dooch N747D User manual

BOOSTER PUMP SYSTEM 1
BOOSTER PUMP SYSTEM N747D
User’s Manual For Booster Pump
N747D Controller
DOOCH CO., LTD

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BOOSTER PUMP SYSTEM N747D
Contents
Chapter #1 The composition and features of controller
1. Features of controller …………………… 5
2. Major Functions of controller ………… 6
3. Composition of controller ……………… 7
Chapter #2 Key operation of user
1. Key operation of user setting …….. 10
2. Display of user setting ……….. 10
3. Change of user setting(1) ……….. 11
4. Change of user setting(2) ……………… 15
5. Change of user setting(3) …………….. 19
Chapter #3 Key operation of installer
1. Key operation of installer setting ……… 26
2. Display of user setting ….…….. 26
3. Change of installer setting(1) ………….. 27
4. Change of installer setting(2) ………….. 32
5. Change of installer setting(3) ……….. 36
Chapter #4 Key Operation of pump operation history
1. Confirmation of pump operation history ….. 42
2. Confirmation of alarm history ……..…….. 43

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Chapter #5 Key operation of test operation
1. Test operation key .…………………….. 46
Chapter #6 Other Keys
1. Inverter reset Key …….…………………….. 49
2. Key of Initial display ….…………………….. 49
3. Alarm display and Reaction…………………. 49
Chapter #7 Appendix
1. Control Board Arrangement and Description…. 52
2. Check items ………..……………………… 55
3. Pump Test operation …………….….……. 57
4. Emergency Operation......……………………… 58
5. RS-485 Communication .………………… 60

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Chapter #1
The composition and features of controller
1. Features of controller
2. Functions of controller
3. Composition of controller
1. Features of controller

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This advanced computer control device has been achieved its controlling of
pump’s RPM by inverter through the newest electronic technology, and
equipped with presumptive terminal pressure control technology and various
intelligent functions which can determine and control the pressure of water
supply according to the amount of supplied water and usage.
Up to 6 pumps can be controlled with functions generally such as; stopping
low flow using pressure tank, control, scheduled operation, warning
abnormal state, full automated sequential operation, interval shift operation,
skipping failed pump automatically, displaying operation data and data
storing
Remote controlling and monitoring functions by remote modem
communication, and easy operating for anyone by displaying of all screen
view in Korean./ English / Chinese.
2. Major functions of controller

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Major function
Description
Inverter-fix type Select inverter-fix type from menu.
LCD Monitor Displaying variety information through large LCD screen.
LCD Display in Korean
Easy operation and control for anyone by Korean menu.
Select display language
Select Korean(default) / English/ Chinese/ Spanish from
menu.
Control latest PID
Latest PID Control by micro processor.
sequential operation Operating and stopping motor sequentially.
Preventing idling In case of no water in suction piping, operating stop and
alarming
Skipping failed pump If any pump is failed, the next pump is operated skipping the
failed one.
Preventing excessive
current to motor Automatic-trip in case operating current of motor is abnormal.
Prevention of abnormal
high voltage Preventing abnormal high voltage by pressure switch against to any problems in pressure sensor.
Scheduled operation. Available to vary operating conditions by time/day/month.
Self-access operation Optimized operation through self-assessment
Alarming high pressure
When specified pressure/time is exceeded, pump stops and
alarm is given.
Alarming low pressure
When every pumps are operated under specified pressure
even during the continuous operating, then alarm is given
( preventing low pressure).
Correction of sensor
value Correcting when sensor value does not match with analog gauge.
Record operation data
and save Record various operation data and save.
Display alarmed
description and save Displays various alarmed descriptions and save.
Emergent operation Emergent operation by pressure switch in case controller
and pressure transmitter are in failure.
Shift operation After certain period of operation, main pump function is
shifted so that pumps can be operated equally.
Spare sensor Spare pressure sensor is connected, so that when one
pressure sensor is failed, other sensor is employed
automatically to replace the function.
Contact terminals by
pump Outputs operation and error by pump to external contact terminal.
Input external analog
data Input of multi-functional external analog data
CAN communication Supporting CAN and RS485 communication
485 communication
Inverter options
Operating with two inverters simultaneously
3. Composition of controller

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< Controller External >
Controller is consisted of LCD play and operation Keys.
- LCD Display : It displays system information.
- Operation Key : It is for data setting and checkup data.
: It is for booster system user.
: It is for booster system installer.
: It is for checking operation data.
: It is for checking motor rotation direction.
: In case of inverter fault, it is for reset inverter.
: It is for recovery to the main display.
: Setting value.

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: + , - Setting value.
: It is for saving setting value and checking operation history/
alarm history
: It is for deleting operation history/alarm history
: It is for moving cursor to the menu.

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Chapter #2
Key operation of user
1. Key operation of user setting
2. Display of user setting
3. Change of user setting(1)
4. Change of user setting(2)
5. Change of user setting(3)

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1. Key operation of user setting
2. Display of user setting
User setup display [1] User setup display [2]
.
User setup display [3]
- The display of User setup [3] is related with User setup [2]

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< Display of Monthly operation>
< Display of weekly operation>< Display of timely operation >
3. The change of user setup[1]
1. Press installer setup on main display
2. Input password and save (initial password is “0000”)

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3. In user setup [1], move to desire display with cursor.
4.Move to desire display with cursor
※Cursor can be moved to left / right.
5. Setting value can be changed by figure Keys.

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6. After setting, press “save” .
The adjustable items in the user setting [1] are as below.
- Setting pressure: Target water pressure to operate.
Change of predetermined pressure.
(Example: In case current set value is 03.00 kgf/cm² )
1. Using Key, select .
2. Initially the first ‘0’ of the ’03.00’ blinks.
3. Using Key, select position to be changed in ‘03.00 kgf/cm² ‘.
4. After change using Key, make sure to press Key.
※Set value is not changed until input key is pressed.
※When predetermined pressure is changed, the high pressure value becomes
setting pressure +2kgf/cm² automatically.
………………………………………………………………………………………………………-
-The change of auxiliary stop pressure
(Example: In case current set value is 00.2 kgf/cm²)
1. Using Key, select
2. Initially the first ‘0’ of the ’00.20’ blinks.
3. Using Key,select position to be changed in ‘00.20 kgf/cm².
4. After change using Key, make sure to press Key
- Auxiliary stop pressure : it means the pressure to stop the auxiliary pump.
When current pressure decreases hoigher than “setting pressure + auxiliary operation
pressure”, then auxiliary pump will stop. If setting pressure is 03.00 kgf/cm² and auxiliary
pressure is 00.50kgf/cm², 005 second, and current pressure is higher than 3.5kgf/cm²,
then auxiliary pump will stop after 5 seconds.
Change of auxiliary stop pressure.
(Example: In case current set value is 00.30 kgf/cm² )
1. Using Key select .
2. Initially the first ‘0’ of the ’03.00’ blinks.
3. Using Key, select the position to be changed in ’00.30 kgf/cm²’.
4. Using Key, change to required value, then make sure to press Key.
※Set value is not changed until input key is pressed.

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- Step operational pressure(Emergent operational pressure) :
When “step operation 1” has been set by user or inverter error occurs, pump runs if
“setting pressure-current pressure” is lower than specified emergent operating pressure.
Change of step operational pressure.
(Example: In case current set value is 00.50 kgf/cm² )
1. Using Key, select .
2. Initially the first ‘0’ of the ’00.50’ blinks.
3. Using Key, select the position to be changed in ’00.50 kgf/cm²’.
4. Using Key, change to required value, then make sure to press Key.
※Setting value will not be changed until input key is not pressed.
step stop pressure (emergent stop pressure) :
When “step operation 1” has been set by user or inverter error occurs, pump runs if
“setting pressure-current pressure” is lower than specified emergent operating pressure.
Change of stepl stop pressure.
(Example: In case current set value is 00.50 kgf/cm² )
1. Using Key, select .
2. Initially the first ‘0’ of the ’00.50’ blinks.
3. Using Key, select the position to be changed in ’00.50 kgf/cm²’.
4. Using Key, change to required value, then make sure to press Key.
※Set value is not changed until input key is pressed.
- Shift time of main pump :
When the specified time as the shift time of main pump is over, the main pump is
changed. However, while the pump is in operating, its operating mode is maintained until
2:00am then shifted forcibly. Setting is available up to ‘99’, and when setting is in ‘00’, the
main pump is shifted whenever inverter stops.
Change of main pump shift time
(Example: In case current set value is 24 hours.)
1. Using Key, select .
2. Initially the first ‘2’ of the ’24’ blinks.
3. Using Key, select the position to be changed in ’24’.
4. Using Key, change to required value, then make sure to press Key.
※Set value is not changed until input key is pressed.
※In case of forced shift, all pump stops for a while.

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4. The change of user setup[2]
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].

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4. In user setup [2], move to desire display with cursor.
5. Setting value can be changed by figure Keys.

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6. After setting, press “save”.
Changeable items in user setting [2] are as below.
- Time setting : 2008/11/13 12:20 Thursday
It displays in the order of year/month/day time :minute days, and if it does not
matched with present time then adjust it.
Adjust of time settings
( Example: In case of change “2008/11/13 12:00 Thursday” to “2008/11/13 24:00
Thursday”)
1. Using Key, select .
2. The first ‘2’ of the ‘2008/11/13 12:00 Thursday’ blinks.
3. Using Key, enter in the order of 2,0,0,8,1,1,1,3,1,2,0 and 0 (Thurs).
When no change is required or in case of wrong input, it’s available to move to
required position using Key.
The last number means day of the week as below;
1 : Mon 2 : Tue 3 : Wed 4 : Thurs 5 : Fri 6 : Sat 7 : Sun
4. After changing to required value, make sure to press Key.
※Set value is not changed until input key is pressed.
- Setting high pressure alarm : ＯＯ.ＯＯkgf/cm² ＯＯＯsecond
When water pressure sustains at above than specified pressure (ＯＯ.ＯＯ) for more
than ＯＯＯ seconds, alarm is to be given.
Change settings of high pressure alarm
(Example: in case of to change 05.00 kgf/cm² 005 seconds to 04.00 kgf/cm²
003seconds)
1. Using Key, select .
2. Initially the first ‘0’ of the ’05.00 kgf/cm² 005 second’ blinks.
3. Using Key, enter in the order of 0, 4, 0, 0, 0, 0 and 3.
In case no change is required or wrong input, moving to desired position is available
by using Key.
4. After changing to required value, make sure to press Key.

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※Set value is not changed until input key is pressed.
※When setting pressure of user setting [1] is changed, setting pressure of the high
pressure alarm settings is automatically set as +2kgf/cm².
- Setting of low pressure alarm : ＯＯ.ＯＯkgf/cm² ＯＯＯseconds .
When water pressure sustains at lower than specified pressure (ＯＯ.ＯＯ) for more
than ＯＯＯ seconds, alarm is to be given.
Change of lower pressure alarm setting
(Example: in case of to change 00.00 kgf/cm² 005seconds to 00.20 kgf/cm² 005seconds)
1. Using Key, select .
2. Initially the first ‘0’ of the ’ 00.00 kgf/cm² 005 seconds’ blinks.
3. Using Key, enter in the order of 0, 0, 2, 0, 0, 0 and 5 .
In case no change is required or wrong input, moving to desired position is available by
using Key.
4. After changing to required value, make sure to press Key.
※Set value is not changed until input key is pressed.
- Setting of scheduled operation :Available to select among No use / Monthly
operation / Weekly operation / Operation by time frame. Initial setting is ‘No use’, and
operation method can be selected with 0~3 number keys. Each number stands for;
0 : No use 1 : Monthly operation 2 : Weekly operation 3: operation by time frame
Change setting of scheduled operation.
(Example: To change “scheduled operation : no use” to “ scheduled operation : operation
by time frame”)
1. Using Key, select .
2. “No use” blinks.
3. Enter “3” among Keys.
(0 : No use 1 : Monthly operation 2 : Weekly operation 3: operation by time
frame )
4. After changing to required value, make sure to press Key.
※Set value is not changed until input key is pressed.
5. To use scheduled operation, the settings shall be changed in “ user operation [3].
Refer to the changes in “user operation [3]” for detail information.
- Change of user password : N747D is designed to set password in order to prevent
others from tampering settings without authorization. Initial password is set as 0000.
Change of user password
(Example: To change “use password : 0000” to “ ser password : 1234”)
1. Using Key, select .
2. User password : Initially the first ‘0’ of the ’0000’ blinks.
3. Using Key, enter 1, 2, 3, 4.
4. After changing to required value, make sure to press Key.
※Set value is not changed until input key is pressed.

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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].

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4. In user setup [2], move to schedule setup with cursor.
5. Choose desire figure from “0” to “3”.
0 : Not used 1 : Monthly operation 2 : Weekly operation 3 : Timely operation
6. After changing to operation setup, make sure to press Key.
Set value is not changed until input key is pressed.