English dropdown-ico

Liebert 1500 manual

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59

Go to page of

Similar user manuals

A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Liebert 1500, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

What is an instruction?

The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Liebert 1500 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.

Unfortunately, only a few customers devote their time to read an instruction of Liebert 1500. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.

What should a perfect user manual contain?

First and foremost, an user manual of Liebert 1500 should contain:
- informations concerning technical data of Liebert 1500
- name of the manufacturer and a year of construction of the Liebert 1500 item
- rules of operation, control and maintenance of the Liebert 1500 item
- safety signs and mark certificates which confirm compatibility with appropriate standards

Why don't we read the manuals?

Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Liebert 1500 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Liebert 1500, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Liebert service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Liebert 1500.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Liebert 1500 item, and its use of respective accessory, as well as information concerning all the functions and facilities.

After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.

Table of contents for the manual

  • Page 1

    DC P OWER Helios DC System 4000/48 1500, 300 0, 4000 & 6000 A DC Power System User Manual[...]

  • Page 2

    [...]

  • Page 3

    i T ABLE OF CONTENTS 1.0 A BOUT T HIS D OCUMEN T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 Purp ose of This Docum ent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Applicabilit y of This Document . . . . . . . . . . . . . . . . . [...]

  • Page 4

    ii 3.11 Over all P ower System Spec ificat ions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 3.11.1 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 6 3.11.2 Mechanical Specificat ions of Ful ly Equipped Power Cabinets . . [...]

  • Page 5

    ii i FIGURES Figure 1 Front view o f a typical bo ttom fed 4000 A H elios DC Sy stem 4000/48 power syst em . . . . . . . 2 Figure 2 Front view o f a typical 600 0 A Helios D C System 4 000/48 powe r system . . . . . . . . . . . . . . . . 3 Figure 3 Typical configurat ions for He lios DC System 400 0/48 cont rol, distribu tion and rectifier cabinets[...]

  • Page 6

    iv T ABLES Table 1 Rectifier cab inets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Table 2 Control and distrib ution cabinets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Table 3 Auxiliary dis tribution cab inets . .[...]

  • Page 7

    About Thi s Document 1 1.0 A BOUT T HIS D OCUMENT 1.1 Purpose of This Document This do cument prov ides all the n ecessary information to operate an d maintain a Helios DC Sys- tem 4000/4 8 power s ystem. The ins tallation procedu res for th e Helios D C System 4000/48 pow er system a re covere d in instal- lation man ual SL-6003 4. 1.2 Applicabili[...]

  • Page 8

    2 I ntroductio n 2.0 I NTRODUCTION 2.1 D escrip tion The Heli os DC S ystem 4000 /48 is a po sitive gro und, -48 V DC nominal power sys tem consis ting of one control and distribution cabinet and one or more rectifier cabinets. It is available in capacities of 1500 , 3000, 40 00 and 60 00 A. Auxili ary distribut ion cabinets can be ad ded as requi [...]

  • Page 9

    Introduc tion 3 Figure 2 Front vie w of a typical 6000 A H elios DC System 4 000/48 pow er system Cables are used for in ter-cabinet connections (1500, 300 0 and 6000 A s ystems) or co nnections t o the over head busb ars (6000 A s ystem) for ease of ex pansion on live syste ms. In a 1 500, 3000 o r 4000 A syste ms, the powe r system batte ry retur[...]

  • Page 10

    4 I ntroductio n 2.3 Control and Distribution Cabinets - T ypical Configurations Figure 3 shows the front and side views of typical rectifier and distribution cabinets for a Helios DC Syste m 4000/48 ( bottom cabled cabinets are i llustrated - top cabled versions are av ailable). Figure 3 T yp ical config urations for Helios DC Syst em 4000/48 cont[...]

  • Page 11

    Introduc tion 5 Cabinets a re availab le in a varie ty of conf iguration s as liste d in the fol lowing t ables. Note t hat for a 6000 A sy stem, t he cabling is always at the top. T able 1 Rect ifier cabinets Cabi net C apac ity Rectif ier Cabled top or bottom Type Qty 1200 A Helios Rectifier 200I 6 Top 1200 A Helios R ectifier 200I 6 Bottom 1000 [...]

  • Page 12

    6 Sp ecification s 3.0 S PECIFICATIONS 3.1 Framew ork The Helio s DC Sy stem 400 0/48 uses ca binet type frameworks . The same cabinet des ign is use d for the main con trol and distribu tion cabin et, the auxilia ry distributio n cabinets and th e rectifier cab- inets. T he cabine t is always eq uipped with a front door and door frame (lockabl e, [...]

  • Page 13

    Specific ations 7 3.2 Conventional Controller 3.2.1 Mechanical Speci fications of the Conve ntional Controll er The mech anical spec ifications o f the Conve ntional Controller a re liste d in Table 5. Figure 4 Front view of the Conventional Controller 3.2.2 Electrica l Specificati ons of the Conventional Controller The op erating vol tage is -48 V[...]

  • Page 14

    8 Sp ecification s 3.3 Distribution Panels 3.3.1 Fuse Panels Mechanical spec ification s of the fuse panels The mechani cal specif icatio ns of the fuse pa nels are listed in Table 6 below. Figure 5 Front view of the 20 QFF 0-5 A fuse panels The DC output connections are wire wrap or sol der. T able 6 Mechanica l specificat ions of the f use panels[...]

  • Page 15

    Specific ations 9 Figure 6 Front view of the (16) QFF 0-5 A & (12) ABS 5-30 A fuse panels The DC output conne ctions are No. 8 -32 studs equipped w ith two hex nuts . Figure 7 Front view of the (16) QFF 0-5 A & (6) TPN 5-3 0 A fuse panels The DC output conne ctions are 0.2 50-20 studs equipp ed with two hex nut s. T able 8 Fuse size s avail[...]

  • Page 16

    10 Specific ations Figure 8 Front view of the (8) TPN 5-3 0 A fuse panels The DC output conne ctions are 0.2 50-20 studs equipp ed with two hex nut s. Figure 9 Front vie w of the (4) RS100P 70- 100 A fuse panels The DC output conne ctions are 0.3 75-16 studs equipp ed with two hex nut s. T able 1 0 Fuse sizes a vailable fo r the (8) TPN 5-30 A fu s[...]

  • Page 17

    Specifica tions 11 Figure 1 0 Front view of the (4) CRS200P 150-200 A / (4) CRS20 0P 150-200 A (w/load shunts) fuse panels The DC output conne ctions are 0.5 0-13 studs equi pped with two hex nuts. Figure 1 1 Front view of the (4 ) TPL 225-600 A fuse panels The DC o utput con nections are busba r angles th at can accep t 535MC M or 750MCM cables, o[...]

  • Page 18

    12 Specific ations Figure 12 Front view of the (18) TPS 1-70 A fuse panel Can accept maximum 1/0 AW G cables and requires on e-hole lugs for 1/4” dia meter st uds. T abl e 14 Fuse size s available f or the (1 8) TPS 1-70 A fuse pa nel Fuse type Current (A) CPC DC power (TPS ) 1 A0601 322 3 A0601 323 5 A0601 325 6 A0601 326 10 A060132 7 15 A060132[...]

  • Page 19

    Specifica tions 13 Electrica l specificati ons of the fuse panels The electr ical specifi cations of the fu se panels are described in Tabl e 15. 3.3.2 Circuit Breaker Panels Mechanical spec ifications of the c ircuit breaker panels The mechan ical specif ications of the circuit bre aker panels are described in Table 16. T able 15 Electr ica l spec[...]

  • Page 20

    14 Specific ations Figure 13 Front view of the (2 4) Plug-In 1-100 A circuit breaker panel The DC output connect ions vary according to the circuit breaker capacity: maximum cable size is 2/0A WG. Th e lugs m ust be for 3/ 8” dia. bolts at 1” c -c. Refer to Table 21 for the maximum panel capacity. T abl e 17 Plug-in c ircuit break ers availab l[...]

  • Page 21

    Specifica tions 15 Figure 14 Front view of the (4) 70-250 A circuit breaker panel The DC output connections can accommodate two 4/0 cables back t o back for each circuit breaker. The require d lugs can be either for two 3/8” holes at 1” c- c or for tw o 1/2” holes at 1-3/4” c-c. Refer to Table 21 for the maximum panel capacity. The (4) 70-2[...]

  • Page 22

    16 Specific ations Figure 15 Front view of the (2) 400 A circuit breaker panel The DC o utput connect ions can accom modate two 750 MCM cables back to back for e ach circuit breaker. Th e requir ed lugs must be for two 1/2” holes at 1-3/4” c-c. Refer to Table 21 for the maximum panel capacity. The panel a ccepts up to: • two breake rs (400 A)[...]

  • Page 23

    Specifica tions 17 Electrica l specifications of the ci rcuit breaker panels The electri cal specifica tions of the circui t breaker panels are de scribed in Table 21. T abl e 21 Electrical s pecificat ions of the circuit bre aker panel s Panel de scripti on Figure Circui t breakers Busbar capa city Max. Quan tity Capaci ty (24) Plug -In 1-100 A 90[...]

  • Page 24

    18 Specific ations 3.4 Externally Mounted Battery Ret urn Busbar The batt ery return busba r is desig ned to mount on the ov erhead rack ing for 6000 A systems an d top cabl ed 1500, 300 0 or 4000 A power sys tems. It can also be mo unted on a wall or on the floo r below the raised floor for b ottom cabl ed 1500, 3000 or 40 00 A power sy stems ( wh[...]

  • Page 25

    Specifica tions 19 3.5 T erminating Assemblies (Optional) The optional terminating assembly allows top access conn ections for up to six loads. Refer to Figure 18. Each l oad position is rated at 600 A and can accept up to three lugs having 1” or 1-3/4” c-c hole spacin g, for cables up to 777 kcmi l. The termin ating as sembly is b olted to th [...]

  • Page 26

    20 Specific ations 3.6 MPS 300 and MP A100 Power Shel ves The MPS 300 and MPA1 00 power shel ves are requ ired for the H elios Rectifie r 100/48, w hich is a plug-in type rectifier. The MPA100 power shelf supports one Helios Rect ifier 100/48, whil e the MPS300 shelf can s upport up to three He lios Rectif iers 100/48. 3.6.1 Mechanical Speci ficati[...]

  • Page 27

    Specifica tions 21 Figure 20 Front view of the MP A1 00 power shel f (shown empty) 3.6.2 Electrica l Specificati ons of the Power Shelves Each rectifier position provides interconnection points for AC input (208 to 240 V nominal ), DC output ( -48 V nomina l) and cont rol and ala rm signals. 3.7 Rectifiers The Helio s system 40 00/48 can be equipp [...]

  • Page 28

    22 Specific ations Electrica l specifications of the Heli os Rectifier 100/ 48 The ele ctrical spec ifications of the Helios Rectifier 100 /48 are liste d in Table 25. 3.7.2 Helios Rect ifiers 20 0I/48 and 200E/ 48 Mechanical spec ification s of the Heli os Rectifie rs 200I/48 and 200E/48 The mech anical specif ications o f the Helios Rectifier 200[...]

  • Page 29

    Specifica tions 23 Figure 22 Front vie w of the Helio s Rectifier s 200I/48 a nd 200E/48 VOLT AMP VOL T CAL FS ST UP DLY SLS CC/ DC 0 1 EQL THSD CL AD J EQL AD J RFA SEN FAIL HVSD FAN ALM EQL AC ON CL VOU TÐ FFI 1.0A FF2 1.0A FLT AD J V O LT / AM P VOU T+ HVSD AD J FLT CA/AC 1 0 CUR CAL[...]

  • Page 30

    24 Specific ations 3.7.3 Electrica l Specificati ons of the Helios Rectifiers 200I /48 and 200E/48 The ele ctrical spec ifications o f the Helio s Rectifiers 2 00I/48 and 2 00E/48 a re liste d in Table 27. 3.7.4 St andards The fo llow ing st andard s als o appl y to the rectif ier s: • ANSI Std. C62.41/IEEE S td. 587-1980, C lass A and B lightnin[...]

  • Page 31

    Specifica tions 25 3.8 Helios Monitor 3000/48 (Optional) 3.8.1 Mechanical Speci fications The mech anical spe cifications of the He lios Mon itor 3000/ 48 are list ed in Table 28. The ab ove dimensio ns are wi thout the mounting bra ckets. Th e weight may vary slig htly depen d- ing on t he number a nd type o f analog in terface mod ules insta lled[...]

  • Page 32

    26 Specific ations 3.10 AC Junction Box The AC jun ction box is required as an AC conne ction interface in rectifier cab inets wher e the Helios Rectifier 200 E/48 is used. Figure 25 Front view of the AC junction box (with the front panel open) 3.10.1 Mechanical Speci fications The juncti on box is mad e of zinc pla ted steel and can accommodate up[...]

  • Page 33

    Specifica tions 27 3.1 1.3 Electrical Specifica tions Refer t o the indiv idual comp onent’s specificat ions. Electromagneti c compliance ( EMC) The e quipme nt con tained in the p ower s ystem complie s with t he sp ecifi cations of FCC , Part 15, Subpart B for class A equipment, CSA 108.8 for class A and CISPR 22 for class A. Electrosta tic dis[...]

  • Page 34

    28 Operation 4.0 O PERATION 4.1 Gene ral This chap ter describe s the con trol, adjus tment and o perational features of the Helios DC System 4000/48. 4.2 Conventional Controller The Convent ional Contro ller monit ors the operat ion of the entire power pl ant. It mon itors all t he alarms, and it controls and monitors the rectifiers. Provis ion is[...]

  • Page 35

    Operati on 29 Potentiometer s Twelve potentiometers for th e adjustment of alarm and control functions as described in Table 34. T able 3 3 T r ansmitted alarms Alar m Descripti on RECT FAN (1 - Form C con tacts) RFA MI N (1 - Form C c ontacts) RFA MAJ (1 - Form C c ontacts) H/L FLOAT (2 - Form C conta cts) EQL ALM (1 - Form C contacts) H/L VOLT (2[...]

  • Page 36

    30 Operation Switches Four switches for the co ntrol of functions as described in Table 35. DIP switches Three DIP switch modules fo r the setting of functions as described in Table 36 and as shown in Figure 27 and Figure 28. Figure 27 Shunt range selection set tings T ab le 35 Switches Desi gnatio n Descrip tion EQUALIZ E MAN/AUTO Used to activate[...]

  • Page 37

    Operati on 31 Figure 28 Equalize voltage and dura tion settings Fuses Thirty-four fuses for circuit protecti on as described in Table 37. Except for the ABS fuse, which is small tu be type (9 /32” dia x 1-1/4” lon g), al l fuses are of the Q FF type . T est points Three se ts of te st points fo r applicatio ns as des cribed in Table 38. T able [...]

  • Page 38

    32 Operation 4.2.2 Rear Panel The rear pa nel of the Con ventional Co ntroller is provided with t he connect ion interfa ce features shown in Figure 30 and described in th e following sub sections. Figure 29 T erminal blocks and connectors layout at the rear of the Conventional Controller T erminal blocks Six termi nal bloc ks to in terface w ith e[...]

  • Page 39

    Operati on 33 Figure 30 Wiring diagram and pin assignment of terminal blocks TB1 to TB4 v 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 TB3 TB1 TB4 TB2 To o ffice circuit To o ffice circuit To[...]

  • Page 40

    34 Operation Figure 31 Wiring diagra m and pin assignment of terminal blocks TB5 and TB6, and connectors P1 to P26 Connectors Twen ty-six co nnect ors to in terfac e with extern al equ ipment as foll ows: • P1 to P24: signaling between the controller and the rectifiers • P25: inte rface with the mai n power system shunt • P26 : inte rface wi [...]

  • Page 41

    Operati on 35 4.4 Rectifiers The recti fiers provide isolated , filtered and re gulated DC power, from either a single-phas e AC source (Helios Rectifier 100/48) or a three-phase AC source (Helios Rectifier 200I/48 or 2 00E/48), for charging a positive grounded battery. The nomina l output is adjustabl e over the ra nge of -46 to -5 9.5 V to f loat[...]

  • Page 42

    36 Operation 4.8 Helios Monitor 3000/48 (Optional) The Helios Monitor 3000/48 is a microprocessor-based unit used to monitor and record powe r sys- tems opera tional da ta. The reco rded data is acces sible lo cally by mea ns of the front panel or the RS-232 port, or remotely through the mode m link. If an Helio s Monit or 3000/48 wa s suppl ied wi[...]

  • Page 43

    Mainte nance 3 7 5.0 M AINTENANCE 5.1 Gene ral The foll owing is a list of ge neral preven tive maint enance procedur es which shoul d be performed periodically as required according to the environmental conditions and customer maintenance polic y to ens ure tro uble fr ee operat ion of the H elios DC System 4000/ 48: • clean al l ventilat ion op[...]

  • Page 44

    38 Maint enance Air filt er replacement In dusty envi ronments, th e use of an ai r filter is strongly recommend ed. When used , it should b e replaced at least once a year. Do n ot install a wet filter on a rectifier. T o remove the filte r, simply unscrew it . Install the new one by reversing the ope ration. Contact yo ur local Lie bert repres en[...]

  • Page 45

    Mainte nance 3 9 5.2 T roublesho oting Table 39 provides a li st of the probl ems that may occur on the Hel ios DC System 4 000/48, al ong with their possible causes. Blown fuses and tripped circuit breakers should always be investi- gated be fore utilizing Table 39. T able 39 Fault diagnosis Fault sympto m Possib le ca uses No DC o utput c urrent [...]

  • Page 46

    40 Maint enance 5.3 Addition / Replacement Procedures 5.3.1 Addition or Replacement of a Rectifier Add a rectifie r as describ ed in the following p rocedure for a Helio s Rectifier 100/48 or as in the Adding a Helios Rectifier 200I/48 or 200E/48 procedure, whi chever is applica ble. LOP l amp lit Loss of o ne or more phases i n the A C supply HVSD[...]

  • Page 47

    Mainte nance 4 1 Adding a Hel ios Rectifier 100/48 1. Remove th e rectifier bla nk panel a nd store it for f uture use. Note: Should a rectifier be removed at any time, re-install the blank panel t o meet the regulatory requirements. 2. Verify that the AC, DC and signalling cabling for the rectifier shelf has been previously installe d and verified[...]

  • Page 48

    42 Maint enance end of the rectifier AC cord int o the corresponding female receptacle behind the ju nction box. For the s pecific AC cab le routing to be used w ith the H elios Rect ifier 200E/48, refer to Figure 35 in the case of a top fed s ystem, or to Figure 36 in the c ase of a bottom fed sy stem. 11. Make the gro und and line connecti ons as[...]

  • Page 49

    Mainte nance 4 3 Figure 33 AC conne ctions in the female r eceptacle fo r a Helios Rect ifier 200I/48 or a Helios Rect ifier 200E/48 Figure 34 AC connect ions inside t he junction b ox (top fed shown) for a Helios Rect ifier 200E/4 8 Phase 2 or L2 Phase 3 or L3 Cover GRD Phase 1 or L1 Phase 2 or L2 Phase 3 or L3 Cover GRD Phase 1 or L1 Helios Recti[...]

  • Page 50

    44 Maint enance Figure 35 AC cable r outing for the Helios Rectif iers 200E /48 in a top f ed system Figure 36 AC cable ro uting for the Helios Rectif iers 200E/48 in a bott om fed system Juncti on box RECT 6 RECT 5 RECT 4 RECT 3 RECT 2 RECT 1 Partial view of juncti on box Partial view of Rect . 1 Rect. 6 Rect. 5 Rect. 4 Rect. 3 Rect. 2 Rect. 1 Enl[...]

  • Page 51

    Mainte nance 4 5 5.3.2 Replacing a Rectifier Replace a re ctifier as describ ed below fo r a Helios Re ctifier 100/4 8 or as in Replacing a Helios Rectifier 200I/48 or 200E/48, whichever is ap plicable. Replacing a Helios Rectifi er 100/48 1. Notify the alarm center of incomi ng alarms during this proce dure. 2. Turn OFF the AC and DC circuit break[...]

  • Page 52

    46 Maint enance Replacing a Helios Rectifi er 200I/48 or 200E/48 1. Notify the alarm center of i ncoming alarms during this procedure. 2. Turn OFF the AC and DC circuit breakers on the rectifier to be replaced. 3. Remove t he corresp onding sense fuse on the front of the cont roller. 4. At the AC service panel, place the AC circuit break er associa[...]

  • Page 53

    Mainte nance 4 7 5.3.3 Adding or Repl acing a Batter y String For replaceme nts, procee d from Step 1 below. F or new instal lations , go to St ep 5 of this proce- dure. 1. Rem oval of the old st rin g: Notify the alarm cente r of the possi bility of i ncoming al arms during thi s procedure. 2. Above t he batte ry stand, or a t the top o f the mai [...]

  • Page 54

    48 Maint enance 5.3.4 Replacement of a Distri bution Fuse Block or Circuit Breaker Replace a d istribution fuse block as describe d below. 1. Notify the alarm center of i ncoming alarms during this procedure. 2. Rem ove the fuse f rom th e fus e block t o be r eplac ed. 3. Remove the rear panels of the cab inet. 4. Carefully remove and insulate any[...]

  • Page 55

    Reference Do cuments 49 6.0 R EFERENCE D OCUMENTS Manual No. Desc ript ion SL-60040 600 A and 1 200 A Battery Disconne ct Unit SL-60014 TCM48 temp erature compe nsation mod ule SL-60026 Voltage lev el limi ts for recti fiers and controlle rs SL-60015 Helios Monitor 30 00/48 rem ote surve illance u nit SL-60033 Helios DC Sys tem 4000/48 Inst allatio[...]

  • Page 56

    50 List of T erms 7.0 L IST OF T ERMS A ampere ABS alar m battery suppl y ABSF ala rm batt ery suppl y fuse AC or ac al tern atin g curre nt ACO alar m cut-off AD Assembly drawin g ADJ adjus t or adjust ment ALM alarm AMP ampere AUD audibl e AUX auxil iary AWG Americ an wire g auging BAT battery BAT R TN battery retu rn BDA battery disconn ect alar[...]

  • Page 57

    List of Terms 5 1 HVSD high v oltage shutdown HVSDA high vo ltag e shut down alarm HVSDR high v oltage shutdown r eset in. inch in.-l b inch-poun d IS interconne ct schema tic ISG isolated sy stem ground L line lb pound LED li ght em itti ng dio de LF low floa t LOP loss of phase LV low vol tage LVA low voltag e alarm LVD low voltag e discon nect L[...]

  • Page 58

    52 List of T erms[...]

  • Page 59

    Revised : June 199 9 Helios DC System 4000/48 1500, 300 0, 4000 & 60 00 A DC Pow er System T echnical Support The Company Behind The Products With mo re than 5 00,000 inst allation s around t he globe , Lieber t is the wo rld leader in comput er prot ectio n syste ms. S ince its fou nding in 19 65, Lieb ert h as deve loped a com plete range of [...]