Instruction/ maintenance manual of the product W7 Toshiba
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W7 Adjustable Speed Drive Installation and Operation Manual Document Number: 57442-000 Date: June, 2005.
Introduction Congra tulat ions on the purch ase of the new W7 Adjustable Speed Drive (AS D ). T h e W7 A SD is an 18-puls e PWM driv e designe d for use wit h 3-phas e AC induct ion motor s. Thi s 18 pulse design include s an 18 puls e i nput di ode bri dge re ctifier comb ined wi th an d an integr al phas e shift ing t ransfo rmer .
Abou t This Manu al This manua l was writt en by the T oshiba T echnical Public a tions Grou p. This group is task ed wit h pr oviding te chnica l docume ntati on for the W7 Ad justabl e Speed Driv e . Ev er y e ffort ha s be en m ad e to pr ovide accurate and co ncise info rmation to you, our custo m er .
Con t act ing T oshi ba’ s Cus tome r Supp ort Cen te r T oshiba’ s C ustomer Support Cen ter ca n be conta cted to o btain help in res ol ving any Adju sta b l e Speed Drive syst em pr oblem th at yo u may e xperie nce o r to p rovide appli catio n informa tion.
Tabl e of Co nt ent s W7 ASD Ins t a llat io n and O pe r a tion Manu al i Ge n er a l S a fe ty Inf o r ma t i on . .. .. ... .. ... .. ..... .. ... .. ... ..... .. .. ... .. ... .. ... .. ..... .. ... .. ... .... ... .. ... .. ... .. ... .. ..... ..
ii W7 ASD Inst allati on and Oper ation Ma nua l W7 AS D C ontr ol ... ..... ..... .... ..... ..... ..... .. ..... ..... ..... ..... ..... ..... .. ..... ..... ..... .... ..... ..... ... ..... .... ... 2 1 CNU1/1A and CNU2/ 2A Pi nout ..... ..... ....
W7 ASD I nstallation and Operation Manual 1 Genera l Safety Information DO NOT attempt to install , ope rate, m aintai n or di spose of this equip ment unt il you ha ve re ad a nd unders t ood a l l of the produc t safety inf ormation and di recti ons that are cont ained in this manua l.
2 W7 ASD Inst allati on and O per ation Ma nua l S pecia l Symb ol s T o ide ntify special h a zards, other s ymbols may a ppear in co njuncti on wit h the DANG E R , W ARNING and CAUTION si gnal words.
W7 ASD I nstallation and Operation Manual 3 Qua lified P erso nnel Inst alla tio n, opera tion, a nd maint enance s hall be pe rfor med by Q ualified Personne l Only .
4 W7 ASD Inst allati on and O per ation Ma nua l • The stor age temperat ure range of the W7 A SD is 14 to 104° F (-10 to 40° C). • Do no t store the unit in plac es that a re expos ed to out side weat her condi ti ons (i. e., wind, rain , snow , etc.
W7 ASD I nstallation and Operation Manual 5 Installatio n P recauti ons Lo cation an d Ambie nt Requireme nt s • The T oshiba ASD is int ende d for perma nent insta ll ations onl y .
6 W7 ASD Inst allati on and O per ation Ma nua l Con ductor Requirem ents and Grounding • Use separat e meta l c onduits for rout ing the input power , out put powe r , a nd c ontrol cir cuits and e ach sha ll have its own gr ound cable .
W7 ASD I nstallation and Operation Manual 7 Protection • Ensure that pr imary pro te ction ex ists for the input wiring to the equipm ent. Th is prote ction must be able t o interru pt the avail able fault cu rrent from the power line . The equipme nt may or may n ot be equi pped with an in put disconne ct (opti on).
8 W7 ASD Inst allati on and O per ation Ma nua l Sys t e m Integ rati on Prec autio ns The fol lowi ng precauti ons ar e pro vided as general g uideli nes for th e setu p of the ASD wi thin the system. • The T oshiba ASD is a genera l-pu rpose product.
W7 ASD I nstallation and Operation Manual 9 Syst em Setu p Req uir eme nt s • When usi ng the AS D as an int egral part of a la r ger system, it i s the respo nsi bi lity of the ASD i n s talle r or maint enanc e pers o n nel to en s ure t hat the re is a f ai l-sa fe in pl ace, i .
10 W7 ASD Inst allati on and O per ation Ma nua l Oper ati onal and Mai nte na nc e Precau tio ns • T urn of f , lockout, an d tago ut the main powe r, the cont rol power , and instrumen tatio n c onnect ion s before i nspecti ng or servici ng the drive , or ope ning the door of the enclosu r e.
W7 ASD I nstallation and Operation Manual 11 Motor Charac teristic s Liste d below are some va ria ble speed AC motor co ntrol conc epts with whi ch the user of the W7 Adjustable Speed Drive should b ecome f amiliar . Pu ls e Wid th Mo du la tio n Op e r ati on The W7 ASD uses a si nusoidal Pulse Width Modulati o n (PWM) c ontrol system.
12 W7 ASD Inst allati on and O per ation Ma nua l res is tor . The bra king resi s t or m us t be suit ably mat ched to the load. Dyna mic br aki ng is also e f fec ti ve in reduc ing t he DC bus vo ltage during a mom entary over -volta ge c onditio n.
W7 ASD I nstallation and Operation Manual 13 Inst allat ion and Connections The W7 Adjus table Speed Driv e m ay be s et up i nitial ly by performing a fe w si mple config uration se ttings.
14 W7 ASD Inst allati on and O per ation Ma nua l The ASD is designe d to operate NEMA B motors. Co nsult with your s ales repr esen tativ e before using the ASD for speci al applica ti ons s uc h as with an explos ion-proof m otor or appli cati ons wi th a piston loa d.
W7 ASD I nstallation and Operation Manual 15 Co nnect in g the A SD Ref er t o the se ction titl ed Insta llation Precautio ns on pg . 5 a nd th e sect ion t it led Lead Length Spe ci ficat ions on pg. 16 before attem pting to conne ct t he ASD a nd the motor t o el ectrica l power .
16 W7 ASD Inst allati on and O per ation Ma nua l Lead L ength S pecific ations Adhere t o t he 2005 NEC and any loc al c ode s during the ins tall at ion of ASD/Motor sy st ems. Excessi ve lea d len gths may adversel y effe ct the performanc e of the mot or .
W7 ASD I nstallation and Operation Manual 17 Contr ol T erminal S tri p I/O an d Con trol The W7 ASD can be controlled by s everal input types a nd co m bina tions t he reof, as we ll a s opera te withi n a wide range of output frequenc y and voltag e level s.
18 W7 ASD Inst allati on and O per ation Ma nua l I/O T erm inal D escriptions Note: The p r og rammable term in al assignments of th e dis c r e te i nput term i nals may be acce ssed and ch anged fr om thei r defa ult setti ngs a s mapp ed on pg. 42 (se e Input Te rmi nal s).
W7 ASD I nstallation and Operation Manual 19 II — Th e func tio n of the II input is to re c eive a 4 – 20 m A input sig nal th at contro ls a 0 – 80 Hz outp ut. This i nput termi nal may be progr ammed to control the s peed or t orque of t he mot or and may not be use d when us ing th e VI in put.
20 W7 ASD Inst allati on and O per ation Ma nua l Fig ure 5 . Contro l Termin al St rip PCBA. SW1 an d SW2 may be swit ched to change the full-s cale readi ng of the AM and FM o ut put term in als . S ee the AM T ermina l Assign m e nt and the F M T erminal Assignment descrip tions fo r furth er inf ormation on SW1 and SW2 .
W7 ASD I nstallation and Operation Manual 21 W7 AS D Cont rol The Control PCBA (P/ N 56000) serves as t he pri m ary control source for t he W7 ASD and re ceives input from the Control T ermina l St rip P CBA , an Opti on Card , RS232/RS 485 Com municat ions, or the W7 ASD Ke y pad .
22 W7 ASD Inst allati on and O per ation Ma nua l CNU1/1A an d C NU2/2A Pin o ut Contro l Boa r d CNU1 /1A and CNU2/ 2A pinout (RJ -45 connec to rs). CN3 Pi nout CN3 of the Contr ol Board is u sed for RS232/ RS 485 serial c o m mun ications . CN7 Pi nout CN7 of the Contr ol Board connec ts t o CN7A of the Control Term in a l Stri p PCBA.
W7 ASD I nstallation and Operation Manual 23 I/O Circ uit Confi gurations Fig ure 7 . Di sc rete Input. Fig ure 8. RR Input. Fig ure 9 . RX Input. Fig ure 10 . VI/II Input. F i gur e 11 . P24 Output. Fig ure 12 . PP Output. F i gur e 13 . OU T 1/O U T2 O u tp u t.
24 W7 ASD Inst allati on and O per ation Ma nua l T ypi ca l C onne ction Diag ram Figure 17. W7 ASD typical connection diagram. Note: W hen conne cting multi ple wir es to th e PA, PB, P C, or PO te rminal s, do not con nect a solid w ire a nd a st randed wire to the sa me term inal.
W7 ASD I nstallation and Operation Manual 25 Elect ron ic Ope rat or Inte rf ace The W7 AS D El ectroni c Op er ator Interf ace (E O I ) i s co mprised of an LCD di splay , two LEDs, a rotary encode r , and e igh t ke ys . These items are describe d below and their locati ons are provide d in Figure 18 on pg.
26 W7 ASD Inst allati on and O per ation Ma nua l Up Key — Increases the va lue of the se le cted param et er or s c rolls up the m enu l isting (con tinues duri ng press-a nd-hold). Down Key — De c reases the value of the sele cted paramet er or scrolls down the menu list ing (conti nue s during press -and-hol d).
W7 ASD I nstallation and Operation Manual 27 EOI Re mote Mounti ng The W7 A SD may be contr oll e d from a remote ly-mou nte d EO I . For safe ty a nd applic ation -spec ific reasons , some ASD instal la tions will war rant tha t the operator not be in th e vicinity duri ng operation or that the EOI not be att ached t o the ASD hous ing.
28 W7 ASD Inst allati on and O per ation Ma nua l EOI In st allation Precautions Insta ll the unit se curel y in a well ventil at ed area that i s out of di rect s unligh t using the four mount ing ho les of the EO I . T he am bi ent tem perat ure r ati ng fo r th e EOI is 14 t o 104° F (- 10 to 40° C).
W7 ASD I nstallation and Operation Manual 29 EOI R emote Mounting u sing the A SD-M TG-KIT Note: See F igures 20 a nd 21 for the di mensions and the i tem l ocation s r eference d in steps 1 throug h 6 . 1. At t he EO I mount ing lo c atio n, id entify and ma rk the locati ons of t he 5.
30 W7 ASD Inst allati on and O per ation Ma nua l Syst em Ope ration Oper at ion ( Local) Read and under st and all safe t y warnings be for e ope ra ting th is equipment! T o run the motor perform the fol lowi ng steps: 1. Pre ss the MON /P ROG key until t he Frequency C ommand screen is displ ayed (see Figure 24 on pg.
W7 ASD I nstallation and Operation Manual 31 The Chan ge d From Default fe atur e all ows th e us er to vi ew (or cha nge ) the pa rame ter s th at a re dif ferent from the defa ult or the post-res e t setting s .
32 W7 ASD Inst allati on and O per ation Ma nua l System Configuration and Menu Options Root Me nus The MO N/P RG ke y is used to a ccess th e thre e ro ot me nus of th e W7 A SD : the Frequen c y Command screen, the Mo ni to r scr e en , an d th e Progr am scre en .
W7 ASD I nstallation and Operation Manual 33 Monito r Screen The Monitor scre en re p orts the stat us of motor performa nce variables, c ontr ol set tings, and confi guratio n d a t a during motor oper ation. The r e ar e 30 items that may be moni tored from this mode.
34 W7 ASD Inst allati on and O per ation Ma nua l PID Feed bac k — Displays the insta ntaneous PID feedback value . Po st Comp ensati on Frequen cy — Display s the output frequenc y of the A S D afte r the appl icat ion of the wave form adjus t ment compens ation for chan ges in th e inpu t voltage .
W7 AS D In stallat ion and Op erati on Man ual 35 Progr a m Menu Navig ation Ta b l e 4 lists th e menu items o f the P rogram mode a nd maps the flow of the menu sel ectio ns. The Par ame t er N um ber s for the li sted funct ions are provi ded whe re appli ca ble.
36 W7 ASD Ins t a llat io n and Opera ti on Manu al S YSTEM I NFORMA TION AND S ETUP Setu p S witch -on -th e-F ly 0961 Elect roni c Thermal Prot ecti on #1 0600 PID Setu p In put F eedbac k Select io.
W7 AS D In stallat ion and Op erati on Man ual 37 S YSTEM I NFORMA TION AND S ETUP T r ip H is tor y (RTC opt ion requir ed) PID feed back value N/A Moto r overl oad rat io ASD over load r atio DBR o .
38 W7 ASD Ins t a llat io n and Opera ti on Manu al U TILITI ES Display Attributes Use r-d efined U n i t C har acte r 4 0968 Use r-d efined U n i t C har acte r 5 0969 T ype Reset Aut o Set up for 50.
W7 AS D In stallat ion and Op erati on Man ual 39 F REQUENCY S ET TINGS Refer enc e Priority Re fere nce Prio rity Se lect ion 0200 Freque ncy Mode #2 0207 Reference Priority M ode #1 /#2 S witching F.
40 W7 ASD Ins t a llat io n and Opera ti on Manu al C OMMUNICA TIONS S ETTINGS Comm unica tion I nt erval (lo gic) 0805 RS232/RS 485 Wi re Count 0821 RS232/RS 485 Response T ime 0825 TTL Master Ou tpu.
W7 AS D In stallat ion and Op erati on Man ual 41 F EEDBACK S ETTI NGS Input Feed back Sel ection 0360 Propor tion al Ga i n 0362 In te gral Gai n 0363 Dif feren tial Ga in 0366 Delay Filter 0361 Uppe.
42 W7 ASD Ins t a llat io n and Opera ti on Manu al P ROTECTION S ETTINGS Over l oad Reduct ion S t a rtin g Freque ncy 0606 Motor 150% Ove rload T i me Limit 0607 So ft St all S ele ctio n 0017 Tr ip.
W7 AS D In stallat ion and Op erati on Man ual 43 T ERMINAL S ETTINGS Input T ermina ls S5 01 19 S6 0120 S7 0121 S8 0122 S9 0123 S10 0124 S1 1 0125 S12 0126 ON 01 10 Other 0103 Ou t p ut T er min a ls.
44 W7 ASD Ins t a llat io n and Opera ti on Manu al T ERMINAL S ETTINGS AM/FM AM T erminal As signment 0670 AM T erminal Adjus tme nt 0671 FM T ermin al As signm ent 0005 FM T er min al Ad justme nt 0.
W7 AS D In stallat ion and Op erati on Man ual 45 S PECIAL C ONTROL ASD W ait T i me 0356 Co m me rcia l P ow e r W a it T i m e 0357 Commercial Po wer Hold T ime 0358 P ANEL C ONTROL Panel Direct ion.
46 W7 ASD Ins t a llat io n and Opera ti on Manu al W7 ASD Dir ect Access /Communication Numbers The W7 A SD has the abi li ty to allo w t he user direc t access to t he motor contro l functio ns. The func tio ns lis ted bel ow h ave an asso ciat ed Pa ramet er N umb er wh ich ac cesse s its s et ting.
W7 AS D In stallat ion and Op erati on Man ual 47 OUT1 T erminal Assi gnment 0130 VI /II Sp eed Fr equen cy Set point #1 0202 OUT2 T erminal Assi gnment 0131 VI /II Speed Refe rence Setp oint #2 0203 .
48 W7 ASD Ins t a llat io n and Opera ti on Manu al Motor Shaft S tat ion ar y Cont rol 0254 Integ ral ( I) Ga in 0363 J o g R u n Fr e qu e nc y 0260 Upper Devi ation Limi t 0364 Jog S top Control 02.
W7 AS D In stallat ion and Op erati on Man ual 49 Acce l/D ecel #1 /#2 S witchi ng Freq uency 0505 AM T erminal Adjustment 0671 S-Patter n Lower Limit Adjus tment 0506 F P T ermin al As signme nt 0676.
50 W7 ASD Ins t a llat io n and Opera ti on Manu al #3 Scan Rece i v e 0833 Sp eed R efere nce Ad dress 0863 #4 Scan Rece i v e 0834 T or que R efe rence St atio n 0865 #5 Scan Rece i v e 0835 T or qu.
W7 ASD I nstallation and Operation Manual 51 W7 ASD Pa rameter Des criptions This s ect ion lists th e pa ramete rs of the W7 ASD alpha be tical ly . T he list ing inc ludes t he ac ce ss p a t h and a descri pti on of e a ch pa ramet er .
52 W7 ASD Inst allati on and O per ation Ma nua l Accel eration Time #1 Program Fu ndamental Par am eter s Fundam ent al #1 Accel Time # 1 Th is p ara mete r sp ecif ies the prog ram med tim e in seco nds for the outp ut o f th e ASD to go f rom 0. 0 Hz to the Maxi mum Fr equen cy fo r th e #1 A cc elerati on pro fi le.
W7 ASD I nstallation and Operation Manual 53 Accel /Dece l #1 Pattern Program Fundament a l Par ameters Fundament al #1 Accelerat ion/De celeratio n #1 Pat tern This par ameter enab le s a user -se lecte d prepr ogramm ed outp ut prof ile t hat contr ols the acc elerati on and dec elerat ion pat tern fo r the #1 Accel /De cel param eter .
54 W7 ASD Inst allati on and O per ation Ma nua l Accel /Dece l #1/#2 Switching Fre qu ency Program Fundament a l Par ameters Fundament al #2 Accelerat ion/De celeratio n #1/#2 Switching Frequency Thi.
W7 ASD I nstallation and Operation Manual 55 AM T erm inal Assign ment Program T erminal Sett ings AM/FM AM AM T er mina l Assignment Th is s etti ng determ in es t he o utpu t fu ncti on of t he AM an alog out put te rmin al .
56 W7 ASD Inst allati on and O per ation Ma nua l ASD Wa it T ime Program S pecia l Cont rol Inver ter W ait Tim e Th is p ara mete r de termi nes the am ount of time th at th e dri ve w ill wa it b efore output ting a s i g nal to th e mot or onc e t h e switch- t o- driv e-ou t put cri teri a ha s been me t.
W7 ASD I nstallation and Operation Manual 57 Base Freq uency #2 Program M o to r Se tti ngs Base Fr equency # 2 The Mo tor #2 Base Frequ ency sett in g det er m in e s the freque ncy at whic h th e output volt age of the ASD reac hes its ma xi mum s etti ng.
58 W7 ASD Inst allati on and O per ation Ma nua l BI N Spee d Freq ue n c y S e tpoi nt #1 Program Frequenc y Sett in gs S peed Reference Setpoi nts BIN BIN Speed Freque ncy Setp oint #1 This par amet.
W7 ASD I nstallation and Operation Manual 59 BIN Speed Reference Setpoint #1 Program Frequenc y Sett in gs S peed Reference Setpoi nts BIN BIN Speed Reference Set point #1 This par ameter is used to s.
60 W7 ASD Inst allati on and O per ation Ma nua l BIN T orque Re f erence Reference #1 Program Frequenc y Sett in gs S peed Reference Setpoi nts BIN BIN T orque Reference Setpo int #1 This par ameter .
W7 ASD I nstallation and Operation Manual 61 Brake Fau lt Internal Timer Program Protect ion Set tings Br ake Faul t Internal T imer Aft er a brak e fa ilure has o ccurr ed, the u ser -set Br ake Fa ult Time clock setti ng will begin to co unt dow n.
62 W7 ASD Inst allati on and O per ation Ma nua l Commercia l (Po w er) W ait T ime Program S pecia l Cont rol Comm W a i t Ti me Th is p ara mete r de termi nes the am ount of time th at th e dri ve .
W7 ASD I nstallation and Operation Manual 63 Comm unic ations Referen ce Setpoint #1 Program Communica tions Setti ngs Communicati on Refer ence Setpoint #1 When ena bled vi a th e Communicat io ns Re.
64 W7 ASD Inst allati on and O per ation Ma nua l Comm uni c ati ons Fr eque nc y Se tp oint # 1 Program Communica tions Setti ngs Communicati ons Sp eed Setpoint #1 Th is p ara mete r is use d to set t he g ain an d bias of the Communi cation s Re fere nce speed cont rol input .
W7 ASD I nstallation and Operation Manual 65 Cumulative R un -timer Alarm Setting Program Protect ion Set tings Cumulative Run-timer Al arm Settin g This par ameter sets a run- time val ue that , once e xceede d, provide s an outp ut signa l . Th e out put signa l m ay be used to control ext e rnal equi pmen t or used to engage a brak e.
66 W7 ASD Inst allati on and O per ation Ma nua l DC Injecti on on a t Direction Ch ange Program Protect ion Set tings DC Inject io n On Di r ection Change Enable Th is p ara mete r Enables /Disable s th e use o f DC Inject ion bra kin g durin g a change in th e direc tion of the motor .
W7 ASD I nstallation and Operation Manual 67 Direct ion Priori ty Program T erminal Settin gs Input T erminal s Other Direction Priority Sel ect ion The Dir ect ion Prio ri ty sele ctio n d ete rmine s th e o per atio n of t he ASD if both the R an d F c ont ro l termi nal s a re ac tiva te d simult aneous ly .
68 W7 ASD Inst allati on and O per ation Ma nua l Dynami c Braking Enable Program Protect ion Set tings Dyna mic Braki ng Enable Th is p ara mete r Enables /Disable s th e Dy na m ic Br ak i ng sy s te m.
W7 ASD I nstallation and Operation Manual 69 Ear t h F ault Alarm L evel Program Protect ion Set tings EF Alarm Level Th is p ara mete r se ts th e t hres hold lev el ( %) that m ust be exce ede d to mee t the Earth Faul t Alarm act ivat io n c ri teri a.
70 W7 ASD Inst allati on and O per ation Ma nua l Electro nic Ther mal Protec t ion # 1 Program M o to r Se tti ngs Elect roni c Thermal Prot ection #1 Th is pa ra m e te r spec if ies th e m o to r o ve rl oa d cu rr en t leve l fo r m o to r se t #1 .
W7 ASD I nstallation and Operation Manual 71 Emer gen cy Off Mode Program Protect ion Set tings Emer gency Off Mode Sel ectio n This par ameter determine s t h e met hod us ed to stop th e moto r in the event th at an Emergenc y Off co m ma nd i s receive d.
72 W7 ASD Inst allati on and O per ation Ma nua l Fault D etect St ati on Number Program Communica tion Setti ngs Fault Dete ct S tatio n Number In a mul ti ple- ASD conf igur ation t his se ttin g deter mines th e ASD res ponsi ble for fau lt not ific atio n .
W7 ASD I nstallation and Operation Manual 73 FL T ermi nal Program T erminal Sett ings Output T ermi nals FL T erminal Assignment Th is p ara mete r se ts th e f unctio na lity of t he FL outp ut t ermina ls to 1 of the 58 possi bl e functi ons th at a re lis ted in Ta b l e 7 on page 14 1 .
74 W7 ASD Inst allati on and O per ation Ma nua l FP T erm i n al Ass i gnme nt Program T er minal Se t t ings O u tput T erminals FP F P T e rmin al Assignment Th is p ara mete r co mma nds the mult ifu ncti on pr ogr amm able FP t ermin al to moni tor the v alue of 1 of 31 possi ble syst em fun ctions.
W7 ASD I nstallation and Operation Manual 75 Freq uen cy Mode #1 Program Uti litie s Command and Frequen cy Setti ngs Frequency Mod e # 1 Se lect The Fr equency Mo de (# 1) sett ing es tabli sh es the sour ce of the f reque ncy- contr ol i nput fo r the ASD.
76 W7 ASD Inst allati on and O per ation Ma nua l F T erminal Del a y Program T erminal Sett ings T erminal Delay s Input T er minal Dela ys F This par ameter delays the res ponse of the ASD t o any ch ange in the F termi nal input by the prog ramme d val ue.
W7 ASD I nstallation and Operation Manual 77 In p ut T e r m in al P rio ri t y Program T erminal Settin gs Input T erminal s Other Input T e rmi nal P rio rity Sel ectio n Th is p ara mete r is use d.
78 W7 ASD Inst allati on and O per ation Ma nua l J og R u n Fre q ue n c y Program Freque ncy Set tings Jog Oper ation Jog Run Frequency This par ameter sets the out put fr equenc y of the AS D dur ing a Jog .
W7 ASD I nstallation and Operation Manual 79 Jum p Frequ enc y #2 Program S pecia l Cont rol Jump Frequenc y #2 Th is p ara mete r es tabl ish es the Jum p Freq uency #2 sett in g. Once set up and en abl ed, it is on in al l c ontrol modes . See the Jump Fre quency #1 pa rame ter fo r furt her infor m at ion on thi s set ting.
80 W7 ASD Inst allati on and O per ation Ma nua l LCD Contrast Program S pecia l Cont rol LCD Contras t Setti ng Press the Up/Down Arrow ke ys to inc re a s e or de crease t he con trast o f the LCD scree n.
W7 ASD I nstallation and Operation Manual 81 Low C urr ent T rip Th resh ol d Program Protect ion Set tings Low Current T rip Threshol d The L o w-c urre nt T ri p p aram eter ena ble s th is f uncti on. The Low Current T rip Thr esho ld est abli sh es th e lo w -c u rren t th res hold va lu e .
82 W7 ASD Inst allati on and O per ation Ma nua l Lo w Ou tput D is a bl e Boo st T ime Program PID Setup Low-output Disab le Boost Time The Lo w Outp ut Disable Boost Time s et s th e on-ti me ti mer f or th e LOD Boost fu nct io n. Once expi red, the LOD Boost fu ncti on ce ase s.
W7 ASD I nstallation and Operation Manual 83 Low Output Disab l e St art Level Program PID Setup Low-output Disab le St ar t Leve l The Lo w Outp ut Disable S tart Le vel sets the out put fr eq uenc y t h reshold t hat, if e xceede d, wi ll init iate th e LOD func ti on if p ro pe r ly con f ig ur e d.
84 W7 ASD Inst allati on and O per ation Ma nua l Maxim um Ou tpu t V oltage #2 Program Fundament a l Par ameters Fundament al #2 Maximum Output V olt age #2 Th is p ara mete r se ts th e m axim um v alu e o f th e ou tput volt age of the ASD for the #2 M ot or Set .
W7 ASD I nstallation and Operation Manual 85 Mo tor Cap acity (kW) Program M o to r Se tti ngs Mo tor Capa cit y (kW ) Th is u ser-i npu t par ame ter ide ntif ies the watta ge rati ng o f th e mo tor . Pa ram eter Type — N ume ri cal Facto ry Defaul t — (ASD-depe nden t) Changea ble During Run — No Minim um — 0.
86 W7 ASD Inst allati on and O per ation Ma nua l Mot or C ons t ant # 5 Program M o to r Se tti ngs Motor Const ant #5 (Leakage Induct ance) This par ameter is used to com pe nsat e for the affe cts of lea kag e ind uctan ce.
W7 ASD I nstallation and Operation Manual 87 M u lti pl y in g In pu t Se l ect io n Program Protect ion Set tings Mul tiplying Input Sel ectio n Th is p ara mete r Enables /Disable s the fe atur e that all ows f or the exte rna l ad just me nt o f th e Out put Fr eque ncy .
88 W7 ASD Inst allati on and O per ation Ma nua l Number o f Retrie s Program Protect ion Set tings Number of Retr ies Af ter a tr ip h as o ccu rre d, t his para mete r se ts t he n um ber o f ti mes tha t an au tom ati c sy stem res tart is a tt empt ed f or a qual if ied tr ip.
W7 ASD I nstallation and Operation Manual 89 O U T1 O n De la y Program T erminal Sett ings T erminal Delay s Output T ermi nal Dela ys OUT1 OUT1 On Del ay On c e th e con d it io n is met to ch an g .
90 W7 ASD Inst allati on and O per ation Ma nua l OUT4 Off Delay Program T erminal Sett ings T erminal Delay s Output T ermi nal Dela ys OUT4 Off Delay On c e th e con d it io n is met to ch an g e th.
W7 ASD I nstallation and Operation Manual 91 OUT 5 T erm i nal Program T erminal Sett ings Output T ermi nals OUT5 T er min al Assignment This pa rame ter s ets t h e f uncti onali ty of the OUT5 outpu t cont acts t o 1 of t he 5 8 possi bl e functi ons th at a re lis ted in Ta b l e 7 on page 14 1 .
92 W7 ASD Inst allati on and O per ation Ma nua l O U T7 O n De la y Program T erminal Sett ings T erminal Delay s Output T ermi nal Dela ys OUT7 On Delay This par ameter delays t he res ponse of the OUT7 ou tput co ntact s by the pro gra mmed value (se e wave forms at FL On Delay ).
W7 ASD I nstallation and Operation Manual 93 Overcu rrent Stall Le vel Program Protect ion Set tings Over current S t all Level Th is p ara mete r sp ecif ies the out put c urre nt l eve l at wh ich th e o utp ut f reque ncy is red uce d in an atte mpt to p rev ent a tr ip.
94 W7 ASD Inst allati on and O per ation Ma nua l O ver to rqu e Trip /A larm L ev el (nega t i ve torque) Program Protect ion Set tings Over torque T rip/ A la rm Level (negati ve t orque) Th is p ara mete r se ts th e t orque thr esh old lev el tha t is use d a s a setp oint f or overt orqu e t rippi ng duri ng regen eration .
W7 ASD I nstallation and Operation Manual 95 Overvo lt ag e St all L evel (fast) Program Protect ion Set tings Over volt age S t all Level (fas t) This par ameter set s t he upp er DC bus v olta ge thre sho ld that, once e xce eded, wi ll c aus e an Over volta ge S ta l l .
96 W7 ASD Inst allati on and O per ation Ma nua l Pa ne l S top P att e rn Program Pan el Co n t rol Panel S top Pa ttern The De cel S top or Coast S top se tt ings dete rmi ne t he method u sed to st op the moto r when usi ng the St o p | R es e t key of th e keypad.
W7 ASD I nstallation and Operation Manual 97 PG Number o f Pulses Program Feedbac k Settin gs PG Number of Input Pulses This par ameter i s used to set the end -of-tr avel ra nge whe n usi ng an enc oder on a moto r-d riven posit i on i n g sys tem (e.
98 W7 ASD Inst allati on and O per ation Ma nua l Enc oder PG S pe ed Fre q uenc y Set p oint #2 Program Freque ncy Set tings S peed Ref erence Setpoi nts PG PG Speed Frequency Setpoi nt #2 This par ameter is used to set th e direc tion, gai n, and bi as of th e PG inpu t te rminal when it is u sed a s th e S pe ed/D irec tio n - Control inp u t .
W7 ASD I nstallation and Operation Manual 99 P owe r-L in e S w itch in g Program S pecia l Cont rol Powe r-Line Swi tching Fre quency Th is p ara mete r Enables /Disable s th e Po werl ine Sw itch ing feat ure.
100 W7 AS D I nst allati on and O per ation Ma nua l Pre set S peed #1 Program Preset S peeds 1 Up to 15 ou tp ut freq uency va l ue s that f all wi thin t h e Lower Limit and the Upper Li mit r ange m ay be prog rammed int o the ASD and outp ut as a Prese t Speed .
W7 ASD I nstallation and Operation Manual 101 Pre set S peed #3 Program Preset S peeds 3 This par ameter assig ns an output fre quency t o binar y numbe r 001 1 an d is i denti fi ed a s Prese t Sp eed #3 .
102 W7 AS D I nst allati on and O per ation Ma nua l Pre set S peed #8 Program Preset S peeds 8 This par ameter assig ns an output freque ncy to bin ary num be r 1000 and is i denti fi ed a s Prese t Sp eed #8 .
W7 ASD I nstallation and Operation Manual 103 Pre set S peed #13 Program Preset S peeds 13 This par ameter assig ns an output fre quency t o binar y numbe r 1 101 an d is i denti fi ed a s Prese t Sp eed #1 3 .
104 W7 AS D I nst allati on and O per ation Ma nua l PW M Carri er Fr equ ency Program S pecia l Cont rol PWM Ca rrier Fr equency This par ameter sets the fr equen cy of t he puls e wid th modu lation si gnal applie d to the moto r . Note: The ca rrier f requ ency mu st be 2.
W7 ASD I nstallation and Operation Manual 105 Referen ce Priori t y Sel ect ion Program Freque ncy Set tings Reference Prior ity Reference Priority Sel ect ion Eithe r the Fr equency Mode ( #1) or the Fr equency Mo de #2 se tting may contr ol the ou tput fr equen cy of t he ASD.
106 W7 AS D I nst allati on and O per ation Ma nua l RES T ermin al Program T erminal Sett ings Input T er minals RES Th is pa ra me te r se le ct s the fu nct io nal ity of the RES discr et e input t ermin al. In ad di tion, the inp ut ter mina l mu st be sp eci fied as N o rm a lly Open or Normally Clos ed .
W7 ASD I nstallation and Operation Manual 107 RR S peed Frequ enc y Setpoint #1 Program Freque ncy Set tings RR RR Speed Freque ncy Setpoint #1 Th is p ara mete r is use d to set t he g ain an d bias of the RR in put te rm in al when the RR ter minal is used as the co ntro l in put whil e op era ting in the Spe ed Contr ol mode .
108 W7 AS D I nst allati on and O per ation Ma nua l RR Speed Reference Setpoint #1 Program Freque ncy Set tings RR RR Speed Reference Setpoint #1 Th is p ara mete r is use d to set t he g ain an d bi.
W7 ASD I nstallation and Operation Manual 109 RR T orq ue R ef ere n ce Se t poi nt #1 Program Freque ncy Set tings RR RR T orque Ref erence Setpoint #1 Th is p ara mete r is use d to set t he g ain an d bias of the RR in put te rm in al when the RR ter minal is used as the co ntro l in put whil e op era ting in the T or que Contr ol mode .
110 W7 AS D I nst allati on and O per ation Ma nua l RS23 2/ RS485 Baud Rate Program Communica tion Setti ngs RS232/RS485 Baud Rat e This par ameter sets t he RS232/R S485 baud r ate. Chan ges mad e to thi s par ame ter re quire t hat th e power be cy cl ed (Of f th en On) fo r the ch a nge s to ta k e eff ect.
W7 ASD I nstallation and Operation Manual 111 RS23 2/ RS485 M aster Ou tp ut Program Communica tion Setti ngs RS232/RS485 M ast er Output In a m ast er/f ollo wer c on figu rati on, thi s se ttin g dete rm ines th e ou tput para me ter of the ma ster ASD th at w ill be u sed to contr ol t he app lica ble foll ow er AS Ds .
112 W7 AS D I nst allati on and O per ation Ma nua l R T e rminal Delay Program T erminal Sett ings T erminal Delay s Input T er minal Dela ys R T erminal Delay This par ameter delays the res ponse of the ASD t o any ch ange in the R termi nal input by the prog ramme d val ue.
W7 ASD I nstallation and Operation Manual 113 RX2 Speed Frequ ency Setpoint #1 Program Freque ncy Set tings S peed Refere nce Set point s RX2 RX2 S peed Frequency Set poi nt #1 This par ameter is used.
114 W7 AS D I nst allati on and O per ation Ma nua l RX2 Speed Reference S etpoin t #1 Program Freque ncy Set tings S peed Refere nce Set point s RX2 RX2 S peed Referenc e Setpoi nt #1 This par ameter.
W7 ASD I nstallation and Operation Manual 115 RX2 T orqu e Referen ce Se tpoint #1 Program Freque ncy Set tings S peed Refere nce Set point s RX2 RX2 T orque Re f er ence Set point #1 This par ameter .
116 W7 AS D I nst allati on and O per ation Ma nua l RX Spe e d Fre que ncy S etpo in t #1 Program Freque ncy Set tings S peed Refere nce Set point s RX Speed F r equency Setpoint #1 This par ameter i.
W7 ASD I nstallation and Operation Manual 117 RX Spe ed R e fe ren ce Se tpoi nt #1 Program Freque ncy Set tings S peed Refere nce Set point s RX Speed Refer ence Set point #1 This par ameter is used .
118 W7 AS D I nst allati on and O per ation Ma nua l RX T o rq ue R eference Setp oint #1 Program Freque ncy Set tings S peed Refere nce Set point s RX T orque Referen ce Setpoint #1 This par ameter i.
W7 ASD I nstallation and Operation Manual 119 S1 T ermi nal Program T erminal Sett ings Input T er minals S1 T erm ina l Assignment Th is pa ra me te r se le ct s the fu nct io nal ity of the S1 disc rete i nput te rmin al . In ad di tion, the inp ut ter mina l mu st be sp eci fied as N o rm a lly Open or Normally Clos ed .
120 W7 AS D I nst allati on and O per ation Ma nua l S12 T erminal Program T erminal Sett ings Input T er minals S12 T ermin al Assignment Th is pa ra me te r se le ct s the fu nct io nal ity of the S12 disc rete input t ermi nal. Note: The S12 in put termin al may be use d withou t the ASD- Mu ltic om opti on boa rd.
W7 ASD I nstallation and Operation Manual 121 S4 T ermi nal Program T erminal Sett ings Input T er minals S4 T erm ina l Assignment Th is pa ra me te r se le ct s the fu nct io nal ity of the S4 disc rete i nput te rmin al . In ad di tion, the inp ut ter mina l mu st be sp eci fied as N o rm a lly Open or Normally Clos ed .
122 W7 AS D I nst allati on and O per ation Ma nua l S6 T ermi nal Program T erminal Sett ings Input T er minals S6 T erm ina l Assignment Th is pa ra me te r se le ct s the fu nct io nal ity of the S6 disc rete i nput te rmin al . Note: The S6 inp ut t ermina l may be u s ed wi thout th e ASD- Mu ltic om opti on boa rd.
W7 ASD I nstallation and Operation Manual 123 S9 T ermi nal Program T erminal Sett ings Input T er minals S9 T erm ina l Assignment Th is pa ra me te r se le ct s the fu nct io nal ity of the S9 disc rete i nput te rmin al . Note: The S9 inp ut t ermina l may be u s ed wi thout th e ASD- Mu ltic om opti on boa rd.
124 W7 AS D I nst allati on and O per ation Ma nua l Sea rch Inertia Program Protect ion Set tings Sea rch In ertia After a mome nt ary p ower loss or t he momentary loss of the ST -to- CC conn ection, this para m ete r se ts t he t ime f or the commande d torqu e to rea ch it s pro gramm ed se ttin g dur ing t he a utomat ic r esta rt.
W7 ASD I nstallation and Operation Manual 125 Sof t St al l Se lectio n Program Protect ion Set tings Soft Sta ll Se lec tion Th is p ara mete r Enables /Disable s th e Sof t S tall a nd Over lo ad T rip f uncti ons.
126 W7 AS D I nst allati on and O per ation Ma nua l Speed Dr op Detection F requency Range Program Protect ion Set tings S peed Dro p Detect ion Fr equency Range Whil e ope rating us ing PG fee dba c.
W7 ASD I nstallation and Operation Manual 127 Startup Fr equ enc y Program S pecia l Cont rol S t artup Frequ ency The ou tput of the ASD wil l r emain at 0.
128 W7 AS D I nst allati on and O per ation Ma nua l ST Sign al Sel e ct ion Program T erminal Sett ings Input T er minals Other ST Signal Selecti on This pa ramete r i s used t o set the opera ti on of t he S t an dby ( ST ) c ont rol t erm ina l or an y te rminal c onfig ured as the ST te rmin al.
W7 ASD I nstallation and Operation Manual 129 S T T erm ina l D ela y Program T erminal Sett ings T erminal Delay s Input T er minal Dela ys ST T e rmina l Dela y This par ameter delays the res ponse of the ASD t o any ch ange in the ST term inal inp ut by the program med val ue (s ee wa vefor ms a t FL Of f De la y ).
130 W7 AS D I nst allati on and O per ation Ma nua l T orq ue Bo ost #3 Program M o to r Se tti ngs T orque Boost #3 The Motor #3 T or que Boost func t i on is use d to incr ease the low fr equency torqu e for h i g h i ne rtia loads by inc r ea sing t he outpu t vol tage at frequ e nc i e s below ½ of th e #3 Base Fr equency sett ing .
W7 ASD I nstallation and Operation Manual 131 TTL B aud R a te Program Communica tion Setti ngs TTL Baud Rate This par ameter pl a ys a rol e in the se tup of t he commun icat ions ne twork by es tabl is hin g th e Bau d Rate of th e communica tion s link.
132 W7 AS D I nst allati on and O per ation Ma nua l Ty p e R e s e t Program U tilit ies T y pe Reset s This fe at u re ass ists t he user wh en pe rformi ng f ault anal ysis or b y allow i ng a quick sy stem set u p chang e when requ ired.
W7 ASD I nstallation and Operation Manual 133 Uni t s for V olt a ge and Curren t Program U tilit ies Displ ay Att ributes Units for V olt age and Current This par ameter sets the uni t of meas urem ent for cur rent and volta ge valu es displ ayed on th e keypad .
134 W7 AS D I nst allati on and O per ation Ma nua l V ector M otor Mo del Slip F requency Gain Program M o to r Se tti ngs V ector Mot or Model Slip Frequenc y Ga in This par ameter provides a degr ee of s lip co mpens atio n for a given l oad . A higher setting h ere decrea ses the sl i p al low ed f or a give n load/A SD ou t put rat io.
W7 ASD I nstallation and Operation Manual 135 VI/II Speed Frequency Setpoint #2 Program Freque ncy Set tings S peed Refere nce Set point s VI /II VI/I I S peed Fr equency Set point #2 Th is p ara mete.
136 W7 AS D I nst allati on and O per ation Ma nua l VI /II T o rque Re fe ren ce Se tpoi nt #1 Program Freque ncy Set tings S peed Refere nce Set point s VI /II VI/I I T orque Refe rence Set point #1.
W7 ASD I nstallation and Operation Manual 137 Su pply V olt age Comp ensation Program Freq Setti ngs V olt age Com p This par ameter adjusts the degre e of v oltag e compens at i on duri ng dead t ime by incre asing or dec r e asing the on -time of th e progra m m ed PWM just prior t o the start of the de ad time.
138 W7 AS D I nst allati on and O per ation Ma nua l Ta b l e 6 . Disc rete Input T erminal Assig nment Selecti ons and Descript ions. Unassigned — No oper ation . Forward — Ena bl es For ward op erat ion c ommands. Reverse — Enabl es Reverse o peratio n comm ands.
W7 ASD I nstallation and Operation Manual 139 Binary Bit 1 — Se e se lec tion Binary Bit 0 ab ove. Binary Bit 2 — Se e se lec tion Binary Bit 0 ab ove. Binary Bit 3 — Se e se lec tion Binary Bit 0 ab ove. Binary Bit 4 — Se e se lec tion Binary Bit 0 ab ove.
140 W7 AS D I nst allati on and O per ation Ma nua l VI/ II P r ty (VI/ II T e rm inal Prio rity) — Ac tivati ng this ter mina l as sign s c omm and c ontr ol t o th e VI /I I T e rm in a l and overr ides al l othe r C ontr ol T ermi nal Stri p input s o long as the Command Mode is set to Us e C on trol T e rmin al Stri p .
W7 ASD I nstallation and Operation Manual 141 Ta b l e 7 . Di scre te Out put T ermina l As signmen t Se lect ions. Discret e Output T er m inal Func tions Lower Li mit ( LL) POFF Al arm ( power suppl.
142 W7 AS D I nst allati on and O per ation Ma nua l AM/FM Scaling The magn itude of the AM/F M output si gnal at full-s c ale is se le ction-spe cific and may be adju sted to fit the r e qui rements of the a pplicati on (see AM T erminal Adjustment o n pg.
W7 ASD I nstallation and Operation Manual 143 Enclosure Dimensions and Conduit Plate Information W7 ASD Par t Nu mb e ring Co n v e nt ion. Note: The T yp e 1 encl osed ver sio n s of th e W7 AS D me .
144 W7 AS D I nst allati on and O per ation Ma nua l Encl osure Dime nsio ns/Weight Ta b l e 9 . W7 ASD 60 HP – 200 HP Enclosu re Dimensi ons. Mode l Shippin g We ig h t (l b s.
W7 ASD I nstallation and Operation Manual 145 T able 10. W7 ASD 250 HP – 800 HP E n closure Dimen sions. Mo del Sh ipping Weight (lbs. max.) W74 25K 2100 W74 30K W74 40K.
146 W7 AS D I nst allati on and O per ation Ma nua l Alarms, T rip s, and T roubleshooting Al arms and T rip s This se ct ion lis ts the a v ai lable use r -notifica tion code s of t he EOI displa y and provi des inf orm ation that ass is ts the user in th e event th at a Faul t is inc urre d.
W7 ASD I nstallation and Operation Manual 147 Alarm s Ta b l e 1 1 li s ts the alarm cod es tha t may be displ ay ed during ope rat ion of the W7 ASD .
148 W7 AS D I nst allati on and O per ation Ma nua l *OLI ASD Overload Load req uireme nt in exc ess of th e cap abilit y of the A SD. • The car rier fre quency is too high. • An exces sive l oad. • Accel erat ion t ime i s too short. • DC da m p in g ra te is se t to o h ig h.
W7 ASD I nstallation and Operation Manual 149 User Noti fic ation Code s The U ser Not ifica ti on co des appear on the F re quency Comm and s cre en wh ile the ass oci ated fun cti on is acti ve.
150 W7 AS D I nst allati on and O per ation Ma nua l Comm Error • C ommunic ation malf uncti on. • Improp er o r lo ose c onnectio n. • Improp er s ystem sett ings. Ct rl Unde rvolt s • Thi s faul t is cau sed by an und ervol tage co nditi on at th e 5, 15, or the 2 4 VD C su pply .
W7 ASD I nstallation and Operation Manual 151 Mot or Over load • V/ f sett ing nee ds to b e adj u s ted. • Motor i s lo cked. • Continuo us opera ti on at lo w speed. • Load requi rement exceeds abi lity o f th e moto r . • Start up fre quency se tting adj ustme nt r equir ed.
152 W7 AS D I nst allati on and O per ation Ma nua l Speed Err or • Res ult of a motor speed t hat is gr eate r than th e comman ded sp ee d when usi ng an en cod er for s pee d c ont rol. • Improp er e ncoder conn ection or s etup in form atio n.
W7 ASD I nstallation and Operation Manual 153 V iewing T rip Informatio n In the eve nt that the conditi on caus ing an Alarm does not re turn to the norma l operat ing level withi n a spec ifi ed time a Tr i p is inc urr e d.
154 W7 AS D I nst allati on and O per ation Ma nua l Cable/T erminal S pecifications Install a tion should c onfor m to the 2005 Na tional Elect rical Code Article 1 10 (NEC) (Re quireme nts f or Elec.
W7 ASD I nstallation and Operation Manual 155 Current/V olt age Specifications T able 15. W7 ASD 60 – 800 HP 460 Volt NEMA Type-1 Ch a ss is stand ard ra ti ngs t abl e.
156 W7 AS D I nst allati on and O per ation Ma nua l W7 AS D S p are Par t s Listing W7460 0 T1 MCCB 1–3 FU CPT1 12–13 FU 14 FU DCL FAN1 TIC # 56 266 56274 42371 P C33400P2 00 PC26143P 180 PC26130.
W7 ASD I nstallation and Operation Manual 157 Items listed below are comm on to all typeform s W74 25K T1 MCCB 1–3 FU CPT1 12–13 FU 14 FU DCL FAN1 TIC # 56 260 57528 46112 PC 33400P5 00 PC26143P 4.
Index 158 W7 Inst al l a tion an d Oper at ion Ma nual A Acce l/ D ece l #1/ #2 Switchin g Fre quency, 54 Acce l/Dece l Spe cia l Displ ay Reso lut ion, 54 Alarms, 147 AM, 1 7 , 19 AM Output, 33 AM Te.
W7 In stal lation an d Op erat ion Man ual 159 F F, 17 , 18 Fa ult, 146 Fault Detect Stati on Number, 72 Fault s , 146 Fi re Speed, 119 FLA, 17 , 19 FLA, B, a nd C sw i tc h ing rela tions hip, 19 Fla.
160 W7 Inst al l a tion an d Oper at ion Ma nual Operat ional and Mainte nance P recauti ons, 10 Option PCB Error, 151 OT, 148 Out(put ) Phase Lo ss, 151 OUT1, 17 , 19 OUT2, 17 , 19 Output Current, 34.
W7 In stal lation an d Op erat ion Man ual 161 ST S ignal Sele ction, 128, 138 ST1, 13 St all Pre venti on During Rege neration, 126 St art up and Test, 16 St op Key, 25 Supp ly Voltage Com pens a tio.
An important point after buying a device Toshiba W7 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Toshiba W7 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Toshiba W7 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Toshiba W7 you will learn all the available features of the product, as well as information on its operation. The information that you get Toshiba W7 will certainly help you make a decision on the purchase.
If you already are a holder of Toshiba W7, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Toshiba W7.
However, one of the most important roles played by the user manual is to help in solving problems with Toshiba W7. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Toshiba W7 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
