dooch NSQ, HNSQ Series Series Manual

PREMIUM

BOOSTER PUMP SYSTEM

NSQP

HNSQP

CONTENTS

Basics

Safety Instruction

Features of Product

Components of Product

Method of Operation

Installation

Inspection and Maintenance

Cause of Fault and Reaction

Drive

- Control mode

- Method of pressure setting

- Parameter Mode

- Pr (Pump) - dr(Drive)

- Fault History Table

- Measures be taken in case of

fault or alarm

Communication(Option)

- RS-485

- Internet Modem

3

Basics

H NSQ 3 DRL 10-6 - 80A

In-Line type manifold

Manifold Size

Pump Model

Each of Pump

Inverter Type

Model

Feature

cification

Spe

H

NSQ-Drive

Exclusive Inverter for Pump

Power Range : 0.75~22kW
Input Power : 1Φ×200~230V (0.75~2.2kW)

Output Power : 3Φ×380V
Frequency : 50/60Hz

3Φ×380~440V (0.75~22kW)

Without H

In-Line Type Manifold Standard Type Manifold

Safety Instructions

Preface

Thank you for choosing DOOCH’s high performance NSQ-Drive series.
Describing specification, installation, operation, function, and maintenance of the NSQ-Drive
series provided for the users who are familiar with and having basic experience in using a
variable frequency drive.
Be sure to understand function, performance, installation, and operation of the product by
reading through this User's Manual completely prior to your use of NSQ-Drive series that
you have purchased. In addition, you are required to have this User's Manual properly
delivered to the end-user and maintenance manager.

Safety Precautions

To prevent injury and property damage, follow these instructions. Incorrect operation
due to ignoring instructions will cause harm or damage.
The seriousness of which is indicated by the following symbols.

Warning :

Warning

This symbol indicates the possibility of death or serious injury.

Caution :

Caution

This symbol indicates the possibility of injury or damage to property.

Remark

Even if the instructions are indicated as ‘Caution’, it can cause a serious result according to the kind
of operation and the environment.

The meaning of each symbol in this manual and on your equipment is as follows.

Safety Instructions

Do not remove the cover while power is applied or the unit is in operation.

Otherwise, electric shock could occur.

Do not run the inverter with the front cover removed.

Otherwise, you may get an electric shock due to high voltage terminals or
charged capacitor exposure.

Do not remove the cover except for periodic inspections or wiring, even if
the input power is not applied.

Otherwise, you may access the charged circuits and get an electric shock.

Wiring and periodic inspections should be performed at least 10 minutes
after disconnecting and after checking the DC link voltage is discharged

Caution

Warning

with a meter (below DC 30V).

Otherwise, you may get an electric shock.

Operate the switches with dry hands.

Otherwise, you may get an electric shock.

Do not use the cable when its insulating tube is damaged.

Otherwise, you may get an electric shock.

Do not subject the cables to scratches, excessive stress, heavy loads or
pinching.

Otherwise, you may get an electric shock.

Install the VFD on a non-flammable surface. Do not place flammable
material nearby.

Otherwise, fire could occur.

Disconnect immediately the input power if the inverter gets damaged.

Otherwise, it could result in a secondary accident and fire.

After the input power is applied or removed, the VFDwill remain hot for
a couple of minutes.

Otherwise, you may get bodily injuries such as skin-burn or damage.

Do not apply power to a damaged inverter or to the VFD with parts missing
even if the installation

Otherwise, electric shock could occur.

Do not allow lint, paper, wood chips, dust, metallic chips or other foreign
matter into the drive.

Otherwise, fire or accident could occur.

Safety Instructions

Cautions for Use

A. Transportation and Installation

Be sure to carry VFD in a proper way suitable for its weight, or it may result in damage to the VFD.
Be sure to use heat-treated wooden crate when you adopt wooden packaging for the product.
Do not pile up VFD's above allowable limit.
Be sure to install the VFD as directed in this instruction manual.
Do not turn off the power supply to the damaged VFD.
Do not open the front cover while carrying the VFD.
Do not place the heavy material on the VFD.
The direction of installation should be observed properly as criterions specified in this manual show.
Make sure that you should not put screw, metal material, water, oil and the inflammable something else.
Keep in mind that the VFD is very vulnerable to drop from the mid air and strong shock.
Don't let the inverter exposed to rain, snow, fog, dust, etc.
Do not cover, nor block, the ventilating system having cooling fan. It may cause the VFD overheated.
Be sure to check the power is off when installing the VFD.
To prevent the risk of fire or electric shock, keep the connected wire in a sound condition.
Use the wire that meets the standard in a recommended length.

Installation Location

Temperature/Humidity

Storage Temperature

Elevation/Vibration

Ambient Atmospheric Pressure

Free of corrosive gas, inflammable gas, oil sludge and dust, etc

-10 ~ 40℃ / Below 90% RH (Dewdrop should not be formed)

-20~65℃

Altitude 1,000m or lower / below 5.9m/sec²(=0.6g)

70~106 kpa

B. Wiring

A professional installer should have done the wiring and checking.
Do wiring after installing the VFD body.
Do not connect phase-leading capacitors, surge filter, radio noise filter to the output of the VFD.
Output terminals (terminals named U, V, W respectively) should be connected in a proper phase
sequence.
Make sure that there is not any short circuit terminal, wrong wiring. It may cause spurious operation
or failure.
Refrain from using a cable other than the cable shielded when you connect control circuit wiring.
Adopt the shielded wire only when wiring the control circuit. It may cause the failure of the VFD in its
operation.
Use the twisted pair shield wire for the ground terminal of the VFD

Features of Product

Apply advanced technology of new booster system

Minimize pressure fluctuation by durable multi inverter
Optomized design with controller module
RS-485 comm., Ethernet and Internet remote control (OPTION)

Functions

PID controller

Sequential Operation

Dry-running protection

Fault pump Skip

Motor Overcurrent Protection

Owner -Operation

High Pressure Alarm
Low Pressure Alarm

Revised sensor value

Run History
Trip History

Relief operation

Intergrated current operation

Contact each of pump

Input external analogue

Fixed Hz Operate

485comm.(option)

Internet modem(option)

PID Control by Micro Processor

Explanation

Sequential pump run and stop
Running stop and fault when low water level

If one of the pump is out of order, another pump operate.

If the motor is over current, the trip is occured automatically.

Pump operate throughout owner-operation

High Pressure Alarm level

Low Pressure Alarm level

Correct the sensor value if the sensor value differ from analogye value

Save all of run history of pump

Save all of the trip and error history of pump

all pumps have evenly run time.

After calculating the intergrated curent from each controller, disribute the current to all pump.

The pump operate individually
Input muti-functional external analogue

When the pressure sensor is out of order, pump can operate fixed Hz

RS485communication

IM2000 Internet modem

Product Component

System Component

1

4

NSQP Booster Pump

2

7
3

9
6

8
5

No.

1

2

3

4

5

6

7

8

9

10

Discription

Panel

Inverter

Controller

Pump

Bed

Manifold-Suction

Manifold-Discharge

Pressure Transmitter

Suction Isolating Valve

Check Valve

Pressure Tank

Quantity

1

2~6

2~6

2~6

1

1

1

1

1/PUMP

1/PUMP

1

Comments

-

-

-

-

-

Standard Manifold

Standard Manifold

4 ~ 20mA

-

-

Depend on pump size

Product Component

System Component

1

4

HNSQP Booster Pump

2

7
3

8
5

9
6

No.

1

2

3

4

5

6

7

8

9

10

Description

Panel

Inverter

Controller

Pump

Bed

Manifold-Suction

Manifold-Discharge

Pressure Transmitter

Suction Isolating Valve

Check Valve

Air Vent

Pressure Tank11 1

Quantity

2~6

2~6

2~6

1/Pump

1/Pump

Comments

1

1

1

1

1

1

Depend on pump size

-

-

-

-

-

In-Line Manifold

In-Line Manifold

4 ~ 20mA

-

-

-

Operation Method

Step Operating Mode

All pumps operate consistantly by a method of step operating (protects the pumps from over
load)

3Pump system

Stop Mode

Pressure

Starting Pressure

1pump operate

Inverter operate

Stop pressure of master pump

q0

q0~q1 : 1pump operate with inverter
q1~q2 : 1pump operate with inverter, 1slave pump operate
q2~q3 : 1pump operate with inverter, 2 slave pump operate

q1

1pump operate

1 pump with inverter

q2 q3

2 pump operate
1pump with inverter

Operate condition

If the pressure of the discharge is lower than set pressure, the second pump will stat to operate.
If the flow of the discharge continues to increase, all of the pumps will operate sequently.

If the flow decreases, the pump operating last will stop.

If there is no water consumption,

the set pressure of th e mater pump.

the pump that was operating last will stop after rising up to

Increase water
consumption

Decrease water
consumption

Quantity

Operation Method

Alternative Operation(basic)

After scheduled operating or when all of the pumps stop, the master pump will

alternatively change

- Alternative method means all of the pumps will run sequently.

- If all of the pumps stop and then reopertate, the master pump changes from pump one to

pump 2

-After passing the time of the Pr-54 (lead pump alternation time : Factory setting 12hour),

second pump will operate by force

Fixed Lead Pump Operation

In case the location is in demand of high water consumption or a location where the pump needs to maintain

contstant pressure.

-If Pr-54 (lead pump alternation time) is set at "0", the first pump will operate as lead pump

- The lead pump does not altenate, oand will operate sequently.

Method by Intergrated Current Rate

To operate by distributing the current evenly after calculating the intergrated

current from each controllers.

- If Pr-53 (Alternation Type)is set at "1", the pump with the lowest amount of

current consumed will operate.

ALL PID Method

Main controller controls all of the drives via PID

If Pr-61(PID control type setup) is set at "1", this function will be applied.

Installation

Check the product specification

Take the VFD out of the box, check the rating shown on a side of the product body to

determine wheather the VFD specification is what you had ordered. Check also whether
the product has been damaged during delivery. (refer to product components )

Installation Place

Booster system is usually installed indoors, but if the system is installed outdoors, there should be covers to

protect the electronic components from water, freezing and natural disaster

Booster pump systems have to be installed within a pressurization condition.

To prevent the suction pipe from any dust, please install extra strainer
To prevent dry-running, make sure the water level is always higher than the pump. Make sure
the pump has been installed to keep the minimum suction pressure.

To prevent flood damage from installation, pump breakage, leakage by external condition,
please install within a facility that is equipped with drainage.

Pipe Line

The pump installation shall not allow the system pipeline tensile force to be transferred to
the suction and discharge pipe.
Suction pipe line should be installed less curved and short.

To be convenient maintenance, encourage to install By-pass(discharge), valve and flexible
joint to suction and discharge pipe.

Please install the prevention device for Water Hammer to discharge sector. If suction pipe is
over 10m and covered 2 times, the chage of dicharge pressure can occure and low water
level switch can operate, so suction pipe line should be larger than booster system manifold.

Wiring

Wiring should be performed by an wiring expert. To prevent from electronic leakage by

inductance and electronic shock
Main wiring for booster pump has already been wired in the factory. If you need additional wiring,
please wire as per the electronic drawings

Note before operating

- Is the circuit breaker capacity enough ?

- is the wiring correct ?

, circuit breaker and grounding should be installed.

.

Operation

FND

FND has five digits of 7-segment, four LED lamps to display various settings and
states and consists of four buttons to operate drive or enter setting.

LAMP

FND

BUTTONS

Drive

Instructions on setting the pressure

Warnings

Operation

Drive

Functional Description of each Part

LED Lamps

LED lamps consist of Run, Stop, Alarm1 and Alarm2 and functions of them are as follows:

- Functions of each Button

Run

Stop

Alarm1

Alarm2 Turned on for drive error

-Run and Stop LEDs indicate status of the drive.

-In case of drive error, Alarm2 lamp will be turned on. In case of alarm

for pump system, Alarm1 lamp will be turned on.

FND Part

FND consists of five digits of 7-segment and displays status value of drive and pump and

parameter settings. FND displays are divided into St group (Status Group), Pr group (Pump

Control Group) and dr group (Drive Group).
Button Part

Button part consists of four buttons and it is used for parameter setting or

movement.

Turned on for waiting and flickered on operation

Turned on during stop

Turned on for High Pressure/Low Pressure/Sensor Error/Low Level Alarms

It is used for setting up pressure settings, various parameters or Alarm Reset

It operates or stops the drive.
On operation state, RUN lamp will be turned on.

It is used to change parameter items or parameter settings. Key increases
the value, whilele

o press key for saving the final value. If pres

be sure to pressbe sure t
for 3 seconds, parameter group is moved.

key decreases the value After changing the settings,

Parameter Settings

ex> Changing from 3,0 Bar~ 3.5 Bar

Drive

Press the and check the current Pressure setting

When pressing the button for one second the d

3.0 will appear and the 3.0 will keep on blinking.

Press the to change the set pressure value.
[Ex. (3.5) : Press the 5 times]

Press the to confirm the set pressure.

- End - display will appear which will apply the desired setting

Press the button to check your changed settings.

Changing the settings

Pressing the will display the current P-S-H-o-U-A in sequence.

Current
Pressure

Power
Frequency

DC
LINK

Current pressure
display

Current Hz display Current Operation

Current DC Link

display

Set
Pressure

Operation
Ratio

Output
Current

User's Set pressure
display

Ratio in % display

Current output current
display

Pr Mode (Pump Control Mode)

Pr-03

Capcity Setup of Sensor 1

Pr-04

Correction Value of Sensor 1

Pr-11

Freezing Prevention

Pr-12

Starting Pressure Variation

Stopping Time after reaching Setup Pressure

Pr-13

Pr-40

485 Comm. Mode

Pr-41

485 Comm. ID

Pr-42

485 Comm. Speed

Pr-43

485 Comm. Delay time

CAN Comm. ID

Pr-51

Alteration type

Pr-53

Lead pump alteration type

Pr-54

Pr-55

Standby Pump wating time

PID control Type Setup

Pr-61

Pr-64

Output Ratio of ALL PID

High Pressure Alarm Level

Pr-70

Low Pressure Alarm Level

Pr-71

High Pressure Alarm Time

Pr-72

Pr-73

Low Pressure Alarm Tim

Low Level Trip Time of Pressure Sensor

Pr-74

Low Level Trip Pressure Level

Pr-75

Initialization Code

Pr-90

S/W Version

Pr-92

Drive

Change

0.0

0.3

30

12

0.5

20

20

0.3

PARA.

of

Interlock

0

0

0

5

5

0

-

operation

X

X

○

○

○

X

○

○

○

X

○

○

○

○

○

○

○

○

○

○

○

X

X

PHRASE

X

○

○

○

○

X

X

X

X

X

○

○

X

X

○

○

○

○

○

○

○

X

X

DescriptionDisplay

Setting Range

1.0~25.0[bar]

-1.0~1.0[bar]

0~1

0~2.0[bar]

0~200[sec]

0~1 0

0~250 1

1~5 4

1~9999[ms] 5

0~6

0~2

4[hour]

0~2

1~100[sec]

0~1 0

70~100[%] 100

0~Sen1 Cap[bar]

0~10.0[bar]

0~100[sec]

0~200[sec]

0~250[sec]

0~1.0[bar]

0~1

-

Factory
Setting

16.0

20.0

1Φ

3Φ

PHRASE

Pr Mode (Pump Control Mode)

Drive

Pr-03 : Sensor 1 Capacity Setup

Enter the maximum value that the pressure sensor can measure.
By entering capacity of pressure sensor attached to the drive being used, it is possible
to display the currently measured pressure.
Example) In case the using sensor has 10bar, enter 10.0.

If the using sensor has 16bar, enter 16.0.

And enter the rated value of the pressure sensor for normal pump operation.

Pr-04 : Sensor 1 Correction Setup

It corrects pressure variation between analog or digital pressure meter and the one
displayed on drive FIND.

Pr-11 : Freezing Prevention Function

It sets up freezing prevention mode of pump.

It is to prevents pump from being broken due to low temperature (below zero) in winter using ambient temperature
sensor information within the drive. The function is operated with a frequency not generating pressure between
0~10 seconds and maintained as stopped status between 11~59 seconds based on 1 minute.
This function is to prevent the pump from freeze and burst by generating frictional heat upon rotation within
pump casing.

Functional DescriptionSetup Data

0 (Factory Setting) OFF

1 ON

Pr-12 : Start Variation

It sets up start variation pressure value. That is, the operation starts when the current
pressure has larger variance than the specified value comparing to setting.
In case of alarm occurrence, operation does not start.

Pr-13 : Stopping Time after Reaching Setup Pressure

When the pump pressure reaches to setting and maintained for longer than setup time, it starts to reduce
speed. If there is pressure difference as much as starting variation, the pump starts to operate again during
decrease of speed and if not, it stops.

Functional DescriptionSetup Data

0 Deactivation of Pressure Sensing

1 ~ 200 [sec] Setting the time for pressure sensing(Factory setting 30(Sec)

Pr Mode (Pump Control Mode)

Pr-40 : 485 Communication Mode

To set up 485.

Functional DescriptionSetup Data

0 (factory setting) Not use 485 comm.

1 Use 485 comm.

Pr-41 : 485 Communication ID set up

It sets up 485 comm. ID set up

Functional DescriptionSetup Data

1 ~ 250 (Factory Setting 1)

Pr-42 : 485 Communication speed

485 comm. speed set up

1 1200 bps

2 2400 bps

3 4800 bps

4 (Factory Setting) 9600 bps

5 19200 bps

f the number of data request protocol is different, data is not
transmitted.

Functional DescriptionSetup Data

Drive

Pr-43 : 485 Communication delay time

485 comm. delay time set up

1 ~ 9999 [msec]

When receive data request protocol, data transmit after set up delay
time (Factory set up : 5[msec])

Functional DescriptionSetup Data

Pr Mode (Pump Control Mode)

Pr-51 : Communication ID Setup

It is CAN Communication ID on Multi-Drive control mode.
Be sure to not duplicate ID for setup.

Drive

Setup Data

0 (Factory Setting)

1 ~ 6

Multi-Drive

control

Comm. ID No.

Functional Description

Single Mode

dr-02

Pr-52

Pr-53

Pr-54

Pr-55

Pr-61

Target Frequency Input Method

CAN Communication Speed

Lead Pump Alternation method

Lead Pump Alternation Time

Stand-by Pump Waiting Time

PID Type on Multi-Drive control

Related Functions

Pr-53 : Alternation method

It determines the order of Q-Driver’s run, stop, alternation on Multi-Drive operation mode.

Functional DescriptionSetup Data

0 (Factory Setting) In order if ID

1 In order of low watt-hour

Setting is available for Ver 1.3x
When Pr-50 CAN comm. mode is 0, alternation is set 0.

Pr-54 : Lead Pump Alternation Time

Alternative operation refers to an operation that when it reaches time specified by the user,
the drive with a lot of power consumed is to be stopped and the one with less power
consumption is to be started alternatively at the same time in order to prevent a specific
drive(pump) being operated constantly. If times is set, drives are forcedly shifted.

Functional DescriptionSetup Data

0 Release of alternation

1 ~ 24 (hour) Alternation time setup. (Factory Setting 12[hour])

Pr Mode (Pump Control Mode)

Drive

Pr-55 : Stand-by Pump Waiting Time on Multi-Drive Control Mode

This is to give some delay to stand-by pump. If the stand-by pump starts operation before the main
drive outputs maximum frequency then the pressure may increase suddenly.

Pr-61 : PID Type Setup on Multi-Drive Control Mode

Centralized control is a method that all of drivers participating into operation are allocated with
target value for the output frequency by one PID controller of Master.

Functional DescriptionSetup Data

0 (Factory Setting) 0 (Factory Setting) Master Control

1

Centralized

Control

Pr-64

Related Function

Output Ratio on Starting

Increase of All PID

Pr-64 : Output Ratio on Starting Increase of All PID(Preparing)

It is an output ratio to start the next drive by applying it centralized control method for multiple pump
operation. That is, if the output ratio of drive in operation is higher than a specified value, the next
drive to be linked starts to be operated.

Input RangeFactory Setting

100 [%] 70 ~ 100 [%]

Pr-70 : High Pressure Alarm Level

It sets standard pressure value to issue the high pressure alarm.

When setting the setup pressure, it is automatically set to setup pressure + 2bar.

Pr-71 : Low Pressure Alarm Level

It sets standard pressure value to issue the low pressure alarm.

Pr-72 : High Pressure Alarm Time

It sets maintaining time of high pressure alarm level to issue the high pressure alarm. That is, if
the current pressure increases above the high pressure alarm level (Pr-70) and maintains its
state for a specified time, a high pressure alarm is displayed and operation stops.

48

Pr Mode (Pump Control Mode)

Drive

Pr-73 : Low Pressure Alarm Time

It sets maintaining time of low pressure alarm level to issue the low pressure alarm. That is,
if the current pressure decreases under the low pressure alarm level (Pr-71) and maintains
its state for a specified time, a low pressure alarm is displayed and operation stops.

Pr-74 : Low Water Level Alarm Time of Pressure Sensor

It sets maintaining time of alarm level to issue the low water level alarm.
That is, if the current pressure decreases under the low pressure alarm level (Pr-75) and
maintains its state for a specified time, an alarm is displayed and operation stops.

Pr-75 : Low Water Level Alarm Pressure Level

It is a pressure level to determine low water level when selecting software detection method from
Low Water Level Alarm Detection Method Selection (Pr-76).

Pr-90 : Initialization Code

It carries out initialization with factory settings.

Setup Data Functional Description

0 (Factory Setting) To maintain settings (Factory Setting)

1 To initialize with factory settings

Pr-92 : S/W Version

It displays program version.

dr mode (Drive Control Mode)

DescriptionDisplay

dr-01

Command Input Location Setup

dr-02

T

arget Freq. Input/Method Setup

dr-03

Target Freq. Value Setup

dr-12

Current of Motor

dr-20

Selection of Motor rotation

dr-22

Time Increase

dr-23

Time Decrease

No. of Restart after Trip

dr-37

Waiting Time of Automatic Restart after Trip

dr-38

Accumulated Mega Wh indication

dr-53

Accumulated Kilo Wh indication

dr-54

Initializing Integrated Watt

dr-89

Initalization Code

dr-90

To setup initial value according to drive capacity
To setup initial value with basis of Dooch induction motor

3.0

6.0

PARA.

Interlock

X

0

X

X

X

3

X

10

X

-

X

-

X

0

X

0

X

Setting Range

0~1 X X0

0~3 X X0

0~60[Hz] X30.0 X

1.0~100.0[A]

0~1

1.0~600.0[sec]

1.0~600.0[sec]

0~50

1~250[sec]

0~9999[MWh]

0~9999[KWh]

0~1

0~1

Factory
Setting

Change
of
operation

X

X

○

○

○

○

-

-

X

X

1Φ

PHRASE

Drive

3Φ

PHRASE

dr mode (Drive Control Mode)

Drive

dr-01 : Command Input Location Setup

It sets operation command location.
When selecting FND key, it is possible to issue operation command using key on main body of drive.
When setting up terminal block, it is possible to issue operation command using external input(P1)

Setup Data

0 (Factory Setting) Operation Command with FND

1 Operation Command with Terminal Block(P1)

Functional Description

dr-02 : Target Frequency Input Method Setup

It sets up target frequency input method of drive.

Functional DescriptionSetup Data

0 (Factory Setting) Setup with own PID operation

1

2

3

Setup when using fixed freq.
on the main body of FND drive

Setup with external voltage V1(0~10V)

Setup with external current I1(4~20mA)

Related Function

Target Freq. Value Setupdr-03

dr-03 : Target Frequency Value Setup

When using as a fixed frequency, it is possible to set up target frequency value.
Target Frequency Input Method (dr-02) should be set with FND.

Factory Setting Input Range

30.0 [Hz] Start Freq. (dr-42) ~Max Freq (dr-43)[Hz]

dr-12 : Motor Rated Current

It sets up rated current (RMS) of the motor. It is based on the rated current indicated on the
nameplate of the motor.

dr-20 : Motor Rotation Direction Selection

It sets up rotation direction of the pump.
Be sure to check the rotation direction of the pump for normal operation. As the rotation
direction may change according to wiring, be sure to check it.

Setup Data Functional Description

0 (Factory Setting) Forward Direction– CW(Clockwise)

1 Reverse - CCW(Counterclockwise)

dr mode (Drive Control Mode)

dr-22 : Rising Time

It is time to reach max frequency from 0[Hz].
If rising time is too short, over- current fault may be occurred during
motor operation.

dr-23 : Falling Time

It is time to decelerate to 0[Hz] from max frequency.
If falling time is too short, over- voltage fault may be occurred during
motor operation

dr-37 : No. of Auto Restart after Trip

It refers to No. of automatic operations for drive after occurrence of trip.
If the trip occurs more than specified number, it can not restart.
If there is no trip during certain time, No of trip might be deleted.
It may not be restarted according to error code. Refer to Chapter 7 Fault
History Table.

dr-38 : Automatic Restart Waiting Time after Trip

When a specified time elapsed after trip, it restarts.

dr-53 ~ 54 : Indication of Accumulated Power

It displays accumulated power of drive in Mega, kilo Wh unit.
Displayed accumulated power may have error comparing to actual value.

Drive

Functional DescriptionParameter

dr-53 To display in Mega Wh unit

dr-54 To display in Kilo Wh unit

dr mode

(Drive Control Mode)

dr-89 : Initialization Code

It initializes to the factory settings.

Caution : All present data will be lost once it is re-setted to the factory setting.

Setup Data Functional Description

0 (Factory Setting) To maintain content

1 To initialize dr-53, dr-54 to the factory settings

dr-90 Initialization Code

It initializes to the factory settings.

Setup Data Functional Description

0 (Factory Setting) To maintain content

1 To initialize dr-group to the factory settings

Drive

Terminal Block(Internal)

Rated Input and Output (Three Phrase)

Drive

Model NSQ-_____T

Standard Motor [kW]

Standard Motor [HP]

Output Capacity[ [kVA]

Rated Output Current [A]

Output Voltage [V]

Output Frequency [Hz]

Rated Input Voltage [V]

Input Frequency [Hz]

Protection Class

Switching Frequency [kHz]

Cooling

Controlling Method

Control Operation

Frequency Stability

Overload Resistance

Torque Boost

Operation Method

Frequency Setting

Acceleration
/Deceleration Time

Abnormal Reset

Operation

Status

Abnormal Output

Operation Status

Other Functions

Protection Structure

Display

Drive Info.

Abnormality

Conditions

Environment

Operation

Ambient Temp.

Storage Temp.

Surrounding Humidity

Model Specification

0075 0150 0400 0550 0750 1100 1500 1850 22000220

0.75 1.5 2.2 4 5.5 7.5 11 15 18.5 22

1 2 3 5.5 7.5 10 15 20 25 30

2 2.6 4 5.9 7.9 10.5 15.8 19.7 25.7 29.6

   9 12 16 24 30 39 45

380 ~ 440

0.05 ~ 50/60

3 380V ~ 440V

50/60

IP55

1 ~ 15

Natural Cooling

V/F Control, Slip Compensation Control

1% of Rated Frequency

120% 1 Min,

Manual Torque Boost (0~10%)

FND / Terminal / Communication (CAN) Operation

FND / Terminal (0~10V or 4~20mA)

1 ~ 600 sec.

Automatic Reset upon Automatic Restart Setting

Output(FLT-AT,CT,BT), LED Output

Output(FLT-AT,CT,BT), LED Output

Freezing Protection for Pump, Auto Recovery after Power Fail, High/Low Pressure

Alarm, Low Water Level Detection, Multi-Drive Control, Failure History Storage,

Forced Alternative Operation, PID Control,

Fixed Frequency Operation, Dry running Protection

High Voltage, Low Voltage, Over Current, Surge, Overload, Inverter Overheating,

Output Wire Disconnection, Communication Error

Current pressure, Setting pressure, Output frequency, DC link voltage, Output ampere

Pressure Sensor Error, High/Low Pressure Alarm, Low Level Alarm, Drive Error

Altitude 1,000M or lower. Keep out of Corrosive Gases and Liquid, Dust

℃℃

℃℃

Below 90% RH of relative humidity (with no dew formation)

Fan Cooling

Fault History Table

Drive

FND

Display

Er-01

Er-02

Er-03

Er-04

Er-05

Er-06

Er-07

Er-08

Er-09

Er-10

Er-11

Er-12

Er-13

Er-14

Er-15

Er-16

Er-17

Er-18

Er-20

Er-21

Discription Refer to page

Pressure Sensor Error

High Pressure Alarm

Low Pressure Alarm

Low Level Alarm

Drive Arm Short Trip

Drive H/W Over Current Trip

Drive H/W Over Current Restriction Trip

Motor Overheat (TMOH)

Drive Overheat Trip

DC-Link Low Voltage Trip

DC-Link High Voltage Trip

Overload Operation Trip

Drive Overload Operation Trip

Ground Trip

Communication ID Duplication Trip

Communication Error

The Defects of Input

The Defects of Output

External Fault Input

Allowable Time Elapsed

Restarting

O

O

O

O

X

O

O

O

O

O

O

O

O

X

X

X

X

X

X

X

29

30

Troubleshooting

Reset of fault and alarm

In case of fault or alarm, FND shows Pr-80.
To reset in Pr-group, Press twice.
To reset in St-group, Press once.
In case of Er-01, Er-02, Er-04(Low Level Sensor Alarm), If cause is resolved, it reset
and restart automatically. In case of reset without resolving cause, it alarm again.

Cause of Fault and Reaction

Er-01 (Pressure Sensor Error-tSF)

Cause Reaction

Sensor Error
Drive Mulfunction
Sensor Terminal Wiring

Cause

Reaction

In case the current pressure increases more than 2bar than the pressure setting during operation, operation will stop
after elapsed High Pressure Alarm Time (Pr-72) and the alarm lamp will be turned on.(It may occur on temporary
installation site or trial run test.)

Check the setup pressure and high pressure alarm level.
When the current pressure goes down under the high pressure alarm setting, the
drive will recover automatically.

Replace sensor.

Replace drive.

Check sensor terminal wiring or comm.. ID setup incase of interoperation.

Er-02(High Pressure Alarm-tOP)

Drive

Cause

Reaction

Er-03 (Low Pressure Alarm-tLP)

The alarm will be generated when the current operation pressure is maintained under the low pressure alarm
level. It starts automatically after Automatic Restart Time (dr-38) from trip. However, if it repeats more than
No. of Automatic Restart after Trip (dr-37), it does not restart anymore to protect motor and drive.

Check if the water tank (water reservoir) is filled with water.
Check if the air enters into the pump.
Check if there is any water by opening air cock of pump.
After releasing error by pressing key, press key to start the pump.

Cause

Reaction

Troubleshooting

Communication

Er-04 (Low water Level Alarm-tUL))

It is an alarm generated to prevent the mechanical seal from being damaged due to running of the pump when there is
no water on the suction side. It is generated when the low levelsensor (electrode) does not detect the water. In case
of not using the low water level sensor, the software generates the alarm when the current pressure is maintained
under the low pressure alarm level (Pr-75)and operation continues for low pressure trip time(Pr-74).

Check if the water tank (water reservoir) is filled with water.
Check if there is any water by opening the air cock of the pump.
After relea sing error by pressing key, press key to start the pump

Air Vent

Inlet Air Valve

RS-485(Option)

Communication

Communication Specification

Article Specification

Communication Speed 1200/2400/4800/9600/19200 bps

Control Procedure Asynchronous Communication

Communication System Half duplex system

Letter 8 bit

Stop bit 1 bit

Error Check (CRC16) 1 byte

Parity Check None

Communication Protocol(ModBus - using RTU protocol)

Code Name

0 X 03 Read Hold Register

0 X 06 Preset Single Register

READ

Query(Example of reading set pressure)

Start Slave ID Function Add Hi Add Lo No Hi No Lo CRC END

3.5 byte
XX032 0 0 20001XXXX

Time

Time Hex

Response

Start Slave ID Function Byte Count Data Hi Data Lo CRC END

3.5 byte
XX03 0 2 0037 X X X X

Time

Time Hex

3.5 byte

3.5 byte

Single Write

Query(Example of writing the set pressure 5.5bar)

Start Slave ID Function Add Hi Add Lo Data Hi Data Lo CRC END

3.5 byte
Time

XX06 2 0 0 2 0 0 3 7 XXXX

3.5 byte

Time Hex

Response

Start Slave ID Function Add Hi Add Lo Data Hi Data Lo CRC END

3.5 byte
Time

XX06 2 0 0 2 0 0 3 7 XXXX

3.5 byte

Time Hex

RS-485(Option)

Fault Diagnosis-in case the communication is not connected

Check List Remark

Connections between the NSQ Drive and the
Master computer/FA equipment

RS485 Pr-40 485 comm. Mode

RS485 comm. speed Pr-42 485 comm. Speed

RS485 comm. ID Pr-41 485 comm. ID

CAN comm. ID

Verify the starting communication of the Master
computer/FA equipment

Data formatting of the user's programm

Check terminal block

Pr-51 CAN comm. ID(must be set, as 485
is communication with master of pump system)

Communication

Warranty

This product has been manufactured through a strict quality management and inspection

process by Dooch Technical Team. The warranty period is 12 months from the date

manufactured, provided that, the warranty period is subject change depending on the terms

and condition of the agreement under separate cover.

Maker

Model No. Warranty Period

Customer

Information

Sales Office

(Distributor)

FOC Service

If there is any failure in the product during the afore-mentioned warranty period you can have

it repaired FOC by requesting our distributor or designated service center subject that you are

found to have used it under our recommended environment. For further details, please refer

to out company's regulation.

Charged Service

In the event of any of the following cases, the service will be charged.

※

- The failure occurred from the consumer's improper storage, handling, and careless handling

- The failure occurred from the consumer's error in the design of software or hardward

- The failure occurred from the error of power source and the defect of the connector

- The failure occurred from the force majeure (fire, flood, gas disaster, earthquake, etc.)

- The product was modified or repaired at the discretion of the consumer in the place other

than our distributor or the Service Center.

- The name plate provided by DOOCH is not attached on the product

- The product was used in an improper way or beyond the operating range.

Waiver of the warranty for the mechanical loss, etc.

※

Dooch Co., Ltd. doesn't bear any responsibility to indemnify indirect, special, incidental, or

consequential loss (including the indemnification of sales loss, loss profit, etc.

Name

Address

Tel.

Name

Address

Tel.

Head Office & Factory : 332 Hwagok-ro, Jangan-myeon,

TEL : [phone] FAX : [phone]

Hompage : www.doochpump.com

Installation DateDOOCH CO., LTD.

Hwaseong-si, Gyeonggi-do, Korea

NSQP-1507-M

NSQP

HNSQP

PREMIUM
BOOSTER PUMP SYSTEM

DOOCH CO., LTD. │ 332 Hwagok-ro, Jangan-myeon, Hwaseong-si, Gyeonggi-do, Korea
TEL : [phone] FAX : [phone] www.doochpump.comwww