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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BOOSTER PUMP SYSTEM N747D
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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BOOSTER PUMP SYSTEM N747D
Chapter #1
The composition and features of controller
1. Features of controller
2. Functions of controller
3. Composition of controller
1. Features of controller

BOOSTER PUMP SYSTEM 5
BOOSTER PUMP SYSTEM N747D
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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BOOSTER PUMP SYSTEM N747D
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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BOOSTER PUMP SYSTEM N747D
< 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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BOOSTER PUMP SYSTEM N747D
: + , - 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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BOOSTER PUMP SYSTEM N747D
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]