MGE UPS Systems 3.5 to 21 kVA N+1 manual

3.5 to 21 kV A N+1 Inverter Owner’ s Manual www.mgeups.com[...]

IMPORT ANT SAFETY INSTRUCTIONS SA VE THESE INSTRUCTIONS – This manual contains important instructions for the S4 Inverter Plant that must be followed during operation of the equipment. W ARNING: Opening enclosures expose hazardous voltages. Always refer service to qualified personnel only . A TTENTION: L'ouverture des cabinets expose des ten[...]

NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequen[...]

3.5 to 21 kV A N+1 Inverter page iv This manual covers these models: Product: Rating: 64074 7.0 kV A 120/240 Line to Neutral only 64144 14.0 kV A 120/240 Line to Neutral only 64214 21.0 kV A 120/240 Line to Neutral only 64074H 7.0 kV A 208/240 Line to Line only 64144H 14.0 kV A 208/240 Line to Line only 64214H 21.0 kV A 208/240 Line to Line only 3.[...]

W arranty Information page v Owner ’ s Manual 3.5 to 21 kV A N+1 Inverter Owner ’ s Manual Wa rranty The liability of MGE UPS SYSTEMS, Inc. hereunder is limited to replacing or repairing at MGE UPS SYSTEMS, Inc.’s factory or on the job site at MGE UPS SYSTEMS, Inc.’s option, any part or parts which are defective, including labor , for a per[...]

How T o Use This Manual: This manual is designed for ease of use and easy location of information. To quickly find the meaning of terms used within the text, look to the Glossary . To quickly find a specific topic, look at the T able of Contents. This manual uses Note lines and icons to convey important information. Note lines and icons come in fou[...]

CAUTION: Record All Serial Numbers page vii Owner ’ s Manual CAUTION RECORD ALL SERIAL NUMBERS FOR THE S4 INVERTER AND COMPONENTS. THESE SERIAL NUMBERS WILL BE REQUIRED IF YOUR SYSTEM NEEDS SER VICE. KEEP THIS MANUAL IN A PLACE WHERE YOU CAN REFERENCE THE SERIAL NUMBERS IF SER VICE IS REQUIRED! S4 INVERTER UNIT SERIAL NUMBER: ____________________[...]

(This page left blank intentionally) 3.5 to 21 kV A N+1 Inverter page viii[...]

page c —i Owner ’ s Manual Contents description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page IMPORT ANT SAFETY INSTRUCTIONS . . . . . .Inside Front Cover W arranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .v Revision History . . . . . . . . . . . . . . . . . . . . . .[...]

Section 2 Installation and Operation (continued) section description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 2.5.2 DC Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5 2.5.3 DC Input Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5 2.5.4 Con[...]

Contents page c —iii Owner ’ s Manual Section 3 Maintenance Adjustment and T roubleshooting section description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 3.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2 3.1 Safety Instructions for Servicing . . . . . . . . .[...]

Figures figure description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 1-1 System Configurations. (N+1 = added redundancy) . . . . . . . . . . . 1-2 2-1 Installation Drawing, 7 kV A Inverter System . . . . . . . . . . . . . . . . .2-2 2-2 Front View , 7 kV A, System Component Description . . . . . . . . . . .[...]

W ARNING: A n A C output will be present at the output terminals immedi- ately when AC input is energized. A TTENTION: La tension alternative de sortie appara ît dès la mise sous ten- sion de l'entrée. W ARNUNG! Eine Ausgangsspannung liegt an den Ausgangsklemmen, sobald der Netzeingang angeschlossen wird. 1.0 Scope This manual provides tech[...]

1.1 General Description This static, modular inverter system series provide stable, distortion-free AC power from a DC input source at a selectable output voltage and frequency prior to shipment, for sensitive equipment. With a built-in static transfer switch, the inverter also forms a reliable and economical part of uninterruptible power supply sy[...]

Introduction page 1 — 3 Owner ’ s Manual T able 1-2: Inverter Module Dimensions. Inverter Module HEIGHT (in/cm) DEPTH (in/cm) WIDTH (in/cm) WEIGHT (lb/kg) 64004-9MSK1 5.18 / 13.16 15.12 / 38.4 15.76 / 40.03 46 / 20.86 Note: Weight: Six-mod receiver = 135 lbs. (61.2 kg) 1 UPS Module = 46 lbs. (20.09 kg) T otal System Weight, 21 kV A system = 41 [...]

Efficiency 85% minimum, 88% typical (on-line mode); 97% typical (off-line mode) at full kV A/Watt load. Power Factor Rated kV A is available over a power factor range of 0.6 lagging to 0.6 leading at nominal volt- age. W att rating should not be exceeded. To tal Harmonic Distortion Less than 1% for linear load conditions, 3% maximum for crest facto[...]

Introduction page 1 — 5 Owner ’ s Manual 1.5 Environmental Specifications Operating T emperature All models operate to specifications from -5°C to +50°C (+23°F to +122°F) for alti- tude up to 3,300 feet (1006 Meters), and -5°C to 35°C (+23°F to + 95°F) for up to 13,300 feet (4054 Meters). Shipping T emperature -40°C to +75°C (-40°F t[...]

(This page left blank intentionally .) Introduction 3.5 to 21 kV A N+1 Inverter page 1 — 6[...]

IMPORT ANT : Equipment is factory set to operate at 120V AC for Line to Neutral and 240V AC for Line to Line units. Please read installation procedure to configure for Line to Neutral and 240V AC for Line to Line units other configurations. 2.0 Scope This section describes installation of the inverters, including receiving, handling, and storage pr[...]

2.3 Mechanical Mounting The equipment can be floor mounted or rack mounted in a 19” (48.3 cm), 23” (58.4 cm), or 25” (63.5 cm) rack. Optional mounting bracket kits can be ordered for rack mounting in a 25” (63.5 cm) or 26” (66.0 cm) rack. All receivers and inverter power modules are shipped separately from the factory . Receivers will be [...]

Installation & Operation page 2 — 3 Owner ’ s Manual Figure 2-2: Front View , 7 kV A, System Component Description. 2.3.1 Location The equipment is designed for installation in a protected environment. Factors to be considered in selecting a loca- tion include ventilation, temperature, humidity , and accessibility . Install the unit in a cl[...]

2.4 Wiring Connections Line to Neutral Units Note: For Line to Line units please skip to section 2.7, page 2—10. 2.4.1 Grounding For safety and proper operation of the unit, including maximum attenuation of electrical noise, suitable grounding is required. A separate grounding electrode conductor should be connected from the safety ground (GND) t[...]

Installation & Operation - Line to Neutral page 2 — 5 Owner ’ s Manual 2.5.2 DC Input Normal: -48VDC Operating Range: -39.5 VDC to -57VDC This system is designed for battery systems with the positive terminal Earth Ground. All DC breakers are in the negative DC lines. The system DC terminals are isolated from Earth Ground. 2.5.3 DC Input Ci[...]

Figure 2-3a: Static Switch Section - Input and Output Wiring. Installation & Operation - Line to Neutral 3.5 to 21 kV A N+1 Inverter page 2 — 6 BA TTER Y (+) BA TTER Y (-) GND L-OUT L-IN N-OUT N-IN GND AC & DC CONNECTIONS ST A TIC SWITCH SECTION IND[...]

Installation & Operation - Line to Neutral page 2 — 7 Owner ’ s Manual 2.5.4 Connections All DC input connections are made through the knock-outs, located in the top or left side panel. Refer to Figure 2- 1. Make sure that the upstream source DC circuit breaker and AC circuit breaker (if applicable) supplying the invert- er are in the off ([...]

The utility input and output cables are connected to a screw type terminal block. Connect the ground wires first, then the neutral wires, then connect the AC input wire (if applicable) and the AC output wire. A separate, optional Maintenance Bypass unit and a Power Distribution panel (200A Square D “QO” type of circuit breakers) are avail- able[...]

Installation & Operation - Line T o Neutral page 2 — 9 Owner ’ s Manual 2.6 Software Configuration Set-Up The factory default configurations of the inverter plant is: 120V , 60Hz, Utility voltage connected and Mode of oper- ation is Online. If the factory configuration is different, the inverter will ship with marking that will describe the[...]

2.6.3 Unit kV A Rating ID Label For kV A rating see the inverter ID label. Use the label kV A rating, regardless of the number of inverter modules installed. The processor will detect and display the number of modules installed and the number of modules that are “ON” and operating without fault. MGE is offering the 7, 14, and 21 kV A rating. 2.[...]

Installation & Operation - Line T o Line page 2 — 11 Owner ’ s Manual 2.7 Wiring Connections Line to Line Units Note: For Line to Neutral units continue to section 2.11, page 2—17. 2.7.1 Grounding For safety and proper operation of the unit, including maximum attenuation of electrical noise, suitable grounding is required. A separate grou[...]

2.8.3 DC Input Circuit Breaker Due to tremendous amounts of short circuit current available (in excess of 1000A for as long as several minutes!) from bank(s) of batteries, that supply electrical power to inverter systems, it is extremely important to connect a properly sized DC circuit breaker at the DC input cable that feeds the inverter system. T[...]

Installation & Operation - Line T o Line page 2 — 13 Owner ’ s Manual Figure 2-6a: Static Switch Section - Input and Output Wiring. BA TTER Y (+) BA TTER Y (-) GND L1-OUT L1-IN L2-OUT L2-IN GND AC & DC CONNECTIONS ST A TIC SWITCH SECTION[...]

2.8.4 Connections All DC input connections are made through the knock-outs, located in the top or left side panel. Refer to Figure 2- 1. Make sure that the upstream source DC circuit breaker and AC circuit breaker (if applicable) supplying the invert- er are in the off (or open) position. DC input power cables should be sized such that the maximum [...]

Installation & Operation - Line T o Line page 2 — 15 Owner ’ s Manual Figure 2-7: Line T o Line Setup Screen. After the selections are complete, click on the Save button. The data will be sent to the appropriate address in the controllers “EEROM”. Remove the applied 48VDC to the system by turning off the main DC feed circuit breaker . 2[...]

2.10 Redundant Controller Set-Up After making sure the 48VDC power has been removed from the unit, remove the two Phillips head screws from the display panel as above. Re-install the top controller printed board that was previously partially removed. Using the circuit board retaining bracket, disengage the bottom controller board from its connector[...]

Installation & Operation page 2 — 17 Owner ’ s Manual 2.1 1 Indicators and Controls There are six LED indicators divided into three groups – DS1 and DS2, DS3 and DS4, DS5 and DS6 - on the dis- play front panel. DS1 and DS2 are indicators of controller A; DS3 and DS4 are indicators for controller B; DS5 and DS6 are for output capacitors fu[...]

Installation & Operation 3.5 to 21 kV A N+1 Inverter page 2 — 18 Figure 2-9: S4 Inverter Components. Disconnect AC (Mains) and DC supply before removing this cover. WARNING: DC supply before removing this cover. Disconnect AC (Mains) and WARNING: REMOVING MODULE ! OPEN BREAKER BEFORE WARNING! DC INPUT GREEN = NORMAL YELLOW = WARNING RED = FAU[...]

Installation & Operation page 2 — 19 Owner ’ s Manual 2.12 Remote Alarm The system provides three alarm signals, namely , Utility alarm, Minor alarm, and Major alarm. ◗ Utility alarm – Utility alarm is ON when utility input voltage is lost/out of tolerance. ◗ Minor alarm – The system sends out this signal to indicate something is no[...]

2.13 Start-Up Sequence Confirm that all power modules’ ON/OFF circuit breakers are set to the OFF position. On the LCD “Display” panel, be sure inverter switch SW1 is set at ST ANDBY position. 2.13.1 Power-Up Procedure T urn the main source DC input circuit breaker ON to apply 48VC to the system. The “controller” boards and LCD “Display[...]

Owner ’ s Manual Maintenance Adjustment and T roubleshooting Maintenance Adjustment and T roubleshooting page 3 — 1 CAUTION: T roubleshooting the static inverter should be done only by qualified electronic technicians. Connecting and disconnect- ing the input and output power conductors in the course of troubleshooting should be done in accorda[...]

3.0 Scope This section describes the maintenance and service of the S4 Inverter , including safety instructions, preventive maintenance, descriptions of replacement kits, and a troubleshooting table. 3.1 Safety Instructions for Servicing IMPORT ANT SAFETY INSTRUCTIONS FOR INVERTER SERVICING SHOULD BE PERFORMED OR SUPER- VISED BY QUALIFIED PERSONNEL[...]

page 3 — 3 Owner ’ s Manual 3.3 Equipment Adjustment and Calibration The equipment is factory adjusted and, normally , no further adjustments and calibration are required. However , in the course of repair , components may have to be changed that will require configuration of the equipment. These configurations should only be made by a qualifie[...]

3.7 Replacement Parts MGE offers a complete spare parts kit for each model number . Spare parts kits include the inverter modules. Parts (those included in the spare parts kit) can be ordered individually or as a complete parts kit. T o order on individual part, give the full description along with the complete model number and serial number of the[...]

page 3 — 5 Owner ’ s Manual 3.8 Redundant Microprocessor (72-153588-00) Installation/Configuration Follow this procedure to replace or add a microprocessor board to the S4 Inverter . Only one microprocessor can be configured at a time. T o configure a microprocessor , install only that microprocessor board in the inverter receiver . The redunda[...]

3.9 T roubleshooting and Servicing Should you encounter a problem in the operation of the inverter and need MGE Systems to service your equipment, it is recommended to leave the unit in its current state. Record message (if any) and color signals on the LCD dis- play and LED indicators on the display panel, then call MGE Customer Support Services a[...]

page 3 — 7 Owner ’ s Manual 3.1 1 T roubleshooting Guide After having thoroughly reexamined the installation and setup of the system, and still found it un-operational, user can follow T able 3-2 to identify a problem, its cause, and recommendations for fixing it. T able 3-2: T roubleshooting table. Problem Possible Cause Possible Solution Disp[...]

3.5 to 21 kV A N+1 Inverter page 3 — 8 (This page left blank intentionally) Maintenance Adjustment and T roubleshooting[...]

Symbols Definition/Meaning @ At. / And/or . +/- Plus or Minus. ≤ Equal to or less than. # Number . °C Degree Celsius. °F Degree Fahrenheit. Ø Phase angle. Ω Ohm; unit of resistance. ®T rade Mark. 2nd Second. ABC Normal sequence of phase (clockwise) in three-phase power . AC or ac Alternating current, also implies root-mean-square (rms). Amb[...]

BYP ASS See “Static T ransfer switch”. Bypass Maintenance bypass; wrap-around manual maintenance bypass using the optional bypass cir- cuit breaker Q3BP in conjunction with circuit breaker Q4S and isolation circuit breaker Q5N. Bypass AC Input Mains 2. BYP ASS mode See “off-line mode”. Carrier The company or individual responsible for deliv[...]

GND Ground (safety). Hz Hertz, frequency measurement unit, 1Hz is one cycle per second. Inverter mode See “on-line” mode. I Current. IEC International Electrotechnical Commission. IEEE Institute of Electrical and Electronic Engineers. Input branch circuit The input circuit from the building power panel to the equipment. Inverter An electrical c[...]

NO. or No. Part number . NO Normally open. Online mode Inverter output power is the primary energy source to load. Offline mode Inverter output is off, and the load connected at the inverter output receives power from utility line via a static transfer switch or maintenance bypass relay . OSHA Occupational Safety and Health Agency . PCA Printed cir[...]

Reorder form 1660 Scenic A venue Costa Mesa, CA 92626 to order additional copies of this document, or to report any errors, omissions, or other problems you have experienced. NAME COMP ANY __________________________________________________________________ STREET ADDRESS ___________________________________________________________ CITY ______________[...]

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www.mgeups.com 1660 Scenic Avenue, Costa Mesa, California 92626 • (714) 557-1636[...]