Grundfos DPC 2-1 User manual

1 | Page

DPC 2-1

Installation and Operating Instructions

DPC 2-1 For Single Phase Pumps up to 15A

SAFETY 4

INTRODUCTION 5

Applications 5

Features 5

Parameters & Specifications 6

INSTALLATION 7

Tools Used in Controller Installation 7

Controller Components 7

LCD Screen 7

Meaning Of the icons shown In the LCD ------------------------------------------------------ 8

Power Terminal 10

Control PCB connection 11

Installation – Drainage 11

Terminals 11

DIP Switch Settings 12

Electrical Connections 13

Installation – Boosting 16

Terminals 17

DIP Switch Settings 18

Electrical Connections 19

Installation – Water Transfer 20

Terminals 21

DIP Switch Settings 22

Electrical Connections 23

OPERATION 24

Parameter Calibration 24

Erasing Former Parameters 25

Erasing The Parameter Calibration 25

Switching to AUTO mode 25

Switching to MANUAL mode 25

Pump Protection 25

Last Five Failure Records 26

Pump Accumulative Running Time 27

COMMUNICATION LINK 28

Basic Function 29

Special Application 29

Technical Parameters 29

TROUBLE SHOOTING 30

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Following are the safety instructions which must be followed by the service

partners or user while installing & operating the product. If ignored, physical

injury or even death may happen. Read the safety instructions before handling the

system.

NOTE (Notes or attention to ensure safe operation)

Important

The manufacturer is not liable for malfunctioning if the product is not correctly

installed, damaged, modified and/or put to run beyond the working range as

given in this manual.

The manufacturer reserves the right to make any modifications to this product

from time to time.

SAFETY

WARNING

If these safety instructions are not observed, it may result in

malfunction or damage to the equipment.

All electrical connections must be carried out by skilled and qualified

personnel.

Never connect AC power to output L1 & N1 / L2 & N2 terminals.

Ensure the motor, controller and power specifications are matching.

CAUTION

If these safety instructions are not observed, it may result in

personal injury.

Before carrying out any installation or maintenance operation, the controller

must be disconnected from the power supply.

Don’t open the cover while the pump is running.

Don’t put wire, metal bar filament etc. into the controller.

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Thank you for choosing a DPC Series Digital Pump Controller.

The Digital Pump Controller model is easy to use, programmable controller and

protection device for direct start with single phase two pumps with output power

from 0.37kW - 1.5 kW (1.5 - 15A) each.

The controller has many operation modes for adapting different pumping

applications. Important features that distinguish the DPC Series Digital Pump

Controllers from other controllers are the push button calibration for overload and

the ability of dry run protection without float switches. It shows pump parameter,

status and faults, etc.

APPLICATIONS:

The controller is useful in all cases where there is a need to control and

protect two pump installations and managing the automatic operation by a

variety of switching methods.

Typical applications:

Water supply

Irrigation

Sewage

Booster sets

Rainwater reuse

Stormwater

FEATURES:

Built-in function switch for:

Drainage by liquid level control through float switches

Boosting water supply by pressure control through pressure switch and tank

Transfer of water by liquid level control through float

switches Dry run protection without float switches

Auto/ manual switch with screen lock in AUTO mode

Dynamic LCD displaying for pump running status

Protect the pump against many faults

Push button calibration

Pump accumulative run

time Last five fault records

RS485 communication Modbus

Starts and stops the pump in accordance with liquid levels or pressure settings

Pump shaft anti rust feature

INTRODUCTION

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PARAMETERS AND SPECIFICATIONS:

Following chart shows the main technical parameters & specifications:

Main Technical Characteristics

Control characteristic

Double liquid level control

Pressure control

Working modes

Manual / auto

Drainage application

By using float switch

Pressure Boosting application

By using pressure switch

Water Transfer application

By using float switch

Main Technical Data

Rated output power (amperes)

1.5 to 15A for each pump

Rated input voltage

AC 220V / 50 Hz / Single Phase

Trip response time of overload

5 sec - 5 min

Trip response time short circuit

Less than 0.1 sec

Trip response time of under/over voltage

Less than 5 sec

Trip response time of dry run

6 sec (or this can be set manually)

Recovery time of overload

30 min (or this can be set manually)

Recovery time of under/over voltage

5 min

Recovery time of dry run

30 min (or this can be set manually)

Trip voltage of over voltage

115 % of rated input voltage

Trip voltage of under voltage

80 % of rated input voltage

PROTECTIONS COVERED

Dry run (without float/ probe)

Overload (auto-calibrated or can be set)

Transient surge

Under voltage

Over voltage

Pump stalled

Short circuit

Pump shaft anti rust protection

Other Technical Data

Permissible ambient temperature

-5 to +50 deg C

Degree of protection

IP 55

Installation position

Vertical

Unit dimensions (L X W X H)

320 x 420 x 138 mm

Physical interface

RS485 bus interface: Asynchronous

Baud rate

1200, 2400, 4800, 9600 bps (default)

Protocol type MODBUS protocol (RTU)

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Please read this manual carefully before starting installation and operation. Any

damage to the equipment caused due to failure to comply with the descriptions

in this manual in installation or operation will be beyond the scope of the

company’s quality guarantee.

TOOLS USED IN CONTROLLER INSTALLATION:

Controller installation and wire installation will need the following tools,

you also can choose the right tools according to your own experience.

Back view

Side view

wall

Mounting

clamp

CONTROLLER COMPONENTS:

Voltage Displaying

Area

Ampere Displaying

Area

Fault Displaying

Area

Pump Running Status

Displaying Area

INSTALLATION

LCD

SCREEN

8 | Page

MEANING OF THE ICONS SHOWN ON THE LCD:

The parameter configuration icon,

when this icon appears, controller is in

manual parameter adjustment mode.

Time displaying icon, when this icon

appears, it mean controller is displaying

some parameter of time, eg: pump dry

run trip time(units: seconds).

Pump fault icon, when this icon

appears, it means controller is

displaying some fault condition.

Network connection error icon, when this

icon appears, it means there is no network

connection or network connection error

between pump controller and

computer/SCADA/BMS.

Network normal connection icon, when

this icon appears, it means the network

connection between pump controller and

computer/SCADA/BMS.

Voltage

Minute

9 | Page

Second

Hour

Ampere

Percent

Pump running

Pump stopped

Low pressure or lack of pressure in the

pipeline or pressure tank.

High pressure or full of pressure in the

pipeline or pressure tank.

Pump A

Pump B

10 | Page

POWER TERMINAL CONNECTIONS:

Single Phase (without running capacitor) Single Phase (with running capacitor)

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