Grundfos Redi-Flo3 Bedienungsanleitung

GRUNDFOS PRODUCT GUIDE

Redi-Flo3™ and CU 300

Environmental Pumps

60Hz

Table of Contents

Features and Beneﬁts .....................................pages4-5

Applications .............................................pages6-7

Communications ........................................pages8-12

Performance and Technical Data ..........................pages13-17

Accessories ..............................................page18

Features and Benefits

Redi-Flo3 Submersible Pumps

Redi-Flo3 pumps are suitable for both continuous and

intermittent operation for a variety of environmental

applications including:

• Remediation

• Pollution Recovery

• Leachate Recovery

• Dewatering

• Tank Applications

Redi-Flo3 pumps offer the following features:

• Dry-Run Protection

• High Efﬁciency Pump End and Motor

• High Starting Torque

• Protection Against Up-Thrust

• Soft-Start

• Over- and Under-Voltage Protection

• Overload Protection

• Over-temperature Protection

• Variable Speed

• Electronic Control and Communication

Redi-Flo3 pumps incorporate a totally new motor

design. With the use of permanent-magnet technology

within the motor, Redi-Flo3 pumps deliver unmatched

performance. The combination of permanent-magnet

motors and Grundfos’ own micro frequency converter,

we are now able to communicate with the pump in ways

never before possible. Just a few of the features that

come out of this combination are constant level control,

soft-start and integrated dry-run protection. These are

just a few of the many features that Redi-Flo3 pumps

can offer.

Redi-Flo3 pumps use the Grundfos “Smart Motor”.

This permanent-magnet motor is single phase input

and with a 2-wire design makes installation easy. The

combination of integrated microelectronics in the pump

with the optional CU300 status box and R100 at the

surface allows communication with the pump through

standard electrical motor power leads. No additional

wires are required. This feature allows the direct use of

multiple sensors, digital input and relays without adding

extra control electronics and costs.

The surface CU300 status box allows communication

with the “Smart Motor” through the R100 infrared

remote control unit or via the CU300 PC Software

Tool. This gives you the ability to monitor and setup

or change your pumping system to meet the speciﬁc

needs of your application.

High Pump Efﬁciency

The pump end components are made from Polyvinylidene

Fluoride (PVDF). The pumps are designed to deliver at

peak efﬁciency levels. Because of high pump efﬁciencies,

overall power consumption will be reduced.

Dry-Run Protection

The Redi-Flo3 incorporates integrated Dry-Run protection.

When the ﬂuid level falls below the inlet of the pump,

the pump automatically shuts off. After a programmable

period of time, the pump automatically starts up again.

High Motor Efﬁciency

Redi-Flo3 motors are based on a permanent magnet

rotor, which produce high efﬁciency within a wide

load range. The high and ﬂat efﬁciency curve of the

Permanent-Magnet (PM) motor allows for coverage of

a wide power range with the same motor as compared

to conventional submersible AC motors. For Redi-Flo3

pumps, this means only three motors to cover the

horsepower range from 1/3 to 1.5Hp.

The Redi-Flo3 can operate without the status control

box much like a traditional submersible electric pump.

Some communication and program functions will not

be available in this conﬁguration, but the internal motor

protection features are still active.

Pump and Motor Range

Product Description

Redi-Flo3 10, 22, GPM

Pump End

MSE3NE Single Phase

Motor 1/3 - 1.5 Hp

200 250 300 350 400 450 500 550 600 (W)

(%)

MS3

Conventional 3ph

Conventional 1ph

Features and Benefits

Wear Resistance

Redi-Flo3 pump design uses “ﬂoating” impellers. Each

impeller has its own tungsten carbide/ceramic bearing.

This design and the environmental quality of materials

make this pump an excellent choice for environmental

application projects.

Protection Against Up-Thrust

During start-up many pumps start in an up-thrust

condition. To prevent damage caused by up-thrust, a top

bearing has been placed in the motor to protect both

the pump and the motor against up-thrust.

Soft-Start

Redi-Flo3 have a soft-start feature possible because

of the integrated electronics. Soft-start reduces the

starting current and gives the pump a smooth and

steady acceleration.

High Starting Torque

Because of the permanent-magnet motor, the Redi-

Flo3 pumps have excellent starting capabilities. The

high locked rotor torque produced by the PM motor

provides a starting torque that is 1.5 times greater than

conventional submersible pump motors. Even if the

voltage is low, the PM motor will still maintain a high

starting torque.

Overvoltage and Undervoltage Protection

Overvoltage and undervoltage may occur at any time,

especially if you have an unstable voltage supply. The

integrated protection in the Redi-Flo3 motor protects itself

when voltage falls outside of permissible voltage range.

The 230V pump motor will cut out if voltage falls below

150V or above 280V. The motor will automatically start

when the voltage is within the permissible range. It is not

necessary to have additional voltage protection.

Overload Protection

When the pump load rises above the maximum amp level,

the motor will automatically compensate and reduce the

speed to maintain its maximum amp level. If the speed

drops to 65% of the nominal speed, the motor will shut

off.

Overtemperature Protection

Permanent-magnet motors emit very little heat because of

their high efﬁciency. Redi-Flo3 motors are designed with

an internal circulation system to effectively cool all the

internal components.

As extra protection, the electronic unit also has a built-

in temperature sensor. When the temperature rises too

high, the motor will automatically shut-off; when the

temperature drops the motor will automatically restart.

Variable Speed

The Redi-Flo3 “Smart” motor enables continuous variable

speed control within 30%-100% (3,000-10,700 rpm). The

pump can be set to operate at any duty point in the range

between 30% and 100% of the pumps performance curve.

The pump can be adapted to any speciﬁc requirement.

The variable speed control requires the status box and R100

or potentiometer.

Installation

Redi-Flo3 pumps can be installed vertically or horizontally

(Note: the pump must not fall below the horizontal level in

relation to the motor). For horizontal installations, a ﬂow

sleeve is recommended to ensure sufﬁcient ﬂow past the

motor to provide proper cooling and prevent the unit from

being buried in sand or silt.

Amps

DOL

sec.

Soft start

Maintaining a Constant Water Table

Introduction

By monitoring the water table and controlling the pump,

the water table can be maintained at a constant level.

EXAMPLES OF APPLICATION:

For example maintaining a constant water table is

useful in the following situations:

• When the groundwater should be kept out of a

building site.

• When the salt water should be kept from penetrating

a borehole with potable water.

Remedial Pumping with Water

Quality Monitoring

Introduction

By means of sensor signals it is possible to carry

out remedial pumping where the water contains

contamination e.g. chemicals, oils, etc.

Applications

Remediation/Pollution Recovery/Dewatering

Connection of a sensor such as a submersible pressure sensor enables the pump via the status control box to

maintain a constant level by starting and stopping the pump based on a desired water level.

Description

Pos. Description

1 CU300

2 Level sensor

Description

Pos. Description

1 CU300

2 pH sensor

Detects the water quality

3 Level sensor

Sensor 1 (tank at top)

Pumping from One Tank to Another

Where there is a need to move water from one tank to another, the Redi-Flo3 is ideal.

Applications

Level Description

Max. (stop) When the water has reached this level,

the pump stops. Green indicator light in

on/off-button ﬂashes.

Min. (start) When the water has dropped to this level,

the pump starts. Green indicator light in

on/off-button is constantly lit.

Description

Pos. Description

1 CU300

2 Level sensor

3 Water tank

NOTE: When the Redi-Flo3 pump is installed

horizontally, it is recommended that a ﬂow sleeve be

ﬁtted. The motor must be fully submerged in the water.

Sensor 2 (bottom tank)

Level Description

Min. (stop) When water has dropped to this level,

tank is empty, stop pump.

Status Control Box Communication

Redi-Flo3 CU300 Status Box

The CU300 status box is a control and communication

unit especially developed for the Redi-Flo3 submersible

pumps.

The CU300 status box provides:

• Easy adjustment to a speciﬁc well

• Full control of Redi-Flo3 pumps

• Two-way communication with the Redi-Flo3 pumps

• Indicator lights on the front to indicate alarms

• The ability to start and stop the pump with the push

of a button.

The CU300 communicates with the pump using the

power leads. It is not necessary to run any extra cables

between the pump and the CU300 status box.

The following alarms can be indicated by the CU300:

• No Contact

• Overvoltage

• Undervoltage

• Dry-run

• Speed Reduction

• Overtemperature

• Overload

• Sensor Alarm

The CU300 incorporates:

• External signal input for three sensors

• relay output for external alarm control

• Control according to the signals received, e.g. ﬂow,

pressure, water level and conductivity

The CU300 can communicate with the R100 infrared

remote control or R100 PC software tool.

R100 Remote Control or PC Software Tool

The R100 allows you to monitor the installation by

reading current operating parameters, such as:

• Power Consumption

• Energy Consumption

• Number of Operating Hours

It allows you to change factory settings. A number of

settings can be made, such as:

• Speed (Performance)

• Constant Pressure Control Mode

• De-watering Function

• Automatic Restart Time

(Inches)

The CU300 Redi-Flo3 control panel communicates with

the Redi-Flo3 motors via the pump power cable to turn

the pumps on and off, set motor speed and monitor

pump status. The technique used for performing this

communication impresses a high frequency data signal

on the pump power cable that is picked off by internal

pump electronics and then decoded into command

instructions. This is the reason for assigning unique

numbers to each CU300 in a multiple unit installation.

The unique number serves as a communication address

between each CU panel/motor pair.

In situations where multiple CU300 pump power cables

are run parallel in wiring trays or conduit and less

than 10-12 inches apart, the possibility for undesired

communication between units exists. When this occurs,

intermittent or continuous NO CONTACT is typically seen.

Other unexpected errors may also be seen.

There are two approaches available to eliminating the

possibility of this occurring:

1. Physical separation of cables – maintain a

minimum distance of 10-12 inches between

pump power cables, and never place more than

one cable in a conduit.

2. Use shielded cable – The use of shielded cable

prevents cross communication between parallel

cables and allows sharing of conduit and cable

trays. Tie the cable shield to earth only at the CU

control panel.

Suitable cables:

Anixter (1-800-321-1486)

In addition, Grundfos recommends applying power to

only one CU panel/motor at a time while programming

the CU number with the R100. This will prevent the

possibility of two pumps receiving the same number

assignment command.

Multiple CU300 Installation Requirements

Manf. Part # Gage

Anixter 2A-1403S 14

Anixter 2A-1203S 12

Anixter 2A-1003S 10

POWER

PUMP

RELAY

DRAIN WIRE

COM

AUX

RELAY

5 6 7

1 2

1098

3 4

LNL N

SHIELDED CABLE WIRING DIAGRAM

R100 Menu Structure

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