5.The change of user setup[3]

1.Press user setup on main display.

2.Input password and save (initial password is“0000")

3.Press user setup key on user setting [1].

USER SETUP[1]

Run Value: .00Kgf/cmPump1RunValue：03.00Kgf/ai000SECPump1StopValue:03.00Kgf/cn000SECStep RunValue ：03.00Kgf/cm000SECStepStopValue :03.00Kgf/cn000SECPump Shift Time： 000HOUR

2.SAVEBUTTONINPUT

4.In user setup [2], move to schedule setup with cursor.

5.Choose desire figure from " 0 " to { } ^ { \mathfrak { s o } }

0:Not used；1:Monthly operation；2:Weekly operation；3:Timely operation

6.After changing to operation setup,make sure to press SAVE Key.

Set value is not changed until SAVE input key is pressed.

7.After pressing SAVE Key, press user setup to move user setup [3].

8.Inuser setup[3], choose desire menu with cursor.

USER SETUP[3] USER SET 3 MONTHLYSETUP CURSORMOVEMENT 工 ENG 6 JAN:D0.0kgf/cm JUL:o.0kgf/cm T 中 FEB:□0.0kgf/cm AUG:o.0kgf/cm OPEA 9 3 MAR:O.0kgf/cm SEP:.0kgf/cm APR:0.0kgf/cm OCT:.0kgf/cm TEST 0 MAY:00.0kgf/cm NOV:o.0kgf/cm JUN:00.0kgf/cm DEC: 0.0kgf/cm 中 VEFDT MAIN. SAVE DEL. DIRECTIONOFCURSOR

9.Inusersetup[3],choosedesirevaluewithcursor.

USERSETUP[3] USER SET
MONTHLY SETUP CURSORMOVEMENT ENG
JAN:DQ.Qkgf/cnJUL:OO.Okgf/cm²
FEB:0O.0kgf/cmAUG:0O.0kgf/om OPER DATA
MAR:0O.0kgf/cmSEP:00.0kgf/cm
APR:00.0kgf/cmOCT:00.0kgf/cm TEUST 1
MAY:00.0kgf/cmNOV:0O.0kgf/cm
JUN:0O.0kgf/cmDEC:OO.0kgf/cm VFT MAI. SAVE DEL

10.Change the desire value with figure Keys.

11.After changing to operation setup,make sure to press SAVE Key.

Set value is not changed until SAVE input keyis pressed.

Changeable itemsinusersettings[3] asbelow.

-Monthlyscheduledoperation : Anyoperationbymonthlycanbescheduledandexecuted. To change setings,select monthly operation from the scheduled operation in “user seting [2] using 1 Key,then press ‘usersetting button'to move to “user setting [3]and change it. Monthly scheduled operation.

1. Using

↑ Key,select item to be set.

2.Select required position in the itemsusing

3. Using 1 Key,change to required value,then make sure to press SAVE Key. ※Setvalue is not changed until input key is pressed.

USERSETUP[3]
MONTHLYSETUP
JAN:O.0kgf/anJUL:0O.0kgf/cm FEB:O0.0kgf/cnAUG:00.0kgf/cm MAR:0O.0kgf/cSEP:0O.0kgf/cm APR:00.0kgf/clOCT:00.0kgf/cm MAY:0O.0kgf/cmNOV:0O.0kgf/cm JUN:00.0kgf/cDEC:00.0kgf/cm

<Screen configuration of monthly operation>

-Weeklyscheduled operation \because Any operation byweeklycan be scheduled and executed. Tochange setings,select weekly operation from the scheduled operation in“user setting [2] using 2 Key,then press‘user seting button'to move to“user seting [3] and change it. Weekly scheduled operation.

1. Using ↑ ↓ Key,select item to be set.

2.Select required position in the items using

3.Using Key,change to requiredvalue,thenmakesure to press SAVE Key. /ideontimes Set value is not changed until input key is pressed.

USER SETUPI3] WEEKLY SETUP SUNDAY .00Kgt/ MONDAY 00.00 Kg/ TUESDAY 00.00Kg/ WEDNESDAY:OO.OO Kgf/ THURSDAY :00.00Kg/m FRIDAY :00.00kgt/ SATURDAY :00.00Kg/ <Screen configurationbyday operation >

-Scheduled operationby time frame:Any operation by time framecan be scheduled and executed.

To change setings,select by-time frame operation from the scheduled operation in“user setting [2] using 3 Key,then press ‘user setting button'to move to“user setting [3] and change it.

1. Using 1 Key,select item to be set.

2.Select required position in the items using

3.Using Key,change to required value,then make sure to press SAVE Key. \ast Set value is not changed until input key is pressed.

USERSETUP[3]
TIME SETUP
0:00\~01:59-00.012:00\~13:59-00.0 02:00\~03:59-00.014:00\~15:59-00.0 04:00\~05:59-00.016:00\~17:59-00.0 06:00\~07:59-00.018:00\~19:59-00.0 08:00\~09:59-00.020:00\~21:59-00.0 10:00\~11:59-00.022:00\~23:59-00.0

<Screen configuration by time frame operation >

Chapter #3

Keyoperationof installer

1.Key operation of installer setting
2.Displayofusersetting
3. Change of installer setting(1)
4.Change of installer setting(2)
5. Change of installer setting(3)

1. Installer Setup Key

2.Display of Installer setup

User setup display [1] User setup disay@ setup display [3]MANAGER SETUP[1] MANAGERSETUP[2] ETUP[3]Min Out Rate :100% Max Pressure 10.0kgf/a NOTUSEDPValue ：080 Winter NOT USED ：085Value ：030 Password ：0000 ：9600 bpsDValue ：010 Initialize :NO ：0000msBad Zane ：00.3Kgf/m :RS-485SENSOR Value :16.0Kgf/cmSENSORAdjust:100.3Kgf/mt NOT USEDRunType :FIXMAIN PUMP :40kbps

3.The change of installer setup[1]

1.Press ENG SET key on main display.

2.Input password and save (initial password is ^ { u } 0 0 0 0 ^ { \prime \prime } 0

3.Ininstallersetup[2],movetodesire itemwithcursor.

2.SAVEBUTTONINPUT

3.Ininstallersetup[3],movetodesireitemwithcursor.

5.Seting value canbe changedby figure Keys.

11.After changing to operation setup,make sure to press SAVE Key.

Set value is not changed until SAVE inputkeyis pressed.

MANAGER SETUP[1]

Min Out Rate
PValue
IValue
DValue
Bad Zane
SENSOR Value
SENSOR Adjust
Run Type

100%
080
030
010
00.3Kgf/cm²
16.0Kgf/cm
100.3Kgf/cm
FIXMAINPUMP

Changeable itemsinusersettings[1]asbelow.

-Theminimumoperationrateof inverter.

Set theminimum inverteroutput in % .Wheninverteroperates,set 6 0 H z at 1 0 0 % ,orset value is 5 0 % thenoperate from 3 0 H z 元
Changeof theminimumoperation rate if inverter.
(Example:Tochange 50 % to 6 0 % ）

2. Initiallythe first " 0 " of the'050'blinks.

3.Enter in order of O,6andO using 0 9 Key.

4.After changing to required value,make sure to press SAVE

Key.

/ideontimes Set value is not changed until input key is pressed.

- Proportional factor（P）:Itis aproportional factor in PID control variables. Range:1\~100 Change of proportional factor (P) setings.

(Example:Incase of to change 80 to 90)

1. Using Key,select PValue:080

2.Initiallythe first " 0 " ofthe \mathbf { \bar { \rho } } _ { 0 8 0 } , blinks.

3.Enter in order of O,9andO using 0 9 Key.

4.After changing to required value,make sure to press

SAVE Key.

/ideontimes Setvalue is not changed until input key is pressed.

-Constant of integration (I):It is a constant of integration in PID control variables.

Range:1\~100

Change of constant of integration（I) settings.

(Example: In case of to change 30 to 40)

1. Using ↑ Key,select IValue :030

2.Initiallythe first " 0 " ofthe { } ^ { , } 0 3 0 ^ { \prime } blinks.

3.Enter in order of O,4and0 using 0 9 Key.

4.Afterchanging to required value,make sure to press

SAVE Key.

/ideontimes Set value is not changed until input key is pressed.

-Constant of differential(D）: It isa constant of differential in PID control variables. Range:1\~100

Change of constant of differential (I) setings.(Example:In case of to change 10 to 20)

1. Using 1 ↓ Key,select （20 DValue:010

2. Initially the first‘O'of the * * 1 0 ^ { \prime } blinks.

3.Enter in order of O,2and O using 1 9 Key.

4.Afterchanging to required value,make sure to press SAVE Key.

\ast Setvalue is not changed until input key is pressed.

- Dead zone:It's the detection range of non-flow.It works when only one inverter operates. le,if only one pump operatesand current state of that current pressure > (setting pressure-Dead zone)is sustained for more than 20 seconds,inverter decelerates in order to inspect thestateof non-flow.Evenif itdecelerates,whencurrent pressure > (settins pressure-Dead zone),it stops

Range \phantom { - } 0 . 0 ~ 2 . 0

Change of dead zone settings (Example: Incase of to change 0.3kgf/cm²to 0.4kgf/cm²)

1. Using Key,select

Bad Zane:00.3 Kgf/c

2.Initially the first‘0'of the‘Oo3'blinks.

3.Enter in order of O,O and4 using 0 9 Key.

4.After changing to required value,make sure to press SAVE Key.

/ideontimes Set value is not changed until input key is pressed.

-Maximum sensor value : Enter the maximum value as faras pressure sensor measures.

Range：1.0\~25.0

Change of maximum sensor value.

(Example:incase of to change 1 6 . 0 {kg } { f } / {cm } ^ { 2 } to 20.0kgf/cm²)

1. Using Key,select （20 SENSOR Value ：16.0 Kgf/cm

2.Initially the first‘1'of the * \ 1 6 . 0 ^ { \prime } blinks.

3.Enter in order of 2,OandO using 9 Key.

4.Afterchanging to required value,make sure to press SAVE Key.
※Set value is not changed until input key is pressed.

-Corrected value of sensor \because This function corrects the deviation between the analog or digital pressuregaugein the pipingand current pressure indicated in panel LCD

Range： 1 . 0 ~ - 1 . 0

Change of sensor maximum value settings.

(Example:incase of to change16.0kgf/cm²to 20.0kgf/cm2)

1. Using Key,select SENSOR Adjust :00.3Kgf/cm

2.Initially the first " 0 " of the * 0 0 . 3 ^ { \mathfrak { n } } blinks

3.Enter in order of O,Oand 4 using 0 9 Key.

4.After changing to required value,make sure to press SAVE Key. \ast Set value is not changed until input key is pressed.

-Operating method:To set operation method of pump.

1:Operating by fixed-inverter Inverter is fixed for one pump operation,and when all pumps stop,move the inverter.

2:sequential1operation Sequential operation by pressure sensor without inverter(Automatically switched when inverter failure.)

3:Sequential2operation

Sequential operation by pressure switch without inverter or pressure sensor (manualy switched). Change of operation method settings. (Operating method:Example-Incase of change main pump fixed method to sequential 2operation)

1. Using Key,select Run Type:FIX MAIN PUMP

2.Enter 3 with using 1 0 \vert - \vert 9 \vert k e y

(1:Operating by fixed-inverter；2:Sequential1operation;3:Sequential2operation) 3.Afterchanging to required value,makesure to press SAVE Key. /ideontimes Set value is not changed until input key is pressed

4.The change of installer setup[2]

1.Press ENG SET key on main display.

2.Input password and save (initial password is " 0 0 0 0 " ）

3.Press ENG SET on installer setup[1].

2.SAVEBUTTONINPUT

4. In installer setup [2],move to desire item with.

5. Ininstallersetup[2],move todesire itemwith.

6.Setting value canbe changedby figure Keys.

7.Afterchanging to operation setup,make sure to press SAVE Key. Set value is not changed until SAVE input key is pressed.

Thechangeable itemsin installersetting[2]areasbelow.

- Pump maximum pressure :Entering the maximum pressure of pump. Changing of pump maximum pressure settings.
(Example:In case of to change 10.0 to 20.0)

. Using Key,select （2 Max Pressure:10.0Kgf/cm

2.Initially the first‘1'of the \because 1 0 . 0 ^ { \prime } blinks.

3.Enter in order of 2,Oand0 using 1 9 Key.

SAVE 4.After changing to required value,make sure to press Key.

/ideontimes Setvalue is not changed until input key is pressed.

-Preventing frozen rupture:Inorderto preventfrozen rupture in cold season,if all pumps does not operate foroneminuteatbelow - 1 ^ { \circ } \mathsf { C } ,main pump operates in 15Hz for15 seconds thenstops.After stopping,the main pump is transferred to next pump and operates as same condition in turns. Change prevention of frozen rupture seting.
(Example: In case ofchange“No use"to“Use".）

1. Using ↑ ↓ Key,select Winter:NOT USED

2.Enter by using Key. 0 : No use, :Use

3.Afterchanging to required value,make sure to press SAVE Key.
/ideontimes Setvalue is not changed until input key is pressed.

-Settingof installer's password:Changing installer's password. Changeof installer's password. (Example:Tochange“Installer's password:Oooo"to“User's password:1234")

1. Using Key,select Password:0000

2. User's password \because Initially the first‘O'of the‘Ooo'blinks.

3.Enter by using 9 Key.

4.Afterchanging to required value,makesure to press SAVE Key.
\ast Setvalue is not changed until input key is pressed.

- System initializing \because Initializesettingvaluesto ex-factoryvalue Changesetting of system initialization. (Example:In case to change“No”to“Yes".)

1. Using ↑ ↓ Key,select （204号 Initialize:NO

2.Enter by using 0 1 Key. 0 : No use, 1 :Use

3.After changing to required value,make sure to press SAVE Key. \ast Set value is not changed until input key is pressed.

1.Press ENG SET key on main display.

2.Input password and save (initial password is " 0 0 0 0 " . ）

3.Press ENG SET on installer setup[1].

MANAGERSETUP[1]

Min Out Rate
PValue
lValue
DValue
Bad Zane
SENSOR Value
SENSOR Adjust
Run Type

2.SAVEBUTTONINPUT

100%
080
030
010
00.3Kgf/cm²
16.0Kgf/cm²
100.3Kgf/cm
FIXMAINPUMP

4.Press ENG SET on installer setup[2].

5.Ininstallersetup[3],movetodesire itemwithcursor.

6.Settingvaluecanbechangedby figure Keys.

7.After changing to operation setup,make sure to press SAVE Key. Set value is not changed until SAVEinputkey is pressed.

Thechangeable items inusersetting[3]areasbelow.

-RS485:Selectwhether to use RS485communication ornot. Change of RS485 setting. (Example:In case to change“Nouse"to“Use".)

1. Using Key,select RS-485:NOT USED

2.Enter byusing 0 1 Key. 0 : No use, ：Use

3.After changing to required value,make sure to press SAVE Key. /ideontimes Set value is not changed until input key is pressed.

-Slave ID:Set Slave ID.

Range:1\~255

Changesetting of Slave ID.

(Example:In case of to change 85 to 96)

1. Using

↑ ↓ Key,select （20 SLAUE ID:085

2. Initially the first‘0'of the‘O85'blinks.

3.Using Key,enterby the order of 0,9 and 6.

4.Afterchanging to required value,makesure to press SAVE Key.
\ast Set value is not changed until input key is pressed.

-BAUD RATE:Select communication speed.

(0:1200bps；1:2400bps；2:4800bps;3:9600bps;4:19200bps)

ChangesettingofBAUD RATE.

(Example: In case of to change 9600bps to 1200bps)

1. Using Key,select （20 BAUD RATE : 9600bps

2.Enter by using Key.

0 :1200bps; :2400bps; 2 :4800bps; 3 :9600bps; 4 :19200bps;

3.Afterchanging to required value,make sure to press SAVE Key.

※Set value is not changed until input key is pressed.

-DELAYTIME:Set delay time of communication responding.

Range:0\~9999

Change DELATTIME settings (Example: In case of to change O to 20)

1. Using ↑ Key,select

DELAYTIME： 0000ms

2.Initially the first‘O'of the‘OooOms'blinks.

3. Using

Key,select the positionto bechanged in * 0 0 0 0 { m s } ^ { \prime }

4. Using 0 9 Key,enterby order of O,O and 2.

5.Afterchanging to required value,make sure to press SAVE Key.
※Set value is not changed until input key is pressed. -DRIVEMODE:Setting foroperation order.
Controller: It isoperated by Start/Stop switch on panel.
RS-485:It is operated by 485 communication.
/ideontimes RS485 canbeusedbysetting in DRiVEMODE.
/ideontimes In case of RS-485,It can't operated by Start/Stop switch on panel.
The change of DRIVEMODE setting.(Controller RS-485)

1. Using Key,select DRIVE MODE :Controller

2.Input setting mode with Key. 0 : Controller; :RS-485.

3.Afterchanging to required value,make sure to press SAVE Key. /ideontimes Setvalue is not changed until input key is pressed.

-CAN:Select whether to use CAN communication or not. Change CAN seting CAN. (Example:To change“Nouse"to“Use")

1. Using Key,select （20 CAN:NOT USED

2.Enter using 0 Key. 0 :Nouse; Use.

SAVE 3.Afterchanging to required value,make sure to press Key. /ideontimes Set value is not changed until input key is pressed.

-BAUDRATE:Select communication speed.

（0:40kbps1:50kbps2:100kbps3:200kbps4:250kbps）Change setting of BAUD RATE.

(Example: In case of to change 40kbps to 50kbps)

1. Using ↑ √ Key,select BAUD RATE : 40kbps

2.Enter 1 among 0 Keys.

0 :40kbps; :50kbps; 2 :100kbps; 3 :200kbps; 4 :250kbps;

3.Afterchanging to requiredvalue,makesure to press SAVE Key. ※Set value is not changed until input key is pressed.

Chapter #4

Operation History Key

1.Confirmation of pump operation history
2. Confirmation of alarm history

1. Confirmation of pump operation history

1.Press operation Data key on main display.

2.Inoperationdata,move to desire menu with cursor.

3. It shows pump operation history.

If you want to deleteall pump operation history, press Del key.

Recover tothedisplayof pumpoperation history

Deldte of pump operation history

2.Confirmaton of alarm history

1.Press operation Data key on main display.

2.Press operation data key on operation data display.

3.Inalarmhistorydisplay,movetodesiremenuwithcursor.

LISTOFALARM&TRIP

HIGHPRE.ALARM

LOWPRE.ALARM TRIP OF PUMP FAULT OF INVERTER LISTOFLOWWATERFAIL LIST OF SENSOR FAIL

4.Inalarm history display,move to desire menu with cursor.

LISTOFALARM&TRIP

HIGHPRE.ALARM

LOWPRE.ALARM TRIPOFPUMP FAULT OF INVERTER LISTOF LOWWATERFAIL LISTOF SENSOR FAIL

5. It displayalarm history.

- It shows latest 10 alarm history.
- If you want to deleteall alarm history,press DEL key.

Recover to thedisplayof pump operation history

Deldte of pump operation history

Chapter #5

TestOperationKeysoftestoperation

Test Operation Key

It isused for checking direction of motor rotation.

AfterturningofftheSTOP/STARTswitchonpanel,pleaseoperate this function.

1.Press Test Run key on main display.

2.In the test run display,Choose desire pumpwith cursors.

3.Use left/right cursor to select pump operationmethod.

4.Using

Key,change the sensor correction valueandMin operation ratio.

Chapter #6

Other Keys

1. Inverter reset Key

V.F.D TESET

Keyisusedto re-start inverterin invertererrorstate.

V.F.D Up to2 sets of inverters can be used,and pressing TESET Key resets the inverter in trouble among two inverters (Two invertersareoptional)

2.Main screen Key

MAIN Pressing DISP. Key enables to move to initial screen.

3.Alarmdisplayand reaction

Whenalarm is given,buzzersoundsand lamp blinks.Atthe same time,thealarmnotesare displayed on LCD screen.To stop the buzzer, just press any key of the controller keys.Lamp keeps blinking until theroot causeofalarmingis fullycleared.

N747D Ver3.00 Booster PumpSystem 99% 2008/11/1311:00[THE] SetValue:03.00Kgf/cm RunValue：03.0oKgf/cm SENSOR FAIL PUMP1 PUMP2 PUMP3 PUMP4 PUMP6 PUMP6 INV RUN RUN RUN RUN RUN

Displaying items on LCD screen when alarm is given.

1.Nowater inthe pipe line——Alarming low level
2.MotoroverheatingP1TRiP—Motoroverloaded
3.Sensor isabnormal- -Sensor trouble
4.Inverter isabnormal (Inemergent operating)—Inverter trouble.
5.Pressure is too high—High pressurealarm
6.Pressure is too low—Low pressure alarm

Ifautomatic operation is notavailable under lowpressurealarming,please takeone of belowmeans.

1.Set one of the front panel switch of pump 1,pump 2,pump 3,pump 4,pump 5and pump 6(if there are 6 pumps)as MANU,so that one pump can be started and increases the pressureup to the lowalarm seting pressure.
2.Press“In Test Operating" key among the front switches,so that one pump can be started and increases the pressure up to the lowalarm seting pressure.
3.Press“Stop/Start"switch of the front panel to make stop,then press again to start.

Chapter #7

Appendix

1.Control board arrangement and description
2.Check items
3.Procedureand manual for pump test operation
4.Emergentoperation
5.RS-485communication

1.Control board arrangement and description.

Pump option board

Inverteroptionboard

2.Check items

1.Nooperationis startedwhenpowered ON:

(1) Check power voltage (208V\~440V) (2) Check power,wire short and contact terminals.

2.When powered ON,only LCD Back Light is turned on:

(1)Turn VR counterclockwise with PIN driver.
(2) Check cables connected to LCD.

3.No front Key works:

(1) Check cables connected to control board Key.

4.Aftersetfront panel switches for pump #1,Pump #2and Pump #3atAUTO position,no pump is not identified on the LCD screen:

(1) Check switch contact points.
(2) Verify theshortages of 5.PENTand 12.CG wire of Pump-OPT board.
(3) Check the contact pointof 5.PENT and12.CG wire of PumpOPT board.(VerifyLED ON state of Pump-OPT board.)

5.“Start/Stop"switch of the front panel does notwork:

(1) Check switch contact points.
(2) Verify the shortages of 20.CG and 25.Run wire of main board.
(3) Verify the contact points of 20.CG of main board and 25.Run wire.(Verify LED ON state of main board.)

6.The output of inverter is not sufficient; (EX.While front LCD shows 1 0 0 % ,internal inverteroperates in 50Hz.):

(1)Adjust DAC value in installer's settings. 7.While the inverter is displayed on front LCD,pump does not work: (1) Check wire shortage and contact points of 18.RloC and 19.RloA of main board.

(2) Verify if anyshort raises in 18.RlOC and 19.Rl0A wire.(RUN signal work when short) (3) Verify the shortages and contact points of 35.VO0 and 36.CGwire. (4) Check DC voltage of 35.VO0 and 36.CG wire in main board.(EX. DC 5 V = 3 0 H z ,DC10V=60Hz)

8.MC does not work in each pump:

(1) Check if each MC power is 220 V.
(2)Verify shortagesand contact pointsof 1.IPA,2.IPC,3.DPA and 4.DPC wire in Pump-OPT.

9.There is big gap between analog pressure gauge and the current pressure of LCD screen:

(1) Check the maximum pressure sensor value in use.
\left( 2 \right) Adjust the maximum pressure sensor value in the installer's seting screen.

10.Analog pressure gauge is very close to the current pressure of LCD screen:

( 1 ) Adjust sensor correction value in the installer's setting screen.

11.Main pump and auxiliary pump operate continuously;

(1) Check the rotation direction of the pump (it's possible in test operating).
(2) Re-set the operating pressure and time of the auxiliary pump.

12.Auxiliary pump operates frequently:

(1) In the user seting screen,re-set the operating pressure and time of auxiliary,sequential stop pressureandtime.

13.Onlymain pump operates:

(1) In the user setting screen,re-set the shift time of main pump.
(2) Shift the pump by operator with the front switch.

14.Frequent starting phenomenon happens in emergent operation due to the inverter trouble:

(1) In the user seting screen,re-set the sequential operation pressure and time,sequential stop pressureand time.

15.It ischanged to“sequential operation 2 " byuser:

(1)Adjust the deviation of pressure switch.

16.Various alarms raise (Buzzer,Lamp operates):

(1)Enter front numeric Key and initial screen Key once.(Buzzer OFF,Lamp OFF) (2) Check the caused troublesand take corrections.

17.Auto-operation is not available in low pressure alarming:

(1) Set the pressure time of low pressure alarm more than 10 seconds,then stop the front panel "START/STOP"switch and re-start. (2) Set one of the front panel switch of pump 1,pump 2,pump 3and pump 4as MANU,so that one pump can be started andincreases the pressure up to the low alarm setting pressure.

18.Control of inverterisnotavailable:

(1)Check the inverter control method-voltage method,or current control method; (2)If inverter control method is by current,check whether the J3 switch of main board is lout direction.If the control method is byvoltage,it should be opposite direction （Ex-factory default setting is voltagecontrol method)

3.Pump test operation

Thank you for your selection of our boost pump system.In this section,check items,procedures and manuals for test operation are summarized for our boost pump users.

The least items to be entered essentially for test operation must be entered.

1.Check items before test operation- Check site circumstance.

(1) Iswatersufficient in water tank? (2)Is power connected? (3) Is the piping connection well?

2.Procedure of pump test operation.

3efore thesite testoperation,makesureto confirmbelowitems.

(1) Haswaterbeensuppliedto the site?

(2) Is the wiring of panel and motor well connected. (3) Is the power supplied?

3.Manual for boost pump system test operation. (1) Check if water is sufficient in the water tank. (2) Check if power cables of motor and panel are connected. (3) Open the water tank valve and inlet/outlet valves of pump. (4)Remove allair by opening air cocks of inlet and pump,until water is dispensed only. (5) Close air cocks. (6) Turn on all internal NFB (breaker) of panel. (7)Turn on the power switch of the panel front. (8)If it is 3 pump system,then set switches of PUMP#1,PUMP#2and PUMP#3 at AUTO position. (9) Press test operation Key on the controller(the rotation direction of the motor fan is counterclockwise).Press Key once then direct-input operation starts,press twice then stops.Again press Key once then inverter starts,presstwice then stops.If the motor rotation direction is wrong,re-connect of the direct-input starting in RSTor RTS order.In case of inverter starting,change the inverter output terminal from UvWto UWV. (10) Once rotation direction is confirmed,then verify if the set pressure of controler LCD screen is the desired input value (in case of change set pressure, correct the date.set pressure according to this manual printed inside of the panel). (11) Whenallstepsare completed,set“START/STOP"switch at“START"and start the operation.

4.Emergency operation

Types of emergent operation Emergent operation system is required against to any emergency of water supply pump for its special requirement.In case of inverter failure,automatic emergent operation /sequential 1operation/sequential2operation.

1.Automaticemergentoperationin inverterfailure

Reason:Incaseofinverterfailure

Startingmethod:If inverter is infailure,RPMof mainpump isout of control.

Even in such situation,as water shallbe supplied until A/S teamarrives,therefore,automatic emergent operation(pressure method) is carried out.

Its operating principle is;pipe pressure can be detected by pressure transmitterthen normal operation is sustained by program control of controller inallfunctions such as shift operation excluding RPM control.

Setstarting deviation pressure value becomes the condition of pump starting when operation mode isswitched to emergent automatic operation.Seting of starting deviation pressure is available, however its initial value is setas 0.5bar.

In this case,if set pressure is 4.0bar,then sequential auxiliary pump starts if it's not above 3.5bar. Asthe condition to stop is depend on the set value of auxiliarystop deviation pressure,if auxiliary stop deviation value is 0.5bar,then it shall be 4.5bar to stop the pump sequentially. In this process,after all pumps stop and then if it's 3.5bar or less then it operates again. The stating deviation pressure can be corrected through sequential operation pressure and sequential stop pressure itemsof “Usersetting [1]".Please note that if the value is too smal,the frequency of starting/stop increases. Please callour A/S team to get support while the pump operates under emergentautomatic operation mode.

Indications :In case of inverter failure,auto emergent operation is carried out automatically and the failure notice is indicated in main screen.In the bottom of present pressure of initial screen,the notice of “Inverter isabnormal"is indicated,sopleasemake sure tocheck it indaily check.

2.sequential1operation

Reason \because Whenreplacingofabnormal inverter

Starting method:Starting method is sameas the principle of automatic emergent operation in case of inverter failure.In “sequential 1operation",emergent operation iscarried out forciblyas because water can be supplied only by pump when inverter shallbe replaced due to inverter failure.sequential1operationcan becarried out through“Installer'ssetting".“Installer'ssetting"isonly forauthorized engineers,but not disclosed to general consumers due to the possibilities including serious failure or accident by unauthorized change of settings.

Caution:User's setting mode shall be accessed only by authorized engineers.

Reason:In case inverterand pressure transmitter failedat the same time.

Starting method:Operationof ON-OFFcontrol method is carried on by Max/Min set value of pressure switch.As it is under control of controller,general functions such as shift operation can be carried out.Also water is supplied continuously,however,the pipe pressure is little bit unstable than RPM control due to the characteristics of ON/OFF of pressure switch.Therefore,in case of sequential2operation,pleasecall ourA/S teamimmediatelyto getsupport.

3.sequential3 operation

Reason:This is the last emergent operation method to be carried when normal operation is unavailable due to the failure of most of core components such as inverter,pressure transmitter,pressure switch, controller and etc.

Starting method: Minimal water can be supplied through operation with #1 pump only by pressure switch,if the“operation select"switch of the panel is set at emergency position manuall.In this case,pleasecall our A/S team immediately to getsupport.

Occurrence frequency:It is very rare to operate by the emergencyswitch.

5.RS-485

Communication specification

Communication Protocol (ModBus-RTU Protocol Function code)

-response

SingleWrite

- Query (example- Pressure 5.5bar)

-response

Setting for communication

Installer setting [3](Refer Page68\~Page 71)
-RS-485
-Slave ID
-BAUDRATE

-DELAYTIME -DRIVEMODE

Diagnosis

Diagnosis

4.3Basic function commissioning

4.3.1Load running

Manual operation with load:setthe upper and lower limit values of the electric contact pressure gauge according to the head of the water pump.When theactual pressure is lower than the set lower limit,turn the three-position switch of the water pump to the "MANU"position.When the motor starts normally,the pressure Whether the motor can stop when it is higher than the set upper limit.

Automatic runningwith load: turn the three-position switch of each pump to the "AUTO" position,and then turn the general command switch to the "START"position to check whether the equipment can automatically start/stop the pump.When the actual pressure is lower than the set pressure,The system automatically turns on the 1# pump.When the 1# pump reaches full load and til cannot meet the requirements,the system automatically starts the 2 \# pump and so on until it meets therequirements；when the water source pressure is higher than the set pressure,the equipment should be able to automatically reduce the pump.

On-load commissioning is the comprehensive performance of aset of equipment.It is necessary to testallpossible conditions of the equipment.For example,check whether the displayof thecontroller panel isabnormal,and compare whether the N747D panel displays the operating rate signal from theinverterand the actual operating frequency of the inverter.，and whether the fancan operate normallyaboveafixed frequencyaccording to the setting,the rotation direction ofthe fan,whether the motorworks normally,whether there isany heat phenomenon,and other electrical aspects,including pipeline valvesand other mechanical aspects,according to the function tableof theequipment,item by item to commission.

4.3.2Nonegative pressurefunctiontest

After the equipment is in normal operation,gradually close the gate valve of the water inlet. When the water intake is less than the water consumption,observe the indication of the negative pressure gaugeat the water inlet of the equipment. It should not indicate negative pressure.

4.3.2No negative pressure function test

After the equipment is in normal operation,gradually close the gate valve of the water inlet. When the water intake is less than the water consumption,observe the indication of the negative pressure gauge at the water inlet of the equipment.It should not indicate negative pressure.

4.3.3 Small flow shutdown and pressure maintaining function

Under the normal working state of the equipment,gradually close the valve of the water outlet

of the quipment and reduce the flow of the water outlet of the equipment toa certain smallflow,the equipment should be able to automatically switch to the working state of smallflow shutdown and pressure keeping.

4.3.4Pressurecontrol error

The equipment should have the function of automatic constant pressure water supply.When constant pressure water supply,the pressure control error should not exceed O.OlMpa.

4.3.5OvercurrentProtection Inspection

When the equipment is working normally,the water pump isartificially overloaded.At this time, the controler should have analarm prompt and analarm sound,the faulty pump willautomatically stop,and the system will automatically switch to the standby water pump.

4.3.6 Overpressure protection function experiment

When the equipment is running automatically,make the water outlet pressure higher than the high pressure alarm point pressure,the equipment should beable to automatically stop and issue a high pressure alarm,and the equipmentcanautomatically resume operation after the high pressure is removed.

4.3.7Equipmentsealingtest

Close the water outlet valve of the equipment,increase the pressure to1.1times the rated pressure,keep the pressure for 30 minutes,check the sealing condition between the water inletand outlet ofthe equipment,and ensure thatthere is no water leakageatthe systempipeline interface and valve, and the pressure display of the outlet pipe is thesameas that of N747D.The pressure display is consistent.

4.3.8Inverteralarmresetfunction

The inverter reset buton isa function to restart the inverter when the inverterfails.At most two inverterscan beused.The inverter reset buton is used to resetthe faultyone of the two inverters.4. 3.9 When the equipment is in normal operation,close the water inlet valve.When the water source is empty,the equipment should beable toautomatically shut down for protectionand alarm,and should beable to automatically start when the water pressure of the water source is restored.Check the functionsaccording to the function tableofthe controlcabinet.There is no problem with repeated experiments.After the whole machine is loaded for1 hour,after everything iscorrect,the lines will be rearranged,cleaned,and randomdatawillbe processed.

4.3.9 Startwithwaterand stopwithoutwater

When the equipment is in normal operation,close the water inlet valve.When the water source isempty,the equipment should be able toautomatically shut down for protectionand alarm,and should beable to automatically start when the water pressure of the water source is restored. Check thefunctionsaccording tothe function tableof thecontrolcabinet.There isnoproblemwith repeated experiments.After thewhole machine is loaded for1 hour,after everything is correct,the lines will be rearranged,cleaned,and documentswill be processed.

4.3.10 Regulating tank vacuum suppressor double float

There are two floating balls inside the vacuum suppressor of the new steady flow tank.When thefirst-stagefloating ballis damaged,it isprotected by thesecond-stage floating ball.At thesame time,the device sendsan alarm through the buzzer (ALARM)at the botom of the panel to notify the userin time to replace the first stage float or notifyour after-sales personnel for maintenance.

Special equipment

Special equipment refers to other types of equipment other than those listed above Commissioningaccording to its specially formulated equipment operating instructions or equipment function table.

5. Precautions for on-site installation and commissioning

5.1For the non-negative pressure constant pressure water supply system,a filter should be installedat the water inletof thesteadyflowtankduring on-siteinstallationand debugging.The water outlet of the steady flow tank should be disconnected from the pipeline of the subsequent equipment, and theinsideof the steadyflowtank shouldbeflushed with water.,toseeif there isanydebris inside, to prevent the debris from directly installing the motor pipeline equipmentfrom entering the equipment pipeline.Afterflushing,it isconfirmed that there isnodebrisorthe debris isremoved,and then install the back-stage pipeline motor equipment.

5.2During on-site installation and debugging,the rubber ring tipon the pressure gauge should be cutoffso as to communicate with theatmosphereand ensure that the pressure inside and outside the gauge is balanced and the pointer returns to zero.

5.3 No negative pressure system buzzer fault alarm distinction: BUZZER refers to the internal fault alarmof thesystem,and the N747D panel willdisplay the systemalarm content;ALARM means that when the first-level float of the steady flow tank is damaged,the system passes through the second-level protectiondevice of the second-level protection device.The floating ball isused for