Alpha AMP24 HP User Manual

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Alpha Modular Power System 24 HP

Installation & Operation Manual

Part # 0260011-J0

Effective: 03/2012

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Page 3

Alpha Modular Power System 24 HP

Installation & Operation Manual

NOTE:

Photographs contained in this manual are for illustrative purposes only. These photographs may not match your installation.

NOTE:

Operator is cautioned to review the drawings and illustrations contained in this manual before proceeding. If there are questions regarding the safe operation of this powering system, contact Alpha Technologies or your nearest Alpha representative.

NOTE:

Alpha shall not be held liable for any damage or injury involving its enclosures, power supplies, generators, batteries, or other hardware if used or operated in any manner or subject to any condition not consistent with its intended purpose, or is installed or operated in an unapproved manner, or improperly maintained.

For technical support, contact Alpha Technologies:

No part of this documentation shall be reproduced, stored in a retrieval system, translated, transcribed, or transmitted in any form or by any means manual, electric, electronic, electromechanical, chemical, optical, or otherwise without prior explicit written permission from Alpha Technologies.

This documentation, the software it describes, and the information and know-how they contain constitute the proprietary, conﬁdential and valuable trade secret information of Alpha Technologies, and may not be used for any unauthorized purpose, or disclosed to others without the prior written permission of Alpha Technologies.

The material contained in this document is for information only and is subject to change without notice. While reasonable efforts have been made in the preparation of this document to assure its accuracy, Alpha Technologies assumes no liability resulting from errors or omissions in this document, or from the use of the information contained herein. Alpha Technologies reserves the right to make changes in the product design without reservation and without notiﬁcation to its users.

Canada and USA: 1-888-462-7487

International: +1-604-436-5547

Email: support@alpha.ca

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Table of Contents

1. Safety .............................................................................................................................. 6

1.1 Safety Symbols ............................................................................................................................. 6

1.2 General Safety .............................................................................................................................. 7

1.3 External Battery Safety ................................................................................................................. 8

1.4 Utility Power Connection ............................................................................................................... 8

1.5 Equipment Grounding ................................................................................................................... 9

2. Product Description....................................................................................................... 10

2.1 Theory of Operation .................................................................................................................... 10

2.2 System Components ................................................................................................................... 12

2.3 Rear Components ....................................................................................................................... 13

2.4 Low Voltage Battery Disconnect (Optional) ................................................................................ 15

2.5 Battery Temperature Probes ....................................................................................................... 16

2.6 Network Requirements ............................................................................................................... 17

3. Power Congurations.................................................................................................... 19

3.1 Power System Conguration Terminology .................................................................................. 19

3.2 4i Shelf Systems (No Battery Charger) ....................................................................................... 20

3.3 3i+1R Shelf Systems (Integrated Battery Charger) .................................................................... 20

3.4 System Spares ............................................................................................................................ 20

3.5 120V Single Phase Systems ....................................................................................................... 21

3.6 120V/240V Split Phase or 120/208V 2-Pole Systems ................................................................ 24

3.7 120V/208V 3-Phase Systems ..................................................................................................... 27

3.8 AMPS24 HP - Recommended DC Breaker and Wire Sizes ....................................................... 29

3.9 How to Congure Inverters in AC Input Groups, AC Output Groups and DC Input Groups ....... 30

4. System Pre-Installation ................................................................................................. 32

4.1 Site Selection .............................................................................................................................. 32

4.2 Recommended Installation Layout .............................................................................................. 32

4.3 Transporting the Cabinet ............................................................................................................. 33

4.4 Unpacking Instructions ................................................................................................................ 34

5. Installation ..................................................................................................................... 35

5.1 Input/Output Cabling ................................................................................................................... 35

5.2 AC Wiring .................................................................................................................................... 37

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5.3 DC Battery and Ground Cabling ................................................................................................. 38

5.4 DC Ground .................................................................................................................................. 41

5.5 AMPS24 HP with External Maintenance Bypass Switch ............................................................ 42

5.6 Generator Automatic Transfer Switch ......................................................................................... 42

5.7 Commissioning the System for the First Time ............................................................................ 43

6. System Operation ......................................................................................................... 52

6.1 CXCU Controller Operation ........................................................................................................ 52

6.2 Inverter monitoring and control ................................................................................................... 55

6.3 Inverter Module Indicators .......................................................................................................... 62

6.4 Rectier Module .......................................................................................................................... 63

7. Preventive Maintenance ............................................................................................... 67

7.1 Recommended maintenance schedule ....................................................................................... 67

7.2 Tools and Equipment .................................................................................................................. 67

7.3 Spare Parts ................................................................................................................................. 68

7.4 Replacing a Rectier ................................................................................................................... 69

7.5 Replacing a Defective Fan—Inverter or Rectier ........................................................................ 69

7.6 Removing the CXCU Controller .................................................................................................. 69

7.7 Replacing the Surge Suppression Module .................................................................................. 70

7.8 Fuse Replacement ...................................................................................................................... 71

7.9 Synchronization with a Maintenance Bypass Switch (MBS) ....................................................... 73

8. Troubleshooting ............................................................................................................ 74

8.1 Non Recoverable Error ............................................................................................................... 74

8.2 Recoverable Error ....................................................................................................................... 74

9. System Specications ................................................................................................... 84

9.1 Power De-rating Due To Altitude ................................................................................................. 84

9.2 Power De-rating Due To Temperature ........................................................................................ 84

9.3 System Specications ................................................................................................................. 85

9.4 Specications for AIM 1500 Module ............................................................................................ 86

9.5 Specications for 48-1.8 kW Rectier (P/N 010-621-20-040) ..................................................... 87

10. Conguration Parameters ........................................................................................... 88

10.1 Transferring Inverter Settings to Another System ..................................................................... 88

10.2 Examples of Modications to Conguration Parameters .......................................................... 88

10.3 Global Settings (ID 1 – 50) ........................................................................................................ 90

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10.4 Inverter Parameters (ID 51 – 550) ............................................................................................ 91

10.5 Alarm Settings (ID 551-950) ...................................................................................................... 97

11. Warranty ...................................................................................................................... 99

11.1 Battery Warranty ....................................................................................................................... 99

12. Certication ............................................................................................................... 100

List of Figures

Figure 1 — AMPS24 HP System Components .................................................................................. 13

Figure 2 — Surge Suppression Modules ........................................................................................... 14

Figure 3 — AMPS24 HP rear view (with protective covers removed) ................................................ 14

Figure 4 — Eight-pin terminal strip and 40-pin connector pin locations ............................................. 15

Figure 5 — LVD wiring ....................................................................................................................... 16

Figure 7 — Batteries > Congure Batteries ....................................................................................... 17

Figure 6 — Battery temperature probes ............................................................................................ 17

Figure 8 — Cable connection to CXCU for graphic display ............................................................... 18

Figure 9 — Single network connection to CXCU ............................................................................... 18

Figure 10 — Multiple network connections to the CXCU ................................................................... 19

Figure 11 — Split Phase from a Single phase supply ........................................................................ 20

Figure 12 — 2-Pole from a 3-phase supply ...................................................................................... 20

Figure 13 — Monitoring AC Input Groups, AC Output Groups and DC Input Groups ....................... 31

Figure 14 — DC input breakers ......................................................................................................... 32

Figure 15 — Shipping dimensions (in inches) ................................................................................... 34

Figure 16 — AMPS24 Power and Battery Connections ..................................................................... 37

Figure 17 — AC Wiring connections diagram .................................................................................... 38

Figure 18 — AC Wiring (shown for 3-phase) ..................................................................................... 38

Figure 19 — Single feed, parallel battery strings ............................................................................... 39

Figure 20 — Dual feed, two battery strings in parallel ....................................................................... 40

Figure 21 — DC battery wiring with independent dual A/B feed ........................................................ 41

Figure 22 — DC ground, inverter only systems ................................................................................. 42

Figure 23 — Representative system wiring for AMPS24 HP system with MBS ................................ 43

Figure 24 — Controller ....................................................................................................................... 45

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Figure 25 — Controller default home screen ..................................................................................... 45

Figure 26 — Placement of initial inverters (shown for split phase system) ........................................ 46

Figure 27 — Inverter module showing AC input LED ........................................................................ 46

Figure 28 — Unlocking and locking an inverter module for removal or insertion ............................... 47

Figure 29 — Inserting and removing an inverter module ................................................................... 47

Figure 30 — Inverters > View Live Status.......................................................................................... 48

Figure 31 — Matching AC Input Groups to AC Output Groups ......................................................... 49

Figure 32 — Set Output (Split Phase System) .................................................................................. 50

Figure 33 — Inserting blanks in open slots ........................................................................................ 51

Figure 34 — CXCU system controller home screen .......................................................................... 53

Figure 35 — CXCU controller ............................................................................................................ 54

Figure 36 — Editing the user interface text. ....................................................................................... 55

Figure 37 — Inverters > View Live Status interface ........................................................................... 56

Figure 38 — Set Output window ........................................................................................................ 57

Figure 39 — Group Mapping window (shown for a two phase system) ............................................. 58

Figure 40 — Group Status window .................................................................................................... 58

Figure 41 — Set Input window .......................................................................................................... 59

Figure 42 — General Settings window .............................................................................................. 59

Figure 43 — Congure alarms window ............................................................................................. 60

Figure 44 — T2S alarms in event logs ............................................................................................... 61

Figure 45 — Retrieve alarm history le .............................................................................................. 61

Figure 46 — Signals (inverters) window ........................................................................................... 62

Figure 47 — Auto DC Priority ............................................................................................................. 62

Figure 48 — Inverter module status, power LEDs ............................................................................. 63

Figure 49 — Output power indicator LEDs ........................................................................................ 63

Figure 50 — Cordex 48-1.8kW .......................................................................................................... 64

Figure 51 — Surge Suppression Modules ......................................................................................... 71

Figure 52 — Rectier fuses (behind back top panel) ......................................................................... 72

Figure 53 — Fuse location for LCD touch screen .............................................................................. 73

Figure 54 — Maintenance Bypass Switch ......................................................................................... 74

Figure 55 — Manage Cong File window .......................................................................................... 89

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List of Tables

Table A — Eight-pin Terminal Strip from AMPS 24 ............................................................................ 15

Table B — Pinouts for 40 Pin Connector Interface to CXCR ............................................................. 16

Table C — 10.5kVA, 9kVA and 4.5kVA, 120V Single Phase 3i+1R Shelf Systems ........................... 23

Table D — 12kVA and 6kVA, 120V Single Phase, 4i Shelf Systems ................................................. 24

Table E — 21kVA, 18kVA, & 9.0kVA 120/240V Split Phase or 120/208 2-Pole 3i+1R Shelf ............. 26

Table F — 24kVA & 12KVA 120/240V Split Phase or 120/208 2-Pole 4i shelf Systems .................... 27

Table G — 18kVA and 13.5kVA, 120V/208V 3-Phase Systems ........................................................ 29

Table H — DC Input Groups .............................................................................................................. 32

Table I — Tools .................................................................................................................................. 68

Table J — Spare Parts ....................................................................................................................... 69

Table K — Inverter Alarm Codes ........................................................................................................ 78

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1. Safety

SAVE THESE INSTRUCTIONS: This manual contains important safety

instructions that must be followed during the installation, servicing, and maintenance of the product. Keep it in a safe place. Review the drawings and illustrations contained in this manual before proceeding. If there are any questions regarding the safe installation or operation of this product, contact Alpha Technologies or the nearest Alpha representative. Save this document for future reference.

1.1 Safety Symbols

To reduce the risk of injury or death, and to ensure the continued safe operation of this product, the following symbols have been placed throughout this manual. Where these symbols appear, use extra care and attention.

The use of ATTENTION indicates specic regulatory/code requirements that may affect the placement of equipment and /or installation procedures.

NOTE:

A NOTE provides additional information to help complete a specic task or procedure. Notes are designated with a checkmark, the word NOTE, and a rule beneath which the information appears.

CAUTION!

CAUTION indicates safety information intended to PREVENT DAMAGE to material or equipment. Cautions are designated with a yellow warning triangle, the word CAUTION, and a rule beneath which the information appears.

WARNING!

WARNING presents safety information to PREVENT INJURY OR DEATH to personnel. Warnings are indicated by a shock hazard icon, the word WARNING, and a rule beneath which the information appears.

HOT!

The use of HOT presents safety information to PREVENT BURNS to the technician or user.

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1.2 General Safety

• Only qualiﬁed personnel shall install, operate, and service the power system and components.

• Observe all applicable national and local electrical and building codes during installation.

• Mount the AMPS24 HP system in a rack that is securely bolted to the ﬂoor.

• Always assume electrical connections and/or conductors are live.

• Turn off all circuit breakers and double-check potentially charged components with a voltmeter before performing installation or maintenance.

• Before installation, verify that the input voltage and current requirements of the load are within the speciﬁcations of the power system. Refer to the product nameplate label.

• Keep tools away from walk areas to prevent personnel from tripping over the tools.

• Wear safety glasses when working under any conditions that may be hazardous to your eyes.

• Do not work on the power system, or connect or disconnect cables, during atmospheric lightning activity.

• Do not let water enter the enclosure as this can cause electrical shorts, shocks, or electrocutions.

• Do not remove the covers of electrical components as this can cause electrical shorts, shocks or electrocutions. There are no user serviceable parts inside.

• The power system is certiﬁed for use in restricted access locations only.

• All operators must be trained to perform the emergency shutdown procedure.

• For 3i+1R shelf models containing rectiﬁers, see section 7.8 to replace internal fuses.

• The power system must be connected only to a dedicated branch circuit.

• Equip the utility service panel with a circuit breaker of appropriate rating.

• Do not exceed the output rating of the system when connecting the load.

• External metal surface temperatures on the rear of the AMPS24 HP system can exceed 70°C. Use caution when working around the equipment while it is in operation.

• Always use proper lifting techniques when handling units, modules, or batteries.

• The power system contains more than one live circuit. Voltage may still be present at the output even when the input voltage is disconnected.

• Minimize the risk of sparks and wear on the connectors. Always switch off the inverter’s battery circuit breaker before connecting or disconnecting the battery pack.

• In the event of a short-circuit, batteries present a risk of electrical shock and burns from high currents. Observe proper safety precautions.

• Always wear protective clothing, such as insulated gloves, and safety glasses or a face shield when working with batteries.

• Carry a supply of water, such as a water jug, to wash eyes or skin in case of exposure to battery electrolyte.

• Do not allow live battery wires to contact the enclosure chassis. Shorting battery wires can result in a ﬁre or possible explosion.

• Replace batteries with those of an identical type and rating. Never install old or untested batteries.

• Only use insulated tools when handling batteries or working inside the enclosure.

• Remove all rings, watches and other jewelry before servicing batteries.

• Recycle used batteries. Spent or damaged batteries are environmentally unsafe. Refer to local codes for the proper disposal of batteries.

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• A disconnect switch shall be provided by others for the AC input and AC output circuits.

• Risk of Electric Shock and Fire Hazard: replace fuse with the same type and rating.

1.3 External Battery Safety

• The power system requires an over-current protection device for the external batteries. The

maximum allowable current is typically 450A but can be less depending on the model. Follow the local electrical codes.

• Ensure that the external battery connection is equipped with a disconnect.

• If the batteries are stored for extended periods before the installation, charge the batteries at

least once every three months to ensure optimum performance and maximum battery service life.

• Refer to the battery manufacturer’s recommendation to select the correct ﬂoat and equalize

charge voltage settings. Failure to do so can damage the batteries. Verify that the battery charger’s ﬂoat and equalize settings are correct.

• The batteries are temperature sensitive. During extremely cold conditions, a battery’s charge

acceptance is reduced and requires a higher charge voltage. During extremely hot conditions, a battery’s charge acceptance is increased and requires a lower charge voltage. To allow for changes in temperature, the battery charger must be equipped with a temperature compensating system. For 3i+1R shelf systems, refer to the rectiﬁer manual for information about temperature compensation.

• If the batteries appear to be overcharged or undercharged, ﬁrst check for defective batteries

and then verify that the charger voltage settings are correct.

• To ensure optimal performance, inspect the batteries according to the battery manufacturers

recommendations. Check for signs of cracking, leaking, or unusual swelling. Some swelling is normal.

• Check the battery terminals and connecting wires. Periodically clean the battery terminal con-

nectors and retighten them to the battery manufacturer's torque speciﬁcations. Spray the terminals with an approved battery terminal coating such as NCP-2 or No-Ox.

• Verify that the polarity of the cables are correct before connecting the batteries to the power

module. The polarity is clearly marked on the batteries. The battery breaker will trip and the rectiﬁers may be damaged if the cables are connected with the wrong polarity.

1.4 Utility Power Connection

Connecting to the utility must be performed by qualiﬁed service personnel only and must comply with local electrical codes. The utility power connection must be approved by the local utility before the installation.

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1.5 Equipment Grounding

To provide a ready, reliable source of backup power, the power system must be connected to an effective grounding and earthing system. The grounding system must be designed to protect both personnel and equipment.

WARNING!

Low impedance grounding is mandatory for personnel safety, critical for the proper operation of the system, and must be in place and connected to the system before the supply cables are connected.

1.5.1 Safety Ground

The safety ground is a two-part system – the utility service ground and the power system ground.

Utility Service Ground

As a minimum requirement for the protection of equipment, the local utility service must provide a low-impedance path for fault current return to Earth. This must meet or exceed the requirements of the US National Electrical Code or the Canadian Electrical Code.

Power System Ground

The power system ground consists of a low-impedance connection between the enclosure and an Earth Ground, which must be located at least six feet away from the utility earth connection.

1.5.2 Lightning Strike Ground

Lightning strikes, grid switching, or other power surges on the power line and/or communications cable can cause high-energy transients that can damage the power or communications systems. Without a low-impedance path to the ground, the current will travel through wires of varying impedance, which can produce damaging high voltages. The best method to protect the system from damage is to divert these unwanted high-energy transients along a low-impedance path to the ground.

See section "2.2 System Components" on page 13 for a description of the surge suppression modules installed in the AMPS24 HP.

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2. Product Description

The Alpha Modular Power System 24 HP (AMPS24 HP) is a unique, high performance AC power system that is designed to provide highly reliable back-up power to cable headend, telecom or server room facilities.

The AMPS24 HP features hot swappable 1.5 kVA/1.2 kW AC power modules and optional 1.8 kW rectiﬁer modules that are the building blocks of a highly reliable power system with 99.999% availability, 93% efﬁciency, and high power density. A smart, uniﬁed controller with an integrated Ethernet/SNMP monitors and manages both AC power modules and rectiﬁer modules through a remote web-based GUI. The AMPS24 HP is designed for installation in a climate-controlled environment where ambient temperatures are between 0°C to 50°C (32 to 122°F).

2.1 Theory of Operation

AMPS modules feature a revolutionary high performance technology that combines the high reliability of a telecom-grade inverter system with the high efﬁciency of a UPS.

Each AMPS module includes a reliable 48VDC-to-120VAC inverter as well as an AC-to-DC rectiﬁer. When AC Mains is available, AC power is converted to a high voltage DC bus, which is then converted back to AC. In this high performance (HP) mode, AMPS delivers fully conditioned, lineregulated telecom-grade AC power with 93% system efﬁciency.

Mains

DC In

CAN bus external

communication

When AC Mains is unavailable, DC battery power is converted to AC with zero transfer time. An intelligent high voltage DC bus decides when to draw power, and how much power to draw, from AC or DC source. During AC input brownout condition, output power is supplemented by battery power.

In case of a fault, advanced DSP controls allow the AMPS module to isolate itself, while the rest of the system continues to power the load (with reduced output).

DSP

Dual redundant

communication and

synchronization

between modules

Telecom Grade

AC Output

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Boost

Mains

DC In

CAN bus external

communication

AMPS modules also have a ‘Boost’ over-current feature with 10 times the rated current capacity for 20ms, allowing it to trip breakers downstream, thus protecting the load.

2.1.1 AC or DC input priority

The user can choose either AC or DC input priority. If AC priority is chosen, the AMPS24 HP acts more like an on-line, double conversion UPS. If AC commercial power is available, this power is ﬁltered twice and passed to the AC output. If the AC commercial power fails, the DC converter simply takes over and supplies the power from the batteries.

DSP

400 Vdc

Telecom Grade

AC Output

Dual redundant

communication and

synchronization

between modules

If DC priority is chosen, AMPS24 HP acts more like an Inverter with AC bypass function. Normally, power is drawn from the batteries. If DC power fails, the AC-DC converter takes over, still providing regulated and ﬁltered power to the load.

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2.2 System Components

The AMPS24 HP is made up of a number of individual subsystems designed to work together to provide highly reliable, ﬁltered power in support of the load. A typical system contains the following:

Figure 1 — AMPS24 HP System Components

1. Inverter AC Input Breaker: Main disconnect for AC input

2. Internal Maintenance B ypass Switch (MBS) (optional): Can be used to route power directly

from the AC input to the AC output, bypassing the inverter modules.

3. Inverter AC Output Breaker: Serves as the main disconnect for the inverter AC outputs.

4. Graphic display touch screen: Connected to the CXCU controller by cable (see ﬁgure)

5. RJ45 cable connector: Front panel connection for cable from the CXCU to the Graphic display

6. CXCU Uniﬁed System Controller with integrated Ethernet / SNMP: Monitors and manages

both inverter and rectiﬁer modules through a web-based GUI (only 1 per unit).

7. DC Input Breakers: Individual DC input breakers for each shelf.

8. 4i or 3i+1R shelves: Up to four shelves for installing up to four hot-swappable AIM 1500

modules OR three AIM 1500 modules plus one 1800W rectiﬁer per shelf.

9. AIM 1500 Modules: Up to 4 AIM 1500 per 4i (4 x inverter modules) shelf or up to 3 AIM 1500

per 3i+1R (3 x inverter modules and 1 x rectiﬁer module) shelf.

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10. Rectiﬁer Modules (opt ional): Up to one rectiﬁer per shelf. The rectiﬁers are used as the charging component of a 3i+1R shelf system.

11. Fuse for the graphic display for the CXCU, and V+/ V- to the controller

12. Fuse for customer use 2A load, pins #5 and #6 on 8-pin terminal strip—see section 2.3.1 on page 15.

13. Surge Suppression Modules (behind removable panel) built into the power distribution panel to protect equipment from damage caused by surges and high transient voltages. The surge suppression modules, shown in Figure 2, short to ground any unwanted voltages above a safe threshold.

2.3 Rear Components

AC and DC wiring are accessed from the rear of the unit. See Chapter 5 for details.

A 3i+1R shelf system (one rectiﬁer and three AIM1500 modules) has AC rectiﬁer fuses that protect the system from a wiring fault. Remove the back cover of the AC Wiring panel to access the fuses.

Figure 2 — Surge Suppression Modules

Remove grey cover to change rectier fuses

Figure 3 — AMPS24 HP rear view (with protective covers removed)

AC distribution

panel

DC distribution

panel

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2.3.1 User Interface

On the side of the unit are two connectors. The eight-pin terminal strip is an interface to the AMPS24 with the pinouts listed in Table A. The 40-pin connector is an interface to the CXCR controller with the pinouts listed in Table B. Some pins are available for customer use.

8-pin terminal strip

To install wires

in the 40-pin

connector, use

needle-nose pliers

to remove the ter-

minal blocks in the

40-pin connector.

40 pin connector

Figure 4 — Eight-pin terminal strip and 40-pin connector pin locations

Table A — Eight-pin Terminal Strip from AMPS 24

1 TVSS2 alarm

2 Input circuit breaker (CB6) alarm

Factory installed

wiring

Customer

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3 Maintenance bypass switch alarm

4 Output circuit breaker (CB5) alarm

7 Fused DC-: 3A, CXCU LCD, V- to controller (fuse location shown in Figure 1)

8 DC+: CXCU LCD, V+ to controller

5 Fused DC-: up to 2A load, (fuse location shown in Figure 1)

6 DC+

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Table B — Pinouts for 40 Pin Connector Interface to CXCR

1 DIN1 2 DIN2 Output circuit breaker CB5

3 D_COM Fused DC- 4 DIN3 MBS

5 DIN4 6 DIN5 Input circuit breaker CB6

7 D_COM Fused DC- 8 DIN6 TVSS

Not Used

9 N/A 10 N/A

11 N/A 12 N/A

Analog Inputs

13 V1+ 14 T1+

15 V1- 16 T1-

17 I1+ 18 T2+

19 I1- 20 T2-

Relay Contacts (rated at 60VDC or 42V AC, 0.5A)

From the factory, the Cordex controller is congured with the relay assignments shown below. The relays can be unassigned from their factory conguration and remapped. For example Relay 2, K2, can be unassigned from LVD #2 then remapped as an alarm relay. Refer to the Cordex controller manual for details.

21 K1_NO

LVD #1

25 K1_COM 26 K2_COM

27 K3_NO

LVD #3

31 K3_COM 32 K4_COM

33 Not installed 34 Not installed

35 K5_NO

Power System

Major alarm

39 K5_COM 40 K6_COM

22 K2_NO

28 K4_NO

36 K6_NO

Battery temperature probe

(Figure 6)

Battery temperature probe

(Figure 6)

LVD #223 K1_NC 24 K2_NC

Power System Minor alarm29 K3_NC 30 K4_NC

AC Mains High/Low alarm37 K5_NC 38 K6_NC

2.4 Low Voltage Battery Disconnect (Optional)

A built-in AMPS24 shutdown cuts off the load during a lengthy power outage.

Installing an LVD (Alpha part number 020615-20), between the AMPS24 HP and the batteries, disconnects the AMPS24 HP from the batteries to prevent further drain of the batteries during a lengthy power outage.

The controller is conﬁgured with a relay assigned to LVD #1. Figure 5 shows how to wire the normally closed contacts of the LVD #1 relay to activate the LVD. The activation value is set in the Controls >LVD Control menu—see the controller software manual.

Pinouts available at the AMPS24 40 pin connector – see Figure 4 and (Table B.

LVD#1 K1 Relay

-48V@Pin 3

AMPS24 HP

Pin 21

Pin 25

LVD

Pin 23

Batteries

Figure 5 — LVD wiring

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2.5 Battery Temperature Probes

Adjusting the battery’s ﬂoat or equalize voltage to correspond with temperature ﬂuctuations ensures maximum battery performance and life expectancy.

The CXC’s built-in automatic temperature compensation function adjusts the system every ten minutes as the temperature changes and changes the voltage by a maximum of 0.1 V during this interval.

A battery probe from a single string can be connected to pins #18 and #20 of the AMPS24 HP 40-pin connector. Figure 6 shows the connection of two battery probes where pins #14 and #16 are used for the second probe.

Connection Procedure

1. Use needle nose pliers to remove the terminal

block.

2. Connect the battery temperature probes,

3. To calibrate the temperature probes, refer to

Analog Signal Calibration in the CXCU manual or to the alpha website (www.alpha.ca): Technical

Documentation > Method of Procedures > Cordex > Controller > Calibration – Temperature (web interface).

4. Complete the Batteries > Battery Properties

parameters to enable the Temperature

Compensation feature. The Battery Properties window contains information provided by the battery manufacturer.

Figure 6 — Battery temperature probes

5. Set up temperature compensation in Batteries > Conﬁgure Batteries—see Figure 7.

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Figure 7 — Batteries > Configure Batteries

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2.6 Network Requirements

The CXCU has a single Ethernet port on its front panel for communication with either the graphic display or a laptop.

Cable that connects the CXCU to the

graphic display

Figure 8 — Cable connection to CXCU for graphic display

CXCU RJ45 connection

2.6.1 Single Connection

The graphic display, which uses a browser to launch CXC web pages, is installed in the DC distribution shelf (see Figure 1). This display connects to the Ethernet port on the front of the CXCU.

To use a laptop to conﬁgure the system, disconnect the graphic display cable from the RJ45 jack on the CXCU (Figure 8). Connect the laptop to the RJ45 jack with an Ethernet crossover cable.

CXCU installed

in AMPS24 HP shelf

Ethernet

connector

Ethernet

connector

Figure 9 — Single network connection to CXCU

Graphic Display

http://10.10.10.201/

Obtain an IP Address Using DHCP

Use the following IP Address

IP Address:

10. 10. 10. 202

Subnet Mask:

255. 255. 255. 0

Default Gateway:

PC running IE8.0

or Firefox

Application SettingsCXC Connection SettingsIP Protocol SettingsConnection Status

Cancel Apply

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Page 21

2.6.2 Multiple Connections

Since the CXCU controller only has one port, a switch must be used for the following requirements:

• Simultaneous display at the graphic display and a local laptop

• Local display at the graphic display and remote Simple Network Management Protocol (SNMP) /

Ethernet functionality

Alpha Technologies has tested the Netgear JFS516 network switch, but network switches with the following functionality will work:

• Network Interface: RJ-45 connector for 10BASE-T or 100BASE-TX Ethernet interface

• Meets IEEE 802.3i 10BASE-T Ethernet, IEEE 802.3u,100BASE-TX Fast Ethernet

• Meets IEEE 802.3x Flow Control; compatible with Windows®

Graphic Display

http://10.10.10.201/

Obtain an IP Address Using DHCP

Use the following IP Address

IP Address:

10. 10. 10. 202

Subnet Mask:

255. 255. 255. 0

Default Gateway:

Application SettingsCXC Connection SettingsIP Protocol SettingsConnection Status

Cancel Apply

CXCU

Ethernet

connector

Remote Network

Access

PC running

IE7.0 or greater

or Firefox

Router or switch

Ethernet

PC running IE8.0

or Firefox

Figure 10 — Multiple network connections to the CXCU

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3. Power Configurations

This section lists the power conﬁgurations available with the AMPS24 system and deﬁnes the terminology used throughout this manual.

3.1 Power System Conﬁguration Terminology

3.1.1 120Vac Single Phase

A single phase system is 120Vac from L1 to N (neutral).

3.1.3 120/240Vac Split Phase

The term 120/240Vac SPLIT PHASE is used throughout this manual to identify the “3-wire/ 2 legs from a single phase supply” conﬁguration shown in Figure 11.

3.1.2 120/208Vac 2-Pole

The term 120/208 2-POLE is used throughout this manual to identify the “2-pole from a 3-phase supply” conﬁguration such as L2 to L3 shown in Figure 12.

120V /0°

120V /180°

Figure 11 — Split Phase from a Single phase supply

120V

240V

208V

3.1.4 120/208Vac 3-Phase

Each phase conductor is 120 degrees out of phase with the other, as shown in Figure 12. All three phases (3-pole) plus the neutral are used.

208V

Figure 12 — 2-Pole from a 3-phase supply

120V

208V

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Page 23

3.2 4i Shelf Systems (No Battery Charger)

The 4i systems, with up to 4 AIM1500 modules per shelf, do not have an integrated 48V charger. The following table shows available conﬁgurations: refer to the section in the last column for more details.

System Part

Number

0260012-201 6kVA 4.8 kW

0260012-203 12kVA 9.6 kW 2 8

0260012-202 (no LCD)

0260012-204 12kVA 9.6 kW 120/208 V 2-phase

0260012-206 24kVA 19.2 kW 4 16

0260012-205 18kVA 14.4 kW 120/208 V 3-phase 3 12 Section 3.7

Max AC

output VA

" " " " " "

Max AC

output power

AC Input and

Output voltage

120 V single phase

120/240 V split phase

# of 4 Inverter shelves

1 4

2 8

Max # of AIM1500 modules

3.3 3i+1R Shelf Systems (Integrated Battery Charger)

3i+1R Shelf Systems have 1 rectiﬁer per shelf and up to 3 inverters per shelf.

System Part

Number

0260011-101 4.5kVA 3.6 kW

0260011-102 9kVA 7.2 kW 2 x 3i+1R shelves 6

0260011-104

0260011-103

0260011-106 18kVA 14.4 kW 4 x 3i+1R shelves 12

0260011-107

0260011-105 13.5kVA 10.8 kW 120/208 V 3-phase 3 x 3i+1R shelves 9 Section 3.7

Max AC

output VA

10.5kVA 8.4 kW 1 x 3i+1R shelf

9kVA 7.2 kW

21kVA 16.8 kW 2 x 3i+1R shelf

Max AC

output power

AC Input and

Output voltage

120 V single phase

120/208 V 2-pole

120/240 V split

phase

# of 3i+1R

shelves

1 x 3i+1R shelf 3

plus 1 x 4i shelf

2 x 3i+1R shelves 6

plus 2 x 4i shelf

Max # of AIM1500 modules

Reference

Section 3.5

Section 3.6

Reference

Section 3.5

Section 3.6

3.4 System Spares

See "Table J — Spare Parts" on page 69.

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Page 24

3.5 120V Single Phase Systems

See the facility planning data sheets for the two conﬁgurations shown below:

• "Table C — 10.5kVA, 9kVA and 4.5kVA, 120V Single Phase 3i+1R Shelf Systems" on page 23

• "Table D — 12kVA and 6kVA, 120V Single Phase, 4i Shelf Systems" on page 24

Conﬁgurations for a Single Shelf

• 4i shelf

• 3i+1R shelf

DC 1

Conﬁgurations for Two Shelves

• two 4i shelves

• two 3i+1R shelves

• one 3i+1R shelf and one 4i shelf

DC 1

DC 2

Phase 1

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Page 25

NOTE:

The recommendations in Table C are for reference only. A registered professional engineer must review and approve or modify these recommendations in compliance with applicable national and local electrical and building codes.

Table C — 10.5kVA, 9kVA and 4.5kVA, 120V Single Phase 3i+1R Shelf

Systems

Models

AC Input Voltage 120V 120V 120V

Full Load AC Input Current (per phase)

AC Input poles & wiring 2w +G 2w + G 2w + G

Wiring 1 pole 1 pole 1 pole

SCCR 2100A 2100A 1600A

Recommended

AC Input

AC input Breaker/fuse

(Note: 2)

Recommended

AC Input Wire size,

90ºC copper (Note 1)

Total AC Output (Max)

AC Output Voltage 120V 120V 120V

AC Output poles & wiring 2w +G 2w +G 2w +G

Wiring 1 pole 1 pole 1 pole

AC Output Current (per Phase) 87.5A 75A 37.5A

NEC 50ºC

CEC 50ºC

AMPS24-1-10.5-H1-i1

#0260011-104

108A 108A 54A

125A 120A 70A

1 1/0 6

1/0 1/0 4

10.5kVA/

8.4kW

AMPS24-1-9-H2

#0260011-102

9kVA/7.2kW 4.5kVA/3.6kW

AMPS24-1-4.5-H1

#0260011-101

Installed Inverter Output Circuit Breaker 100% rated

AC Output

Recommended AC Input Wire size,

90ºC copper (Note 1)

AC Input & Output connection terminals

Doc. #: 0260011-J0 Rev B

100A 100A 70A

NEC

50ºC

CEC 50ºC

Box lugs are rated for both Aluminum and Copper wire, #2/0 to #6 AWG. Fasten clamping screw to 120 in-lbs (14 N-m)

1 1 6

1/0 1/0 4

Page 26

NOTE:

The recommendations in Table D are for reference only. A registered professional engineer must review and approve or modify these recommendations in compliance with applicable national and local electrical and building codes.

Table D — 12kVA and 6kVA, 120V Single Phase, 4i Shelf

Systems

Models

AMPS24-2-12-i2

#0260012-203/202

AC Input Voltage 120V 120V

Full Load AC Input Current (per phase)

AC Input poles & wiring 2w +G 2w +G

Wiring 1 pole 1 pole

SCCR 2100A 1600A

Recommended

AC Input

AC input Breaker/fuse

(Note: 2)

Recommended

AC Input Wire size,

90ºC copper (Note 1)

Total AC Output (Max)

AC Output Voltage 120V 120V

AC Output poles & wiring 2w +G 2w +G

Wiring 1 pole 1 pole

AC Output Current (per Phase) 100A 50A

NEC 50ºC

CEC 50ºC

106A 53A

150A 70A

1 6

1/0 4

12kVA/

9.6kW

AMPS24-1-6-i1

#0260012-201

6kVA/

4.8kW

Installed Inverter Output Circuit Breaker 100% rated

AC Output

Recommended

AC Input Wire size,

90ºC copper (Note 1)

AC Input & Output connection terminals

Note 1:

Note 2:

Inverter AC Input & AC Output connections: Calculations based on full load and charging current, 0.8 derating with 5 current carrying conductors, (L1,L2,L3,2xN) due to possible high harmonic content load. Temperature correction factor for 50C applied.

Maximum AC Utility Service protection feeding the AMPS24 is 150A. Actual supply circuit breaker must be sized appropriately for the supply wire used. Consult your local and national electrical codes. Double neutral is strongly recommended for AC output wiring (and AC input wiring to the MBS) for 3Ф systems with signicant non-linear (ie rectied capacitive) loads. Since the AC input to systems without MBS is power factor corrected, AC wiring to systems without MBS does not require double neutral wiring.

100A 70A

NEC 50ºC

CEC 50ºC

Box lugs are rated for both Aluminum and Copper wire, #2/0 to #6 AWG. Fasten clamping screw to 120 in-lbs (14 N-m)

1 6

1/0 4

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Page 27

3.6 120V/240V Split Phase or 120/208V 2-Pole Systems

For facility planning data sheets, see

• "Table E — 21kVA, 18kVA, & 9.0kVA 120/240V Split Phase or 120/208 2-Pole 3i+1R Shelf Systems" on page 26 and

• "Table F — 24kVA & 12KVA 120/240V Split Phase or 120/208 2-Pole 4i shelf Systems" on page 27

Conﬁgurations for Two Shelves

• two 4i shelves (AMPS24-2-12-i2)

• two 3i+1R shelves (AMPS24-2-9-H2)

DC 1

DC 2

Conﬁgurations for Four Shelves

• four 4i shelves (AMPS24-2-24-i4)

• four 3i+1R shelves (AMPS24-2-18-H4)

• two 3i+1R shelves and two 4i shelves (AMPS24-2-21-H2-i2)

DC 1

Phase 1

Phase 2

Phase 1

DC2

DC 3

DC 4

Doc. #: 0260011-J0 Rev B

Phase 2

Page 28

NOTE:

The recommendations in Table E are for reference only. A registered professional engineer must review and approve or modify these recommendations in compliance with applicable national and local electrical and building codes.

Table E — 21kVA, 18kVA, & 9.0kVA 120/240V Split Phase or 120/208

2-Pole 3i+1R Shelf Systems

Models

AC Input Voltage 120/208V or 120/240V 120/208V or 120/240V 120/208V or 120/240V

Full Load AC Input Current (per phase)

AC Input poles & wiring 3w + G 3w + G 3w + G

Wiring 2 pole 2 pole 1 pole

SCCR 2100A 2100A 1600A

Recommended

AC Input

AC input Breaker/fuse (Note: 2)

Recommended

AC Input Wire size,

90ºC copper (Note 1)

Total AC Output (Max)

AC Output Voltage 120/208V or 120/240V 120/208V or 120/240V 120/208V or 120/240V

NEC 50ºC

CEC 50ºC

AMPS24-2-21-H2-i2

0260011-107

118A 121A 61A

150A 150A 80A

2/0 2/0 3

21kVA/

16.8kW

AMPS24-2-18-H4

0260011-106

18kVA/

14.4kW

AMPS24-2-9-H2

0260011-103

9kVA/

7.2kW

AC Output poles & wiring 3w + G 3w + G 3w + G

Wiring 2 pole 2 pole 1 pole

AC Output Current (per Phase) 87.5A 75A 37.5A

Installed Inverter Output Circuit Breaker 100% rated

AC Output

Recommended

AC Input Wire size,

90ºC copper (Note 1)

AC Input & Output connection terminals

NEC 50ºC

CEC 50ºC

Box lugs are rated for both Aluminum or Copper wire, #2/0 to #6 AWG. Fasten clamping screw to 120 in-lbs (14 N-m)

100A 100A 70A

2/0 2/0 3

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Page 29

NOTE:

The recommendations in Table F are for reference only. A registered professional engineer must review and approve or modify these recommendations in compliance with applicable national and local electrical and building codes.

Table F — 24kVA & 12KVA 120/240V Split Phase or 120/208

2-Pole 4i shelf Systems

Models

AC Input Voltage 120/208V or 120/240V 120/208V or 120/240V

Full Load AC Input Current (per phase)

AC Input poles & wiring 3w + G 3w + G

Wiring 2 pole 2 pole

SCCR 2100A 1600A

Recommended

AC Input

AC input Breaker/fuse

(Note: 2)

Recommended

AC Input Wire size,

90ºC copper (Note 1)

Total AC Output (Max) 24kVA/19.2kW 12kVA/9.6kW

AC Output Voltage 120/208V or 120/240V 120/208V or 120/240V

AC Output poles & wiring 3w + G 3w + G

Wiring 2 pole 2 pole

AC Output Current (per Phase) 100A 50A

NEC 50ºC

CEC 50ºC

AMPS24-2-24-i4

0260012-206

106A 53A

150A 70A

2/0 4

AMPS24-2-12-i2

0260012-204

Installed Inverter Output Circuit Breaker 100% rated

AC Output

Recommended

AC Input Wire size,

90ºC copper (Note 1)

AC Input & Output connection terminals

Note 1:

Note 2:

Doc. #: 0260011-J0 Rev B

Inverter AC Input & AC Output connections: Calculations based on full load and charging current, 0.8 derating with 5 current carrying conductors, (L1,L2,L3,2XN) due to possible high harmonic content load. Temperature correction factor for 50C applied.

100A 70A

NEC 50ºC

CEC 50ºC

Box lugs are rated for both Aluminum and Copper wire, #2/0 to #6 AWG. Fasten clamping screw to 120 in-lbs (14 N-m)

2/0 4

Page 30

3.7 120V/208V 3-Phase Systems

For facility planning data sheet, see "Table G — 18kVA and 13.5kVA, 120V/208V 3-Phase Systems" on page 29.

Conﬁgurations for 3-Phase Three Shelf

• three 4i shelves (AMPS24-3-18-i3)

• three 3i+1R shelves (AMPS24-3-13.5-H3)

DC 1

DC 2

DC 3

Phase 1

Phase 2

Phase 3

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Page 31

NOTE:

The recommendations in Table G are for reference only. A registered professional engineer must review and approve or modify these recommendations in compliance with applicable national and local electrical and building codes.

Table G — 18kVA and 13.5kVA, 120V/208V 3-Phase

Systems

Models

AMPS24-3-18-i3

(4i Shelf)

0260012-205

AC Input Voltage 120/208V 120/208V

Full Load AC Input Current (per phase)

AC Input poles & wiring 4 w + G 4 w + G

Wiring 3Ф Wye 3Ф Wye

SCCR 1600A 1600A

Recommended

AC Input

AC input Breaker/fuse (Note: 2)

Recommended

AC Input Wire size,

90ºC copper (Note 1)

Total AC Output (Max) 18 kVA/ 14.4kW 13.5 kVA/ 10.8kW

AC Output Voltage 120/208V 120/208V

AC Output poles & wiring 4 w + G 4 w + G

Wiring

AC Output Current (per Phase) 50A 37.5A

NEC 50ºC

CEC 50ºC

56A 59A

80A 80A

4 4

3 3

3Ф Wye 3Ф Wye

AMPS24-3-13.5-H3

(3i+1R Shelf)

0260011-105

Installed Inverter Output Circuit Breaker 100% rated

AC Output

Recommended

AC Input Wire size,

90ºC copper (Note 1)

AC Input & Output connection terminals

Note 1:

Note 2:

Doc. #: 0260011-J0 Rev B

70A 70A

NEC 50ºC

CEC 50ºC

Box lugs are rated for both aluminum or copper wire, #2/0 to #6 AWG. Fasten clamping screw to 120 in-lbs (14 N-m)

4 4

3 3

Page 32

3.8 AMPS24 HP - Recommended DC Breaker and Wire Sizes

NOTE:

The recommendations in this table are for reference only. A registered professional engineer must review and approve or modify these recommendations in compliance with applicable national and local electrical and building codes.

Maximum wire gauge size is 350 kcmil; 4/ 0 or smaller is recommended, 90°C or better copper only.

Model Recommended minimum DC Breaker

rating (100% rated per feed),

Single DC feed Dual DC feed

AMPS24-2-24 x 300 21.4 kW 480 A

AMPS24-2-21 x 250 18.7 kW 406 A

AMPS24-2-18 x 225 16 kW 333 A

AMPS24-2-9 250 125 8 kW 166 A

AMPS24-2-12 300 150 10.7 kW 240 A

AMPS24-3-18 x 225 16 kW 350 A

AMPS24-3-13.5 350 175 15 kW 250 A

AMPS24-1-10.5 250 125 9.4 kW 203 A

AMPS24-1-12 300 150 10.7 kW 240 A

AMPS24-1-9 250 125 8 kW 166 A

AMPS24-1-6 150 75 5.4 kW 120 A

AMPS24-1-4.5 120 60 4 kW 83 A

Maximum DC Input

Wattage

Maximum DC

Input Current @

48Vdc, full load

Torque speciﬁcations for DC wiring (3/8" bolts that attach the DC lugs at the back of the DC distribution box) are as follows:

• Imperial: 190 – 240 inch/lbs

• Metric: 21.5 – 27.1 N-m

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3.9 How to Conﬁgure Inverters in AC Input Groups, AC Output Groups and DC Input Groups

The following sections show how to distribute the inverters among the phases and also suggests how to distribute the DC input to the inverters.

NOTE:

The groups in the software settings generally correspond to the AC phases or DC inputs.

3.9.1 AC Input Groups/ AC Output Groups

The CXCU System Controller provides an interface to assign inverters to phases (Inverters > Group Mapp ing).

The logical approach is to match the conﬁguration of inverters in the AC Input Group to the conﬁguration of inverters in the AC Output Group as shown.

green

black

red

orange

These groups of inverters can then be monitored as a unit in the View Group Status screen.

Figure 13 — Monitoring AC Input Groups, AC Output Groups and DC Input Groups

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Page 34

3.9.2 DC Input Groups

DC feed from the batteries to the inverters is protected by input breakers. The numbering of each DC input breaker corresponds to the shelf it protects: DC3 input breaker, for example, protects shelf 3. shows a four shelf, split phase system with the breakers and corresponding shelves labeled.

DC3 breaker

DC1 breaker

DC2 breaker

DC4 breaker

DC 1

Phase 1

DC2

DC 3

Phase 2

DC 4

Figure 14 — DC input breakers

Conﬁguration of the DC input

The conﬁguration of the DC input to the inverters provides several different ways to monitor DC input power and input current. Table H provides possible conﬁgurations.

Table H — DC Input Groups

Monitoring DC Source

Bulk Assign all inverters to DC Input Group 1.

Shelf Assign Shelf 1 inverters to DC Input Group 1

Assign Shelf 2 inverters to DC Input Group 2

Assign Shelf 3 inverters to DC Input Group 3

Assign Shelf 4 inverters to DC Input Group 4

Dual Input If the system has two battery strings and makes use of the dual input feature (see 5.3.3):

• Battery 1 string is fed to the inverters through breakers DC1 (shelf 1) & DC3 (shelf 3)

• Battery 2 string is fed to the inverters through breakers DC2 (shelf 2) & DC4. (shelf 4)

To monitor Battery String 1, assign all the inverters in shelves 1 & 3 to DC Input Group 1.

To monitor Battery String 2, assign all the inverters in shelves 2 & 4 to DC Input Group 2.

The number of DC Input Groups (maximum eight) is set in the Inverters > Group

Mapping screen and monitored

as a unit in the View Group

Status screen.

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Page 35

4. System Pre-Installation

4.1 Site Selection

The power system must be mounted in a clean and dry environment.

Consider both the ﬂoor loading and the physical space required for the AMPS24 HP power system and the batteries.

4.1.1 Floor Plan Layout

Sufﬁcient free space must be provided at the front and rear of the power system to meet the cooling requirements of the power system and to allow easy access to the power system components.

Consider the following before selecting a location for the AMPS24 HP power system

• Structure of building able to support the additional weight

• Enough space to meet requirements for access

• Enough space to meet cooling requirements

• Adequate space to do the install

• Route that equipment will take through the building to reach the site

• Check and record distances to load

• Check and record distances to AC power source

• Check and record distances to batteries/DC power source

• Understand the full load on the DC system

• Window for working hours and other similar restrictions

• How much and what kind of prep work can be done in advance

x Reinforce ﬂoors

x Install distribution panels

x Install cable racks

x Run wiring

x Minimize cable lengths (cost)

x Minimize cable ﬂow and congestion

4.2 Recommended Installation Layout

• Minimum clearance front and back for installation and maintenance is 3ft (1m

• Minimum clearance front and back for for air ﬂow is 1 foot

• Sides, top, bottom: no clearance required

Mount the AMPS24 HP system in 19" or 23" rack that is securely bolted to the ﬂoor.

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Page 36

4.3 Transporting the Cabinet

The cabinet is shipped upright on a 99 cm x 99 cm (39" x 39") pallet.

The height of the rack, including pallet and shipping material is 31" (78.7 cm).

The maximum weight of the AMPS24 rack is 123 kg/ 270 lb (4-shelf fully loaded AMPS24 modules included).

Figure 15 — Shipping dimensions (in inches)

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Page 37

4.4 Unpacking Instructions

1. Remove 4 front screws.

2. Remove the screws that are holding the

AMPS24 against the inner frame of the packaging (the # of screws varies depending on the size of the AMPS24 unit, i.e. 1 shelf vs. 4 shelves).

3. Remove the 6 nails that hold the entire packaging down on the skid (3 nails on each side of the box).

4. Remove entire wooden box up and over the AMPS24.

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Page 38

5. Installation

The AMPS24 is designed for installation in a controlled environment, sheltered from rain, excessive moisture, dust and other contaminants. Mount the AMPS24 HP system in 19" or 23" rack – front or mid-mount – that is securely bolted to the ﬂoor.

The system arrives pre-wired, and the installer is responsible for connecting the following:

• Utility input to the system (120 V line to neutral)

• Chassis and battery return to the reference ground

• Battery strings

• System to the load

5.1 Input/Output Cabling

The illustrations in the following sections show the locations of the AC input and output, and DC connection points:

• Connection points are accessed from the back of the system.

• AC wires enter the cabinet through the AC box at the back (section 5.2).

• DC wires enter the cabinet through the DC box at the back (5.3).

Reference Notes:

The AMPS24 HP system is pre-conﬁgured from the factory for a single AC feed per phase for inverters, an internal maintenance bypass switch, and rectiﬁers if present.

• If the AC input neutral is connected, remove the neutral to ground bonding wire. The neutral to ground wire is provided for systems without AC input connections in which case the inverter output is considered a separately derived source and the AC output neutral must be connected to earth ground.

• In a 3-phase system equipped with an internal maintenance bypass switch and a load with a signiﬁcant distortion power factor, it is strongly recommended to provide the AC input and AC output connection with a double neutral feed. Non-power factor corrected IT power supplies with rectiﬁed-capacitive loads can contain high levels of 3rd harmonics, created in such 3-phase systems. The current in the neutral line can easily be twice the current in the line currents.

The required gauge of the AC input, DC+/DC- input and AC output cabling is determined by the current rating, circuit breaker rating, typical ambient temperatures and the applicable local electrical codes. Typically the AC input and standard AC output is 6 wires (L1, L2, and L3, N, N, G) up to 2/0 THHW or RW90 type cable that connects to the AMPS24 HP system with trade size up to 2.5" conduit.

Refer to the appropriate model in the following sections for speciﬁc AC input and output connection terminal torque speciﬁcations.

• Section "3.5 120V Single Phase Systems" on page 22

• Section "3.6 120V/240V Split Phase or 120/208V 2-Pole Systems" on page 25

• Section "3.7 120V/208V 3-Phase Systems" on page 28

Doc. #: 0260011-J0 Rev B

Page 39

Carefully review the following schematic and notes 1 through 7 before beginning the AC input and output, and DC wiring.

Notes

1. All wiring must be in accordance with applicable electrical codes.

2. A low voltage battery disconnect (LVBD) should be provided with the battery system.

3. Inverter main input must always include a neutral connection.

4. Power and control cables must be in separate conduits.

5. N-G shorting jumper is factory installed for inverter systems only. Remove if AC input neutral is

connected. (Refer to note in Figure 16.)

6. L3 is only used with 3-phase systems.

7. Two independent battery strings can be connected. Tie bars are provided for single or dual DC

feed. (Refer to note in Figure 16.)

Doc. #: 0260011-J0 Rev B

Figure 16 — AMPS24 Power and Battery Connections

Page 40

5.2 AC Wiring

The two ﬁgures below provide both a representation of the AC wiring connections (Figure 17) as well as an actual unit wired for 3-phase AC power (Figure 18).

N out N in

L1 out

L2 out

L3 out

GND out

Figure 17 — AC Wiring connections diagram

Customer connections

GND in

L1 in

L2 in

L3 in

Figure 18 — AC Wiring (shown for 3-phase)

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Page 41

5.3 DC Battery and Ground Cabling

5.3.1 Hardware and Torque Speciﬁcations

The DC wiring is attached with 3/8” hardware (1” bolt, washer, spring washer) and 8 are provided with each AMPS24 system (2 per each of the 4 bolting locations). However, the crimp or lug is not provided.

The crimp/lug can either be on 1” centers with 3/8” or ½” holes, or 1.75” centers with ½” holes only.

Bus bar tie kits for DC- are included to give the installer the option to make a single battery connection or two separate battery connections (A/B feeds).

Torque speciﬁcations for DC wiring (3/8" bolts that attach the DC lugs at the back of the DC distribution box) are as follows:

• Imperial: 190 – 240 inch/lbs

• Metric: 21.5 – 27.1 N-m

5.3.2 DC Battery Wiring – Single Feed

The following ﬁgures show a unit wired for single feed with two battery strings in parallel.

DC minusTie Bar

NOTE: the wire lugs shown are for illustration only. They are not supplied with the equipment.

DC plus

GND

To MGB

+ +

– –

GND

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AMPS24 HP

Figure 19 — Single feed, parallel battery strings

Page 42

5.3.3 DC Wiring Dual Feed – with Tie Bar

The following ﬁgure shows a unit wired for dual feed with two battery strings in parallel.

NOTE: the wire lugs shown are for illustration only. They are not supplied with the equipment.

Tie Bar

DC minus Feed 1

DC minus Feed 2

DC plus Feed 1

DC plus Feed 2

Ground

+ +

To MGB

– –

AMPS24 HP

Figure 20 — Dual feed, two battery strings in parallel

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5.3.4 DC Battery Wiring with Independent Dual A/B Feed

CAUTION!

Dual feed provides capacity sharing, but NO REDUNDANCY. The loss of one battery string will result in the loss of half the inverters.

DC minus Feed 2

DC plus Feed 2

DC minus Feed 1

DC plus Feed 1

GND GND

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+ +

To MGB

– –

AMPS24 HP

Figure 21 — DC battery wiring with independent dual A/B feed

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5.4 DC Ground

5.4.1 Inverter Only Systems

Ground reference is at the DC source, as shown in Figure 22

– –

DC Plant

MGB

Figure 22 — DC ground, inverter only systems

5.4.2 Inverter plus Rectiﬁer System

Refer to Figure 19 and Figure 20.

AMPS24 HP

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5.5 AMPS24 HP with External Maintenance Bypass Switch

An external MBS switch allows the entire AMPS24HP system to be taken ofﬂine for maintenance. Figure 23 shows the logical interconnections. It is not a detailed representation of the actual system wiring.

Figure 23 — Representative system wiring for AMPS24 HP system with MBS

5.5.1 External MBS Installation

Install and test the MBS before beginning installation of the AMPS24 HP system.

1. Install the MBS according to the instructions in the MBS installation manual.

2. Place the bypass switch in both BYPASS and UPS and test the continuity at the dedicated AC

distribution panel (see Figure 23).

5.6 Generator Automatic Transfer Switch

An on-site Automatic Transfer Switch (ATS) for a generator (see Figure 23) must meet either of the following requirements:

• Uses an open-transition transfer switch that has a minimum open time of one second for a re-

transfer from generator to utility or from utility to generator testing, or

• If the transfer is less than one second, then ATS monitors phase angle and will only initiate a

transfer if the two sources are within +/-30 degrees of synchronization.

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5.7 Commissioning the System for the First Time

Tools Required

The following tools are required to commission the AMPS24 HP system for the ﬁrst time:

• Medium ﬂat screwdriver with approximately 3/8" (5 mm) blade width

• True RMS digital multimeter

• Computer with Ethernet port and Internet Explorer 7 or later

• Crossover Ethernet cable if a computer is directly connected to the CXCU controller

• Straight through Ethernet cable if the network connections are made through a router or hub

• Torque wrench

• 3/8" hex driver

WARNING!

The AMPS24 HP must have no power (utility breaker OFF and locked out) and no modules installed prior to start-up.

Before you begin:

1. Verify that the AMPS24 HP system is mechanically secured to the rack or other structure.

2. Verify that the clearances around the AMPS24 system meet the minimum requirements (see 4.1).

3. Ohm-test the AC and DC bus bars to check for any shorts caused by cut wires, loose bolts, washers and other conductive material. If possible do Megger testing.

4. Verify that the AMPS24 HP system is correctly and securely grounded to the building grounding system.

5. Verify that the AMPS24 HP system is correctly and securely connected to the utility and batteries:

a. For the battery connections, follow the manufacturer's recommendations and record the

torques.

b. For the AC connections, torque 2/0 to 14 AWG wire to 120 in-lbs (14 N-m).

c. Triple check the polarity of the battery connections.

6. If this is a 3i+1R shelf system that includes rectiﬁers for charging, verify that all rectiﬁer modules are removed.

7. Verify that all breakers at the external load distribution box are switched OFF.

8. Refer to "Figure 1 — AMPS24 HP System Components" and verify that the following breakers are OFF

• AC Input circuit breaker

• Inverter AC Output circuit breaker

• DC breakers

9. Place the internal maintenance bypass switch (MBS) in INVERTER mode.

10. If a Generator is installed, verify that the transfer switch has a minimum 1 second switching delay or that the transfer is always in phase (+/- 30 deg). (After the installation is complete, see 10.2.3 to set the conﬁguration parameter for Walk-in mode.)

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Starting-up the system

11. Switch on the AC mains/utility power.

12. Refer to illustration "AC Wiring" on page 38 and verify the AC input

voltages at the AC wiring terminals:

System Voltage Value

ALL Neutral to Earth Ground ~0V

3 phase L1 to L2, L2 to L3, L3 to L1 ~208V

Neutral to L1 / L2 / L3 ~120V

2-pole L1 to L2 ~208V

Neutral to L1 / L2 ~120V

Split Phase L1 to L2 ~240V

Neutral to L1 / L2 ~120V

13. Check that the battery polarity is correct.

14. Turn on the AMPS24 DC Input breakers for each installed shelf.

15. Switch on the external battery breakers or complete the fuse circuit.

16. Verify that the system starts up and that the controller switches on:

the controller display initializes with three LEDs blinking while a selftest runs for 15 seconds. (Ignore any alarm conditions indicated by the bottom two LEDs.)

Figure 24 — Controller

The graphic display shows the correct DC voltage.

Figure 25 — Controller default home screen

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Connecting a laptop

17. If you prefer to use a laptop to connect to the CXCU controller, refer to section 2.6.1 in this manual and “Establishing a Network Connection via a Crossover Cable” section in the Cordex Controller Software manual.

Installing One Seed Module per Phase

You are now going to conﬁgure the system with just one inverter per phase. Position each inverter in the same shelf position per phase.

Phase 1

Phase 2

Figure 26 — Placement of initial inverters (shown for split phase system)

18. Install only one inverter "seed module" per phase according to the instructions in Figure 28 and Figure 29 on page 47.

19. Switch on the inverter AC input breaker on the AMPS24 HP front panel.

20. Verify that the AC input LEDs turn on for each module. The LEDs may ﬂash in different colors but this behavior is not a cause for concern.

AC input LED

Install ONLY ONE INVERTER PER PHASE. Position it in the right most slot of the top shelf for each phase.

Figure 27 — Inverter module showing AC input LED

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Insertion/ Removal instructions for Inverter Modules

See below for detailed module insertion/removal instructions. You may not want to close/lock the grill at this time because the module may have to be removed at a later stage.

CAUTION!

Improper installation or removal of modules can break latching components.

Unlock

Insert a at head screw driver into the center ap notch and pry open the center ap. Then pull out the module by pulling on the center ap with both hands.

Figure 28 — Unlocking and locking an inverter module for removal or insertion

Lock

Leave the module plastic front grill in the open/unlocked position, then slide/push the module all the way into the module slot, and then close the ap.

1. Place module into shelf.

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2. Press module into place and ensure connection is engaged.

Figure 29 — Inserting and removing an inverter module

3. Close cover and snap module into place. If the cover does not close easily, repeat Step 2.

Page 50

21. Use the CXCU GUI as follows to verify that the modules are recognized and the voltages and currents of the modules are displayed. (Ignore any alarms at this point. The current readings at no load are not very precise.)

a. Select Inverters > View Live Status.

b. In the Inverter Report screen, locate the module for AC phase 1 by clicking each row until

the LEDs of the inverter, in the ﬁrst phase 1 shelf, ﬂash for a few seconds.

c. Using the pull down box in the Module Number column, set the module number to 1 to

correspond to AC phase 1.

d. If this is a multiple phase system,locate the module for AC phase 2 by clicking each row in

the Inverter Report screen until the LEDs of the inverter, in the ﬁrst phase 2 shelf, ﬂash for a few seconds.

e. Use the pull down box to set the module number to 2 to correspond to AC phase 2 (for split

phase, 2-pole and 3 phase systems).

f. Repeat for a third module (select 3 to correspond to AC phase 3) if the system is 3 phase.

step

Figure 30 — Inverters > View Live Status

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22. Now that the inverter modules in each shelf have a number, use the controller to place one

module in each of the AC input and output groups:

a. Select Main Menu > Inverters > Group Mapping.

b. Turn the inverter modules OFF by clicking the power icon Turn All Modules Off. The green

power icons turn black in a few seconds.

c. Match AC Input Groups to AC Output Groups by conﬁguring the modules to the groups as

shown in Figure 31.

d. DO NOT TURN THE INVERTERS BACK ON. PROCEED WITH T HE NEXT STEP.

Conguration Setting

Single Phase

Split Phase

(120/240V)

2-Pole (120/208V)

3-Phase

Figure 31 — Matching AC Input Groups to AC Output Groups

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23. Select Inverters -> Set Output to set the number of inverters in each phase of your system. Match the AC input phase to the corresponding AC output phase.

a. Number of Modules: Enter the total

number of inverter modules that will be installed for that phase.

b. Redundancy: Enter the number of

inverter modules that will provide redundant power for that phase (used to provide system warnings).

c. Phase Shift: Enter the phase shift for each output group in your system conﬁguration

Single phase ° 0 N/A N/A

Split phase (120/240 V) ° 0 180 N/A

2-pole (120/208) ° 0 120 N/A

3-phase (120/208 V) ° 0 120 240

d. Nominal Output Voltage: Enter 120 for all phases.

e. Press Submit.

CAUTION!

Figure 32 — Set Output (Split Phase System)

1 2 3

The value entered in the Nominal Output Voltage eld can change the actual AC output voltage of the inverters. Setting this value to anything other than 120 V will render the UL/ CSA approval invalid.

24. DO NOT PROCEED if there are alarms (Inverters > View Live Status). Alarm code (41) PHASE NOT READY and/or (175) AC OUT NOT SYNCHRONIZED indicate that the phase rotation of the AC Input is not correct. (The inverters will not start until the phase and rotation are correct.) To remove the alarm, return to Inverters -> Set Output and correct the phases as shown:

1 2 3

2-pole (120/208 V) ° 0 240 N/A

3-phase (120/208 V) ° 0 240 120

25. If the alarms do not clear, go back to step 20 and repeat all steps.

Validating the inverter conﬁguration

26. Select Main Menu > Inverters > Group Mapping.

27. Turn the inverters on by clicking the power icon Turn All Modules On (see Figure 31).

28. Switch on the Inverter AC output breaker on the front panel of the AMPS24 HP.

29. Check the actual Inverter AC Output by measuring voltages on the AC Output terminal block in the AMPS24 HP wiring compartment:

a. The voltage from Neutral to L1 / L2 / L3 is approximately 124 V. At no load, the inverter output

voltage is slightly higher than nominal.

b. The voltage from L1 to L2 is approximately 240 V for a split phase system, 208 V for 2-pole,

or the voltage from L1 to L2, L2 to L3, L3 to L1 is approximately 208 V for a 3 phase system.

c. The voltage from AC Input L1 to AC Output L1 is less than 30 V. Similarly, the voltage

between L2 input and output and L3 input and output should be less than 30 V.

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WARNING!

Use blanks to cover any open module slots. Do not leave any module slots open.

Safe solution. Blanks must be used to cover any open module slots.

Figure 33 — Inserting blanks in open slots

Installing remaining inverters and rectiﬁers

30. Install the remaining inverters. The newly installed inverter modules will clone themselves to be

identical to the initial modules that were installed and set up.

31. Select: Inverters > V iew Live Status at the CXCU GUI, and verify that all inverters are

recognized as follows:

a. At this point the inverter module numbers are likely random, with the largest possible inverter

number being 32 corresponding to the total number of inverter slots.

Renumber the inverter modules in some logical pattern, such as from the bottom shelf up, using Inverters > View Live Status to locate and number each module (see Figure 30).

9 10 11 12

5 6 7 8

1 2 3 4

b. We recommend that you identify each physical inverter model with its corresponding inverter

number. To help identify a speciﬁc Inverter, click on the inverter row in the View Live Stat us screen and the LEDs of that inverter will ﬂash for a few seconds.

Unsafe solution. Do not leave any module slots open.

c. Select: Inver ters > Group Mapping and verify that all inverters are mapped to the correct

AC Input Group and AC Output Group. If necessary, match the AC Input Group to the AC Output Group, as shown in Figure 31.

d. Map inverters to DC Input Groups as discussed in section 3.6.2.

32. If the system includes the rectiﬁer option:

a. Install one rectiﬁer module per shelf (see Figure 1 for location) according to the instructions

in the rectiﬁer shelf manual that ships with the unit.

b. Select: Rectiﬁers > View Live Status and verify that all rectiﬁers are recognized.

33. Use blank housings to ﬁll slots without modules. See Figure 33.

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Final conﬁguration and test

34. Using the CXCU controller web interface, conﬁgure any other parameters as required. Typical changes could include battery and charging values for the rectiﬁers in a 3i+1R shelf AMPS24 HP system or changing the low and high voltage AC and DC warning and cutout limits.

35. At this point there should be no alarms present. Investigate and correct any alarm issues.

a. You will see a “communication” alarm if the number of installed inverters does not match the

number of modules set in the Inverters > Set Output screen.

b. Refer to the Troubleshooting Chapter 8 for other alarms.

36. Test the functionality of various module alarms and controls as follows:

Test Expected result

Turn the bypass switch to BYPASS.

Turn off the Inverter AC Input breaker.

Turn off the Inverter AC Output breaker.

Verify the number of modules is correct in Inverters -> Set Output.

Pull out one inverter module.

37. Perform a system load test. Power up the equipment, one at a time. If possible, add heater or light bulb loads to increase the load temporarily.

Bypass Mode Active alarm.

Inverter AC Input Breaker alarm and no change in AC output

voltage

Inverter AC Output Breaker Off alarm and power to loads is off

Inverter Comms Lost alarm

38. Turn off the inverter AC input breaker to perform a full load test from DC power.

WARNING!

To prevent electrical hazards such as short circuits, ensure that the system is free of debris such as metal lings, screws, etc., after the installation is complete.

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6. System Operation

6.1 CXCU Controller Operation

The CXCU software controls the DC + AC power system. The following sections provides a brief overview of the controller with respect to operation of the AMPS24 HP; in-depth information can be found in the current operations manual for the Cordex Controller Software.

6.1.1 Human Interface

The graphical user interface (GUI) is available through a remote web interface or directly at the unit if a graphic display is installed. Refer to section 2.6 for network options. Refer to the software manual to set up network connections.

6.1.2 Startup

When the CXCU is powered-up or reset, it ﬁrst performs a 15 second self-test as it boots up. The scrolling pattern of the three front-panel LEDs indicate start-up is in progress.

When the self-test is ﬁnished, the LEDs extinguish and Controller home screen (Figure 34) appears.

Inverters >

View Live

Status

Number of Acquired

Rectiers

Rectiers >

View Live

Status

Inverter Mode

= DC to AC

conversion

Figure 34 — CXCU system controller home screen

Number of

Acquired Inverters

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6.1.3 Menu Navigation

Clicking any of the Home Screen icons results in a login screen.

Login with your own name. Anyone denied access will know you’re logged on. The time you spent logged in will also show up in the events log.

Use one of the default passwords shown to the right. Refer to the software user manual for permissions associated with each password.

6.1.4 Resetting the Controller

From the main menu

Default Passwords:

Viewer 0000

User 5678

Supervisor 1234

To reset the controller, select Controller > Reset from the main menu and follow the instructions on screen.

From the controller front panel

The controller front panel has two reset buttons – both are recessed and require a stylus or pen to press the initiate the reset.

The upper reset button has two modes of operation. When pressed momentarily, the unit beeps twice and then the microprocessor resets. The LEDs ﬂash as the CXC performs a selftest before returning to normal operating mode. To reset the IP address, press and hold the front panel reset button for three seconds. The unit will beep three times, reset the IP address to 10.10.10.201 and disable DHCP. The settings are saved and the unit resets.

If the controller is hung up, a hard reset can be initiated by pressing the lower reset button.

Soft reset button

Hard reset button

Figure 35 — CXCU controller

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6.1.5 Customizing the User Interface

To customize alarm, signal and relay labels for your speciﬁc application, select Logs and Files >

Manage Editable Text Files to change the text strings.

The following example shows how to revise a text string on the Home page; in this example, the string Load Current is changed to Inverter DC Input Current.

Choose the label category from the

drop-down menu.

Locate the text string on the left

and edit it in the box on the right.

Figure 36 — Editing the user interface text.

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6.2 Inverter monitoring and control

The Inverter menu category consists of inverter alarms, signals and settings. Parameters can be accessed such as the number of acquired inverters, output voltage/power, and source position.

Other features include: input source, inventory update,inverter locate, group assignment, inverter ﬁrmware upgrade, major and minor alarms.

6.1.6 View Live Status inverter report

The menu category View Live Status generates a report of all acquired inverters in the system.

Selecting a row sends a locate command. The LEDs of the selected inverter will blink momentarily.

Figure 37 — Inverters > View Live Status interface

A pull down menu allows re-assignment of the inverter module number in the report: to correspond with its physical location on the shelf, for example.

Selecting a module number that is already used will swap the numbering of the two modules.

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6.2.1 Set Output

Verify that the Phase Shift is set correctly before mapping inverters in the new groups and turning them on.

Figure 38 — Set Output window

CAUTION!

Number of modules:

Amount of Redundancy:

Phase shift:

The value is the number to be acquired by the CXCU. An invalid setting will result in an alarm condition: Inverter Comms Lost; i.e., the number of modules must agree with the actual number of inverters mapped to that particular group.

Number of inverters considered redundant

Assign a phase shift (in degrees) to the AC output group

1 2 3

Single phase 0 N/A N/A

Split phase (120/240 V) 0 180 N/A

2-pole (120/208 V) 0 120 N/A

3-phase (120/208 V) 0 120 240

If the actual phase rotation of the AC Input is not 1 – 2 – 3 (i.e. it may be 1 – 3 – 2), alarms will result. See NOTE below.

Nominal Output Voltage

Sets the target output AC voltage and must be used with caution; the devices connected to the inverters could sustain damage due to irregular AC voltage.

NOTE:

Alarm code (41) PHASE NOT READY and/or (175) AC OUT NOT SYNCHRONIZED indicate that the phase rotation of the AC Input is not correct. (The inverters will not start until the phase and rotation are correct.) To remove the alarm, return to Inverters -> Set Output and correct the phases as shown:

1 2 3

2-pole (120/208 V) ° 0 240 N/A

3-phase (120/208 V) ° 0 240 120

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6.2.3 Group Mapping

Ensure phases are conﬁgured correctly in the Set Output menu before mapping inverters into groups and turning them on.

All inverters must be turned OFF to enable the AC Output Groups radio buttons.

Power Buttons – Use with caution. Shown turned off (black) to congure inverters for AC Output Groups,

Figure 39 — Group Mapping window (shown for a two phase system)

Changing the radio style buttons (rows) will take time to apply changes; for example, approximately two seconds for one inverter and up to ten seconds for the maximum number of inverters (32).

6.2.2 View Group Status

Displays the operating parameters per group – AC Input, AC Output, and DC Input – that are set in

Inverters > Group Mapping.

Figure 40 — Group Status window

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6.2.4 Set Inputs

Figure 41 shows the default conﬁguration input parameters

Figure 41 — Set Input window

6.2.5 General Settings

This submenu of the inverter category provides setting for the following parameters:

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Figure 42 — General Settings window

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6.2.6 Manage Conﬁg File

The inverter settings have their own conﬁguration and are not part of the full site conﬁguration ﬁle. Refer to Chapter 10 for a list of the conﬁguration ﬁle parameters and steps to save the ﬁle and upload it to another system.

6.2.7 Alarms

Standard Inverter Alarms

Alarms for the following conditions can be conﬁgured from the Alarms > Conﬁgure Alarms menu category (refer to the controller software manual for more details on alarm conﬁguration):

Alarm Name Alarm Condition

Inverter Major Fail Count Number of failed Inverters equals or exceeds a user congured threshold

Inverter Minor Fail Count Number of failed Inverters equals or exceeds a user congurable

threshold

Inverter Comms Lost Controller loses communications with any one inverter. The number of

inverters must be correctly identied in the Inverters > Set Output menu.

Inverter AC Input Fail Main AC input of the inverter is lost

Inverter Alarm Any individual or system alarm is detected

Figure 43 — Configure alarms window

Custom Inverter Alarms—Mapping Alarms to Relays

Custom inverter alarms can be mapped through the digital inputs to available relays. Refer to the latest version of the CXCU Controller software manual.

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Alarms reported by T2S are reported in the event logs.

Figure 44 — T2S alarms in event logs

6.2.8 Retrieve Inverter History File

A new submenu Retrieve History File under Inverters opens a page with a Save Inverter History File button to download the inverter alarm history le to local disc. These history les can be used by service people to troubleshoot inverter alarms.

Figure 45 — Retrieve alarm history file

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6.2.9 Signals

The Inverter Signals category (under Main Menu > Signal > View Live Status ) displays inverter signals for all of the acquired inverters in the system. These signals can be used for logging and equation building.

6.2.10 Auto DC Priority

Figure 46 — Signals (inverters) window

The inverters can be conﬁgured to switch to DC Priority mode when a custom alarm is tripped. The alarm can be triggered by a digital input such as a signal from an alternative energy source – a fuel cell perhaps that has just switched on. (Custom alarms are conﬁgured from Alarms-> Conﬁgure

Alarms—see section 6.2.7.)

When the custom alarm activates, the CXC automatically switches the inverters to draw from DC power as much as possible. When the alarm is deactivated, the command is sent to return to AC Priority.

Figure 47 — Auto DC Priority

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6.3 Inverter Module Indicators

AC output

DC input

AC input

Output power

Status LEDs

Figure 48 — Inverter module status, power LEDs

6.3.1 St atus LEDs

Inverter Status LED Description Remedial action

OFF No power or forced stop Check AC input

Permanent green Input OK, normal operation None required

Flashing green Inverter OK but conditions are not

within normal parameters

Flashing green/orange alternating Recovery mode after boost

(10 In short circuit condition)

Permanent orange Starting-up mode Wait

Flashing orange Modules cannot start Insert CXCU

Flashing red Recoverable fault Wait or attempt to clear fault condition by

Permanent red Non recoverable fault • Attempt to clear fault condition by

Check upstream and surrounding equipment

Wait for a while

removing and reinserting the module

• Download CXCU inverter alarm logs (see section 10.1)

• Record the alarm(s)

• Send module back for repair

indicator LEDs

Output Power (redundancy not counted)

The output power LEDs (located on the right side of the module’s front panel indicate the amount of power (percentage of rated power) provided by the module. The number of bars that are illuminated combined with whether or not they are on steady or ﬂashing indicate the output power level or overload condition as shown in Figure 49.

Load:

< 5%

Flashing

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5% to 40%

On steady

40% to 70%

On steady

Figure 49 — Output power indicator LEDs

80% to 95%

On steady

100%

On steady

100% Overload

Flashing

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6.4 Rectiﬁer Module

Figure 50 shows the Cordex 48-1.8kW can be used in the AMS24 HP systems to provide battery charging thumbscrew latch that secures the rectiﬁer into the shelf. During normal operation the rectiﬁer is locked into position. A handle (or grip) is incorporated into the front panel to facilitate the removal of the rectiﬁer from the shelf. No special tools are required.

LEDs

Handle

Figure 50 — Cordex 48-1.8kW

6.4.1 Front Panel LEDs

Rectiﬁer status summary

The three LEDs on the front panel show the rectiﬁer alarm, communication fail, and rectiﬁer on/off status.

AC ON The top green LED illuminates when the AC input voltage is within its allowable range. The LED ashes

(~2Hz) when input voltage is outside the allowable range. The AC input voltage is invalid if the AC Mains Low or AC Mains High alarm is active. The LED extinguishes if the AC input fails.

DC ON The middle green LED illuminates when the rectier is delivering power to the load. The LED ashes

when communication is lost. The LED extinguishes when the rectier is off, e.g., when commanded by the CXC.

ALARM The bottom red LED illuminates during an active Module Fail alarm if the module is unable to source

power as a result of any of the following conditions:

Output fuse blown AC mains input fail Module fail (ramp test fail)

High voltage (OVP) shutdown Thermal shutdown Local shutdown

UPF fail No output power Fan fail

Thumbscrew

Latch

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The LED ashes (~2Hz) when a minor alarm is detected if the module's output capability has been reduced or a minor component failure is detected during the following conditions:

VAC meter fail AC foldback Remote equalize

Fan fail Low output voltage High output voltage

Current limit (programmable option)

Temperature sense fail Soft start operation Communications lost

The LED remains extinguished in the absence of an alarm. If the unit output is not connected to a battery or parallel rectier, the LED extinguishes if no AC power is present.

Power limit (programmable option)

High temperature foldback

LED Activity During Software Upload

When a rectiﬁer software upload is in progress, the LEDs behave in a distinctly different way to indicate that new rectiﬁer software is being transferred from the CXC.

When a rectiﬁer data transfer is in progress, all three LEDs ﬂash in a sequence lasting 1.5 seconds. After the last LED has illuminated, the sequence will repeat starting with the ﬁrst LED.

LED Activity During Locate Module Command from CXC

When the Locate Module command has been received from the CXC, the LEDs behave in another distinct fashion that allows the rectiﬁer to be easily identiﬁed among adjacent rectiﬁers.

This state is entered when commanded by the CXC. The LEDs ﬂash in a ping-pong pattern, repeating every two seconds. During a ping-pong pattern, each LED illuminates sequentially. After the last LED is illuminated, each LED is illuminated in a reverse sequence. When the ﬁrst LED is illuminated, the pattern repeats. This effect makes it appear that the light bounces between the ﬁrst and last LED.

6.4.2 True Module Fail Alarm

The power modules have a “true” fail alarm that provides a true indication of the ability of the power module to source current. When the module’s output current drops below 2.5% of the rated output, a low output current condition is detected and the Module Fail detection circuit is activated. This circuit momentarily ramps up the output voltage to determine if the module will source current.

If no increase in current is detected, the Module Fail alarm is activated. The module will test once every 60 seconds for the condition until a current is detected. The output voltage ramping will cease upon detection of current. A minimum 2.5% load is required to avoid the Ramp Test Fail alarm. This can be provided with the parallel system battery. Activation of this alarm could indicate a failed module or a failed load.

NOTE:

IF operating the system without batteries (or with a very light load; below 2.5% of rated output) it is recommended that the ramp test be disabled to avoid nuisance alarms. The Ramp Test feature is enabled/disabled in the Rectiers > Congure Settings menu item.

6.4.3 Heat Dissipation

Each rectiﬁer module is equipped with one front-mounted fan. The fan runs when temperature is above 0ºC (32ºF). The air ﬂow is front-to-rear with the exhaust air exiting at the back. The fan is variable speed. The speed is determined by the heatsink temperature and the load.

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6.4.4 Over Temperature Protection

Each rectiﬁer module is protected against an excessive increase in temperature caused by a component failure or a cooling airﬂow blockage. During over-temperature conditions, the rectiﬁer limits the output power and the output current. If the temperature continues to increase, a shutdown of the rectiﬁer is initiated. The rectiﬁer restarts automatically when the temperature returns to a safe level.

6.4.5 Wide AC Range

A minor alarm is generated when the AC input voltage drops below its allowable limit. The rectiﬁer output power is reduced linearly between 187 Vac and 90 Vac. At 90 Vac, the unit delivers derated output power that is more than 33% of the rated output power.

Below 90 Vac, the module shuts down and restarts only when the AC voltage is greater than 95 Vac. The actualrestart voltage depends on the load current. A reduced load current may allow a restart input voltage as low as 100 Vac.

For voltages above 277 Vac, the power factor and total harmonic distortion may be derated. Up to 312 Vac (320 Vac for the 1.8 rectiﬁer), the rectiﬁer is operational and will not suffer any damage.

6.4.6 AC Inrush/Transient Suppression

To prevent a surge on the AC input line, the inrush current of a rectiﬁer module is limited to the full load steady state line current. Modules are also protected from input lightning and transient surges in accordance with IEEE/ANSI C62.41 Category B3 standards.

6.4.7 Soft Start

A soft start feature is used to eliminate an instantaneous demand on the AC power source. A soft start, sometimes referred to as a “current walk-in”, works by gradually (up to ﬁve seconds) ramping up the current limit from zero to the actual or deﬁned customer setting. The rectiﬁer output voltage is ramped from the minimum voltage to the ﬂoat voltage.

6.4.8 Start Delay

The rectiﬁer modules are equipped with a delay timer to stagger-start a series of modules to prevent excessive loading of generators upon start up. The built-in timer delays the switching on of the module by an interval (up to 120 seconds), which is set in the CXC. A minimum one-second delay is preset to allow the input capacitors to charge.

6.4.9 Current Limit/Short Circuit Protection

The current limit function determines the maximum output current limit of the rectiﬁer module, regardless of the output voltage or power. The maximum output current is limited to a constant value down to a short circuit condition. Current limiting can be used to mate the rectiﬁer output current ampacity to the needs of the load and parallel battery to minimize excessive battery recharge currents.

The rectiﬁer will sustain a short circuit at the output terminals indeﬁnitely. The maximum short circuit current will not exceed 105% of the rated full load current.

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6.4.10 Power Limiting

Each rectiﬁer module is designed to limit the power output to the module speciﬁcation. This enables more current to be supplied at lower output voltages, and allows matching the output power to the demands of constant-power loads often seen in telecom equipment.

This feature may also be used for a faster recharge of ﬂooded batteries paralleled with the load.

NOTE:

The current limiting feature overrides the power-limiting feature.

6.4.11 High Voltage Shutdown (HVSD)

This feature protects the load from over-voltages originating in the rectiﬁers. The offending rectiﬁer module is shut down when a high output voltage condition occurs. The red Alarm (Module Fail) LED illuminates. The module restarts automatically; however, if more than three over-voltage conditions occur within one minute, the module will latch off and remain shut down until it is reset by restarting the rectiﬁer via the CXC.

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7. Preventive Maintenance

This equipment requires regular maintenance. Maintenance must be performed by qualiﬁed service personnel only. Contact Alpha Technologies at 1-888-462-7487 for any assistance with maintenance.

WARNING!

WARNING: HIGH VOLTAGE AND SHOCK HAZARD Use extreme care when working inside the enclosure/shelf while the system is energized. Do not make contact with live components or parts. Static electricity may damage circuit boards, including RAM chips. Always wear a grounded wrist strap when handling or installing circuit boards. Ensure redundant modules or batteries are used to eliminate the threat of service interruptions while performing maintenance on the system’s alarms and control settings.

7.1 Recommended maintenance schedule

Task: Interval

Clean ventilation openings 1-6 month

Inspect all cable connections, re-torque if necessary 1 year

Verify alarm/control settings 1 year

Verify alarm relay operation 1 year

Verify circuit breaker operation 1 year

Battery maintenance 3 months

7.2 Tools and Equipment

Table I — Tools

Required Service /Maintenance Commissioning

Torque wrench X X

#2 Philips screw driver X X

#2 at head screw driver (3/16") width head X

#1 at head screw driver (1/8") width head X

Small at head screw driver (1/16") width head X X

9/16" hex driver X

3/8" hex driver X

7/16" combo wrench X

7/16" at gear ratchet X

9/16" combo wrench X

9/16" at gear ratchet X

11/16" combo wrench X

11/16" at gear ratchet X

6" ratchet extension X

3" ratchet extension X

3/8" ratchet socket X

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Table I — Tools

Required Service /Maintenance Commissioning

7/16" ratchet socket X

7/16" ratchet socket extended neck X

9/16" ratchet socket X

9/16" ratchet socket extended neck X

5/8" ratchet socket X

5/8" ratchet socket extended neck X

10 mm combo wrench X

10 mm at gear ratchet X

3/8" Allen key on a 3/8" ratchet socket X X

3/16" Allen key on a 3/8" ratchet socket X X

Flash light or trouble light X X

Crossover Ethernet cable X X

Straight through Ethernet cable X X

Computer with Ethernet port and Internet Explorer 7 or > X X

True RMS digital multimeter X X

Other Recommended Tools Service /Maintenance Commissioning

Needle nose pliers X

Side cutters X

Wire stripper 10 AWG to 20 AWG X

Exacto knife X

Measuring tape with inches and cm X

Scissors X

Rubber mallet 1-1/4" diameter X

7.3 Spare Parts

Table J — Spare Parts

P/N Part Description

0140004 AIM1500 inverter module, 1500VA/ 1200W, 120VAC

010-621-20-040 1.8kW rectier module for AMPS24 shelf (de-rated to 1150kW for single phase)

741-032-21 Blanking module for inverter or rectier slot

7400026 Inverter fan

747-362-20-000 Rectier fan

018-599-20-040 Cordex Controller CXCU

7400134-001 LCD Touchscreen Display kit w/ Power Supply

7050051-001 LCD Power Supply

543-027-19 CanBus Connector Cable

545-596-10 CAT5 Ethernet Connector Cable

5450196 Connector, Male, 3.81mm pitch, 8pin, Spring loaded, Screw terminals (rear DC wiring panel)

4600050 Rectier Fuse 1/4"x1-1/4",25A, 500Vac, Fast Acting

4600049 LCD Fuse,1/4"x1-1/4", 3A, 250V, Fast Acting, 10kAIC

162-600-19 Surge suppression replacement module, red stripe, Line-Ground, 40kA rating

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Table J — Spare Parts

P/N Part Description

162-601-19 Surge suppression replacement module, green stripe, Neutral-Ground, 40kA rating

0190017 Netgear JFS516 network switch

7.4 Replacing a Rectiﬁer

The Cordex Converter (CXD) Rectiﬁer (CXR) series modules are plug and play. When a rectiﬁer module is added to the system, the CXC will detect and update the inventory automatically.

Replacing an installed rectiﬁer, however, requires a manual Inventory Update at the controller to clear the removed rectiﬁer from its current list of rectiﬁers.

1. To remove a module, rotate the thumbscrew latch 1/4 turn as indicated on the bottom of the faceplate. Grasp handle and pull out, sliding the module away from the rear connectors and out of the shelf.

2. At the controller, initiate an inventory update: Main Menu > Rectiﬁers > Inventory Update. The remaining rectiﬁers are re-acquired.

3. Insert a new rectiﬁer by placing the module on the shelf bottom and sliding the module into the rear connectors (inside of the shelf). Apply pressure on the handles to engage the rear connector in the shelf receptacle.

4. Rotate the thumbscrew latch 1/4 turn as indicated on the bottom of the faceplate to secure the module to the shelf.

The CXC will automatically detect and update the inventory with the new rectiﬁer

7.5 Replacing a Defective Fan—Inverter or Rectiﬁer

Rectiﬁers and inverter modules have internal fans. Failure of a fan generates a Fan Fail alarm.

1. Shut off the unit and unlock the power module.

2. Slide the module out of the shelf.

3. Wait two minutes for the module capacitors to discharge.

4. Disconnect the fan power wires from the module.

5. Note the direction of the airﬂow and remove the fan from the front panel.

6. Install the replacement fan following the preceding steps in reverse order.

7.6 Removing the CXCU Controller

1. To release the CXCU from the shelf, insert a small ﬂat screwdriver in the square hole under the USB port and lift up the lock pin.

2. Pull out the module.

Screwdriver lifting up lock pin.

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7.7 Replacing the Surge Suppression Module

WARNING!

There may still be live parts inside the system and shock hazards may be present throughout this procedure.

At the AMPS24 front panel,

1. Turn off the Inverter AC Input breaker.

2. Remove the wiring access panel.

3. Pull out the surge suppression module.

4. Replace the module with one of the same type.

Green stripe = N-G and Red stripe = L-G

Figure 51 — Surge Suppression Modules

Replacement Module Part Numbers

Alpha Part Number Description

162-600-19 Surge suppression replacement module, red stripe, Line-Ground, 40 kA rating

162-601-19 Surge suppression replacement module, green stripe, Neutral-Ground, 40 kA rating

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7.8 Fuse Replacement

CAUTION!

Risk of Electric Shock and Fire Hazard: replace fuse with the same type and rating.

7.8.1 Rectiﬁer Fuse Replacement

WARNING!

Remove all input AC and DC power to the AMPS24 HP before starting this procedure: set an external bypass switch to BYPASS mode or turn off the AC mains. Disconnect battery feeds.

Refer to "Table J — Spare Parts" on page 69 for the part number of the fuse.

3i+1R shelf systems equipped with rectiﬁers, are protected with fuses that are sized to blow if there is a wiring fault in the system. These fuses (one per 3i+1R shelf) are accessed from the back of the unit, behind the back top panel (see photo in Figure 52). These fuses must be replaced by a qualiﬁed service person.

1. Turn off the Inverter AC Input breakers.

2. Disconnect the battery feeds to the AMPS unit.

3. Remove the top back panel.

4. Remove the grey cover, shown in Figure 52. to access the fuses.

5. Replace the fuse with a fuse of the same rating and type (Alpha part #4600050):

Turn off the Inverter

AC Input breakers

to remove power

from here.

Turn off AC Mains breaker to remove power from here.

4 x rectier fuses on this board

Figure 52 — Rectifier fuses (behind back top panel)

Grey cover

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7.8.2 Replacing the Fuse for the LCD touch screen (for the CXCU)

Refer to "Table J — Spare Parts" on page 69 for the part number of the fuse.

The fuse for the LCD touch screen is located on the front of the DC distribution panel (see Figure 53.

1. Push and turn simultaneously to release the fuse.

2. Replace with fuse listed in Table J on page 69.

Fuse

Figure 53 — Fuse location for LCD touch screen

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7.9 Synchronization with a Maintenance Bypass Switch (MBS)

7.9.1 Internal Maintenance Bypass Switch

Implement the following sequence before switching the unit from bypass mode to inverter mode.

Switching from Bypass Mode to Inverter (On-line)

1. Switch on the Inverter AC Input breaker.

2. Wait for the inverters to synchronize to the line—all status LEDs on the inverters will turn green.

3. Switch on the Inverter AC Output breaker.

4. Smoothly rotate the maintenance bypass switch in a clockwise rotation from BYPASS to

INVERTER.

Figure 54 — Maintenance Bypass Switch

7.9.2 External Maintenance Bypass Switch

Before switching an external MBS from UTILITY mode to UPS mode:

1. Switch on the AMPS24 HP inverter input breaker. Wait for the inverters to synchronize to the line, and for all status LEDs on the inverter modules to turn green.

2. Switch on the AMPS24 HP inverter output breaker.

3. Follow the steps in the external MBS user manual to switch the MBS bypass switch to UPS.

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8. Troubleshooting

8.1 Non Recoverable Error

Inverter status LEDs

8.1.1 Inverter

The status LEDs illuminate solid red when a non recoverable error occurs. As a result of its double input port, the AMPS24 HP inverter module will stop when either the output stage is non-recoverable or when both input stages are faulty.

• Attempt to clear fault condition by removing and reinserting the module

• Download CXCU inverter alarm logs (see section 10.1)

• Record the alarm(s)

• Send module back for repair

Output power status LEDs

8.2 Recoverable Error

A recoverable error is a kind of protection that acts when some parameters temporarily deviate from their acceptable operating range. Stopping the module or removing it from its slot and plugging it back in may solve the problem.

Use the graphic display or web interface to view the inverter alarms: Inverters > View Live Status.

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All alarm codes are listed in Table K including the following codes. They are listed here to provide further information.

No Ethernet Communication

For a direct connection to the CXCU, verify the following:

• A cross-over cable is installed

• Wireless connection is turned off

Verify the settings of the local area network connection as follows:

1. In Windows®, select the Start menu, Control Panel, and then select Network Connections.

2. Right-click on the icon for the Local Area Connection (to be used by the laptop computer) and then select Properties.

3. Make sure Internet Protocol (TCP/IP) is checked; highlight it and then select Properties.

4. In the Internet Protocol (TCP/IP) Properties screen, check the radio button beside Use the

Following IP Address and enter or verify the following information:

• IP address: 10.10.10.202

• Subnet mask: 255.255.255.0

5. Click OK to close each window opened thus far.

6. At the CXCU GUI, reset the CXCU by selecting Main Menu > Controller > Reset.

7. Click OK when the reset warning pop-up window appears.

Phase Not Ready (Alarm Code 41)

Phase Not Ready alarm happens when the inverter thinks it should be in a certain phase and the input to it is another phase. This can be corrected either by changing the input wiring to the AMPS24 HP or by changing the phase in the group mapping settings screen (see section "6.2.1 Set Output" on page 57).

System Saturated (231)

The System Saturated alarm defaults to 80% load on the non-redundant inverters. To remove this alarm, add more inverters or reduce the number of redundant units in Inverters > Set Output.

AC Mains Lost (232)

The AC Mains Lost happens when the AC input does not meet the correct voltage, phase, or frequency. When the AC main is lost the UPS goes into inverter mode. This alarm sometimes is accompanied by other alarms.

AC Secondary Source Lost (233)

The AC Secondary Source Lost alarm appears for either of the following events:

• Removal of DC from the system

• Incorrect settings in the group mapping screen

Refer to sections 6.2.2 and 6.2.3 to view and modify the group mapping.

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Manually Off (83)

The Manually Off alarm occurs when one or more inverters have been turned off in the Group Mapping screen.

Black indicates the inverter is off.

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Table K — Inverter Alarm Codes

Alarm Type Description Cause Solution

Error Not Recoverable

0 NO ERROR No error present on the

system

1 FAN FAILURE Failed fan or speed

inappropriate

2 TEMP TOO LOW Measured temperature

inside the module is below

-20°C

3 FLASH FAILURE Internal software is

corrupted

4 Vref FAILURE Internal voltage reference is

out of range

5 ALIM AUX1 FAIL Internal 15V supply is out of

range

6 ALIM AUX2 FAIL Internal -15V supply is out

of range

7 TOO MANY

STARTS

8 OVERCURRENT

OUT

9 Vint TOO LOW Intermediate voltage has

10 Vint TOO HIGH Intermediate voltage has

11 Vout PI2 ERROR Error in the self-test during

12 Vout MPI2

ERROR

Too many starts in 1 minute ( 10 times in 1 minute)

The AC output current has been too high for too long

been too low

been too high

the starting process

Error in the self-test during the starting process

N/A N/A

Dust on FAN or FAN failure Replace fan or clean it

The temperature sensor Replace the module. Wait for

temperature to increase

Replace the module

This problem usually happens when the input source is not powerful enough to supply the load. The inverter has a correct DC voltage and starts. After it has started, the power taken on the input source is too important and the DC voltage falls under the minimum and the inverter stops. After 10 attempts to start, the inverter stops. The aim of this error is to avoid a situation in which the inverter keeps starting and stopping.

Problem with IGBTs or current sensor or output stage. This can also happen in very harsh surge conditions.

Many causes Reset the module and try

The most likely cause is that energy has been reinjected into the module (by the load, if the Acout has been shortcircuited with the grid)

This can be caused by a problem on the IGBTs

Correct the problem : increase the input power, reduce the load, increase the voltage hysteresis… Then, turn the module OFF to clear the error and back ON (or, if you have no access to the supervision, unplug and replug the module)

Reset the module and try again. If the problem persists, replace the module

again. If the problem persists, replace the module.

Check if there is a problem around the module which could explain the error. Then, reset the module and try again. If the problem persists, replace the module.

Reset the module and try again. If the problem persists, replace the module..

Reset the module and try again. If the problem persists, replace the module.

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Table K — Inverter Alarm Codes

Alarm Type Description Cause Solution

13 Vout INVERSE Error in the self-test during

the starting process

14 OVRLOAD TOO

LONG

15 OUT FUSE

FAILURE

16 VoutIout TOO

LOW

18 VoutPout TOO

LOW

19 RAM FAILURE Values in the RAM are

33 OUT OF SYNC Inverter is not synchronised

34 TEMP TOO

HIGH

35 COM BUS

FAILURE

36 COM BUS

CONFLICT

37 NO POWER

SOURCE

38 COM BUS

FAILURE

39 PARAM QUERY Inverter is updating his

40 PARAM

MISMATCH

41 PHASE NOT

READY

42 STATUS 42

43 INV MISMATCH Inverter incompatible with

Output voltage too low due overload for a long time

Module is delivering no power to the load while the other module on the same phase does.

Output voltage is too low while the output current is in an acceptable range

Output voltage is too low while the output power is in an acceptable range

corrupt

on other inverters

Temperature on heat sink too high

The inverter doesn't see itself on the bus

2 TSI have same ADX Will self repair

No input AC and DC available on inverter

TSI must have a T2S to start

parameters

Conguration le incompatible with TSI inverter

The phase inverter is not congured for this phase ( multiple phase system)

inverter installed in system

This error happens if the module is not congured on the correct output phase

Load too higher for the inverter quantity operational on system.

Output fuse open / problem in the connection of ACout

Problem inside the module. Reset the module and try

Error recoverable

Problem on the communication bus

Problem inside the module Replace the module

Temperature too high in the room, cooling insufcient, or inverter component defective

Problem on bus or internal problem

No supply voltage Check AC input voltage at AC

Circuit Breaker open Check Circuit breakers

Wiring fault Check input voltage at

No T2S in the system Add a T2S

Part of starting process Nothing to do

Problem with parameters Check conguration le and

AC not present, or phase not congured

Inverter for pack solution. Limitation to 6 inverter on the same BUS

Verify the phase conguration of the modules. Then, reset the module and try again. If the problems still happens, replace the module

Reduce load or add inverter on the system.

Check if the problem can be caused by something external to the module. If not, replace the module

again. If the problems still happens, replace the module

Replace the module

Check bus.

Check temperature inside inverter. Check room temperature. Replace FAN. Replace inverter

Check bus / replace module

input and DC input terminals

re-send it

Reconnect AC IN, congure the inverter phase

Remove incompatible inverter

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Table K — Inverter Alarm Codes

Alarm Type Description Cause Solution

44 BACKFEED

ERROR

45 Vint TOO HIGH Same as error 10 but

65 TSI COM BUS

FAIL

66 T2S COM BUS

FAIL

67 TSI COM BUS

FAIL

68 T2S COM BUS

FAIL

69 LOADSHARING

LOW

70 LOADSHARING

HIGH

71 VOUT

CHANGING

72 OVERLOAD

CURRENT

73 COM BUS

MISMATCH

74 IMMINENT

START

75 BOOSTER NOT

READY

76 OVERLOAD

NOT READY

ACin is supplied by the ACout of the module

recoverable

The inverter doesn't see itself on the bus TSI

The inverter doesn't see itself on the bus T2S

No synch top received on TSI BUS

No sync top received on T2S BUS

The inverter gives less power than other inverters in parallel

The inverter gives more power than other inverter in parallel

Output voltage is changing its nominal value

The load current is greater than the current available from inverter

The modules seen on bus A are different that modules see on bus B

Reported from a stopped module 10 seconds before it is going to start

The boost function is not allowed at this time

The overload function is not allowed at this time

Grid is not present and there is a short circuit between ACin and ACout

Communication problem Hardware problem. Replace

inverter

Communication problem Hardware problem. Replace

inverter

No Sync top from TSI inverter Hardware problem. Replace

inverter

No sync top from T2S inverter

Happens when there is a cong change to the voltagelasts 1 min for a change from 100V to 120V NEVER INSERT A NEW MODULE WHILE THIS IS IN PROGRESS!

Load too high or some inverters are failing.

Alarm- triggered when it sees more or less modules on bus A vs bus B - used to identify a module problem while the module is still running

Start up procedure N/A

Less than 60 second, after previous boost action

Less than 55 second, after previous overload status

Hardware problem. Replace inverter.

This alarm should disappear by itself. If it remains permanent, the module probably has a problem.

N/A

Reduce load or add inverter to the system.

Hardware problem. Replace inverter

Wait 1 minute to recover from the situation

77 TEMP

78 OVERLOAD

79 EEPROM

DERATING

POWER

DEFECT

Temperature measured from the heat sink - 88C for AIM2500 and 70C for AIM2500

The load power is greater than the power available from inverter

The EEPROM has a problem

Heat sink temperature over rating

Requested power greater than available power

Check temperature inside inverter. Check room temperature. Replace FAN. Replace inverter

Reduce load or add inverter on the system.

Replace Inverter

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Table K — Inverter Alarm Codes

Alarm Type Description Cause Solution

80 BROWNOUT

DERATING

81 FAN LIFE

ELAPSED

82 REMOTE OFF Inverters are set to OFF

83 MANUALLY OFF The inverter are manually

160 ACin OK The grid AC is coming back

161 Vac_in too low The input grid is below the

162 Vac_in too high The input grid is upper the

163 ACin IMP too

high

164 STATUS 164

165 Vac_in too LOW The input grid is below the

166 Vac_in too HIGH The input grid is above the

167 ACin NOT

CONFORM

168 ACin NOT

CONFORM

169 ACin NOT

CONFORM

170 STATUS 170

171 ACin NOT

CONFORM

172 ACin THD too

high

173 STATUS 173

174 STATUS 174

175 ACout NOT

SYNC

176 INV NOT SYNC The AC out is not

177 SYNC FAILURE Inverter not synchronized Check synchronization

The nominal power is not available from the AC Grid. The inverter could compensate from DC source.

Fan running time has exceeded preset value to advise fan replacement

remotely

set to OFF.

inside the preset range

preset range

This status appears during the starting procedure of the ACinput stage

preset range

ACin is outside the range AC voltage outside the range

THD grid is outside the allowed value

The AC out is not synchronized with grid

synchronized with grid

AC in below 100V - reduce power from the AC input and pull power from the DC input

Inverter are switch OFF by remote function

Inverter are switched OFF by the OFF function in Hyperterminal

Status AC on Inverter

AC voltage coming back inside the range

AC voltage outside the range Check AC grid and

The module can stay in this status if it can't start. This happens if the power of the AC supply is too low

AC voltage outside the range (RMS value)

(instantaneous value)

THD AC voltage outside the range

Check synchronization between AC in and AC out

between AC in and AC out

Check AC grid and conguration

Replace FAN and reset the counter time

Replace FAN and actualize the counter time

Start inverter by REM ON/ OFF terminal

Start inverter through the Hyperterminal

Nothing to do

conguration

Check AC grid and conguration

Check AC grid THD

Check AC grid and conguration

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Table K — Inverter Alarm Codes

Alarm Type Description Cause Solution

178 STATUS 178

179 Vac_in TOO

LOW

180 Vac_in TOO

HIGH

181 Fac_in TOO

LOW

182 Fac_in TOO

HIGH

183 PHASE NOT

READY

184 BACKFEED

ERROR

189 OVERCURRENT

ACin

191 SCN FAILURE Short-circuit Booster failure The booster (which allows

193 DCin OK Input DC voltage inside the

194 Vdc_in TOO

LOW

195 Vdc_in TOO

HIGH

202 Vdc_in TOO

LOW

203 Vdc_in TOO

LOW

204 Vdc_in TOO

HIGH

210 Vdc_in TOO

LOW

211 Vdc_in TOO

HIGH

The input grid is below the preset range

The input grid is above the preset range

Input frequency is lower than the preset value

Input frequency is higher of the preseted value

Inverter not ready to delivery power on the phase

Same as 44

ACinput Current is too high Surge / hardware problem on

range

Input DC voltage lower than the preset value.

Input DC voltage higher than the preset value.

Input DC voltage lower than the preset value.

Input DC voltage higher than the preset value.

Input DC voltage lower than the preset value.

Input DC voltage higher than the preset value.

Check AC In conguration and live value

Inverter not congured on the phase

ACinput stage

10 Iin on short circuits) has a problem

Status DC on Inverter

Check VDC parameter and live value

Check AC grid and conguration

Reconnect AC IN, congure the inverter phase

Retry / replace module if the problem still happens

Replace inverter

Nothing to do

Check DC from battery and conguration

226 NO

227 DIG INP1

228 DIG INP2

TRANSMISSION

FAILURE

Write "No Transmission" event in log le when the inverter is no longer seen by the T2S.

Generate alarm code 227 and appropriate text when digital input 1 changes state

Generate alarm code 228 and appropriate text when digital input 2 changes state

T2S Event

Alarm from the T2S - does not see any TSI- all modules

- system alarm or when the T2S does not see one of the modules

Digital input has changed status

Replace defective inverter or adapt conguration

Check device connected on input digital

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Table K — Inverter Alarm Codes

Alarm Type Description Cause Solution

229 REDUNDANCY

LOST

230 REDUND + 1

LOST

231 SYS

SATURATED

232 MAIN SOURCE

LOST

233 SEC SOURCE

LOST

234 T2S BUS FAIL Generate alarm code 234

235 T2S FAILURE Generate alarm code 235

236 T2S STARTED Write event "T2S Started" in

237 LOG CLEARED Write event "Log Cleared"

238 CONFIG

MODIFIED

239 NEW MOD

DETECTED

240 DATE & TIME

MOD

241 CFG READ IN

MOD

242 LOG NEARLY

FULL

229 and text "Redundancy Lost" when the condition is true

Generate alarm code 230 and text "Redundancy + 1 Lost" when the condition is true

Generate alarm code 231 and text "Sys Saturated" when the condition is true

Generate alarm code 232 and text "Mains source lost" when the condition is true

Generate alarm code 233 and "Sec Source Lost" when the condition is true

and "T2S Bus Fail" when the condition is true

and text "T2S Failure" when the condition is true

log le when T2S is started (powered up)

in log le when the log is cleared

Write event "Cong Modied" in log le when conguration is modied.

Write event "New Mod Detected" in log le when new module is seen by T2S

Write event "Date & Time Mod" in log le when date and/or time are modied

Write event "Cfg Read In Mod" in log le when T2S had read the conguration le from TSI inverter. Tipically after insterting new T2S on live system.

Generate alarm code 242 and text "Log Nearly full" when the condition is true

Lost of inverter redundancy Replace defective inverter or

adapt conguration

Lost of inverter redundancy + 1 inverter

Load of system greater than the preset value

Priority source lost (depends on the conguration AC/AC or Online)

Secondary source lost (depends on the conguration AC/AC or Online)

The communication bus to T2S has failed

T2S has failed Hard ware problem. Replace

T2S has started

T2S has cleared the log

Conguration is modied

One more module is plugged

Date and time are modied

T2S has read the CFG

This item will be set as, No alarm, Minor or major alarm. (see conguration le)

Replace defective inverter(s) or adapt conguration

Reduce load or add inverter on the system, or change the alarm level trigger.

1) In AC/AC conguration: Reconnect AC IN or check conguration or check live value. 2) In Online conguration: Reconnect DC or check conguration or check level voltage

1) In ONLINE conguration: Reconnect AC IN or check conguration or check live value. 2) In AC/AC conguration: Reconnect DC or check conguration or check level voltage

Hardware problem. Replace T2S

T2S

Clear log le

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Page 86

Table K — Inverter Alarm Codes

Alarm Type Description Cause Solution

243 T2S FLASH

ERROR

Flash of T2S is corrupt and has failed

T2S failure Hardware problem. Replace

T2S

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Page 87

9. System Specifications

100

120

25 30

35 40 45 50 55 60

% VA Load

Ambient Temperature (C)

DC mode Derating

9.1 Power De-rating Due To Altitude

The AMPS24 HP runs at full power up to an altitude of 1500 m, then derates by 8% for every 1000 m of elevation increase. The AMPS24 HP is not designed to operate at elevations above 5000 m.

9.2 Power De-rating Due To Temperature

Doc. #: 0260011-J0 Rev B

Derating alarm

triggered

Actual system

derating occurs

Page 88

9.3 System Speciﬁcations

System AC Input (P/N 0140004)

Nominal Voltage (AC) 120 V

Input Power Factor >99%

Frequency 60 Hz

Synchronization Range 57-63 Hz

System DC Input

Nominal Voltage 48 Vdc

Voltage Range (max) 40-60 Vdc (user adjustable)

Max DC input current @ 48 Vdc 389 A

Max DC input current @ 40 Vdc 467 A

Unied System Controller with SNMP

Control & Monitoring Congure, control and monitor Inverter & Rectier modules

via Internet Explorer 7 and onwards

Display LCD Touchscreen display

OK / Major / Minor 3-color LED display

Web-based GUI via Ethernet

Communication Ports RJ45 Ethernet Port

Controller I/O

Voltage Inputs 0

Temperature Inputs 2

Current Inputs 1

Bivoltage Inputs 0

Digital Inputs 2

Relay Outputs 6

Environmental Specications

Operating Temperature (full load) -20° to 50°C (-4° to 122°F)

Storage Temperature -40° to 70°C (-40° to 158°F)

Relative Humidity Up to 95%, non-condensing

Operating Altitude Up to 1,500 m (4,900 ft) above sea level

Heat Dissipation Per Module 286 BTU/hr in AC-to-AC mode

410 BTU/hr in DC-to-AC mode

Mechanical Specications

No of shelves System Dimensions H x W* x D

mm (in)

*Width with mounting ears 19" rack mount option: 492.8mm/ 19.4" 23" rack mount option: 584.2mm/ 23"

622 x 443 x 432 (24.5 x 17.44 x 17) 52 (115)

533 x 443 x 432 (21 x 17.44 x 17) 45 (100)

444.5 x 443 x 432 (21 x 17.44 x 17) 39 (85)

355.6 x 443 x 432 (21 x 17.44 x 17) 32 (70)

System Weight -- without modules

kg (lb)

Agency Compliance

CSA C22.2 107.3-05

UL UL1778; Issue 4

(shelves and modules)

EMC FCC CFR47 Part 15 Class A; ICES-003

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Page 89

9.4 Speciﬁcations for AIM 1500 Module

General specications:

EMC (immunity) EN 61000-4

EMC (emission) EN55022 (Class A), FCC 47 VFR Part 15, class A

Safety IEC 60950, UL 1778 Issue 4

Cooling Forced Air

MTBF 240000 hrs

Efciency (typical)

AC Input Mode 93%

DC Input Mode 90%

AC Output Power

Nominal 1500 VA

Resistive Load 1200 W

Overload Capacity (short) 150% @ 5 sec

Overload Capacity (permanent) 110%

Nominal 48 V

Range (Vdc) 40 to 60 V

Nominal Current (@40 Vdc) 33 A

Max input current (5 s) 50 A

Voltage Ripple 2 mV

AC Input Specications

Nominal voltage (AC) 120 Vac

Voltage range (AC) 83 to 140 Vac

Power factor > 99%

Frequency range (selectable) 60 Hz

Frequency Tolerance ± 3 Hz (Adjustable)

AC Output

Nominal (AC)* 120 Vac Accuracy 2%

Frequency 60 Hz (Same as input frequency in AC/AC mode)

Frequency accuracy 0.03%

Transient load recovery time 0.4 ms

Transfer Performance

Maximum Voltage interruption 0 sec

Total Transient voltage duration 0 sec

Environmental

Operating Temperature: -20° to +50°C

Storage Temperature: -20 to +70°C

Humidity: Up to 95% non-condensing

Elevation: <1500M

Mechanical

Dimensions H x W x D mm (in): 90 x 101.6 x 317.5 (3.5 x 4 x 12.5)

Weight kg (lb): 2.4 (5.3)

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Page 90

9.5 Speciﬁcations for 48-1.8 kW Rectiﬁer (P/N 010-621-20-040)

Rectier Module Input Voltage, Output Current, Power

AC Input Voltage 3i+1R shelves Max # of Rectier

Modules

120 4 4 150 Adc

120/240 Vac 4 4 150 Adc

Power Module Output

Voltage 42 to 60 Vdc within rated limits

Current 37.5 A maximum @ 48 Vdc (nominal input)

~24 A @ 48 Vdc (115 Vac input)

Power 1800 W maximum @ nominal input

~1150 W @ 115 Vac input (de-rated linearly to 900 W @ 90 Vac)

Static Load Regulation Better than ±0.5% for any load change within rated limits

Dynamic Load Regulation Better than ±2% for 40% – 90% – 40% (50% load step)

[output shall recover to static limits within 10 ms]

Static Line Regulation Better than ±0.1% for any change in input voltage within rated limits

Max DC output

Current (Adc)

Dynamic Line Regulation Better than ±1% for any change in input voltage within rated limits (output voltage

shall recover to static limits within 2ms)

Hold-up Time: >10 ms

Time Stability: =0.2% per year

Temperature Stability: <170 ppm/°C over the operating range

Heat Dissipation: <607 BTU per hour (per rectier module)

Electrical Noise: <32 dBrnC (voice band)

<30 mVrms 10 kHz to 10 MHz (wideband)

<150 mVp-p 10 kHz to 100 MHz

<1 mV (psophometric)

Acoustic Noise: <60 dBa @ 1 m (3 ft.) @ 30°C (86°F)

EMI: FCC Part 15, Class B:

Environmental

Operating Temperature: -40 to +65°C (power de-rated up to 75°C)

(-40 to 149°F) [power de-rated up to 167°F]

Storage Temperature: -40 to +85°C (-40 to 185°F)

Humidity: 0 to 95% non-condensing

Elevation: -500 to +2800 m; to 4000 m with temperature derated to 40°C

(-1640 feet to 9186 feet; to 13124 feet with temperature derated to 104°F)

Mechanical

Dimensions H x W x D mm (in) 90 x 101.6 x 317.5 (3.5 x 4 x 12.5)

Weight kg (lb) 2.8 (6.2)

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Page 91

10. Configuration Parameters

The inverter settings have their own conﬁguration ﬁle which is not part of the full site conﬁguration ﬁle. The default conﬁguration settings, described in the following sections, are presented in a logical manner, but in reality they are one contiguous ﬁle. All available parameters are described in this section, though not all are used in a basic installation.

CAUTION!

Congure parameters with care as mistakes will shut the system down with resulting power loss to the load. Modifying the conguration settings, using a text editor, can have dire consequences and should be undertaken by advanced users only.

10.1 Transferring Inverter Settings to Another System

1. To transfer inverter settings to another system, ﬁrst save the inverter conﬁguration ﬁle to a local

disc (Main Menu > Inverters > Manage Conﬁg File).

2. Then browse to locate the ﬁle and upload it to the system at another site.

Figure 55 — Manage Config File window

10.2 Examples of Modiﬁcations to Conﬁguration Parameters

10.2.1 Changing the Saturation Level Alarm

The saturation alarm threshold is the level of load that generates an alarm indicating there is a risk of overload. This parameter takes into account the redundancy already deﬁned. For example, if a system has 4 modules and 1 is redundant –> 80 % of 3 modules.

1. Save the inverter conﬁguration ﬁle to a local disk (Main Menu > Inverters > Manage Conﬁg File).

2. Open the ﬁle with a text editor.

3. Scroll down to the saturation alarm threshold:

;556; ;Saturation alarm threshold; ;100; ;%;

4. Change the default to desired value in the range 80 to 100%.

5. Save the ﬁle to the local disk.

6. Upload to the inverter system.

7. Save inverter conﬁguration ﬁle to the local disk with a different name than before.

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Page 92

10.2.2 Changing the Synchronization Tracking Speed Operation

This parameter sets the speed with which the module tries to synchronize ACout.

1. Save the inverter conﬁguration ﬁle to a local disk (Main Menu > Inverters > Manage Conﬁg File).

2. Open the ﬁle with a text editor.

3. Scroll down to Synchronization Tracking Speed

;100; ;Synchronization Tracking Speed; ;0; ; ;

4. Change the default to one of the values from the following table:

Value Tracking speed, Hz/sec

-2 2

-1 1

0 0.5

+1 0.25

+2 0.1

5. Save the ﬁle to the local disk.

6. Upload to the inverter system.

7. Save the inverter conﬁguration ﬁle to the local disk with a different name than before.

10.2.3 Changing the Walk-in Mode for Generator Operation

Walk-in mode needs to be set if a generator is used in bypass mode. Walk in mode stops the oscillation that causes DC mode to activate. It allows a progressive comeback, slowly removing DC power while slowly increasing AC power.

1. Save the inverter conﬁguration ﬁle to a local disk (Main Menu > Inverters > Manage Conﬁg File).

2. Open the ﬁle with a text editor.

3. Scroll down to Walk-in Mode

;62; ;Walk-in Mode (0 : No, 1 : Yes); ;0; ; ;

4. Set the parameter to 1.

5. Save the ﬁle to the local disk.

6. Upload to the inverter system.

7. Save the inverter conﬁguration ﬁle to the local disk with a different name than before.

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Page 93

10.3 Global Settings (ID 1 – 50)

;1; ;Number of inverter modules in phase 1; ;4;

;2; ;Number of inverter modules in phase 2; ;4;

;3; ;Number of inverter modules in phase 3; ;4;

x Number of inverters present (Here shown as 4 modules) in each phase

x Range: 0 - 32, Default: 1

x min:0 1 32

x (same value for ACin and AC

;21; ;Amount of redundancy in phase 1; ;1;

;22; ;Amount of redundancy in phase 2; ;1;

;23; ;Amount of redundancy in phase 3; ;1;

x Number of redundant inverters in each phase (Here shown as 1 module)

x Range: 0 - 32, Default: 0

x When no inverter failed = no alarm

x When # of inverters failed ≤ redundancy (if different than 0) = Minor alarm (non urgent)

x When # of inverters failed > redundancy = Major alarm (urgent)

out

)

;40; ;Number of DC input groups; ;1;

x Number of DC input groups

x Range: 1 - 8, Default: 1

x Allows inverters groups to be supplied from sets of batteries that are physically separated

;41; ;Number of AC input groups; ;1;

x Number of AC input groups

x Range: 1 - 4, Default: 1

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Page 94

10.4 Inverter Parameters (ID 51 – 550)

;60; ;Input Source (AC : 0, DC : 100); ;0; ;%;

x Record of priority source

x 0 –> Priority feed from ACin (converter AC/AC - AC/AC mode), Default setting

x 100 –> Priority feed from DC (converter DC/AC - On Line mode)

;61; ;ACin Mode (0 : normal, 1 : Safe); ;0; ; ;

x Opens the ACin inlet relay

x 0 –> Normal running in AC/AC mode, Default setting

x 1 –> ACin inlet relay is open and so the system is insulated from the Mains

;62; ;Walk-in Mode (0 : No, 1 : Yes) ; ;1; ; ;

x Walk-in mode allows a progressive comeback, slowly removing DC power while slowly

increasing AC power

x 0 –> no progressive switching

x 1 –> progressive switching at 10% per second

;70; ;Number of phases ; ;3; ; ;

x Record of number of phases : 1 (Single phase), 2 (2 phase), 3 (3 phase)

x Range: 0 - 8, Default: 1

;71; ;Mode (0 star; 1 Delta) ; ;1; ; ;

x Record of the protection for working on Delta load

x The mode, star or delta, allows conﬁguration of automatic protection when the load is a

delta connection (an engine for instance). This protects the load when 1 phase is lost. The protection consists of switching off all inverters.

x 0 –> no delta load protection, Default setting

x 1 –> Delta load protection available

;75; ;Free running Frequency ; ;50.0; ;Hz;

x Record of the Inverters system frequency, 50 or 60 (default)

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Page 95

;80; ;Short Circuit Voltage Threshold; ;80; ;V;

x Minimum Voltage Threshold where module considers that outlet is in short circuit

x Adjustable from 20 to 100 Vac, default: 80 Vac

;81; ;Short Circuit Hold Time; ;60.0; ; sec;

x Time Duration when the module tries to eliminate the short-circuit existing on the outlet

x When this time expires and the voltage is less than the value on line 80, the module stops.

x Adjustable from 0.1 to 600 sec, default: 60 sec

;82; ;Booster 10 x Iin (0 : OFF, 1 : ON) ; ;1; ; ;

x Turns off the Booster option which generates a current of 10 x Iin for 20ms in case of short-

circuit.

;90; ;Max current (as percentage of nominal current); ;110; ;%;

x Maximum Current that module can supply.

x Adjustable from 100 to 110 % for AIM2500

;91; ;Max power (as percentage of of nominal power) ; ;110; ;%;

x Maximum Power that the module can supply.

x ALWAYS RECORD THE SAME VALUES for 90 and 91

;92; ;Max Overload Duration); ;15; ;sec;

x Maximum Time Duration when module can run with overload.

x Adjustable from 0 to 15 sec, default: 15 sec

;100; ;Synchronization Tracking Speed; ;0; ; ;

x Speed with which the module tries to synchronize AC

out

x Possible values:

Speed Value Frequency (Hz/sec)

very fast -2 2.5

fast -1 1.25

normal (default) 0 0.5

slow 1 0.25

very slow 2 0.1

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Page 96

;101; ;Remote OFF disable ACin Power; ;0; ; ;

x 0 –> Normal mode, default

x 1 –> ACin power is de-activated

;102; ;Negative Power (0 : OFF, 1 : ON); ;1; ; ;

x 1 –> ON, default

;103; ;External clock (0 : OFF, 1 : ON); ;0; ; ;

x 0 no in service protection

x 1 in service protection

;160; ;OUT 1 : phase shift (-180 to 360, default 0); ;0; ;deg;

;161; ;OUT 1 : Nominal Output Voltage (100 to 140); ;120; ;V;

x Record of the phase shift and nominal Outlet voltage.

x Phase shift range: -180 to 360, default: 0 deg

x Nominal output voltage range: 100 to 140, default: 120 V

;170; ;OUT 2 : phase shift; ;120; ;deg;

;171; ;OUT 2 : Nominal Output Voltage; ;120; ;V;

x Record the phase shift and the nominal Outlet voltage.

x Range and defaults same as OUT 1

;180; ;OUT 3 : phase shift; ;240; ;deg;

;181; ;OUT 3 : Nominal Output Voltage; ;120; ;V;

x Record the phase shift and the nominal Outlet voltage.

x Range and defaults same as OUT 1

Parameters for DC Groups

;260; ;DC 1 : Vdc_in Low Start; ;49; ;V;

x Low DC Voltage – a higher value causes the converter DC/AC to re-start

x Range: 39 to 61, default: 49 V

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Page 97

;261; ;DC 1 : Vdc_in Low Transfer; ;42; ;V;

x Low DC Voltage – a lower value transfers the load from DC/AC to AC/AC converter.

x Range: 39 to 61, default: 42 V

;262; ;DC 1 : Vdc_in Low Stop; ;42; ;V;

x Low DC Voltage – a lower value causes the DC/AC converter to stop.

x Range: 39 to 61, default: 42 V

;263; ;DC 1 : Vdc_in High Start; ;58; ;V;

x High DC voltage – a higher value re-starts the DC/AC converter

x Range: 39 to 61, default: 58 V

;264; ;DC 1 : Vdc_in High Transfer; ;61; ;V;

x High DC Voltage – a higher value transfers the load from DC/AC to AC/AC converter

x Range: 39 to 61, default: 61 V

;265; ;DC 1 : Vdc_in High Stop; ;61; ;V;

x High DC voltage – a higher value stops the DC/AC converter.

x Range: 39 to 61, default: 61 V

;270; ;DC 2 : Vdc_in Low Start; ;49; ;V;

;271; ;DC 2 : Vdc_in Low Transfer; ;42; ;V;

;272; ;DC 2 : Vdc_in Low Stop; ;42; ;V;

;273; ;DC 2 : Vdc_in High Start; ;58; ;V;

;274; ;DC 2 : Vdc_in High Transfer; ;61; ;V;

;275; ;DC 2 : Vdc_in High Stop; ;61; ;V;

x The same as Group DC 1

;280; ;DC 3 : Vdc_in Low Start; ;49; ;V;

;281; ;DC 3 : Vdc_in Low Transfer; ;42; ;V;

;282; ;DC 3 : Vdc_in Low Stop; ;42; ;V;

;283; ;DC 3 : Vdc_in High Start; ;58; ;V;

;284; ;DC 3 : Vdc_in High Transfer; ;61; ;V;

;285; ;DC 3 : Vdc_in High Stop; ;61; ;V;

x The same as Group DC 1

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;290; ;DC 4 : Vdc_in Low Start; ;49; ;V;

;291; ;DC 4 : Vdc_in Low Transfer; ;42; ;V;

;292; ;DC 4 : Vdc_in Low Stop; ;42; ;V;

;293; ;DC 4 : Vdc_in High Start; ;58; ;V;

;294; ;DC 4 : Vdc_in High Transfer; ;61; ;V;

;295; ;DC 4 : Vdc_in High Stop; ;61; ;V;

x The same as Group DC 1

;300; ;DC 5 : Vdc_in Low Start; ;49; ;V;

;301; ;DC 5 : Vdc_in Low Transfer; ;42; ;V;

;302; ;DC 5 : Vdc_in Low Stop; ;42; ;V;

;303; ;DC 5 : Vdc_in High Start; ;58; ;V;

;304; ;DC 5 : Vdc_in High Transfer; ;61; ;V;

;305; ;DC 5 : Vdc_in High Stop; ;61; ;V;

x The same as Group DC 1

Synchronization with ACin source

;370; ;AC : Fac_in Low Start; ; 57.3; ;Hz;

x Below this value and above parameter 371, the inverters will try to synchronize with the

ACin frequency

;371; ;AC : Fac_in Low Stop; ;57.0; ;Hz;

x Below this value the inverters will stop trying to synchronize with the ACin frequency

;372; ;AC : Fac_in High Start; ;62.7; ;Hz;

x Above this value and less than parameter 375, the inverters will try to synchronize with the

ACin frequency

;375; ;AC : Fac_in High Stop; ;63; ;Hz;

x Above this value, the inverters will trying stop to synchronize with ACin

Parameters for AC Groups

;380; ;AC 1 : Vac_in Low Start; ;91.5; ;V;

x ACin Voltage where a higher value causes the converter AC/AC to start

x Range: 83 to 143, default: 91.5 V

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Page 99

;381; ;AC 1 : Vac_in Low Transfer; ;81.5; ;V;

x ACin Voltage where a lower value transfers the load from the AC/AC converter to the DC/

AC converter

x Range: 80 to 143, default: 81.5 V

;382; ;AC 1 : Vac_in Low Stop; ; 81.5; ;V;

x ACin Voltage where a lower value causes the AC/AC converter to stop

x It is possible to step down to 150 Vac. In this case, the AC/DC converter runs at a lower

power. The DC/DC converter supplies the rest (ONLY if DC is available, if not, there is a derating)

;383; ;AC 1 : Vac_in High Start; ; 140; ;V;

x ACin Voltage where a lower value causes the AC/AC converter to re-start

;384; ;AC 1 : Vac_in High Transfer; ;143; ;V;

x ACin Voltage where a higher value transfers the load of the charge from the converter AC/

AC to the DC/AC converter

;385; ;AC 1 : Vac_in High Stop; ;143; ;V;

x ACin Voltage where a higher value causes the AC/AC converter to stop

;390; ;AC 2 : Vac_in Low Start; ;91.5 ;V;

;391; ;AC 2 : Vac_in Low Transfer; ;81.5; ;V;

;392; ;AC 2 : Vac_in Low Stop; ;81.5; ;V;

;393; ;AC 2 : Vac_in High Start; ;140; ;V;

;394; ;AC 2 : Vac_in High Transfer; ;143; ;V;

;395; ;AC 2 : Vac_in High Stop; ;143; ;V;

x The same for Group AC 1

;400; ;AC 3 : Vac_in Low Start; ;91.5 ;V;

;401; ;AC 3 : Vac_in Low Transfer; ;81.5; ;V;

;402; ;AC 3 : Vac_in Low Stop; ;81.5; ;V;

;403; ;AC 3 : Vac_in High Start; ;140; ;V;

;404; ;AC 3 : Vac_in High Transfer; ;143; ;V;

;405; ;AC 3 : Vac_in High Stop; ;143; ;V;

x The same for Group AC 1

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Page 100

10.5 Alarm Settings (ID 551-950)

Global Parameters (ID: 551-600)

;551; ;Alarm on prog. relay (255 is NU); ;255; ; ;

x Replace 255 by the Alarm Code you wish for programming the relay user selectable 3

x See previous codes for the T2S and Enclosed list for the TSI.

;553;; ;MAJ relay temporization; ;60; ;sec;

x Temporization of Urgent alarm (from 0 to 65536 sec)

;554; ;MIN relay temporization; ;30; ;sec;

x High DC voltage – a higher value re-starts the DC/AC converter

;556; ;Saturation alarm threshold; ;100; ;%;

x Level of load that generates an alarm indicating there is a risk of overload.

x This parameter takes into account the redundancy deﬁned previously

x I.e. P ex : system with 4 modules with 1 redundant –> 80 % of 3 modules

;558; ;ACin is present (1:true 0:false); ;1; ; ;

x Allow to inhibit the alarm when ACin not Present

x 1 –> gives alarm when main Network is not Present

x 0 –> no alarm when main Network is not Present (AC in not available or Regular inverter)

;570; ;Log near. full thresh. (100-200); ;180; ; ;

x Number of messages in the Logﬁle. It is from the Logﬁle that alarm is generated when the

Logﬁle is about completed.

Conﬁguration o f types of Alarms

- Alarm Type (ID : 601 - 900) : Minor(1) - Major(2) - No Alarm(0)

x Choice for type of alarms as detailed hereafter

x No Alarm = 0 / Minor = 1 / Major = 2

;828; ;227.DIG INP1 FAILURE; ;0; ; ;

x Type of alarms for Digital inlet 1 (Inlet to be conﬁgured by user)

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Alpha AMP24 HP User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1. Safety

1.1 Safety Symbols

1.2 General Safety

1.3 External Battery Safety

1.4 Utility Power Connection

1.5 Equipment Grounding

2. Product Description

2.1 Theory of Operation

2.2 System Components

Figure 1 — AMPS24 HP System Components

2.3 Rear Components

Figure 2 — Surge Suppression Modules

Figure 3 — AMPS24 HP rear view (with protective covers removed)

Figure 4 — Eight-pin terminal strip and 40-pin connector pin locations

Table A — Eight-pin Terminal Strip from AMPS 24

Table B — Pinouts for 40 Pin Connector Interface to CXCR

2.4 Low Voltage Battery Disconnect (Optional)

Figure 5 — LVD wiring

2.5 Battery Temperature Probes

Figure 6 — Battery temperature probes

Figure 7 — Batteries > Configure Batteries

2.6 Network Requirements

Figure 8 — Cable connection to CXCU for graphic display

Figure 9 — Single network connection to CXCU

Figure 10 — Multiple network connections to the CXCU

3. Power Configurations

Figure 11 — Split Phase from a Single phase supply

Figure 12 — 2-Pole from a 3-phase supply

3.2 4i Shelf Systems (No Battery Charger)

3.3 3i+1R Shelf Systems (Integrated Battery Charger)

3.4 System Spares

3.5 120V Single Phase Systems

3.6 120V/240V Split Phase or 120/208V 2-Pole Systems

3.7 120V/208V 3-Phase Systems

3.8 AMPS24 HP - Recommended DC Breaker and Wire Sizes

Figure 13 — Monitoring AC Input Groups, AC Output Groups and DC Input Groups

Figure 14 — DC input breakers

Table H — DC Input Groups

4. System Pre-Installation

4.1 Site Selection

4.2 Recommended Installation Layout

4.3 Transporting the Cabinet

Figure 15 — Shipping dimensions (in inches)

4.4 Unpacking Instructions

5. Installation

5.1 Input/Output Cabling

Figure 16 — AMPS24 Power and Battery Connections

5.2 AC Wiring

Figure 17 — AC Wiring connections diagram

Figure 18 — AC Wiring (shown for 3-phase)

5.3 DC Battery and Ground Cabling

Figure 19 — Single feed, parallel battery strings

Figure 20 — Dual feed, two battery strings in parallel

Figure 21 — DC battery wiring with independent dual A/B feed

5.4 DC Ground

Figure 22 — DC ground, inverter only systems

5.5 AMPS24 HP with External Maintenance Bypass Switch

Figure 23 — Representative system wiring for AMPS24 HP system with MBS

5.6 Generator Automatic Transfer Switch

5.7 Commissioning the System for the First Time

Figure 24 — Controller

Figure 25 — Controller default home screen

Figure 26 — Placement of initial inverters (shown for split phase system)

Figure 27 — Inverter module showing AC input LED

Figure 28 — Unlocking and locking an inverter module for removal or insertion

Figure 29 — Inserting and removing an inverter module

Figure 30 — Inverters > View Live Status

Figure 31 — Matching AC Input Groups to AC Output Groups

Figure 32 — Set Output (Split Phase System)

Figure 33 — Inserting blanks in open slots

6. System Operation

6.1 CXCU Controller Operation

Figure 34 — CXCU system controller home screen

Figure 35 — CXCU controller

Figure 36 — Editing the user interface text.

6.2 Inverter monitoring and control