915 542
ISUPS 300Wh V2 USER MANUAL
ISUPS2B004 R2 –DEC/17
2 RECEIVING AND STORAGE
2.1 Receiving
All possible precautions are taken to protect the equipment against damage or losses during shipment,
however, before accepting delivery, check all items against the packing list or bill of loading. If there are
shortages or evidence of physical damage, notify Ampcontrol immediately.
Notify Ampcontrol immediately in the case of any discrepancies to the packing list. Keep a record of any
claims and correspondence. Photographs are recommended.
Where practicable do not remove protective covers prior to installation unless there are indications of
damage. Boxes opened for inspection and inventory should be carefully repacked to ensure protection
of the contents or else the parts should be packaged and stored in a safe place. Examine all packing
boxes, wrappings and covers for items attached to them, retain and store any approval documentation
for your safety file as applicable prior to wrapping being discarded.
2.2 Inspection
Equipment that is found to be damaged or has been modified away from its published specification must
not be used. Please contact Ampcontrol if the equipment is suspected to be different than that ordered or
if it does not match the published specifications.
2.3 Storage after Delivery
2.3.1 General Storage Requirements
When the equipment is not to be installed immediately, proper storage is important to ensure protection
of equipment and validity of warranty.
All equipment should be stored indoors, in a cool dry environment, on raised shelves, and protected from
the elements. Ensure that the storage area is not an area where water will collect.
2.3.2 ISUPS Battery Care
The storage period should be as short as possible. Temperature has an impact on the self-discharge
rate hence it is important to store the batteries in a fully charged condition in a cool but frost-free room.
The batteries will be delivered fully charged and installed inside the enclosure. The battery is non-
serviceable and non-user replaceable.
WARNING!
DO NOT ATTEMPT TO REMOVE THE BATTERIES FROM THE
ENCLOSURE
The ISUPS has no internal user-serviceable parts. All repairs must
be carried out by Ampcontrol personnel only. If a fault develops return
the ISUPS to Ampcontrol for repair. It is essential that no attempt be
made to repair the UPS as any attempt to dismantle or repair the UPS
can seriously compromise the safety and correct operation of the unit.

ISUPS2B004 Rev 1 Page 8 of 70
Ampcontrol Pty Ltd –ABN 28 000 915 542
ISUPS 300Wh V2 USER MANUAL
ISUPS2B004 R2 –DEC/17
The maximum storage time at ≤ 20°C is 12 months. Higher temperatures cause higher self-discharge
and shorter storage time between recharging operations.
If it is anticipated that the UPS will not be used and will remain disconnected from the mains power
supply for a period of time exceeding the recommended maximum, the battery should be recharged
before the maximum period is reached or the batteries could be permanently damaged.
We recommend re-charging the 300Wh ISUPS every 6 months while in storage.
To recharge the battery in this situation, connect a lead with mains plug to the unit’s AC input terminals.
Supply should be 90 ~ 250VAC. Turn the power on for the “Charging Time” as listed in Section 13,
Specifications.
2.4 Unpacking of Equipment
The method of packing used will depend on the size and quantity of the equipment. The following
cautions should be interpreted as appropriate.
CAUTION!
Take care when unpacking crates as the
contents may have shifted during transport.
ENVIRO
The disposal of packaging materials, replaced parts, or components
must comply with environmental restrictions without polluting the soil,
air or water.
Ensure that any timber and cardboard used as packaging is disposed
of in a safe and environmentally responsible manner.
Where possible, dispose of all waste products i.e. oils, metals, plastic
and rubber products by using an approved recycling service centre.

ISUPS2B004 Rev 1 Page 9 of 70
Ampcontrol Pty Ltd –ABN 28 000 915 542
ISUPS 300Wh V2 USER MANUAL
ISUPS2B004 R2 –DEC/17
3 PRODUCT OVERVIEW
The 300Wh V2 Intrinsically Safe Uninterruptible Power Supply (ISUPS 2) by Ampcontrol is designed for
Group I applications. The ISUPS converts 90 ~ 250VAC mains power into intrinsically safe low voltage
DC power with a built-in Battery Backup. A user accessible keypad, LCD screen, and indicator lamps
allow interrogation and configuration of the ISUPS. The ISUPS also provides several other intrinsically
safe monitoring and control connections.
3.1 Key Features
LCD Display with Keypad input
“Mains On”, “Output On” and “Output Overload” indicator LED’s
“Stop LED” and “Reset LED”
Local start/stop
Remote start/stop
Auto shutdown on low battery
Battery state and capacity indicators
Configurable alarms for:
oOutput over current
oOutput under current
oOutput under voltage
oBattery over temperature
Three output relays with voltage free NO contacts. These can be configured for multiple alarm
functions. Contacts are rated at 30V/3A.
Relay 1 is suitable for use with a separate intrinsically safe circuit i.e. the contact is isolated from
the UPS intrinsically safe circuit.
Relays 2 and 3 are suitable for use on the same intrinsically safe circuit (i.e. not isolated from
each other) that may be separate to the IS circuits of the UPS or those utilised on Relay 1
Two external isolated digital inputs (DI2, DI3) that may be used to activate functions as listed in
Table 6. These can be powered from a common external intrinsically safe circuit or the ISUPS
output.
A non-isolated digital input (DI1) that can be configured to activate functions as listed in Table 6
Modbus RTU over RS485 communications port to monitor the device
Event and periodic logs
User configurable timer to shut-down the UPS, while operating from battery
This ISUPS must be installed in an upright position and may be mounted by its back or base using M6
screws. The enclosure is of a robust stainless steel construction with screw connection terminals inside
internal connection boxes on top of the enclosure. The ISUPS has two separate connection
compartments to isolate the incoming AC power from the various Intrinsically Safe Circuits.
CAUTION!
The AC power terminal compartment should only be opened if the
external AC supply has been de-energised. Opening this
compartment in a hazardous area when the AC supply is energised is
not permitted.
WARNING!
THE MAINS VOLTAGE COMPARTMENT MUST NOT BE OPENED
WHEN AN EXPLOSIVE ATMOSPHERE IS PRESENT.

ISUPS2B004 Rev 1 Page 10 of 70
Ampcontrol Pty Ltd –ABN 28 000 915 542
ISUPS 300Wh V2 USER MANUAL
ISUPS2B004 R2 –DEC/17
All cables enter and exit the enclosure via appropriate cable glands. The cable glands must meet a
minimum requirement of IP66 to maintain the integrity of the enclosure. If the ISUPS is to be installed in
a Zone 1 environment, then the gland used on the incoming AC supply will need to be certified to ‘Ex d’
or ‘Ex e’.
NOTE
Cable glands into the ISUPS enclosure must be a minimum of IP66. If
the enclosure is going to be installed in Zone1, then the AC Mains gland
must be rated to ‘Ex d’ or ‘Ex e’.
Typical use of this power supply is for gas detection systems but it is also suitable for voice
communication systems, serial to Ethernet converters, and other electronic equipment requiring
intrinsically safe power in Group I applications. The Intrinsically Safe UPS can be used as a simple
backup system for IS circuits in line with the output parameters and the factory default configuration or
can be user configured with optional functions.
The user can configure various functions of the UPS, as well as the use of the external I/O which
includes 3 digital inputs, 3 relay contacts and Modbus communications.
WARNING!
The UPS has no internal user-serviceable parts. All repairs must be
carried out by Ampcontrol personnel only. Should a fault develop, return
the ISUPS to Ampcontrol for repair. It is essential that no attempt be
made to repair the UPS as any attempt to dismantle or repair the UPS
can seriously compromise the safety of the unit and the consequence
can be fatal.
Figure 3.1: Example of ISUPS V2 Label

ISUPS2B004 Rev 1 Page 11 of 70
Ampcontrol Pty Ltd –ABN 28 000 915 542
ISUPS 300Wh V2 USER MANUAL
ISUPS2B004 R2 –DEC/17
3.2 Certification
The ISUPS is compliant with the following standards:
oIEC 60079.0: 2011 Ed 6.0 –Explosive atmospheres –Part 0: General requirements
oIEC 60079.7: 2011 Ed 5.0 –Explosive atmospheres –Part 7: Equipment protection by
increase safety “e”
oIEC 60079.11: 2011 Ed 6.0 –Explosive atmospheres –Part 11: Equipment protection by
intrinsic safety “I”
oIEC 60079.18: 2011 Ed 4.0 –Explosive atmospheres –Part 18: Equipment protection by
encapsulation “m”
The ISUPS conforms with IEC 60079.11: 2011, clause 6.3.13
3.3 Explanation of Ex Markings
An example of the marking label is shown above in Figure 3.1 and the certifications discussed below.
Mains Powered - Ex eb ia mb [ia Ma] I Mb
Techniques eb (mains input), ia (keypad) and mb (input power module) are used for Zone 1 located
equipment. The [ia] outputs can be fed into the Zone 0 area.
Battery Powered - Ex ia I Ma
Equipment can be located in a Zone 0 area.

ISUPS2B004 Rev 1 Page 12 of 70
Ampcontrol Pty Ltd –ABN 28 000 915 542
ISUPS 300Wh V2 USER MANUAL
ISUPS2B004 R2 –DEC/17
4 INSTALLATION
4.1 General Warnings
These instructions have been designed to assist users of the ISUPS with installation. The ISUPS is
required to be installed into a system along with appropriate devices providing input signals (sensors)
and output control/indication (fan controls, beacons, sirens, SCADA systems etc.).
Before the ISUPS can be installed, there are a number of things that need to be considered and
understood to prevent incorrect or unsafe operation of the ISUPS or the system into which it is installed.
Along with relevant competence, and an understanding of the target application, the following points
should be considered:
4.1.1 Ensure that the information provided in this user manual, particularly Section 6, is fully
understood.
It is extremely important that the limitations and functionality of the ISUPS are understood to prevent
incorrect installation and use from creating a potentially dangerous risk. If in doubt as to the nature of the
limitations or their implication, consult a competent authority such as a supervisor or Ampcontrol
applications engineer.
4.1.2 Ensure that the application into which the ISUPS is being installed has been properly
defined, designed and approved.
Any system intended to mitigate the risk of injury needs to be properly designed and implemented. Such
a system must be the result of structured risk analysis with the outcomes used to define the system
requirements. These requirements, in turn, will guide the choice of instrumentation, logic solvers and
actuators needed to implement the system. Understanding the needs of the system will ensure proper
selection of equipment.
4.1.3 Ensure that the ISUPS will properly perform the required functions within the system
design.
It is important to understand how the ISUPS is intended to interact with other equipment within a system.
For safe and reliable use, it is crucial that the ISUPS’operation is not compromised by incompatibilities
with connected equipment.
4.1.4 Ensure that the intended devices to be connected to the ISUPS are compatible with the
entity parameters as specified on the ISUPS certificate of compliance (conditions of safe use).
Check the terminal I.S parameters of all devices intended to be connected to the ISUPS against the
ISUPS certificate of conformance. If in doubt, consult a competent authority, or contact an Ampcontrol
applications engineer.
4.1.5 Modifications of any form to the ISUPS are prohibited.
The ISUPS as supplied has been designed and manufactured to comply with the requirements of
electrical standards. If modifications of any form are made to the ISUPS, the equipment may no longer
be fit for use. If any modifications or damage to the ISUPS is evident, do not use the equipment and
contact Ampcontrol for advice.
CAUTION!
The user is responsible for maintaining the Explosion Protection rating
by complying with the “List of Special Conditions” outlined in the
certification (See APPENDIX B –APPROVALS).

ISUPS2B004 Rev 1 Page 13 of 70
Ampcontrol Pty Ltd –ABN 28 000 915 542
ISUPS 300Wh V2 USER MANUAL
ISUPS2B004 R2 –DEC/17
4.2 Mandatory Installation Practices
The following information must be adhered to when installing the ISUPS. Failure to adhere to this
information may give rise to unsafe operation.
Using the ISUPS in a manner that exceeds its electrical, functional or physical specifications, or in a way
that is contrary to its operating restrictions, may create risks to personnel and/or equipment resulting in
injury or death.
The ISUPS must be powered within the specified voltage range.
The Conditions of Safe Use listed in the certification must be adhered to.
The installation of the ISUPS must be carried out by suitably trained and qualified personnel.
Identification labels fixed to the ISUPS must not be damaged, removed or covered before, during
or after installation.
The installation is to be in accordance with the relevant installation Standards/Codes of Practice.
Modifications must not be made to any part of the ISUPS. As supplied, the unit is built to, and
complies with the relevant standards. Modifications to its construction will render the unit non-
compliant.
Complete and accurate records of the installation must be kept as part of the site installation.
4.3 Conditions of Use
There are eighteen models of ISUPS with a range of voltage and current limits that may be selected from
Table 1, following. Various output options and battery capacities that are not shown in the table can be
manufactured on request as a system special.
NOTE
System specials will require longer lead times to manufacture.
NOTE
Some standard models of ISUPS have been tested with two different
sets of I.S. parameters. The installer may select and apply only one set
of parameters to the I.S. assessment, depending on the requirements of
the system.
WARNING!
Um = 250V (mains power input) must not be applied when installed in
Zone 0 areas.

ISUPS2B004 Rev 1 Page 14 of 70
Ampcontrol Pty Ltd –ABN 28 000 915 542
ISUPS 300Wh V2 USER MANUAL
ISUPS2B004 R2 –DEC/17
4.3.1 IS Parameters
The following input / output parameters must be taken into account when installed.
Mains Input
Um = 250Vac
Mains power input must not be applied when installed in Zone 0 areas.
Terminal X8; DC Output:
Table 1: Battery Backup Capacity and Output Parameter Details
Description
Uo
Io
Co
Lo
L/R
Um
15.1VDC / 1.50A Output
15.1V
1.50A
1.0µF
200µH
87.17µH/Ω
250V
15.1V
1.50A
2.09µF
181.5µH
79µH/Ω
250V
15.1VDC / 0.51A Output
15.1V
0.51A
1.0µF
200µH
87.17µH/Ω
250V
15.1VDC / 0.5A Output
15.1V
0.50A
1.0µF
200µH
87.17µH/Ω
250V
15.1VDC / 0.47A Output
15.1V
0.47A
2.01µF
520µH
87.17µH/Ω
250V
14.5VDC / 1.50A Output
14.5V
1.50A
1.0µF
200µH
87.17µH/Ω
250V
12.6VDC / 2.5A Output
12.6V
2.50A
2.0µF
167.2µH
33µH/Ω
250V
12.6VDC / 2.4A Output
12.6V
2.40A
2.0µF
167.2µH
33µH/Ω
250V
12.6VDC / 2.0A Output
12.6V
2.00A
502nF
164µH
40.1µH/Ω
250V
12.6V
2.00A
20.54µF
102.1µH
39µH/Ω
250V
12.6VDC / 1.5A Output
12.6V
1.50A
1.0µF
200µH
87.17µH/Ω
250V
12.6V
1.50A
2.09µF
181.5µH
79µH/Ω
250V
The above output parameters Co, Lo, Lo/Ro were determined based on spark testing. The same Co, Lo,
Lo/Ro values are allowed to be used with models of the ISUPS when configured with lesser Uo and / or
Io values.
Terminal X7; External Start Push Button:
Uo = 32.5 V
Io = 24 mA
Lo = 100 µH
Co = 0.040 µF
Terminal X6; Digital Input 1:
Uo = 16.5 V
Io = 16.8 mA
Lo = 100 µH
Co = 1 µF

ISUPS2B004 Rev 1 Page 15 of 70
Ampcontrol Pty Ltd –ABN 28 000 915 542
ISUPS 300Wh V2 USER MANUAL
ISUPS2B004 R2 –DEC/17
Terminal X4 Pin 3 & Terminal X5 Pin 1; Data for RS-485:
Ui = 7.14 V
Ci = 0.221 µF
Li = 0 µH
Uo = 5.88 V
Io = 124 mA
Terminal X4 Pins 1 & 2; Power Supply for RS-485:
Ui = 16.5 V
Ii = 2.8 A
Ci = 0 µF
Li = 0 µH
Terminal X3; Relay 1:
Ui = 30 Vdc
Ii = 3 A
Uo = 0 V
Terminal X2; Digital Inputs 2 & 3
Ui = 16.5 V
Uo = 0 V
Terminal X1; Relay 2 and Relay 3:
Ui = 30 Vdc
Ii = 3 A
Uo = 0 V
4.4 Mechanical Installation
Install the ISUPS in an area that complies with the relevant parts of the specifications in Section 6
‘Warnings for the Safe use of the ISUPS’. In addition to these requirements, the following is also
required:
1. The ISUPS must be installed in an upright position.
2. Ensure adequate space above and below the unit to allow free air movement around the unit.
3. Mounting of the ISUPS should be in such a way as to allow full access to the connection
terminals, display and buttons. Positioning of the ISUPS should also be such to allow easy
removal of the unit for repair. The ISUPS should also be clearly visible to allow inspections to be
carried out without having to remove parts of the installation (visual inspections).
4. The ISUPS must be mounted in such a way that the battery’s breather hole (located on the back
plate) is not covered.

ISUPS2B004 Rev 1 Page 16 of 70
Ampcontrol Pty Ltd –ABN 28 000 915 542
ISUPS 300Wh V2 USER MANUAL
ISUPS2B004 R2 –DEC/17
4.4.1 Fasteners
It is a requirement of certification that the Ex e terminal compartment cover be secured to the housing by
M4 captive screws (P/N 111534) with SS spring washers.
The Ex ia terminal compartment cover is secured to the housing by M4 captive screws (P/N 111534)
with SS spring washers.
To ensure adequate sealing and achieve the IP66 rating, all terminal covers screws must be tightened to
a torque of 1.6Nm.
CAUTION!
Wiring to the ISUPS must comply with any statutory, site or local wiring
codes and Explosion Protection standards, as appropriate.
Figure 4.1: Dimensions and Mounting Details for the 300Wh ISUPS
298
283
283
ISUPS2 300Wh
M6
Earth Stud
M20 Plug
4 Places
M16 Plug
4 Places
227
206
20
100
20
20
140
17.5

ISUPS2B004 Rev 1 Page 17 of 70
Ampcontrol Pty Ltd –ABN 28 000 915 542
ISUPS 300Wh V2 USER MANUAL
ISUPS2B004 R2 –DEC/17
4.5 Electrical Installation
When installing the ISUPS, consideration must be given to I.S. parameter matching, cable selection,
cable termination, cable marking and cable restraint. The installation must be carried out with reference
to standards appropriate for the application, industry and/or locale. These standards include, but are not
limited to: AS/NZS 3000, AS/NZS 1972, AS/NZS 60079 (Parts 14, 17 & 25) & AS/NZS 4871. Failure to
comply with standards could lead to a dangerously installed system.
Good installation practices are to be followed to minimise the stress on the terminations and the ISUPS.
The various input / output parameters of Section 4.3.1 must be taken into account during installation.
1. Mains power is applied to the Ex e terminal compartment. An IP66 or better, M20 Ex e or Ex d
certified cable gland for group I applications is required.
2. The Ex e compartment must not be opened when an explosive atmosphere is present.
3. Unused cable entries into the Ex e terminal compartment must be closed with Ex e or Ex d
certified blanking elements. The blanking element supplied with the ISUPS must be tightened to
a torque of 20Nm to achieve an adequate seal.
4. Unused cable entries into the Ex i terminal compartment must be closed with IP66 rated blanking
elements.
5. The intrinsically safe output and digital I/O are accessible via the intrinsically safe terminal
compartment. The use of applicable M16 or M20 cable glands is required to ensure the IP66
rating of the enclosure is maintained and that requirements of local Mines Regulations for Exe
and Intrinsically Safe “ia” wiring are complied with.
6. For terminal connection details see Appendix Drawing ISUPS2Z005.
4.5.1 Earthing
1. It is a safety requirement that the UPS is connected to earth. This connection can be to either the
internal Ex e terminals 2 or 3, or the external earth stud.
2. To achieve full EMC compliance the output and user I/O cables must be screened with the
screen connected to the earth stud within the IS terminal compartment.

ISUPS2B004 Rev 1 Page 18 of 70
Ampcontrol Pty Ltd –ABN 28 000 915 542
ISUPS 300Wh V2 USER MANUAL
ISUPS2B004 R2 –DEC/17
4.5.2 Terminal Requirements
Ex e Terminals
The cable size shall be between 0.5mm2and 4mm2and rated for >3.4A.
Not more than one single or multiple strand lead shall be connected into any terminal, unless
multiple conductors have been joined in a suitable manner, e.g. two conductors into a single
insulated crimped bootlace ferrule.
Leads connected to the terminals shall be insulated for 275V or greater and this insulation shall
extend to within 1mm of the metal of the terminal throat.
All terminal screws, used and unused, shall be tightened down to between 0.5 Nm and 0.7 Nm.
Cross-connecting combs shall not be used.
Ex i Terminals –Large Terminals Wiring:
Stripping length: Max 8mm
Diameter: 0.2mm2to 4mm2without ferrule
Max ferrule size: 4mm2
Max twin ferrule size: 2.5mm2
Wires should be installed so that wire insulation extends to the terminal. i.e. there should be no copper
protruding. This is necessary to maintain adequate clearance between adjacent IS circuits.
Ex i Terminals –Small Terminals Wiring:
Stripping length: Max 9mm
Cross sectional area: 0.2mm2to 1.5mm2without ferrule
Max ferrule size with sleeve: 0.5mm2
Max ferrule size without sleeve: 1mm2

ISUPS2B004 Rev 1 Page 19 of 70
Ampcontrol Pty Ltd –ABN 28 000 915 542
ISUPS 300Wh V2 USER MANUAL
ISUPS2B004 R2 –DEC/17
5 OPERATION
The Intrinsically safe uninterruptible power supply exhibits very low output impedance. The output
voltage is reduced by an average of 0.4V at full load. Precise current limiting provides maximum
available current up to the Io parameter. The power supply output acts as a current limited voltage
source. The load impedance can vary down to short circuit while the maximum output current is
maintained. This is a safety feature; we recommend not exceeding the load that reduces the output
voltage to maintain the maximum output current.
The UPS has various configurable functions but for users who wish to use it in the simplest form an ex-
factory default setting is programmed into the unit prior to delivery. Refer to Section 10.5 & Section 10.7
for details on programming and customising as required to suit a specific application. A brief on the
functionality of the ex-factory default settings is given below:
The programmable output on time is set to “Always ON”, the output will remain on even when the
mains are switched off, and until the battery voltage reaches the low level. The output on time
can be programmed to any time at 10-minute steps. In this case, the output will stop when the on
time is expired. To initiate another cycle it is necessary to start the ISUPS either by using an
externally wired momentary switch, or the local keypad.
Application of mains power will override any timer function and will automatically switch the DC
output on if it is in an off status due to time out. If the UPS has been “stopped” by pressing the
local “STOP” button prior to loss of mains supply the output will not be energised by the return of
the mains supply.
The minimum battery voltage level will switch the output off automatically ignoring the timer
activity, as a self-protection feature.
Digital inputs are mapped 1 to 1 to the relays to mimic input status.
As part of its design as an Intrinsically Safe product the input AC supply to the UPS is protected by both
a ceramic fuse and resettable thermal fuse (NTC), which is encapsulated into the electronics assembly.
It is unlikely, but possible that repeated application of the mains supply over a short timescale (the
thermal fuse not having enough time to recover) could cause the ceramic fuse to blow if the AC power
supply is particularly noisy or at the limit of the permitted voltage.
To reduce any possibility of this protection device being activated it is recommended to avoid cycling
power to the UPS frequently. Please follow the time intervals shown below between the consecutive
applications of mains power to the UPS to avoid blowing the input ceramic fuse.
Table 2: Recommended Time Intervals between Power Cycling
Mains Input Voltage
Ambient Temperature
Power Up intervals
110Vac
≤40degC
30-seconds
110Vac
>40degC
60-seconds
240/250Vac
≤30degC
90-seconds
240/250Vac
>30degC
3-minutes
The Mains LED not illuminating when AC power is applied to the UPS would indicate activation of the
protective fuse. In this case, the UPS should be returned to Ampcontrol for service.
CAUTION!
Maintain the time intervals between successive applications of mains
power to the UPS. Multiple applications of mains power, at insufficient
intervals, may risk blowing the internal ceramic fuse. Replacing a blown
fuse will necessitate returning the unit to Ampcontrol for repairs (See
warning in Section 3, Product Overview). This repair could be time
consuming & expensive. (See detail above)
On receipt of your UPS, it should be in Stop mode. The front display will be off and the reset LED
flashing.

ISUPS2B004 Rev 1 Page 20 of 70
Ampcontrol Pty Ltd –ABN 28 000 915 542
ISUPS 300Wh V2 USER MANUAL
ISUPS2B004 R2 –DEC/17
5.1 LED Indication
On the front facia there are 5 status indication LEDS:
5.1.1 Reset LED
When the STOP button is pressed to stop/lock the UPS, this LED starts flashing and remains flashing
until the UPS is unlocked by pressing the RESET button. The LED remains flashing when the UPS is in
lock mode. The application of mains power while the UPS is locked will not start the UPS; it will be
necessary to press the RESET button to unlock and then press the START button to start the UPS.
5.1.2 Stop LED
When the UPS is unlocked (by pressing the RESET button) it forces the STOP LED to begin flashing.
This means that the UPS is ready to start and pressing and holding the START button for 1-second will
start the UPS. The UPS may also be started by momentarily closing the terminals ‘Start+’ and ‘Start In’
located at X7 on the terminal Board. The successful start is indicated by the OUTPUT LED becoming
illuminated at which time output will be available at the output terminals. The application of mains power
while the UPS is unlocked will immediately start the UPS.
5.1.3 Output LED
This LED illuminates when the UPS is on.
5.1.4 Overload LED
This LED illuminates when the UPS is operating in current limit mode, and extinguishes when operating
normally.
5.1.5 Mains On LED
This LED illuminates when the mains power is applied to the UPS, and extinguishes when mains power
is switched off.
5.1.6 LCD Backlight
The LCD display turns off 30-second after the last press on any button.
5.2 Battery Life
Provided the ISUPS is stored as per the requirements listed in Section 2, the battery within the unit can
be expected to have an operational lifespan of approximately 3 years at an ambient temperature of 20˚C.
It is important to note that the ISUPS’s battery life is a function of temperature, and as such, the
expected life span of the battery must be degraded as the ambient temperature increases. At an ambient
temperature of 40˚C, the life of the battery within the ISUPS is reduced to approximately 1 year (see
Section 12.3 “Equipment Overhaul”).
CAUTION!
The “Reset” LED flashes continuously (<1-second intervals) to indicate
that this equipment is in “Stand-by” mode and contains an operational
battery pack. The battery life is 12 months for the 300Wh UPS when
stored in the recommended manner.
ENVIRO
Lead-acid batteries are recyclable products. Recognising the need to be
involved in the whole lifecycle of a battery and to protect the
environment, Ampcontrol will recycle batteries from ISUPS units that
are returned to Ampcontrol at the end of their life.