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OPM_LPS_31E_8K0_20K_1GB_V010.doc

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Operating

Manual

LP 31

/ 8-10-15-20

kVA

5.2

POTENTIAL FREE CONTACT INTERFACE

Furthermore four potential free contacts are available for signalling to a user-defined system:
see fig. 6 connector 17 – Section 4.1.

Potential free contacts: functions and pin numbers

Function

Normally open

Coommon

Normally closed

Bypass active

3

4

5

Battery low

6

7

8

General alarm

9

10

11

Utility failure

12

13

14

Max: 48VDC 500mA

Min.: 5VDC 100mA

5.3 SNMP INTERFACE (OPTIONAL)

The optional SNMP plug-in card allows the data interface to be connected directly to an
Ethernet network (thin coax, twisted pair, AUI).

For more information please refer to the user manual that comes with the interface card.
See also chapter 6.2.

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Summary of Contents for Digital Energy LP 31 Series

Page 1: ...ANUAL UNINTERRUPTIBLE POWER SUPPLY LP 31 8 10 15 20 kVA Series 1 g GE Digital Energy SA 6595 Riazzino Locarno Switzerland Telephone 41 0 91 850 51 51 Fax 41 0 91 850 51 44 LP Series UPS Technology for the digital world ...

Page 2: ...eserved The information contained in this publication is intended solely for the purposes indicated The present publication and any other documentation supplied with the UPS system is not to be reproduced either in part or in its entirety without the prior written consent of GE The illustrations and plans describing the equipment are intended as general reference only and are not necessarily compl...

Page 3: ...f the LP 31 Uninterruptible Power Supply system developed and produced to the highest standards of quality will give you complete satisfaction Please read carefully the Operating Manual which contains all the necessary information and describes all you need to know about the use of the UPS Thank you for choosing GE Manufactured by Distributed by Your service contact g GE GE Digital Energy SA 6595 ...

Page 4: ...YPASS SWITCH 10 2 6 MANUAL BYPASS SWITCH 11 3 INSTALLATION 12 3 1 PACKAGE CONTENTS 12 3 2 LOCATION 12 3 3 INSTALLATION 12 4 OPERATION 15 4 1 DESCRIPTION OF FRONT AND REAR PANEL 15 4 2 START UP 17 4 3 USE 18 4 3 1 Information screens 19 4 3 2 Status Messages and Alarm Messages 20 4 3 3 Service screens 24 4 3 4 Setup menu 26 4 4 TEST SCREENS 28 4 4 1 Battery Test general 28 4 4 2 Quick Battery Test ...

Page 5: ...CE 33 5 2 POTENTIAL FREE CONTACT INTERFACE 34 5 3 SNMP INTERFACE OPTIONAL 34 6 OPTIONS 35 6 1 EXTENDED RUN TIME VERSIONS 35 6 2 SNMP INTERFACE CARD 35 7 MAINTENANCE 36 7 1 GENERAL 36 7 2 COOLING FAN 36 7 3 BATTERIES 36 7 4 SAFETY 37 7 5 STORAGE 37 8 TROUBLESHOOTING 38 9 ANNEX 40 9 1 TECHNICAL DATA SHEETS 40 9 2 TECHNICAL DIAGRAMS 40 ...

Page 6: ... even when the UPS is disconnected from the mains Dangerous voltages may be present during battery operation The batteries must be disconnected during maintenance or service work The UPS contains potentially hazardous voltages Do not open the UPS there are no user serviceable parts inside All maintenance and service work should be performed by qualified service personnel 1 2 2 Installation The UPS...

Page 7: ...ths 1 2 4 Batteries When replacing the batteries use the same number and voltage V capacity Ah Proper disposal or recycling of the batteries is required Refer to your local codes for disposal requirements Never dispose of batteries in a fire they may explode Do not open or mutilate batteries their contents electrolyte may be extremely toxic If exposed to electrolyte wash immediately with plenty of...

Page 8: ...ATION On line UPS with battery not in line with the DC link resulting in enhanced battery life optimal battery charging full wave input converter with power factor correction extremely wide input voltage and input frequency tolerance output converter inverter using IGBT technology 2 2 NORMAL CONDITIONS Under normal conditions see section 9 Input Specifications energy from the mains is channelled t...

Page 9: ... When the mains is re established within tolerance the output converter will be supplied again by the input converter and the batteries will be recharged making them ready to support future power Figure 2 Block diagram mains failure 2 4 AUTONOMY TIME The autonomy time the time the output converter can operate on battery depends on the capacity of the battery and on the power demand of the equipmen...

Page 10: ... severe overload or short circuit the magnetic bypass circuit breaker front panel see 4 1 may trip in order to protect the UPS If the current is insufficiently high to trip the breaker the UPS will be switched OFF by the software in order to protect the UPS and connected equipment See also chapter 4 5 overload protection in bypass mode for more information When the normal situation is restored and...

Page 11: ... manual bypass switch located at the rear panel It is a two position switch the normal position is 1 as in figures 1 2 Position 2 is the service position the load is directly connected to the mains input This way testing and maintenance of the UPS is possible without interruption of the power supplied to the load Figure 4 Bypass operation manual bypass ...

Page 12: ... is essential the UPS has to be protected by distribution fuses slow blow connected to the mains input of the UPS For fuse values please refer to drawing SINGLE LINE DIAGRAM if an earth leakage circuit breaker is installed in the mains input circuit be sure its rating is 1A differential or more Other circuit breakers may trip due to the return current of the load which partly passes through the by...

Page 13: ... install battery extension packs proceed with step 10 If you are not using battery extension packs skip to step 19 10 Please refer to drawing BATT PACK CONNECTION Battery extension pack s are shipped with all materials necessary to connect them to the UPS see chapter 3 1 The pack s can be connected to the terminals at the rear panel of the UPS The internal DC wires are already connected to the rea...

Page 14: ...re four potential free contacts are available 21 A plug in UPS network interface card optional makes the UPS SNMP manageable This option can be used to connect the UPS directly to a computer network See chapter 5 for more information 22 If you have not installed a battery pack install all battery fuses at the front Start at the upper side The number of fuses shipped with the UPS depends on the rat...

Page 15: ...tivity during 20 seconds the LCD screen will return to the default screen except for the service screens see chapter 4 3 3 5 LED operation Normal operation 6 LED alarm Indicates an alarm situation accompanied by alarm message s on the display and a sounding buzzer See chapter 4 3 2 for more information 7 Inverter ON OFF switch Turn ON OFF the inverter ATTENTION This switch does not switch OFF the ...

Page 16: ...ypass input terminals 4 L 5 N 6 protective earth 14 ComConnect Interface Port RS232 see chapter 5 1 15 Interface PCB with 16 Alarm connector of the optional battery extension MCB 17 Potential free contacts see chapter 5 2 pin 1 common pin 2 NC not connected 18 Emergency shutdown EPO Emergency Power Off 19 Slot for optional SNMP plug in card behind PCB see chapter 5 3 20 Slots to fasten cable clamp...

Page 17: ... default screen model and actual load values are examples LP 15 31 load 37 In case of a system failure the self test results in a failure message this message is displayed for 30 seconds before the self test is repeated automatically If the faulty situation persists switch OFF the UPS and contact your dealer 2 Though the batteries the internal energy reserve were fully charged when the UPS left th...

Page 18: ... turning the UPS OFF and on again with switch inverter ON OFF 7 on the front panel The UPS is operated via the push buttons and the LCD display on the front panel Furthermore the UPS can be controlled via the ComConnect interface port For more information see chapter 4 5 and section 5 Interface features The menus on the display can be divided into 4 groups 1 standard menu 2 information menu see ch...

Page 19: ... factor and crest factor of the connected equipment BATTERY 23 C 270V 269V 0 1A The temperature near the batteries the battery voltage and the battery current charge value discharge value RUNTIME 83 LEFT 0 10 12 The autonomy time if a mains failure occurs The autonomy value is initially based on the capacity of new batteries As batteries age as a result of which their capacity deteriorates the ini...

Page 20: ... 6 From the standard alarm screen depressing shows which alarms are active in priority order Scroll through the screens with and Alarm message texts can succeed each other The following messages are possible LOADnotPROTECTED CAP C1 DEFECT The output capacitor C1 is defective Contact your dealer UPS OVERLOADED REDUCE LOAD The load exceeds the rated output power of the UPS and the output voltage can...

Page 21: ...GE TOO HIGH BATTERY CHARGER VOLTAGE TOO HIGH The output voltage of the battery charger is too high internal failure BATTERY CHARGER TEMP TOO HIGH The battery temperature is too high due to a battery failure or a too high ambient temperature BATTERY CHARGER NO FLOAT After 24 hours of charging time the battery voltage did not reach the normal float voltage This may be caused by faulty batteries many...

Page 22: ...internal battery fuses is defective this may have been caused by an internal system failure This alarm also appears if no batteries are installed EXTERNAL BATTERY FUSE FAILURE The battery extension MCB is in OFF position down energy reserve of the battery extension pack is not available If not manually operated this may have been caused by faulty wiring or battery failure REPLACE BATTERY The batte...

Page 23: ...verter is not able to deliver the required output output power is lost RUNTIME LEFT 0 09 41 The remaining autonomy time This figure is counted down during battery operation until either the mains returns or the batteries are empty OUTPUT OFF NO INPUT POWER The output is switched OFF due to a faulty situation indicated by the second line e g no input power and depleted batteries PROG SHUTDOWN WITHI...

Page 24: ...DC 380 380 Service information about fan speed min 10 max 30 and internal DC voltage HEATSI TEMP 567 BATT TEMP 23ºC Service information on internal temperature levels values in mV over the temperature sensors FLOAT CHARGE 1 OUTPUT FAST 0 Upper line 1 batteries have reached float voltage Second line service information on output converter INVERTER 1 Q4 1 Service information on internal UPS componen...

Page 25: ...S transfers the load to bypass when the keys 2 and enter reset 3 on the front panel are depressed simultaneously during approx 2 seconds If the bypass supply is not within limits the lower line will show the text UNAVAILABLE AUTOMATIC BYPASS ENABLED Service set up information whether the bypass is enabled default or disabled If disabled UPS will NOT go to bypass BATTERY 14Ah BAT CHARGE 99 Service ...

Page 26: ...s the time out period of no key activity Pressing display the screens in the following order WARNING OUTPUT CHANGE ON LINE A short reminder that the new settings will be valid immediately after pressing the enter reset key LANGUAGE ENGLISH Changes the language of the screen messages you can select English German French Italian and Spanish OUTPUT FREQUENCY 50 0Hz The system output frequency Range 5...

Page 27: ...e SMALL LARGE Proper setting optimizes the cooling capacity of the fans installed DO NOT READJUST Incorrect setting may lead to reduced lifetime of the power semiconductors NO LOAD SHUTDOWN YES Setting YES means that the function is activated the UPS switch OFF during a mains failure when the load is less than 2 of the maximum load Range YES NO AUTOMATIC BYPASS ENABLED Controls functioning of the ...

Page 28: ...has not been completed successfully 4 4 1 Battery Test general Automatic test The LP 31 UPS conducts periodic automatic battery tests to ensure that the batteries and the wiring are healthy and able to support power failures The tests do not cause any interruption in the function of the unit and are conducted after every 500 operating hours Manual test A manual battery test can be activated either...

Page 29: ...tual load and initially on the condition and thus capacity of new batteries Due to ageing of the batteries this capacity will deteriorate and gradually there will grow a difference between the calculated autonomy shown in the screen and the real autonomy During a deep battery test the UPS will check and store the actual capacity of the batteries This information will be used during future autonomy...

Page 30: ...d or batt extension packs can lengthen the test period considerably Do not change the load during the test i e do not switch OFF or ON connected equipment The deep battery test discharges the batteries to battery low alarm level see chapter 4 3 2 battery low Please note that immediately after a deep battery test the expected autonomy time is very short allow the UPS to recharge its batteries allow...

Page 31: ...ting After enabling the ECO mode please refer to service screens 4 3 3 the standard menu change to LP 15 31 load 37 ECO 4 5 2 Shutdown Remote shutdown Using communication capabilities the computer can direct the UPS to turn itself OFF following controlled shutdown of the system Subsequently the UPS will remain OFF for at least a few seconds see also 4 3 LED operation will blink green The unit will...

Page 32: ...however is lost The sleep period can be cancelled by either turning the ON OFF switch 7 OFF for a few seconds or by sending the appropriate command via the ComConnect port 4 5 5 Overload protection in bypass mode The LP 31 will protect itself in case of overload Upon an overload which is caused by abnormal circumstances the UPS will switch to bypass operation and subsequently the bypass input fuse...

Page 33: ...n the screen to inform the user Monitored conditions include mains voltage availability discharge level of batteries temperature of the batteries interactive control and diagnostic information for stand alone and network systems Interface kits cables and software are available for most commonly used network operating systems including Novell UNIX VMS Banyan Vines Windows Platforms Apple 3COM IBM L...

Page 34: ...contacts functions and pin numbers Function Normally open Coommon Normally closed Bypass active 3 4 5 Battery low 6 7 8 General alarm 9 10 11 Utility failure 12 13 14 Max 48VDC 500mA Min 5VDC 100mA 5 3 SNMP INTERFACE OPTIONAL The optional SNMP plug in card allows the data interface to be connected directly to an Ethernet network thin coax twisted pair AUI For more information please refer to the u...

Page 35: ...ry float charge Battery packs can be connected in parallel to increase the autonomy All the necessary protection and connection material is included in the delivery LP 31 8 kVA 10 kVA 15 kVA 20 kVA Extension 1 7Ah 7Ah 14Ah 14Ah Total capacity 14Ah 14Ah 28Ah 28Ah Typical autonomy 100 50 load minutes 36 78 25 58 33 75 25 58 Number of packs required 1 1 Extension 2 14Ah 14Ah 28Ah 28Ah Total capacity ...

Page 36: ...the UPS an automatic battery test is performed regularly to ensure failsafe operation see chapter 4 4 1 When the condition of the battery is critical the warning signal will be activated buzzer 1x per 8 secs and alarm message Replace battery see chapter 4 3 2 The batteries must be replaced as soon as possible Please contact your dealer NOTE under certain circumstances a manual battery test can res...

Page 37: ...ry conduct dangerous voltages except the ComConnect output For your safety only authorised service personnel may remove the cabinet cover 7 5 STORAGE Always store the UPS in a cool dry location with the batteries in a fully charged state Storing the unit for a period exceeding 3 months can reduce the life of the batteries To maintain their normal life expectancy the batteries must be recharged per...

Page 38: ...sages can be displayed SELFTEST FAILURE PCB POWER SUPPLY One or more voltages of the internal power supply is are outside tolerance Please contact your dealer SELFTEST FAILURE AC ON OUTPUT An external AC voltage not the UPSs output voltage was detected on the output terminals Please contact your dealer SELFTEST FAILURE PCB CONNECTORS One or more of the connectors inside the unit has a defect or is...

Page 39: ...ay be faulty or depleted Wait for a few hours leave the UPS switched on If absence of input power mains failure maintenance work is expected to last longer than a few hours switch OFF the UPS to save battery power If the UPS input power is absent for several days and the UPS remains on under no load conditions the batteries can be discharged very deeply resulting in a short battery lifetime SELFTE...

Page 40: ...ings Drawing title Drawing number Single line diagram 400 023 8 page 1 4 Wiring diagram 400 023 8 page 2 4 Service diagram 400 023 8 page 3 4 Terminals on rear 400 023 8 page 4 4 UPS to battery cabinet connection 300 404 1 page 1 2 Installation of internal batteries pack 300 404 1 page 2 2 UPS general arrangement 400 033 7 page 1 5 UPS cubicle dimensions 400 033 7 page 2 5 Dismantlement of UPS cab...

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