Manuale d’uso / di manutenzione del prodotto 20/20 del fabbricante Emerson
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V is sion 20/20 micro -c on trolle r Ope ra tion and se r vic e m anu al.
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Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 T OC - 1 T able of Contents Section T itle Section Number How T o U se This Manu al ...............................................................................
Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 T OC - 2 Section 4 • Main Screen Ove r view .....................................................................................................................
Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 T OC - 3 Section 10 • Compressor Sequencing Ove r view ..........................................................................................................
Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 T OC - 4 Section 16 • Ev ent List Ove r view ....................................................................................................................
Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 T OC - 5 Section 20 • Data Backup Ove r view ....................................................................................................................
Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 T OC - 6 T able 3-1. Digital I/O .........................................................................................................................3-3 T able 3-2.
Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 T OC - 7 Figure 19-4. Configuration Scree n - Page 4 .................................................................................... ....19-7 Figure 19-5. Configuration Scree n - Page 5 .
Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 T OC - 8 How t o Use This Manu al This manual c ontains instruc tions for the Vission 20/20 Opera tion & Service Manual. It h as bee n divided int o 25 sections.
1 – 1 Figure 1-1. Operation al Flow Ch ar ts (1 of 2) Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 1 • Operation al Flow C har ts V olume and Ca.
1 – 2 Figure 1-1. Operation al Flow Ch ar ts (2 of 2) Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Is Suction Press < Suct Press Cap Dec ON Setpt? Capacity Increase Disabled Normal Loading and Unloading Decrease compressor capacity until Suction Press > Suction Pr ess Cap Decrease ON setpoint.
2 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 2 • Installation R ec ommenda tions Proper Wiring Sizing • Always siz e wire gauge s as spec i fi ed b y the Na tional Electrical Code (NEC) f or electronic con trol devic es.
2 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 2 • Installation R ec ommenda tions Grounding • Continuous grounds mu st be run from the util- it y ground to the Vission 20/20, see Figure 2-3.
2 – 3 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Figure 2-5. Correct T ransf ormer Wiring Me thod Wiring Methods • Each Vission 20/20 pane l should ha ve its own indi- vidual c ontrol transf ormer , see Figure 2-5.
2 – 4 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Best Practices • Do : • K eep A C wires away from circ uit boards.
3 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 3 • Hardware Archit ec ture Ove r view The Vission 20/20 con trol pane l utiliz es X -86 PC technol- ogy with a Linux operating syst em. F or hardware archi- tecture, see Figure 3-1 Hardware Arc hitecture Overview.
3 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Digital Input/Output (I/O) Re f er t o T able 2-1. Digital I/O. Compress or Start Output: • When the Vission 20/20 signals the c ompressor t o star t, this output is ener giz ed.
3 – 3 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 T able 3-1. Digital I/O (1 of 2) Board I/O # Description T ype 1 1 Compres sor S tar t OUTPUT 1 2 Oil Pu.
3 – 4 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 High Lev el Shutdo wn Input: • This input mu st be ene rgi zed in or der f or the com- pressor t o opera te . If de-energi zed, the c ompressor will shut down and issue a high lev e l trip.
3 – 5 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 3 • Hardware Archit ec ture T able 3-2. Analog Inputs (1 of 2) Board I/O # Description T ype .
3 – 6 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 V olume Position: • Re ads the 0-5 volt signal back from the slide volume motor actuat or to indica te curre nt v olume position. Suction T empera ture : • Default signal is R TD.
3 – 7 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 T able 3-3. Analog Outputs Board I/O # Description T ype 10 1 Compress or VFD 4-20 mA 10 2 Condense r VF.
3 – 8 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Digital Output Boards The digital output board con ver t signals ge nera ted by the Vission 20/20 program into 120V ac signals th at can be ene rgiz e or signal othe r device s.
3 – 9 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Digital Input Boards The digital input board c onv ert 120Vdc signals from ex- tern al devices to sign al for the Vission 20/20 program. All the signals are digital in tha t the only t wo states a vail- able or eithe r on or off .
3 – 10 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Digital In -Out Boards The digital input - output board con ve r t signals ge ner - ated b y the Vission 20/20 program int o 120V ac signals as we ll as detect ex tern al 120V ac inputs to signal the Vission 20/20 program.
3 – 11 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 3 • Hardware Archit ec ture Analog Input Boards The analog input boar d con ve r t var ying DC signals int o a signal th at can int erpre ted b y the Vission 20/20 pro - gram.
3 – 12 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 3 • Hardware Archit ec ture Analog Input Jumper T ables The follo wing tables are used t o c on fi gure each c hanne l of the an alog input board sign al t ype and range desired b y the opera tor , see T able 2-4.
3 – 13 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 CHANNEL 5 SIGNAL JP-13 JP-14 JP-15 JP-31 Analog Input 5 0-5 V OL T OUT OUT OUT OUT 1-5 V OL T OUT OUT OUT OUT 0-10 V OL T OUT OUT IN OUT 4-20 mA IN OUT OUT OUT ICTD OU T IN OUT OUT RTD O UT OUT OUT IN T able 3-4.
3 – 14 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Analog Output Boards The Analog Output boar d con ve r t signals f orm the Vission 20/20 program into a c urren t ranging from 4mA to 20mA, see Figure 3-7.
4 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 4 • Main Screen Figure 4-1. Main Screen Ove r view The Main Scree n is the fi rst screen enc ount ered whe n powe ring up the Vission 20/20 Pane l, see Figure 4-1.
4 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 4 • Main Screen Figure 4-2. T op Status Bar T op Status Bar The standard view o f the statu s bar shows three piece s of inf ormation.
4 – 3 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Figure 4-3. Paramet er Bar Paramet er Bar The main purpos e of the Parame te r Bar is to dis pla y the common ope ration al parame ters th at the ope rator would be most c oncerned with.
4 – 4 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Paramet er Bar (Con tinued) Unit Start Button: • When pressed, a start dialog box will appe ar tha t will give the ope rat or a number o f run options ; Aut o, Manual, R emote , or auto sequencing, see Figure 4-4.
4 – 5 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Bottom S t atus Bar The bottom sta tus bar giv es the ope rat or ea sy acce ss to some ba sic functions and informa tion. The functions are avail able via the f our button, see Figure 4-5.
4 – 6 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 4 • Main Screen Splash Scree n The spla sh screen is the dynamic por tion of the screen that will c hange a s the oper ator n avig ate s through the Vission 20/20 panel scree n, see F igure 4-6.
5 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 5 • Menu Scree n Ove r view The menu scree n is the launc hing point t o eve r y othe r section of the Vission 20/20 panel soft ware.
5 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 5 • Menu Scree n Instrument calibra tion: • Navigat es to the instrume nt calibration scree n where the opera tor can calibrat e all of the syste m sensors.
6 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 6 • Compressor Co ntrol Ove r view The compres sor c ontrol scree n is where an ope rator can set the ma jorit y of the compre ssor setting s. These se t - ting de fi ne how the compre ssor will ope rate and re spond to ch anging loads.
6 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 As mentioned in the abov e paragraph, the distance o f the proces s variable from the c ontrol se tpoint de te r - mines the siz e of the pulse u sed to move the capac ity slide.
6 – 3 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 The auto-c ycle function will operate only in local “ Auto ” mode and Direct I/O “Remo te Au to ” mode . If the au- to-c ycle fe ature is enabled while running in an y othe r remo te mode , the function will simply be ignored.
6 – 4 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 NO TE VFD installation is no t co ve red in this manu al. A VFD that is no t prope rly installed and con fi gured ha s the pote ntial of cau sing inte rmittent and dange rous problems.
6 – 5 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 This button is active only when c ompressor is in local Auto mode and C ontrol Mode Con fi gured is Suc tion Pressure .
6 – 6 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 gray ed out and henc e , the us er will no t be able to op- era te Pulldown f e ature . This is done to kee p Pulldown & Pumpdown fe atures mutually ex clu sive .
6 – 7 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Load Anticipating The purpose of the lo ad antic ipating algorithm is t o re- duce the amoun t of ov ershoot of the capacity slide posi- tion while the compres sor att emp ts to mee t the con trol setpoint.
6 – 8 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 opera tor c onsult PID tuning guides av ailable from man y diffe re nt sourc e bef ore atte mpting t o tune this PID.
7 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Ove r view The Alarms and T rips screen allows the ope rat or to view and adjust setting s for compress or saf ety and alarm set - tings, see Figure 7-1. Al arms and T r ips Screen.
7 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 selected in the Control Mode dropdo wn selection found in the C ompressor C ontrol scree n. An alarm or trip will be activated on a drop in proces s tempe ra - ture below the se tpoint value .
7 – 3 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Compressor Inhibits The Vission 20/20 use s seve ral st ar t inhibits to preve nt the compre ssor from star ting to prot ect the compres- sor and the refrige ration syste m.
7 – 4 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 F alse Star t • This mes sage appears whe n the compre ssor stop s and the motor auxili ar y contact fails to open.
8 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Ove r view The timers screen allo ws the opera tor to vie w and adjust timer se ttings a ssoci ated with c ompressor operation. There are diff er en t t ypes of time rs that the ope rat or should be aware of list ed belo w , see F igure 8-1.
8 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Low Oil Pre ssure Saf et y Bypass : • This is the length of time in whic h the normal L ow (Run) Oil Pre ssure setpoin ts will be adjust ed by the values of the Pre-lube Oil Pres sure setpoin ts.
8 – 3 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 to re mov e all powe r to the syst em. Low Suction Pressure Sa fe t y Bypas s: • Sets the time that the c ompressor is allo wed to run at low er suction pressure the n would u sually be allow at star t up.
8 – 4 / Blank Vission 20/20 • Ope ration and Se rvice Manual •Vilter/Eme r son • 35391SC 1.8.5153.
9 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 9 • Compressor Scheduling Ove r view This menu allows the ope rator to schedule c ontrol se t - point switc hing during the da y and wee k. This fe ature can be en abled and disabled from the Compres sor Schedule screen .
9 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 as “Unscheduled” if ope rat or does no t want to u se all 4 eve nts per da y . Time: • This setpoint allows se lection of Hours, Minutes and AM/PM values f or an eve nt.
10 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 10 • Compressor Sequenc ing Ove r view Compress or sequencing scree n is where more than one Vission 20/20 panels can be seque nced in net work using Modbus T CP .
10 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 monitor c ompressor load. If Suction pressure / pro- ces s tempe rature goes beyond Lo ad Rat e 1 setpoint offset the n sequencing decisions are made acc ording to Lo ad Rat e 1 timer .
10 – 3 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Statu s Symbols: • Statu s symbols shows statu s of Sl av e compre ssors on the sequencing table .
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11 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 11 • Condense r Control Ove r view This screen allows the ope rator to view and adju st con- dense r setpoint se ttings a ssociated with c ondense r op - era tion.
11 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Condense r Press : • This is the read only paramet er and it dis pla ys the prese nt value of c ondense r pressure. Condense r Setpoint: • This is the c ondense r pressure se tpoint th at needs to be maintained.
11 – 3 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Figure 11-2. St ep Control Scree n Sec tion 11 • Condense r Control selected as L ow Speed F an through combo box. E.g.: Let’s sa y Out #2 is selected as L ow S peed F an in Ste p 2.
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12 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 12 • Ser vice Options Ove r view The Service Option screen allo ws the opera tor the abil- it y to forc e individual digital or analog outputs ON.
12 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 of the volume actua tor . The output is connec ted to termin al 15 and is the 5th LED down on card 1. V olume Decrease Mo tor: • Activates the output as signed to the decre ase input of the volume actua tor .
13 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 13 • Instruments Calibration Ove r view The Instrument Calibra tion screen allo ws the opera tor to de fi ne how the Vission 20/20 will in te rpret the sign al from any devic es attached to the pane l’s an alog inputs.
13 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 device s are prede fi ned and if one is selected, then all the setpoints will be se t f or the opera tor . Cu stom Devic e : • This option allows the opera tor t o choose the mini- mum and maximum value of the instrume nt be ing used.
13 – 3 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Analog Inputs This section of the Calibration screen allo ws the opera- tor to de fi ne the parame te rs of an installed auxiliar y ana- log instrument.
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14 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 14 • Slide Calibration Ove r view The Slide Calibration scree n is us ed in calibrating the slide actuators and to establish Vission 20/20 con trol paramet ers.
14 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 mechanical st ops f or normal slide tra ve l. These so f t - ware limits purpose is to pre ve nt the slide from ac tu- ally hitting the mechanical st ops which c ould result in a number o f undesirable c onsequenc es.
14 – 3 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 4. F rom the main scree n select the Menu butt on. 5. On the menu scree n select the Slide Calibration but - ton.
14 – 4 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Command Shaft Rotation The following table de scribes the rotation direction required by the actuat or . Ev er y optical ac tuat or ha s the abilit y to be wired to rotat e in eithe r direc tion.
14 – 5 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Slide V alve T roubleshooting Guide The Analog output card o f the Vission 20/20 produce s a 4–20mA signal t o any a ttached devic es.
14 – 6 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 T able 14-2. Slide V alve T roubleshooting Guide (2 of 2) Problem R eas on Solution There is a rapid clicking noise whe n the mot or is ope rating. (Continued) The position se nsor’s EEPROM memory ha s failed.
14 – 7 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Slide V alve Actuator T roubleshooting Guide Blink Code Vilter actuat ors communicate proble ms discove red by the inte rnal di agnostics to the tec hnici an by LED blink c odes.
14 – 8 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 14 • Slide Calibration T able 14-3. LED Blink Codes and T roubleshooting Guide (2 of 2) Flash Pa ttern * = ON - = OFF Meaning *--*--*----------------- The motor is o ve r hea ted.
15 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 15 • T rend C har t Ove r view This screen allows the ope rat or to view and adju st set - tings f or the tren d chart, see Figure 15-1. T rend Ch ar t Screen.
15 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 zoom le ve l ope rator can vie w 3 minutes o f trend d ata and Zoom In butt on will be inactive . At minimum zoom le ve l ope rator can vie w full 120 hours of trend data and Z oom Out button will be in active.
15 – 3 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Figure 15-2. T rend Setup Screen Sec tion 15 • T rend C har t Setup The opera tor can modif y options f or pen se lec tion drop - down box from tre nd setup screen, see Figure 15-2.
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16 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 16 • E vent List Ove r view This screen is designed t o displ ay c ompressor e ve nts in chronological orde r .
16 – 2 / Blank Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153.
17 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 17 • Input / Output Ove r view This screen dis plays “Liv e Data” of all the an alog points and digital points being monit ored, see Figure 17-1.
17 – 2 / Blank Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153.
18 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 18 • Auxiliar y Input / Output Ove r view The Auxiliar y Input/Output (I/O) section of the Vission 20/20 gives the ope rator fl exibilit y to add periphe ral instruments and/or de vice s such a s motors, valv es and solenoids.
18 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Inhibit Check: • Selec ting this checkbox e nables the inhibit function of the Vission 20/20 f or the desired digital input.
18 – 3 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 • High Alarm: • This de fi nes the upper limit o f the input value , that whe n exceeded will gene rate an alarm. • Low T rip: • De fi nes the lower limit o f the input value that when ex ceeded will ge nerate a trip .
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19 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 19 • Configuration Ove r view The con fi guration screen is where mo st of the Vission 20/20 fe ature s are en abled and con fi gured, see Figure 19-1.
19 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 logging and troubleshooting. Se tting these parame ter will set the har dware clock e mbedded in the Vission 20/20 CPU.
19 – 3 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 due to re pea ted mot or star ts. The operat or ha s 3 choic es of prot ection. Hot star ts allows only a certain number of star ts per hour bef ore setting an hour t o the anti-rec y- cle time r .
19 – 4 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 19 • Configuration Compressor Contro l Vilter c ompressors t y pically run in one of t wo con trol modes, suction pressure or proces s te mpera ture con- trol, see Figure 19-2.
19 – 5 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 19 • Configuration Condenser Con trol The values in this section enables the c ondenser con- trol fe ature o f the Vission 20/20.
19 – 6 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 19 • Configuration Digital Inputs The Vission 20/20 ha s seve ral digit al inputs that the op- era tor can choo se how the input will be u sed.
19 – 7 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Analog Inputs The Vission 20/20 ha s seve ral Analog inputs that the opera tor can choo se how the input will be u sed.
19 – 8 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Figure 19-5. Con fi guration Screen - Page 5 Analog Outputs The Vission 20/20 ha s seve ral Analog outputs that the opera tor can choo se how the outputs will be u sed.
19 – 9 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Figure 19-6. Con fi guration Screen - Page 6 I/O Con fi guration If any addition al I/O card are added to Vission 20/20, this is where the se cards are e nabled f or us e by the Vission 20/20 algorithms.
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20 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 20 • Da ta Backup Ove r view The databa se backup screen pro vides the ope rat or a way to extract informa tion out of the Vission 20/20 f or backup purposes or di agnostics, see Figure 20-1 Da ta Backup Screen.
20 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Load: • Selec ting load allows the ope rator t o load d ata from a USB fl ash drive t o the Vission 20/20 using the in- form ation pro vided fur ther down the scree n.
20 – 3 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Figure 20-2. Data Backup Scree n - Migrate and F a ctor y R eset Migrate : Loading d ata from an older v ersion of the Vission 20/20 soft ware to a ne wer one can be c omplicated due to dif- fe renc es in databases.
20 – 4 / Blank Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153.
21 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 21 • Mainte nanc e Ove r view The maint en ance scree n is a conve nient plac e to k eep track of the the main te nanc e per formed and any upc om- ing maint en anc e recomme nded by Vilt er .
21 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Not es The note s tab allows the oper ator t o mak e notes to an y othe r personne l tha t might hav e access to the Vission 20/20. Log The maint en anc e log tab lists all the maint en ance ta sks performed in desce nding order .
22 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 22 • User Access Ove r view The use r acc ess scree n is wher e all opera tors go to log in.
22 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Login The login tab is where an ope rat or will en te r the use r s name and pa sswor d in orde r to g ain acce ss to Vission 20/20 screens.
22 – 3 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 eithe r select the use r name from the ope rators win- dow or en te r the us ern ame manu ally by t ouching the en tr y box and en te ring the name vi a the pop-up key b o a r d.
22 – 4 / Blank Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153.
23 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 23 • Help Scree n Ove r view Use this scree n to rec eiv e help on other se tpoint scree ns con tained within the soft ware . These he lp fi les can be acces sed from any scree n.
23 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Back: • Pressing the back button will rewrit e the fi le/folder list with the previous f older leve l. Displa y Window: • This window displ ays the c ont ext of the manual.
24 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 24 • T win Screw Control Ove r view The Vission 20/20 is capable of ope rating a twin screw compres sor from a number o f diffe rent manufacturers.
24 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Oper ati on Once the twin screw is con fi gured, its operation is ve r y similar a s the single screw and all options th at are a vail- able for single screw c on fi gura tion are also avail able for twin screw .
25 – 1 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 25 • Cool Compression Contro l Ove r view The cool c ompression c ompressor operation is simil ar to the standar d single screw compre ssor units, ex ce pt there is no extern al oil coole r to the unit.
25 – 2 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 en able Superhe at Monitoring on the screen. • As previously described, C ool Compression compres sor does no t hav e an oil pump. Instead it ha s a suction oil injec tion solenoid to pro- vide oil and liquid ammonia f or lubrication and cooling.
25 – 3 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 25 • Cool Compression Contro l • Auto L oad Timer • This time r de fi nes the maximum time th at the Auto Lo ad opera tion will be eng aged.
25 – 4 Vission 20/20 • Opera tion and Service Manual •Vilte r/Emerson • 35391SC 1.8.5153 Sec tion 25 • Cool Compression Contro l opera tional diff ere nces that are mo stly as soci ated with the compres sor saf etie s: 1.
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35391SC 1.8.5153 (11/12) Emerson and Vilter are trade marks of Eme rson Electric Co. or one of its af fi liated companies. © 2012 Emerson Clim ate T echnologies, Inc.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Emerson 20/20 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Emerson 20/20 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Emerson 20/20 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Emerson 20/20 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Emerson 20/20, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Emerson 20/20.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Emerson 20/20. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Emerson 20/20 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
