dooch Q-Drive NQ-0400-S User manual

User Guide
Model : AC Drive (V.F.D)
(3-Phase input)
www.doochpump.com

[SAFETY PRECAUTIONS]
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Preface
Thank you for choosing DOOCH’s high performance Q-Drive series.
The Q-Drive is a dedicated pump drive designed for variable Speed pumping system.
The Q-Drive is manufactured with high-quality components and materials and incorporate
the latest microprocessor technology available.
This manual is published for the consumers to easily operate the pump system since the
Q-drive is attached to the pump system.
Before installation and operation please peruse in this manual thoroughly.
※The information contained in this manual is subjected to change without prior notice.
Safety Precautions
ㆍSince the safety precautions are actions to allow using this product safely and rightly in
order to prevent possible accident or dangers from occurring, be sure to follow them.
ㆍThis user’s manual contains two kinds of marks such as ‘WARNING,’ and CAUTION.
ㆍThese marks are warning clauses against possibility of faulty use by the users.
ㆍIn order to fully understand the marks for safe procedure, please read the manual
through the end before using the equipment.
ㆍPlease keep this manual where the user of this driver can read it at any time.
Warning:
It indicates a potential dangerous situation that may cause some fault,
serious injury or death if the instruction is not being observed.
Caution:
It shows a potential dangerous situation that may cause some damage
on the product and loss of property if the instruction is not being observed.

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ㆍDo not open cover during powered state or operation.
(Exposed high voltage terminals or charging part of DC voltage may
cause electric shock.)
ㆍDo not open cover even when power is not supplied except for
wiring or inspection work.
(When the power is turned off, charged DC voltage in charging part
of drive may cause electric shock.)
ㆍDuring wiring work or regular inspection, cut off the power and
check with tester if DC voltage is discharged after elapsed
more than 10 minutes.
(It may cause electric shock. Execute work when charging voltage
of DC part is DC 30V or less.)
ㆍDo not operate the switch or drive with wet hands.
(It may cause electric shock.)
ㆍWhen any part of drive input or cable jacket is damaged,
do not apply electricity or operate the equipment.
(It may cause electric shock.)
ㆍDo not put over stress on the input/output power cable or
signal wires of the drive with heavy object.
(It may damage on the cable jacket to cause electric shock.)
ㆍDo not install the equipment near the inflammable materials.
(Installation on or near the inflammable materials may cause fire.)
ㆍWhen drive has any fault, cut off the input power.
(If not, it may cause fire due to consequent accident.)
ㆍDo not touch the drive during powered state or several minutes
after power is turned off.
(Since drive has high temperature after operation, body contact
may cause burn.)
ㆍDo not input power for the drive with damaged product and
part even if installation is completed.
(It may cause electric shock.)
ㆍDo not leave any damageable objects from inside of drive, such
as screw, metal, water, oil, etc.
(It may cause fire.)

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Cautions for Use
A. Transportation and Installation
ㆍTransport the product with correct method according to its weight.
ㆍDo not stack the products with more than specified layers.
ㆍInstall the product upon rules described on the User’s Manual.
ㆍDo not open during transportation of the product.
ㆍDo not put any heavy object on the product.
ㆍInstallation direction shall follow criteria specified on the User’s Manual.
ㆍDo not fall or give strong impact on the drive as it is a precise instrument.
ㆍDraw water completely out of the pump during winter without using for a long time.
ㆍUse the drive under the environmental conditions as mentioned below.
Installation Location Keep out of corrosive gasses, inflammable gasses,
Liquid and dust.
Temperature/Humidity -10 ~ 40℃/ Not more than 90% RH (No dewdrop)
Storage Temperature -20 ~ 65℃
Elevation
Vibration
Altitude 1,000m or lower
below 5.9m/sec²(=0.6g)
Ambient Atmospheric Pressure 70 ~ 106 kpa
B. Wiring
ㆍAfter installing the main body, execute wiring.
ㆍWiring or inspection shall be performed by the professional technicians.

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ㆍDo not install static condenser, radio noise filter, and so on at the output terminals of the
drive.
ㆍCheck if the power input line and motor output line are interchanged.
ㆍFaulty terminal connection may cause damage on the drive.
ㆍUse the circuit breaker.
※Do not install leakage breaker at the power input.
* If you have any problems , please contact our local agent.
C. Checkup on Initial Operation
ㆍBe sure to check setup parameters of the drive before operating it first. It may require
changing parameters according to states such as type of pump or installed system
environments.
ㆍFor terminal blocks for main power circuit and control circuit, be sure to follow connection
method and electrical specifications specified on this manual. Improper use may damage on
the drive.
ㆍBe sure to use pressure sensors and low water level sensor specified by Dooch.
D. Operation
ㆍSince it has automatic restart and recovery functions after power failure in default
and it is automatically restarted in case it is stopped due to fault or system alarm or power is
turned off during operation, be careful when power is applied initially.
ㆍDo not modify or change inside of the product without approval
ㆍDo not start or stop the drive with electronic contactor installed at the power input.
ㆍInstall EMC filters to reduce impact from electromagnetic wave in order to protect
electronic equipment being used near the drive.
ㆍInstall input reactor when input voltage is in unbalanced condition. Static condenser or
generator may be overheated and destroyed due to high frequency on power source
generated by drive.

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ㆍIn case of driving 400V class motor with the drive, use the motor with reinforced
insulation or conduct suppress measure against micro-surge voltage. (Motor may
be sometimes destroyed upon deteriorated its insulation performance due to
micro-surge voltage.)
ㆍIn case of initialization of parameters, set up required parameters again before
operation. Parameter initialization changes the parameter values to factory settings.
E. Reaction on Failure and Malfunction
ㆍIn case drive is destroyed to make operation impossible, reliability of pump system
may become deteriorated. It is recommended to install additional auxiliary system in
preparation of such situations.
ㆍFor countermeasure against drive failure, refer to Chapter 7

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[CONTENTS]
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CONTENTS
[ Chapter 1. Basic Matters ]
1.1 Nameplate information
1.2 Type of product
1.3 Installation
1.4 Wiring
[ Chapter 2. Specification ]
2.1 Specification of Product
[ Chapter 3. External Dimension ]
3.1 NQ-0075T ~ NQ-0220T
3.2 NQ-0400T
3.3 NQ-0550T ~ NQ-0750T
3.4 NQ-1100T ~ NQ-1500T
3.5 NQ-1850T ~ NQ-2200T
[Chapter 4. Installation ]
4.1 Caution on Installation
4.2 Wiring Diagram of Terminals
4.3 Wiring of Main Power Supply Circuit
4.3.1 Description on Main Power Supply Terminals
4.3.2 Caution on Main Power Supply Wiring
4.3.3 Caution on Ground Wiring
4.3.4 Specification of Recommended Wires and Terminal Screw
4.4 Control Circuit Wiring
4.4.1 Arrangement of Control Terminal Block
4.4.2 Functions of Control Terminal Block
4.4.3 Cautions on Control Circuit Wiring
4.4.4 Connection of Pressure Sensor and Low Water Level Sensor
4.4.5 Sink Mode and Source Mode
4.4.6 Communication Line Wiring

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[ Chapter 5. Operation ]
5.1 FND
5.1.1 Appearance and Description of FND
5.1.2 Functional Description of each Part
5.1.3 How to change Parameter Settings
5.2 Function Setup
5.2.1 Basic Function Setup
5.2.2 Expansion Function Setup
5.3 Basic Operation
5.3.1 Constant Pressure Control Mode
[ Chapter 6. Function Table & Description]
6.1 Display of present status
6.2 Pump Control Group
6.3 Drive Control Group
6.4 Description on Function of Parameter Settings
6.4.1 Pump Control Group
6.4.2 Drive Control Group
[ Chapter 7. Cause of Fault and Reaction ]
7.1 Fault History Table
7.2 Reset of fault and alarm
7.3 Cause of Fault and Reaction
[ Chapter 8. Appendix ]
8.1 RS-485
8.2 Peripherals
8.3 EMC filter

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[CHAPTER 1 BASIC MATTERS]
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1. Precautions before Using
1.1 Information Nameplate
After taking drive out of the package box, check up the nameplate at the side of the body
and verify if the type, rated output and so on of the drive are matched with the ordered
product. In addition, check if there is any damage during transportation.
* If you have any question or the product has any abnormal state, please contact the
agent or A/S center of Dooch.
- Nameplate of the Product –
1.2 Type of Product
NQ- 0 7 5 0 T ①
②
T : Three phase
It indicates capacity in 00.00kW unit.
Type of Drive
Input specification
Output specification
0075 : 0.75kW(1HP)
0220 : 2.20kW(3HP)
0550 : 5.50kW(7.5HP)
1100 : 11kW(15HP)
1850 : 18.5kW(25HP)
0150 : 1.50kW(2HP)
0400 : 4.00kW(5.5HP)
0750 : 7.50kW(10HP)
1500 : 15kW(20HP)
2200 : 22kW(30HP)

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[CHAPTER 1 BASIC MATTERS]
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ㆍProduct model name is indicated as above. Initial four digits indicate driving
capacity of the drive in 00.00kW unit. Decimal point is not indicated.
ㆍ'T' refers Three phase.
ㆍ‘D’ means CAN Driver indicating Multi-Drive control system. If it is a single type, D will
be omitted.
1.3 Installation
Install the drive with proper method under specified conditions considering its
life and performance.
1.4 Wiring
Connect power supply and motor to the power supply terminal block and operation and
control signal to the control terminal block. Since improper connection will cause
malfunction or damage, be sure to wire with specified method.

[CHAPTER 2 SPECIFICATIONS OF PRODUCT]
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2. Specifications of Product
Model NQ-_____S, T(D) 0075 0150 0220 0400 0550 0750 1100 1500 1850 2200
Standard Motor [kW] 0.75 1.5 2.2 4 5.5 7.5 11 15 18.5 22
Standard Motor [HP] 1 2 3 5.5 7.5 10 15 20 25 30
Rated
Output
Output Capacity [kVA] 2 2.6 4 5.9 7.9 10.5 15.8 19.7 25.7 29.6
Rated Output Current
[A] 3 4 6 9 12 16 24 30 39 45
Output Voltage [V] 380 ~ 440
Output Frequency
[Hz] 0.05 ~ 50 / 60
Rated
Input
Rated Input Voltage
[V] 3φ 380V ~ 440V (-15% ~ +10%)
Input Frequency [Hz] 50 / 60 (±5%)
Protection Class IP55
Switching Frequency [kHz] 1 ~ 15
Cooling Natural Cooling Forced Fan Cooling
Control
Controlling Method V/F Control, Slip Compensation Control
Frequency Stability 1% of Rated Frequency
Overload Resistance 120%, 1 minute
Torque Boost Manual Torque Boost (0~10%)
Operation
Operation Method FND / Terminal / Communication (CAN) Operation
Frequency Setting FND / Terminal (0~10V or 4~20mA)
Acceleration/
Deceleration Time 1 ~ 600 Sec.
Abnormal Reset Automatic Reset upon Automatic Restart Setting
Output
Signal Abnormal Output Output Contact (FLT-AT,CT,BT), LED Output
Operation Status Output Contact (RUN-AT,CT,BT), LED Output
Other Functions
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
Protection Functions High Voltage, Low Voltage, Over Current, Surge, Overload, Inverter Overheating, Output Wire
Disconnection, Communication Error

[CHAPTER 2 SPECIFICATIONS OF PRODUCT]
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Display
Code
Drive Information Output Frequency, Pump’s Current Pressure, Pump’s
Setting Pressure, DC Voltage, Output Current,
Input/Output Pressure (on Differential Pressure Control)
Abnormality
Information Pressure Sensor Error, High/Low Pressure Alarm, Low Level Alarm, Drive Error
Use
Condition
Installation
Location Altitude 1,000M or lower Keep out of Corrosive Gases andLiquid, Dust
Ambient Temperature -10℃~40℃
Storage Temperature -20℃~ 60℃
Ambient Humidity Under 90% RH (No Due)

[CHAPTER 3 EXTERNAL DIMENSION]
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3. External Dimension
3-1. NQ-0075T~NQ-0220T
H W D W1 D1 Weight
NQ-0075T 143 151 229 133 217 2.9kg
NQ-0150T 143 151 229 133 217 2.9kg
NQ-0220T 143 151 229 133 217 3kg

[CHAPTER 3 EXTERNAL DIMENSION]
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3-2. NQ-0400T
H W D W1 D1 Weight
NQ-0400T 162 151 229 133 217 3.3kg

[CHAPTER 3 EXTERNAL DIMENSION]
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3-3. NQ-0550T~NQ-0750T
H W D W1 D1 Weight
NQ-0550T 176 290 290 189 277 5.5kg
NQ-0750T 176 290 290 189 277 5.7kg

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[CHAPTER 3 EXTERNAL DIMENSION]
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3-4. NQ-1100T~NQ-1500T
H W D W1 D1 Weight
NQ-1100T 186 390 290 185 277
NQ-1500T 186 390 290 185 277
12.4kg
12.4kg

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[CHAPTER 3 EXTERNAL DIMENSION]
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3-5. NQ-1850T~NQ-2200T
H W D W1 D1 Weight
NQ-1850T 186 440 290 210 277
NQ-2200T 186 440 290 210 277
14kg
14kg

[CHAPTER 3 EXTERNAL DIMENSION]
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