Grundfos Conex DIS-2Q Installation And Operating Instructions Manual

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Page 1

Conex® DIS-2Q

Installation and operating instructions

GRUNDFOS INSTRUCTIONS

Page 2

English (GB) Installation and operating instructions

Caution

Note

English (GB)

Original installation and operating instructions.

CONTENTS

Page

1. Symbols used in this document

2. Parameter settings

3. General information

4. Applications

5. Safety instructions

5.1 Obligations of the owner

5.2 Avoiding danger

6. Identification

6.1 Nameplate

7. Technical data

7.1 Enclosure class

7.2 General data

7.3 Electronic data and functions

7.4 RS-485 interface

7.5 Dimensions

8. Installation

8.1 Transport and storage

8.2 Unpacking

8.3 Installation requirements

8.4 Installation in control panel

8.5 Installation in wall housing

9. Electrical connection

9.1 Terminals

9.2 Power supply connection

9.3 Current inputs and outputs

9.4 Feedback potentiometer of the final control element

9.5 Relay outputs

10. Operation

10.1 Function

10.2 Controls and displays

10.3 Operating the controller

11. Fault finding

12. Maintenance

12.1 Replacing mains fuses (wall housing)

13. Spare parts

14. Disposal

15. Appendix

15.1 Measuring and control technology

15.2 Application examples of different output signals and final control elements

15.3 RS-485 serial interface

Warning Prior to installation, read these

installation and operating instructions. Installation and operation must comply

4 4

1. Symbols used in this document

5 5 6 6

6 6 6 6 7

8 9 9

11 13 14

34 58

with local regulations and accepted codes of good practice.

Warning These complete installation and

operating instructions are also available on www.grundfos.com.

Prior to installation, read these installation and operating instructions. Installation and operation must comply with local regulations and accepted codes of good practice.

Warning If these safety instructions are not

observed, it may result in personal injury.

If these safety instructions are not observed, it may result in malfunction or damage to the equipment.

Notes or instructions that make the job easier and ensure safe operation.

Page 3

2. Parameter settings

Controller settings

LED 1st level 2nd level 3rd level

Code

SP 1

SP 2

TN (s)

TV (s)

Measured value Code functions

--- % Code number Hysteresis Device number for RS-485

--- %

Switching point SP 1 Pulse frequency for SP 1 Transmits alarm via RS-485

Switching point SP 2 Pulse frequency for SP 2

Proportional band Xp Interpulse period

%sec

Reset time Tn Actuating time

sec sec

Derivative action time Tv Disturbance variable Range of current input 2

sec --- %

Position of feedback

potentiometer

x 100

pulses/

hour

x 100

pulses/

hour

English (GB)

01 (yes)

00 (no)

% at 0 (4) mA

% at 20 mA

--- %

TM03 7053 2108

Maximum dosing time Minimum pulse length

sec sec

TM03 7054 2108

Page 4

3. General information

Caution

342-5000-10000 S/N: 08/61557 230/240V 50/60Hz 8 VA, IP 65 Conex DIS-2Q 96732494P1108270861557

3 4

789

10 11

English (GB)

This manual contains all important information about the Conex DIS-2Q:

• technical data

• instructions for startup, use and maintenance

• safety information. If you need further information, or if problems occur

which are not described in details in this manual, please contact Grundfos.

4. Applications

The Conex DIS-2Q is a multipurpose device designed to carry out high-precision controls of disinfection parameters, pH-value and redox potential.

Conex DIS-2Q microprocessor-based controllers controls any measured variables using appropriate final control elements.

Warning Other applications than those

described in section 4. Applications are considered as non-approved and are not permissible.

Grundfos cannot be held liable for any damage resulting from incorrect use.

5. Safety instructions

5.1 Obligations of the owner

The owner of the plant is responsible for:

• compliance with country-specific safety regulations

• training of operating personnel

• provision of prescribed protective equipment

• implementation of regular maintenance.

5.2 Avoiding danger

Warning Installation and connection of the

device and the associated supplementary components must only be carried out by authorised personnel!

The local safety regulations must be observed!

Warning Switch off the power supply before

connecting the power supply cable and relay contacts!

Do not open the device! Maintenance and repair must only be

carried out by authorised personnel!

Select the mounting location so that the housing is not subject to mechanical loading.

Check that all settings are correct before starting the device!

6. Identification

6.1 Nameplate

Fig. 1 Nameplate, Conex DIS-2Q

Pos. Description

1 Model 2 Serial number 3 Voltage [V] 4 Frequency [Hz] 5 Product name 6 Product number 7 Country of origin 8 Year and week of production

9CE mark 10 Power consumption [VA] 11 Enclosure class

7. Technical data

7.1 Enclosure class

Control panel enclosure IP54 (front) Control panel enclosure

with optional front door Wall-mounted enclosure

(optional wall housing)

IP55

IP65

TM04 1218 1213

Page 5

7.2 General data

Note

Input power Approximately 8 VA Permissible

ambient

0 to 50 °C

temperature Permissible

storage temperature

Maximum relative humidity

-20 to +65 °C

90 % (non-condensing)

Weight 0.8 kg Enclosure Noryl, chemically resistant

Connections

Versions of power supply

Screw-plug terminals for cables up to 2.5 mm

• 230/240 V (50/60 Hz) (standard model)

• 115/120 V (50/60 Hz)

7.3 Electronic data and functions

7.3.1 Inputs and outputs

Continuous control output for SP 1:

Current output 1

Current output 2

Current input 1

Current input 2

Contact rating

• 0 (4) to 20 mA

• electrically isolated

• max. load 400 Ω.

Position of feedback potentiometer or continuous control output for SP 2

• 0 (4) to 20 mA

• electrically isolated

• max. load 400 Ω.

Measured value (actual value):

• 0 (4) to 20 mA

• electrically isolated

• load 50 Ω.

Disturbance variable/ command variable:

• 0 (4) to 20 mA

• electrically isolated

• load 50 Ω.

6 A / 250 V, max. 550 VA resistive load (with contact protection circuit) of relay outputs.

7.3.2 Controller functions

• Limit contact

• continuous controller

• two-position controller

Control functions

• three-position controller proportional controller

• ratio controller

• controller with disturbance variable feedforward.

• Proportional action

Control action

• integral action

• differential action.

7.3.3 Display ranges

Measured value (actual value) 0-100 % Disturbance variable 0-1,999 % Position of final control element 0-100 %

7.3.4 Adjustment ranges

Switching points 0-100 %

Control direction

Proportional band X Reset time T Derivative action time

Setting for current output 2

Can be set to upward or downward.

0-500 %

0-1,999 s

0-500 s

Ratio: -1,999 to +1,999 % Disturbance variable: 0-1,999 %

Hysteresis 0-50 % Interpulse period 1-99 s Minimum pulse width 0 - 9.9 s Pulse frequency

(selectable separately for each switching point)

0.1 - 72 (correlates with 10-7,200 pulses/hour)

Actuating time 1-240 s Time delay for alarm

signal

0-1,999 s (maximum dosing time)

English (GB)

The current inputs are electrically isolated from the current outputs, but are applied together to the same potential.

Page 6

7.4 RS-485 interface

Note

138

198

212,5

163

Note

Caution

+0.8

> 10.5

> 30.5

English (GB)

Data transfer rate 9,600 baud

•8 bits

Data format

Maximum cable length

Further data: See 15.3 RS-485 serial

interface.

• 1 start bit

• 1 stop bit

• no parity.

2-wire cable up to 1,200 m

7.5 Dimensions

Fig. 2 Control panel enclosure Conex DIS-2Q

8. Installation

8.1 Transport and storage

• Transport the device carefully.

• Do not drop the device!

• Store at a dry and cool location.

8.2 Unpacking

1. Check the device for damage.

2. Install the device as soon as possible after unpacking.

3. Do not install or connect damaged devices!

Retain packing material or dispose of it according to local regulations.

8.3 Installation requirements

• Dry room

• room temperature: 0-50 °C

• vibration-free location.

If you do not observe the installation requirements, the device may be damaged! The measurements may not be correct!

8.4 Installation in control panel

TM03 7056 1213

Fig. 3 Conex DIS-2Q in wall mounting housing

Fig. 4 Control panel enclosure Conex DIS-2Q

TM03 7055 1213

1. Make an opening 92 + 0.8 mm x 92 + 0.8 mm in the control panel.

2. Slip on the supplied gasket.

3. Insert the Conex DIS-2Q into the opening from the front.

Do not damage the gasket! The gasket must be fitted exactly!

1. Hook the clamps into the tightening cones on the sides at the top and bottom.

2. Secure the device from the rear using a screwdriver.

TM03 7057 1213

Page 7

8.5 Installation in wall housing

Caution

Note

The plastic housing is designed for the Conex DIS-2Q controller and is very easy to install and service.

– 300-115 (91835231) for one Conex DIS-2Q

controller

– 300-114 (95709720) for one Conex DIS-2Q

controller with RS-485 interface.

Technical data

Material ABS Enclosure class IP65 Complete with four cable glands

Warning Switch off the power supply before

installing!

1. Loosen the four fastening screws of the front panel.

2. Remove the front panel.

3. Insert the device from the front.

4. Hook the clamps into the tightening cones on the sides at the top and bottom.

5. Secure the device from the rear using a screwdriver.

6. When the front panel is mounted, plug the device onto the base plate.

7. Screw the front panel into the wall housing.

Enclosure class IP65 is only guaranteed if the transparent cover is closed and the appropriate cable glands or dummy caps are fitted.

9. Electrical connection

Warning Disconnect the mains voltage before

connecting the power supply cable and the relay contacts!

Observe the local safety regulations! Protect the cable connections and

plugs against corrosion and humidity.

Before connecting the power supply cable:

Check that the mains voltage specified on the type plate correlates with the local conditions!

An incorrect mains voltage may destroy the device!

To ensure electromagnetic compatibility (EMC):

Input and current output cables must be shielded.

Connect the shielding to the shield ground on one side.

Refer to the connection diagram! Input, current output and mains cables must be in separate cable channels.

Unused terminals remain open.

1. Connect the cables used to the terminals according to the Conex DIS-2Q terminal assignment.

English (GB)

Page 8

9.1 Terminals

1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

27 28 29 30 31 32

SP 1 SP 2 Alarm L1 N PE

H2O

mA 1

mA 2

A A

RS 485

mA 1

mA 2

A A

100 %

0 %

English (GB)

Fig. 5 Terminals Conex DIS-2Q

Pos. Description

External inputs

mA 1 Current input 1 (measured variable) mA 2 Current input 2 (disturbance variable or command variable)

Outputs

mA 1 Current output 1 (control signal for SP 1) mA 2 Current output 2 (position of feedback potentiometer or control signal for SP 2)

0 % / 100 % Feedback potentiometer

H2O Water sensor or potential free output for stopping control

Potential free relay outputs

SP 1 Set point 1 SP 2 Set point 2

Alarm Alarm

Power supply

PE Protective earth conductor

L1 Phase

N Neutral conductor

TM03 7058 1213

Page 9

9.1.1 Cable types and length

Caution

Cable Conductors

A 2 1,000 Single

B 3 1,000 Single

C 2 1,200 Single

Max. length

[m]

Screen

9.2 Power supply connection

1. Connect the plugs to the rear of the device.

2. Ensure correct orientation.

3. Connect the protective earth conductor (PE) to terminal 26.

4. Connect the neutral conductor (N) to terminal 25.

5. Connect phase (L1) to terminal 24.

6. Switch the device on and off by switching the power supply on and off accordingly.

The device itself does not feature a separate on/off switch.

9.3 Current inputs and outputs

9.3.1 Current input 1 (measured value)

The signal from a measuring amplifier or transmitter which determines the actual value of the measured variable is connected to current input 1.

Make sure that the polarity of the current input is correct!

Maximum load: 50

1. Connect the + conductor to terminal 2.

2. Connect the - conductor to terminal 1.

3. Connect the screen to earth (PE) at one end.

9.3.2 Current input 2 (disturbance variable or

command variable)

The signal from a measuring amplifier or transmitter which specifies the disturbance variable or command variable is connected to this current input.

Make sure that the polarity of the current input is correct!

Maximum load: 50

1. Connect the + conductor to terminal 4.

2. Connect the - conductor to terminal 5.

3. Connect the screen to earth (PE) at one end.

9.3.3 Current output 1 (measured value)

Current 1 output outputs the displayed measured value as an analog current (0 (4) to 20 mA).

Use of current signal:

• As input signal for another indicator.

Make sure that the polarity of the current output is correct!

Maximum load: 400

1. Connect the + conductor to terminal 6.

2. Connect the - conductor to terminal 7.

3. Connect the screen to earth (PE) at one end.

9.3.4 Current output 2 (position of feedback potentiometer)

Current output 2 outputs the position of the feedback potentiometer of the final control element as an analog current (0 (4) to 20 mA).

Use of current signal:

• As input signal for another indicator

Make sure that the polarity of the current output is correct!

Maximum load: 400

1. Connect the + conductor to terminal 13.

2. Connect the - conductor to terminal 14.

3. Connect the screen to earth (PE) at one end.

9.4 Feedback potentiometer of the final

control element

Minimum resistance of feedback potentiometer: 500

1. Connect terminal 9 to the "Start" connection

(0 %).

2. Connect terminal 10 to the "End" connection

(100 %).

3. Connect terminal 8 to the "Wiper" connection.

4. Connect the screen to earth (PE) at one end.

English (GB)

Page 10

9.5 Relay outputs

Note

Caution

ACDC

English (GB)

The connection of the relay outputs depends on the application and the final control elements used. Therefore consider the connections described below as guidelines.

See 15.2 Application examples of

different output signals and final control elements and the

documentation of the final control element.

With inductive loads (also relays and contactors), interference suppression is necessary. If this is not possible, protect the relay contacts using a suppressor circuit as described below.

• With AC voltage:

Current up to Capacitor C Resistor R

60 mA 10 nF, 275 V 390 Ω, 2 W 70 mA 47 nF, 275 V 22 Ω, 2 W 150 mA 100 nF, 275 V 47 Ω, 2 W

1.0 A 220 nF, 275 V 47 Ω, 2 W

• With DC voltage: Connect the free-wheeling diode in parallel to the relay or contactor.

Provide the relay outputs with a corresponding backup fuse!

Fig. 6 Suppressor circuit, DC/AC

9.5.1 SP 1 (as N/O contact)

1. Connect terminal 16 to the power supply terminal for L1 of the first final control element.

2. Connect terminal 17 to the power supply cable L1.

9.5.2 SP 2 (as N/O contact)

1. Connect terminal 19 to the power supply terminal for L1 of the first final control element.

2. Connect terminal 20 to the power supply cable L1.

9.5.3 Alarm relay

1. Connect terminal 21 to the power supply terminal for L1 of the alarm unit.

2. Connect terminal 22 to the power supply cable L1.

TM03 7209 4513

Page 11

10. Operation

Note

IDM

86 87

Conex DIA-1

Man

Cal

OKEsc

Alarm

Conex DIA-1

Man

Cal

OKEsc

Alarm

Conex DIS-2Q

10.1 Function

Conex DIS-2Q is a configurable, microprocessorbased controller for exact control of any measured variables. It can therefore be used for many tasks associated with measuring and control technology.

10.1.1 Application example

The controller is used e.g. in conjunction with other Grundfos products to control the dosing of chlorine and to correct the pH value.

This is only one of a multitude of possible applications.

See 15.2 Application examples of

different output signals and final control elements

English (GB)

Fig. 7 Application example

he complete measuring and control system comprises:

Pos. Description

1 Measuring cell AQC for chlorine and pH 2 Water sensor 3 Water sampler 4 Dirt trap 5 Electromagnetic flowmeter 6 Conex DIA measuring amplifier and controller for pH 7 Conex DIA measuring amplifier and controller for chlorine 8 Conex DIS-2Q controller 9 Gas dosing unit with servomotor

10 Dosing pump with servomotor

TM03 7061 1213

Page 12

10.1.2 Chlorine control principle

English (GB)

• The water is sampled and passed through the measuring cell.

• An electric current is generated in the measuring cell:

– In the µA range. – Proportional to the concentration of chlorine. – The measuring cell is controlled resistant to

interference by a local potentiostat.

• The Conex DIA measuring amplifier for chlorine:

– Amplifies the current. – Calculates the concentration using the

calibration parameters. – Indicates the concentration as a digital value. – Outputs this value as a signal of 0 (4) to 20 mA

via current output 1.

• The electromagnetic flowmeter: – Measures the water flow. – Outputs this value as a signal of 0 (4) to 20 mA,

• The Conex DIS-2Q controller: – Calculates the manipulated variable signal

from the measured concentration of chlorine and the signal from the electromagnetic flowmeter.

– Controls the servomotor of the gas dosing unit.

10.1.3 pH control principle

• The water is sampled and passed through the

measuring cell.

• The pH combination electrode generates a

potential.

• The Conex DIA measuring amplifier for pH: – Amplifies the potential. – Calculates the potential using the calibration

parameters. – Indicates the pH as a digital value. – Outputs this value as a signal of 0 (4) to 20 mA

via current output 1.

• The Conex DIS-2Q controller: – Calculates the manipulated variable signal

from the measured pH value.

– Controls the servomotor of the dosing pump.

Page 13

10.2 Controls and displays

123

+100 %

+75 %

+50 %

+25 %

0 %

-100 %

-75 %

-50 %

-25 %

0 %

Fig. 8 Front of Conex DIS-2Q

Pos. Description

Control elements

• LEDs to display the control deviation: The combination of illuminating and flashing LEDs indicates the magnitude of the deviation (See Fig. 9 Control

deviation (% of Xp))

• Option: Deviation of switching point 1 or 2.

• LED strip indicator:

• Indication of selected function.

10 • Alarm LED.

11 • Display.

Operator keys

"Up" key

• Manual activation of relay 1.

• LED indicating status of relay 1.

"Down" key

• Manual activation of relay 2.

• LED indicating status of relay 2.

If the keys "Up" and "Down are" pressed simultaneously, the alarm relay is activated.

Pos. Description

TM03 7062 1213

"Man" key

• Switch between automatic and manual mode.

• LED indicating automatic or manual mode.

– Illuminates in automatic mode.

"-" key

• Reduce value to be set.

"Save" key

• Save value to be set.

"Function" key

• Switch to next function.

"+" key

• Increase value to be set.

English (GB)

TM03 7063 1213

Fig. 9 Control deviation (% of X

)

Page 14

10.3 Operating the controller

Note

n+1

CODE

SP 1

SP 2

TN (s)

TV (s)

n+1 n+1

n+1

LED

1st level

2nd level

3rd level

Display measured

value (actual value)

in %.

Display and set code

functions.

Enter code number.

Display and set

hysteresis.

Display and set

device number for

RS-485.

Display and set

switching point 1.

Display and set pulse

frequency for

switching point 1.

Transmit alarms via

RS-485.

Display and set

switching point 2.

Display and set pulse

frequency for

switching point 2.

Display and set X

Display and set

interpulse period.

Display and set T

Display and set

actuating time.

Display and set T

Display manipulated

variable.

Set ratio for ratio

controller or

disturbance variable.

Display and adjust

position of feedback

potentiometer.

Display and set

maximum dosing

time.

Display and set

minimum pulse length.

English (GB)

This combination means: Keep the first key pressed and then briefly press the second key.

TM03 7064 1213

Page 15

10.3.1 Basic settings for the controller functions

Note

All parameters are factory-set to zero. A setting is always required prior to startup. See 10.3.6 Summary of code functions and 15.2 Application examples of different output

signals and final control elements

Parameter

SP 1

Pulse frequency for SP 1

SP 2 Pulse frequency

for SP 2 X

Limit contact controller

00a.r.

--- ---

0 a.r. a.r. a.r. a.r. a.r. 0 a.r. a.r. a.r. a.r. 0 0 a.r. a.r. a.r. a.r. 0

Twoposition interpulse

Required setpoint

Two-position pulse frequency

**)

Threeposition step

Continuous

Threeposition proportional

00 -

-- - - -

Hysteresis a.r. a.r. a.r. a.r. a.r. a.r. Interpulse period - a.r. - - - a.r. Actuating time 0 0 0 a.r. 0 0 Minimum pulse

width

Required code functions

"-": without function (no setting required).

**)

"a.r.": setting as required.

***)

Switch off with disturbance variable feedforward or ratio control as they require feedback of positioning

angle.

0 a.r. a.r. a.r. 1 sec a.r.

***)

6, 8, 10 None None

18 (without feedback of positioning angle)

None

3, 4, 8, 9, 10, 11, 17 ( with feedback of positioning angle)

The following applies to all types of controller:

• Use as ratio controller: – Switch on code function 22 in addition.

• Use as controller with disturbance value

feedforward:

– Switch on code function 14 in addition.

English (GB)

Page 16

10.3.2 Setting and displaying codes

XXX

086

Currently set code

Settings can now be modified.

XXX

086

Currently set code.

Set a number not equal to 086.

Device is protected.

XX.X

Measured value is displayed.

Note

XX.X

+ +

+++

n+1

Lowest function that is switched on.

Code number

+: Switch on function.

-: Switch off function.

+: Switch on function.

-: Switch off function.

+: Switch on function.

-: Switch off function.

English (GB)

The code function is used to protect the device against unintentional or unauthorised adjustment.

• If settings on the device are to be changed:

Fig. 10 Code setting

• If the device is to be protected against

unauthorised adjustment:

10.3.4 Switching the code functions on and off

TM03 7066 1213TM03 7067 1213TM03 7069 1213

Fig. 11 Code setting

10.3.3 Reading measured value (actual value)

Fig. 12 Actual value

TM03 7068 1213

Fig. 13 Switching code functions

The triangle in the display indicates the second level.

Page 17

10.3.5 Scanning the active code functions

......

XX.X

n+1

Only functions that are on are displayed.

Fig. 14 Scanning code numbers

10.3.6 Summary of code functions

No.

Control direction of switching point 1

Downward control SP 1 is the upper limit and the relay is

OFF

activated when the actual value exceeds the setpoint.

Upward control SP1 is the lower limit and the relay is

activated when the actual value falls below the setpoint.

Control direction of switching point 2

Upward control SP 2 is the lower limit and the relay is

OFF

activated when the actual value falls below the setpoint.

Downward control SP 2 is the upper limit and the relay is

activated when the actual value exceeds the setpoint.

Dosing time monitoring of switching point 1.

OFF

Dosing time monitoring of switching point 2.

OFF

Alarm when maximum dosing time is overrun.

No alarm when maximum dosing time is overrun.

Alarm when maximum dosing time is overrun.

No alarm when maximum dosing time is overrun.

No.

Alarm relay

Alarm relay is energised permanently

OFF

on alarm. Alarm relay is energised for

approximately 1 second (momentary

pulse), e.g. to trigger an alarm

English (GB)

recorder.

Proportional action control for switching point 1

TM03 7070 1213

Switching point 1 with proportional

OFF

action control. Switching point 1 without proportional

action control.

Proportional action control for switching point 2

Switching point 2 with proportional

OFF

action control. Switching point 2 without proportional

action control.

Integral action control for switching point 1

Switching point 1 with integral action

OFF

control. Switching point 1 without integral

action control.

Integral action control for switching point 2

control. Switching point 2 without integral

action control.

Switching point 2 with integral action

OFF

Differential action control for switching point 1

Switching point 1 with differential

OFF

action control. Switching point 1 without differential

action control.

Differential action control for switching point 2

action control. Switching point 2 without differential

action control.

Switching point 2 with differential

OFF

Signal of current input 1 (actual value)

OFF Signal 0 to 20 mA. ON Signal 4 to 20 mA. Signal of current output 2 (disturbance

variable or command variable)

OFF Signal 0 to 20 mA. ON Signal 4 to 20 mA.

Page 18

English (GB)

No.

Disturbance variable feedforward

Without disturbance variable

OFF

feedforward. ON With disturbance variable feedforward. Enabling of third operator level OFF Third operator level disabled.

Third operator level enabled (a colon ON

flashes in display) Inversion of disturbance variable OFF Disturbance variable not inverted. ON Disturbance variable inverted. Controller configuration

Device operates as two two-position OFF

controllers for SP 1 and SP 2 (if code

function 18 is also OFF).

Device operates as three-position ON

controller with feedback of positioning

angle. Controller configuration

Device operates as two two-position OFF

controllers for SP 1 and SP 2 (if code

function 17 is also OFF).

Device operates as three-position ON

controller without feedback of

positioning angle. Signal of current output 1 (control output for

SP 1) OFF Signal 0 to 20 mA. ON Signal 4 to 20 mA. Signal of current output 2 (position of

feedback potentiometer or control output for SP 2)

OFF Signal 0 to 20 mA. ON Signal 4 to 20 mA. Function of current output 2 OFF Position of feedback potentiometer. ON Control output for switching point 2.

No.

Controller configuration OFF Device operates as setpoint controller.

Device operates as ratio controller.

Setpoint is entered via current input 2.

Assignment of LEDs for display of control deviation

LEDs indicate deviation of actual value

OFF

from SP 1. LEDs indicate deviation of actual value

from SP 2.

Assignment of current input 2

0 (4) mA correspond to 0 %.

OFF

20 mA correspond to 100 %. When used as a ratio controller or

controller with disturbance variable

feedforward: Current input is assigned to a specific range (third operator level).

Page 19

10.3.7 Settings for switching point SP 1

31.0 %

XX.X %

Current setpoint

Set setpoint.

Setpoint is saved.

Note

n+1

31.0

Set setpoint.

Setpoint is saved.

Current setpoint

18.0

XX.X

Current setpoint

Set setpoint.

Setpoint is saved.

• Display and set switching point SP 1.

Fig. 15 Setting switching point 1

Setting control direction for switching point 1

• Select code function 1: – OFF: The relay is activated when the actual

value exceeds the setpoint.

– ON: The relay is activated when the actual

value falls below the setpoint.

Setting dosing time monitoring for switching point 1

• Select code function 3: – OFF: Alarm when maximum dosing time is

overrun.

– ON: No alarm when maximum dosing time is

overrun.

Selecting proportional action control for switching point 1

• Select code function 6: – OFF: Switching point 1 with integral action

control.

– ON: Switching point 1 without integral action

control.

Selecting integral action control for switching point 1

• Select code function 8: – OFF: Switching point 1 with integral action

control.

– ON: Switching point 1 without integral action

control.

Selecting differential action control for switching point 1

• Select code function 10: – OFF: Switching point 1 with differential action

control.

– ON: Switching point 1 without differential action

control.

Displaying and setting pulse frequency for switching point 1

Range of adjustment: 0.1 (correlates with 10 pulses/ hour) to 72 (correlates with 7,200 pulses/hour).

If 0 is set as the pulse frequency, the device operates as an interpulse controller.

TM03 7071 1213

Fig. 16 Setting setpoint for switching point 1

10.3.8 Settings for switching point 2

• Display and set switching point 2.

Fig. 17 Setting switching point 2

Setting control direction for switching point 2

• Select code function 2: – OFF: The relay is activated when the actual

value falls below the setpoint.

– ON: The relay is activated when the actual

value exceeds the setpoint.

Setting dosing time monitoring for switching point 2

• Select code function 4: – OFF: Alarm when maximum dosing time is

runover.

– ON: No alarm when maximum dosing time is

runover.

English (GB)

TM03 7072 1213TM03 7073 1213

Page 20

Selecting proportional action control for

Note

n+1

31.0

Current setpoint

Set setpoint.

Setpoint is saved.

Note

Hysteresis

SP 1

SP 2

Hysteresis

1/2 hysteresis

English (GB)

switching point 2

• Select code function 7: – OFF: Switching point 2 with proportional action

control.

– ON: Switching point 2 without proportional

action control.

Selecting integral action control for switching point 2

• Select code function 9: – OFF: Switching point 2 with integral action

control.

– ON: Switching point 2 without integral action

control.

Selecting differential action control for switching point 2

• Select code function 11: – OFF: Switching point 2 with differential action

control.

– ON: Switching point 2 without differential action

control.

10.3.9 Displaying and setting hysteresis

The hysteresis is set for both switching points together.

Range of adjustment: 0 to 50 %. Distribution of hysteresis:

Displaying and setting pulse frequency for switching point 2

Range of adjustment: 0.1 (correlates with 10 pulses/ hour) to 72 (correlates with 7,200 pulses/hour).

If 0 is the pulse frequency, the device operates as an interpulse controller.

Fig. 18 Setting setpoint for switching point 2

TM03 7074 1213

Fig. 19 Hysteresis

TM03 7075 2208

Page 21

Fig. 20 Setting hysteresis

Note

18.0 %

XXX %

086

n+1

Current setpoint

Set setpoint.

Setpoint is saved.

018 %

XXX %

Current setpoint

Set setpoint.

Setpoint is saved.

Note

134

XXX

Current setpoint

Set setpoint.

Setpoint is saved.

178

XXX

Current setpoint

Set setpoint.

Setpoint is saved.

10.3.10 Displaying and setting proportional band

Range of adjustment: 0 to 500 %.

If 0 is the proportional band, the device operates as a limit contact sensor.

10.3.11 Displaying and setting reset time

Range of adjustment: T

If the reset time is 0, the device operates as a proportional action controller (only P action).

This is not possible if the device is to be used as a three-position step

= 0 to 1,999 s.

controller.

TM03 7076 1213

Fig. 22 Setting reset time

10.3.12 Displaying and setting derivative action time

Range of adjustment: T

If the derivative action time is 0, the device operates as a proportional action controller (only P action) or as a

= 0 to 500 s.

PI controller.

English (GB)

TM03 7078 1213

Fig. 21 Setting proportional band

TM03 7077 1213

TM03 7079 1213

Fig. 23 Setting derivative action time

Page 22

10.3.13 Displaying and setting interpulse period

Note

042

n+1

Current setpoint

Set setpoint.

Setpoint is saved.

000

XXX

005

n+1

Current setpoint

Set setpoint.

Setpoint is saved.

0.5

X.X

008

n+1

Current setpoint

Set setpoint.

Setpoint is saved.

134

XXX

Current setpoint

Set setpoint.

Setpoint is saved.

English (GB)

Range of adjustment: 1 to 99 s.

If the pulse frequency is 0, the device operates as an interpulse controller.

Fig. 24 Setting interpulse period

10.3.14 Displaying and setting actuating time

Range of adjustment: 1 to 240 s.

If you enter an actuating time, the device operates as a three-position step controller.

10.3.15 Displaying and setting minimum pulse width

Range of adjustment: 0 to 9.9 s.

Fig. 26 Setting minimum pulse width

TM03 7080 1213

10.3.16 Settings for the alarm relay

Selecting operating mode for alarm relay

• Select code function 5:

– OFF: Alarm relay is energised permanently on

alarm.

– ON: Alarm relay is energised for approximately

1 second (momentary pulse, e.g. to trigger an alarm recorder).

Displaying and setting maximum dosing time

TM03 7082 1213TM03 7083 1213

Fig. 25 Setting actuating time

Fig. 27 Setting maximum dosing time

TM03 7081 1213

10.3.17 Set current input 1 (measured value)

Select signal

• Select code function 12:

– OFF: Signal 0 to 20 mA. – ON: Signal 4 to 20 mA.

Page 23

10.3.18 Set current input 2 (disturbance variable/

1:5.0

0:21

n+1

0:00

X:XX

Y:YY

Set start-of-scale setpoint (correlates with 0 (4) mA).

Save start-of-scale setpoint.

Save full-scale setpoint.

Set full-scale setpoint (correlates with 20 mA).

XX.X

The positioning angle is displayed

0:04 %

0:00 %

Lower setpoint is set to 0 %.

command variable)

Selecting signal

• Select code function 13: – OFF: Signal 0 to 20 mA. – ON: Signal 4 to 20 mA.

• Assign current input 2 to range 0-100 %. – Switch off code function 24: 0 (4) mA

corresponds to 0 % and 20 mA corresponds to 100 %.

Assigning current output 2 to a freely selectable range

• Switch on code functions 14, 24 and 15. – A colon flashes in the display.

10.3.19 Setting current output 1 (control output for SP 1)

Selecting signal

• Select code function 19:

– OFF: Signal 0 to 20 mA. – ON: Signal 4 to 20 mA.

10.3.20 Setting current output 2

Selecting function of current output 2

• Select code function 21:

– OFF: Position of feedback potentiometer. – ON: Control output for switching point 2.

Selecting signal

• Select code function 20:

– OFF: Signal 0 to 20 mA. – ON: Signal 4 to 20 mA.

10.3.21 Settings for the feedback potentiometer

Reading current positioning angle

Fig. 29 Reading the position angle

Adjusting feedback potentiometer

• Switch on code function 15.

– A colon flashes in the display.

• Close the servomotor completely using the

"Down" button.

English (GB)

TM03 7085 1213TM03 7086 1213

Fig. 28 Setting current input 1

• Switch off code function 15.

TM03 7084 1213

Fig. 30 Closing servomotor

Page 24

• Open the servomotor completely using the "Up"

1:00 %

0:98 %

Upper setpoint is set to 100 %.

0:0.0

0:86

n+1

:01

:XX

Number of the current device.

Set device number.

Save device number.

English (GB)

button.

Fig. 31 Opening the servomotor

• Switch off code function 15. – The colon no longer flashes in the display.

10.3.22 Settings for RS-485 interface

Displaying and setting device number

• Switch on code function 15. – A colon flashes in display.

TM03 7087 1213TM03 7088 1213

Fig. 32 Setting device number

• Switch off code function 15. – The colon no longer flashes in display.

Page 25

Switch transmission of alarms on and off

:00

0:0.0

n+1

:XX

:01

:00

Current status (00 or 01)

Alarms are not

transmitted.

Alarms are transmitted.

Save status.

Caution

X:XX

19:90

Current code

After approx. 30 s the device has the factory settings.

• Switch on code function 15. – A colon flashes in the display.

Fig. 33 Switching transmissions of alarms

• Switch off code function 15. – The colon no longer flashes in display.

10.3.23 Reset device to factory settings

Only use this function in case of emergency. All device settings are lost and must be re-entered!

Do not disconnect the device from the power supply during resetting!

• Switch on code function 15 – A colon flashes in the display.

English (GB)

TM03 7089 1213

Fig. 34 Resetting factory settings

TM03 7090 1213

Page 26

11. Fault finding

Caution

English (GB)

Fault Cause Remedy

1. No display after startup. a) No supply voltage. Connect supply voltage. b) Mains fuse is blown. Replace mains fuse.

2. Display indicates 0. a) Short-circuit in the cable between

3. Display indicates the full-scale

value.

4. Device cannot be set. a) Incorrect code set (the device is

5. Faulty control. a) Device is incorrectly

the measuring amplifier and controller.

b) Moisture in the connectors. a) Open-circuit in the cable between

the measuring amplifier and controller.

protected against adjustment).

parameterised.

Check connection cable and eliminate short-circuit. Remove the moisture.

Check connection cable and make connection.

Enter code 086.

Check settings and match to local conditions.

Reset analyser to factory settings.

12. Maintenance

The device is maintenance-free. The device must only be repaired in the factory and by authorised personnel.

12.1 Replacing mains fuses (wall housing)

• Mains fuse SI1: – Backup fuse for floating contacts – 315 mA slow-blow fuse – order No. 96726013.

• Mains fuse SI2: – Backup fuse for measuring amplifier – 4 A slow-blow fuse – order No. 96726014.

Warning Switch off mains voltage before

opening the housing!

1. Switch off the mains voltage.

2. Loosen the screws of the junction box cover.

3. Open the junction box.

4. Replace the blown fuse.

5. Close the junction box.

Do not damage the gasket! The gasket must fit exactly!

6. Tighten the screws of the cover.

7. Switch on the mains voltage.

13. Spare parts

Product number Component

96726013 315 mA slow-blow fuse 96726014 4 A slow-blow fuse

14. Disposal

This product or parts of it must be disposed of in an environmentally sound way:

1. Use the public or private waste collection service.

2. If this is not possible, contact the nearest Grundfos company or service workshop.

Page 27

15. Appendix

Input

element

Open loop

controller

Final control

element

Controlled

variable

Disturbance

variable

Control

factor

Manipulated

variable

Input

variable

15.1 Measuring and control technology

15.1.1 Terminology

Below you find explanations on the terminology used within the measuring and control technology. The examples are based on dosing of chlorine:

Controlled variable

The controlled variable is the concentration of chlorine.

Actual value of the controlled variable

The actual value of the controlled variable is the measured concentration of chlorine in the water.

Measuring element

The measuring element is the device which is used to measure the actual setpoint of the controlled variable. In this case, it is the measuring cell and the measuring amplifier.

Setpoint of controlled variable

The setpoint of the controlled variable is the required concentration of chlorine.

Disturbance variable

The disturbance variable is everything that can change the controlled variable e.g. impurities in the water.

Control deviation

The control deviation is the difference between the measured chlorine concentration and the required chlorine concentration.

Manipulated variable

The manipulated variable is the dosed quantity of chlorine.

Final control element

The final control element that changes the manipulated variable e.g. a chlorine gas dosing device or a dosing pump for chlorine bleaching leach.

Controller

The controller is the device which calculates the manipulated variable on the basis of the control deviation.

Dead time

The dead time is the time between the modification of the dosed quantity of chlorine and modification of the measured chlorine concentration.

15.1.2 Open-loop and closed-loop control

Open-loop control

In an open-loop control, the manipulated variable is modified independent of the result. An example is the dosing of chlorine proportional to the flow. A water meter as input element signals the flowing quantity of water as input variable to the controller. The dosed quantity of chlorine is set proportional to the water flow. The actual concentration of chlorine is not checked. An open-loop control is only meaningful, if all the disturbance variables are known and if they do not change simultaneously. The manipulated variable can be assigned accordingly. Automatic corrections cannot be made, if unforeseen changes occur.

English (GB)

Fig. 35 Open-loop control

TM03 7091 1713

Page 28

Closed-loop control

Closed-loop

controller

Final control

element

Controlled

variable

Disturbance

variable

Control

factor

Manipulated

variable

Setpoint

Control

process

Measuring

element

Actual value of

Controlled variable

English (GB)

In a closed-loop control, the controlled variable is measured and the result, the actual setpoint, is sent to the controller. The actual value is compared with the setpoint. Then the manipulated variable is calculated in order to bring the controlled variable back to the setpoint. Opposite to the open-loop control, a check is constantly performed to see whether the required result occurs. Any deviations will be corrected. A closed-loop control is meaningful if the disturbance variables are unknown or subject to large variation. The closed-loop control ensures that the setpoint is retained.

Fig. 36 Closed-loop control

TM03 7092 1713

Page 29

15.1.3 Design and function of a controller

...

10 11 12

The controller calculates the manipulated variable for the setpoint and the actual value. Based on the setpoint and the actual value, the controller generates an output signal which the corresponding final control element processes.

Fig. 37 Function of a controller

Pos. Description

1 Setpoint 2 Actual value 3 Deviation 4 Manipulated variable 5 Parameter settings 6 Two-position 7 Three-position 8 Continuous 9 Output signal

10 Setpoint/actual value comparator

11 Control function 12 Output module 13 Controller

The control function calculates the manipulated variable on the basis of the deviation. The various control actions and their corresponding parameters, define the dependance between the manipulated variable and the deviation.

English (GB)

TM03 7093 1613

Page 30

15.1.4 Control actions and parameters

Manipulated variable

Deviation

Time

Note

English (GB)

Step-forced response is theoretically used to characterise the various control actions. Step-forced response refers to the response of the controlled variable calculated by the controller if the deviation suddenly assumes or retains a specific value.

The characteristic parameters of the various control actions depend on the step-forced response. In the diagrams below, the deviation occurs at the time to and then remains constant.

The diagrams below are essential for defining how the parameters are used in a theoretical way as they assume that the controlled variable does not react to all attempts to control it.

Fig. 38 Proportional action

With a controller with a pure P action, a certain steady-state deviation always remains since the manipulated variable becomes smaller and smaller as the actual value approaches the setpoint. Once the setpoint has been reached, the manipulated variable is also equal to zero.

As an example, the concentration of chlorine in the water corresponds e.g. exactly to the setpoint, but a small supply of chlorine is always necessary to permanently retain the setpoint. This cannot be achieved using the P controller since this outputs a manipulated variable of zero in this case.

Integral action, proportional-plus-integral action

With an integral action (I) controller, the manipulated value increases linearly with the deviation. The magnitude of the deviation linearly influences the positioning speed. With the P controller, the magnitude of the deviation linearly influences the manipulated variable.

The upper limit is only limited by the maximum of the final control element. Thus step-forced response of the upper limit is a straight line increasing from zero which changes to a horizontal line at the maximum of the final control element.

Proportional action

With a proportional action (P) controller, the manipulated variable is proportional to the deviation. The range within which this applies is referred to as the proportional band X is limited e.g. by the maximum of the final control element, but can also be set below this. The lower limit is defined by the smallest signal which the controller can recognise as a deviation. The two diagrams below show this relationship. The diagram on the right side illustrates the step-forced response. See fig. 38.

Therefore a sufficiently large manipulated variable is still generated close to the setpoint and there is no steady-state deviation. In the case of very high deviations, the manipulated variable may be too small at the beginning and thus the controller is too slow.

For that reason a PI controller is often used in practice. A PI controller is a combination of a P and I controller.

When a deviation occurs, a manipulated variable corresponding to X increases with time. The reset time Tn can be obtained from the corresponding diagram. The reset time defines the slope of the straight line and thus the speed with which the control signal increases. The longer the reset time, the slower the control signal increases with time.

= ∞ , a pure P action is present.

If T

In the setting of Conex DIS-2Q, Tn = ∞ is often printed as T reasons.

. The upper limit of this band

is immediately generated which

= 0 for technical

TM03 7094 1613

Page 31

English (GB)

max.

Manipulated variable

Time

action

t0T

max.

Tv /4

PID

Manipulated variable

Time

action

Manipulated variable

Time

Fig. 39 Integral action

Differential action, PID action

With a differential action (D) controller, a deviation initially generates a very high manipulated variable which rapidly decays. In theory, the step-forced response is an infinitely high "needle function" since it only reacts to a change in the deviation. In reality, the magnitude of the deflection depends on the magnitude of the change in deviation. The D controller is only used together with P and I controllers e.g. as a PD or PID controller. The advantage is that fast adjustments are possible as the controlled variable changes rapidly e.g. in the case of faults. The characteristic of the D controller is the derivative action time T

TM03 7095 1613

Fig. 40 Differential action

15.1.5 Adaptation and error correction

When adapting the controller to the controlled system, use the basic parameter settings gained from experience and the response of the controlled variable which you observed when starting up the control loop.

• The controlled variable rapidly reaches the setpoint without overshoots:

– In this case the controller is optimally set.

Fig. 41 Optimally set controller

• The controlled variable oscillates around the setpoint:

– The reset time T

is too small.

TM03 7096 1613TM03 7097 1613

Page 32

English (GB)

Manipulated variable

Time

Manipulated variable

Time

Manipulated variable

Time

Manipulated variable

Time

Fig. 42 T

• The controlled variable reaches the setpoint very slowly:

– The reset time T

Fig. 43 T

• The controlled variable exceeds the setpoint and then reaches it very slowly:

– The proportional band X

Fig. 44 X

• The controlled variable reaches the setpoint very slowly or with a jump:

– The proportional band X

too small

too large

too small

is too large.

is too small.

is too large.

TM03 7098 1613TM03 7099 1613TM03 7100 1613

Fig. 45 X

too large

15.1.6 Control modes for dosing applications

Proportional control

The purpose is to chlorinate a flow of water uniformly.

Fig. 46 Chlorine dosing

Pos. Description

1 Water flow 2 Quantity of dosed chlorine

If the water quality is constant, it is not necessary to check the result as a specific quantity of dosed chlorine results in a specific excess of chlorine. Therefore this is an open-loop control. If the flow of water is constant, an open-loop control is unnecessary as the gas dosing unit is simply set to the required dosing quantity.

However, this is not possible if the flow of water varies. Then you must control the dosed quantity according to the amount of flowing water:

TM03 7101 1613TM03 7102 1613

Page 33

Fig. 47 Proportional control

M CODE SP 1

SP 2

TN (s) s

CONEX DIS-2Q

IDM

TV (s)

Open-loop controller

Dosing unit with servomotor

Flowmeter

Conex DIA-1

OKEs

Alar

Measuring amplifier and closed-loop controller

Dosing unit with servomotor

Swimming pool

Measuring

cell

Conex DIA-1

Ma n Ca l

OKEs

Alar

M CODE SP 1

SP 2

TN (s) s

CONEX DIS-2Q

TV (s)

IDM

Flowmeter

Dosing unit with servomotor

Measuring

cell

Closed-loop controller

Measuring amplifier

Conex DIA-1

Man

Cal

Esc

Alarm

Water to be neutralised.

pH electrode and temperature sensor

Measuring amplifier

and controller

Dosing pump for leach

Dosing pump for acid

Setpoint control

The purpose is e.g. to keep the excess chlorine in the swimming pool at a constant value, the setpoint. To do this, constantly measure the excess chlorine in the water. The chlorination of the supplied water is influenced accordingly.

Fig. 48 Setpoint control

Proportional control with disturbance variable feedforward

The purpose is to chlorinate a flow of water uniformly. A purely proportional control is not possible if the water quality varies greatly since the same dosing quantities do not necessarily result in a uniform excess of chlorine. Therefore the concentration of chlorine is also measured.

A controller processes the two signals into the manipulated variable:

• The flowing quantity of water which results in a specific quantity of dosed chlorine.

• The measured concentration of chlorine with which the quantity of dosed chlorine proportional to the flow is varied upwards or downwards.

English (GB)

TM03 7103 1613TM03 7104 1613

TM03 7105 1613TM03 7106 1613

Fig. 49 Proportional control with disturbance

Dual setpoint control with acid and leach

The purpose is to retain the pH value in the water at a specific value. If the pH value increases or decreases as a result of the disturbance variables, acid or leach must be dosed depending on the situation. Therefore you must be able to control the two dosing pumps alternately.

Fig. 50 Dual setpoint control

Page 34

15.2 Application examples of different

Note

SP 1

Off

{

Hysteresis

Chlorine concentration

Switching status of the pump.

time

English (GB)

output signals and final control elements

The purpose of the output module of the controller is to convert the calculated manipulated variable into a signal which can be processed by a corresponding final control element. If you use a dosing pump with a current input, it must be controlled differently from e.g. a gas dosing unit with servomotor.

As the values of the different parameters depend on the type of control element, you must consider different parameters for each of these output signals.

Always adapt the parameter settings of the following examples to the local conditions!

15.2.1 Limit contact controller

Application

• Upward control direction of chlorine concentration using chlorine bleaching leach.

• Control of dosing pump by power supply.

Description

• The actual value of the required chlorine concentration falls below the setpoint:

– Dosing pump for chlorine bleaching leach is

switched on.

• The actual value of the required chlorine concentration exceeds the setpoint:

– Dosing pump for chlorine bleaching leach is

switched off.

• The hysteresis

– Widens the setpoint into a band. – Prevents unsteady switching on and off of

dosing pump.

Fig. 51 Limit contact controller

Parameter settings

SP 1 Required chlorine concentration, e.g. 55 %. Pulse frequency for SP 1 0 SP 2 -

Pulse frequency for SP 2 X

Hysteresis e.g. 1 % Interpulse period -

0 0 0

Actuating time 0 Minimum pulse width 0 Required code functions 1, 6, 8, 10 Other code functions As required

"-": without function (no setting required)

TM03 7107 1613

Page 35

Connection diagram

15 16 17 18 19 20 21 22 23 24 25 26

L1 N PE

Fig. 52 Connection diagram for dosing pump

Pos. Description

1 Free relay outputs 2 Dosing pump 3 Power supply

English (GB)

TM03 7108 1613

Page 36

15.2.2 Two-position interpulse controller for chlorine

Off

{

SP 1

Chlorine

concentration

Deviation

from setpoint

Interpulse period

Switching status of the pump.

English (GB)

Application

• Upward control direction of the chlorine concentration using the chlorine bleaching.

• Control of dosing pump by power supply.

Description

• The actual value of the chlorine concentration falls below the setpoint:

Fig. 53 Two-position interpulse controller for chlorine

Parameter settings

SP 1 Required chlorine concentration, e.g. 38 %. Pulse frequency for SP 1 0 SP 2 Pulse frequency for SP 2 -

Hysteresis e.g. 1 % Interpulse period e.g. 10 sec Actuating time 0 Minimum pulse width ≥ 0.3 sec Required code functions 1 Other code functions As required

"-": without function (no setting required)

e.g. 100 %

• Higher setting results in smaller control steps.

• Lower setting results in larger control steps. e.g. 300 sec

• Higher setting results in slower control.

• Lower setting results in faster control. 0

– Dosing pump for chlorine bleaching leach is

switched on for brief periods.

• The measured value deviates from the setpoint: – Dosing pump runs longer during the interpulse

period.

– With a large deviation, the pump runs

continuously.

TM03 7109 1613

Page 37

Connection diagram

15 16 17 18 19 20 21 22 23 24 25 26

L1 N PE

Fig. 54 Connection diagram for dosing pump

Pos. Description

1 Free relay outputs 2 Dosing pump 3 Power supply

English (GB)

TM03 7108 1613

Page 38

15.2.3 Two-position interpulse controller for pH

Off

{

SP 1

Deviation from

setpoint

Interpulse period

Switching status of the pump.

pH value

English (GB)

Application

• Downward control direction of pH value using acid.

• Control of the dosing pump by power supply.

Description

• The actual value of the required pH value exceeds the setpoint:

Fig. 55 Two-position interpulse controller for pH

Parameter settings

SP 1 Required pH value, e.g. 50 % (correlates with pH 7.00). Pulse frequency for SP 1 0 SP 2 Pulse frequency for SP 2 -

Hysteresis e.g. 1 % Interpulse period e.g. 10 sec Actuating time 0 Minimum pulse width ≥ 0.3 sec Required code functions None Other code functions As required

"-": without function (no setting required)

According to local conditions, e.g. 100 %

• Higher setting results in smaller control steps.

• Lower setting results in larger control steps. According to local conditions, e.g. 300 sec

• Higher setting results in slower control.

• Lower setting results in faster control. 0

– Dosing pump for acid is switched on for brief

periods.

• The measured value deviates from the setpoint: – Dosing pump runs longer during the interpulse

period.

– With a large deviation, the pump runs

continuously.

TM03 7110 1613

Page 39

Note

With upward control direction using

15 16 17 18 19 20 21 22 23 24 25 26

L1 N PE

leach: Switch on code function 1.

Connection diagram

Fig. 56 Connection diagram for dosing pump

Pos. Description

1 Free relay outputs 2 Dosing pump 3 Power supply

English (GB)

TM03 7108 1613

Page 40

15.2.4 Two-position pulse frequency controller for chlorine

Off

SP 1

Chlorine

concentration

Deviation from

setpoint

Switching status of the pump

(individual dosing strokes).

English (GB)

Application

• Upward control direction of chlorine concentration using chlorine bleaching leach.

• Control of dosing pump via contact input.

Description

• The actual value of the required chlorine concentration falls below the setpoint:

– Dosing pump for chlorine bleaching leach

carries out individually controlled dosing strokes.

• The measured value deviates from the setpoint: – Frequency of dosing strokes decreases. – If the deviation is large, the pump runs

continuously with maximum frequency of dosing strokes.

Fig. 57 Two-position pulse frequency controller for chlorine

Parameter settings

SP 1 Required chlorine concentration, e.g. 38 %.

Pulse frequency for SP 1

SP 2 -

72 (maximum value (correlates with 7,200 strokes per hour). The dosing capacity of the pump is then fully utilised.

Pulse frequency for SP 2 -

e.g. 100 %

• Higher setting results in smaller control steps.

• Lower setting results in larger control steps. e.g. 300 sec

• Higher setting results in slower control.

• Lower setting results in faster control.

0 Hysteresis e.g. 1 % Interpulse period Actuating time 0 Minimum pulse width ≥ 0.3 sec Required code functions 1 Other code functions As required

"-": without function (no setting required)

TM03 7111 1613

Page 41

Connection diagram

15 16 17 18 19 20 21 22 23 24 25 26

L1 N PE

Fig. 58 Connection diagram for dosing pump,

Pos. Description

contact input

1 Free relay outputs 2 Dosing pump 3 Power supply 4 Contact input

English (GB)

TM03 7112 1613

Page 42

15.2.5 Two-position pulse frequency controller for pH

Off

SP 1

pH value

Deviation from

setpoint

Switching status of the pump

(individual dosing strokes).

English (GB)

Application

• Downward control direction of pH value using acid.

• Control of dosing pump via contact input.

Description

• The actual required pH value exceeds the setpoint:

– Dosing pump for acid carries out individually

controlled dosing strokes.

• The measured value deviates from the setpoint: – Frequency of dosing strokes increases. – If the deviation is large, the pump runs

continuously with maximum frequency of dosing strokes.

Fig. 59 Two-position pulse frequency controller for pH

Parameter settings

SP 1 Required pH value, e.g. 50 % (correlates with pH 7.00).

Pulse frequency for SP 1

SP 2 -

72 (maximum value (correlates with 7,200 strokes per hour). The dosing capacity of the pump is then fully utilised.

Pulse frequency for SP 2 -

According to local conditions, e.g. 100 %

Hysteresis e.g. 1 % Interpulse period Actuating time 0

• Higher setting results in smaller control steps.

• Lower setting results in larger control steps. According to local conditions, e.g. 300 sec

• Higher setting results in slower control.

• Lower setting results in faster control. 0

Minimum pulse width ≥ 0.3 sec Required code functions None Other code functions As required

"-": without function (no setting required)

TM03 7113 1613

Page 43

Note

With downward control direction using

15 16 17 18 19 20 21 22 23 24 25 26

L1 N PE

leach: Switch on code function 1.

Connection diagram

Fig. 60 Connection diagram for dosing pump,

contact input

Pos. Description

1 Free relay outputs 2 Dosing pump 3 Power supply 4 Contact input

English (GB)

TM03 7112 1613

Page 44

15.2.6 Dual two-position pulse frequency controller

Off

SP 1 SP 2

pH value

Deviation from

setpoint

Switching status of the acid pump

(individual dosing strokes).

Switching status of the leach pump

(individual dosing strokes).

English (GB)

Application

• Setpoint control of pH value using acid and leach.

• Control of dosing pumps via contact input.

Description

• Set a pH value of 7.00.

• Set switching point 1 slightly above this value.

• Set switching point 2 slightly below this value.

Never set the two switching points to the same value; in this case acid and leach are constantly and alternately dosed. This does not improve the result, it merely leads to an unnecessarily high consumption of chemicals.

• The actual value of switching point 1 exceeds the setpoint:

– Dosing pump for acid carries out individually

controlled dosing strokes.

• The actual value of switching point 2 falls below the setpoint:

– Dosing pump for leach carries out individually

controlled dosing strokes.

• The measured value deviates from the respective switching point:

– Frequency of dosing strokes of the respective

pump increases

– If the deviation is large, the respective pump

runs continuously with maximum frequency of dosing strokes.

Fig. 61 Dual two-position pulse frequency controller

TM03 7114 1613

Page 45

Parameter settings

15 16 17 18 19 20 21 22 23 24 25 26

L1 N PE

Required pH value: e.g. pH 7.00.

SP 1 Above the required pH value, e.g. 52 % (correlates with pH 7.28).

Pulse frequency for SP 1

72 (maximum value (correlates with 7,200 strokes per hour). The dosing capacity of the pump is then fully utilised.

SP 2 Below the required pH value, e.g. 48 % (correlates with pH 6.72).

Pulse frequency for SP 2

72 (maximum value (correlates with 7,200 strokes per hour). The dosing capacity of the pump is then fully utilised.

According to local conditions, e.g. 100 %

• Higher setting results in smaller control steps.

• Lower setting results in larger control steps. According to local conditions, e.g. 300 sec

• Higher setting results in slower control.

• Lower setting results in faster control.

0 Hysteresis e.g. 1 % Interpulse period Actuating time 0 Minimum pulse width ≥ 0.3 sec Required code functions None Other code functions As required

Connection diagram

Pos. Description

1 Free relay outputs 2a Dosing pump for leach 2b Dosing pump for acid

3 Power supply

4 Contact input

English (GB)

Fig. 62 Connection diagram for dosing pump,

contact input

TM03 7115 1613

Page 46

15.2.7 Dual two-position interpulse controller

Off

{

Off

{

Off

SP 1 SP 2

pH value

Deviation from

setpoint

Switching status of the acid pump.

Switching status of the leach pump.

Interpulse period

English (GB)

Application

• Setpoint control of pH value using acid and leach.

• Control of dosing pumps by power supply.

Description

• Set a pH value of 7.00.

• Set switching point 1 slightly above this value.

• Set switching point 2 slightly below this value.

• The actual value of switching point 1 exceeds the setpoint:

– Dosing pump for acid is switched on for brief

periods.

• The actual value of switching point 2 falls below the setpoint:

– Dosing pump for leach is switched on for brief

periods.

• The measured value deviates from the respective switching point:

– The respective dosing pump runs longer during

the interpulse period.

– If the deviation is large, the respective pump

runs continuously.

Fig. 63 Dual two-position interpulse controller

TM03 7116 1613

Page 47

Parameter settings

15 16 17 18 19 20 21 22 23 24 25 26

L1 N PE

Required pH value, e.g. pH 7.00.

SP 1 Above the required pH value, e.g. 52 % (correlates with pH 7.28). Pulse frequency for SP 1 0 SP 2 Below the required pH value, e.g. 48 % (correlates with pH 6.72). Pulse frequency for SP 2 0

According to local conditions, e.g. 100 %

• Higher setting results in smaller control steps.

• Lower setting results in larger control steps. According to local conditions, e.g. 300 sec

• Higher setting results in slower control.

• Lower setting results in faster control.

0 Hysteresis e.g. 1 % Interpulse period e.g. 10 sec Actuating time 0 Minimum pulse width ≥ 0.3 sec Required code functions None Other code functions As required

Connection diagram

English (GB)

Fig. 64 Connection diagram for dosing pump

Pos. Description

1 Free relay outputs 2a Dosing pump for leach 2b Dosing pump for acid

3 Power supply

TM03 7117 1613

Page 48

15.2.8 Three-position step controller

Min. Max.

SP 1

Chlorine

concentration

Deviation from setpoint

Position of the servomotor

English (GB)

Application

• Upward control direction of chlorine concentration using chlorine bleaching leach or chlorine gas.

• Control of dosing pump or gas dosing unit using servomotor.

Description

• The actual value of the required chlorine concentration exceeds the setpoint:

– Set the servomotor of the dosing pump or

chlorine gas dosing unit to minimum.

• The actual value of the required chlorine concentration falls below the setpoint:

– With reduced chlorine concentration:

The servomotor moves in direction of the increased dosing capacity.

– With increased chlorine concentration:

The servomotor moves in direction of the decreased dosing capacity.

Fig. 65 Three-position step controller

Parameter settings

SP 1 Required chlorine concentration, e.g. 38 %. Pulse frequency for SP 1 0 SP 2 -

Pulse frequency for SP 2 -

e.g. 100 %

• Higher setting results in smaller control steps.

• Lower setting results in larger control steps. e.g. 300 sec

Hysteresis e.g. 1 %

• Higher setting results in slower control.

• Lower setting results in faster control. 0

Interpulse period -

Actuating time

Runtime of servomotor between minimum and maximum

capacity (0-100 % dosing capacity), e.g. 90 sec. Minimum pulse width ≥ 0.3 sec Required code functions 1, 18 Other code functions As required

"-": without function (no setting required)

TM03 7118 1613

Page 49

Connection diagram

15 16 17 18 19 20 21 22 23 24 25 26

L1 N PE

1 ~

2N 1S1PE

Fig. 66 Connection diagram for servomotor

Pos. Description

1 Free relay outputs 2Servomotor 3 Power supply 4 Open 5 Close

English (GB)

TM04 1191 1613

Page 50

15.2.9 Three-position proportional controller

Min. Max.

Water flow

Position of the servomotor

English (GB)

Application

• Open-loop control of dosed chlorine proportional to the flow.

Description

A varying flow of water is to be chlorinated by a uniform amount. The electromagnetic flowmeter measures the flow quantity and passes it on to the controller.

Fig. 67 Three-position proportional controller

Parameter settings

SP 1 0 Pulse frequency for SP 1 -

SP 2 Pulse frequency for SP 2 -

e.g. 100 % (transmission ratio 1:1):

• > 100 % (transmission ratio 1: > 1).

• < 100 % (transmission ratio 1: < 1). 0

0 Hysteresis e.g. 1 % Interpulse period e.g. 2 sec Actuating time 0 Minimum pulse width ≥ 0.3 sec Required code functions 3, 4, 8, 9, 10, 11, 17 Other code functions As required

"-": without function (no setting required)

• When the flow of water increases: – The servomotor moves in direction of the

increased dosing capacity.

• When the flow of water decreases: – The servomotor moves in direction of the

decreased dosing capacity.

TM04 1192 1613

Page 51

Connection diagram

15 16 17 18 19 20 21 22 23 24 25 26

L1 N PE

1 ~

12345 67891011121314

(100 %)

(0 %)

IDM

2N 1S1PE

Fig. 68 Connection diagram for feedback potentiometer, servomotor

Pos. Description

1 Free relay outputs 2Servomotor 3 Power supply 4 Open 5 Close 6 Feedback potentiometer

English (GB)

TM04 1193 1613

Page 52

15.2.10 Three-position step controller with disturbance variable feedforward

English (GB)

Application

• Open-loop control of dosed chlorine proportional to the flow and closed-loop control dependent on the measured value.

• Control of dosing pump or gas dosing unit using servomotor.

Description

A varying flow of water is to be chlorinated by a uniform amount. The electromagnetic flowmeter measures the flow quantity and passes it on to the controller. The result (the chlorine concentration) is also measured and the dosed quantity controlled accordingly.

• When the flow of water increases: – The servomotor moves in the direction of the

increased dosing capacity.

• When the flow of water decreases: – The servomotor moves in the direction of the

decreased dosing capacity.

• The closed-loop control is dependent on the

measured value:

– When the chlorine concentration decreases,

the servomotor moves additionally in the direction of the increased dosing capacity.

– When the chlorine concentration increases, the

servomotor moves additionally in the direction of decreased dosing capacity.

Parameter settings

SP 1 Required chlorine concentration, e.g. 55 %. Pulse frequency for SP 1 -

SP 2 Pulse frequency for SP 2 -

e.g. 100 % (transmission ratio 1:1):

• > 100 % (transmission ratio 1: > 1)

• < 100 % (transmission ratio 1: < 1) > 0

0 Hysteresis e.g. 1 % Interpulse period e.g. 2 sec Actuating time 0 Minimum pulse width ≥ 0.3 sec Required code functions 1, 3, 4, 10, 11, 14, 17 Other code functions As required

"-": without function (no setting required)

Page 53

Connection diagram

15 16 17 18 19 20 21 22 23 24 25 26

L1 N PE

1 ~

12345 67891011121314

(100 %)

(0 %)

IDM

2N 1 PES1

Fig. 69 Connection diagram for feedback potentiometer, servomotor, measuring amplifier

Pos. Description

1 Free relay outputs 2Servomotor 3 Power supply 4 Open 5 Close 6 Feedback potentiometer 7 Measuring amplifier

English (GB)

TM04 1194 1613

Page 54

15.2.11 Continuous controller

Off

SP 1

Chlorine

concentration

Deviation from

setpoint

Switching status of pump

(individual dosing stokes).

Current signal

20 mA

0 (4) mA

English (GB)

Application

• Upward control direction of chlorine concentration using chlorine bleaching leach.

• Control of dosing pump via the current input.

Description

• The actual value of the required chlorine concentration falls below the setpoint:

Fig. 70 Continuous controller

Parameter settings

– The continuous current signal is generated

proportional to the deviation from the setpoint.

• Response of the dosing pump with increasing deviation from the setpoint:

– The frequency of dosing strokes increases. – If the deviation is large, the pump runs

continuously with maximum frequency of dosing strokes.

TM04 1195 1613

SP 1 Required chlorine concentration, e.g. 38 %. Pulse frequency for SP 1 0 SP 2 -

Pulse frequency for SP 2 -

Hysteresis Interpulse period -

e.g. 100 %

• Higher setting results in smaller control steps.

• Lower setting results in larger control steps. e.g. 300 sec

• Higher setting results in slower control.

• Lower setting results in faster control. 0

Actuating time 0

Minimum pulse width

1 sec - so that the relays which are not required are not activated

unnecessarily. Required code functions 1 Other code functions As required

"-": without function (no setting required)

Page 55

Connection diagram

24 25 26

L1 N PE

1 2 3 4 5 6 7 8 9 10 11121314

1 3

15 16 17 18 19 20 21 22 23

Fig. 71 Connection diagram for dosing pump, current input

Pos. Description

1 Free relay outputs 2 Dosing pump 3 Power supply 4 Current output

English (GB)

TM04 1196 1613

Page 56

15.2.12 Continuous controller with disturbance variable feedforward

English (GB)

Application

• Open-loop control of dosed chlorine proportional to the flow and closed-loop control dependent on the measured value.

• Control of dosing pump or gas dosing unit via the current input.

Description

• When the flow of water increases: – The current signal increases.

• When the flow of water decreases: – The current signal decreases.

• The closed-loop control is dependent on the

measured value:

– When the chlorine concentration decreases,

the current signal is additionally increased.

– When the chlorine concentration increases, the

current signal is additionally decreased.

accordingly.

Parameter settings

SP 1 Required chlorine concentration, e.g. 38 %. Pulse frequency for SP 1 0 SP 2 -

Pulse frequency for SP 2 -

e.g. 100 % (transmission ratio 1:1)

• > 100 % (transmission ratio 1: > 1)

• < 100 % (transmission ratio 1: < 1) e.g. 300 sec

• Higher setting results in slower control.

• Lower setting results in faster control.

0 Hysteresis Interpulse period Actuating time 0

Minimum pulse width

1 sec - so that the relays required here do not activate

unnecessarily. Required code functions 1, 3, 4, 10, 11, 14 Other code functions As required

"-": without function (no setting required)

Page 57

Connection diagram

24 25 26

L1 N PE

1 2 3 4 5 6 7 8 9 10 11121314

1 3

15 16 17 18 19 20 21 22 23

IDM

Fig. 72 Connection diagram for dosing pump, current input, measuring amplifier

Pos. Description

1 Free relay outputs 2 Dosing pump 3 Power supply 4 Current input 5 Measuring amplifier

English (GB)

TM04 1197 1613

Page 58

15.3 RS-485 serial interface

English (GB)

15.3.1 Hardware

The data line connecting the measurement and control devices by means of the RS-485 interface must be carried out in bus topology (not star topology).

Use two-core cable with a cross section of at least

0.5 mm The maximum length of the lines is 1,000 m.

Connecting the interface

• Connector pin assignment (9-pole sub-Dconnector)

– pin 1: shielding (necessary for line lengths >

100 m. Only to be connected at one side) – pin 3: data +. – pin 8: data -.

The bus function of the device must be adjusted by jumpers (in the plug).

• If the device is used as MASTER (device number 32), carry out the following adjustment:

– jumper 4-7

• If the device is used as SLAVE (device number 1-31), carry out the following adjustment:

– no jumpers

• If the device is used as last SLAVE (device number 1-31), carry out the following adjustment:

– jumper 4-7

Data transfer format

– 9,600 baud – 1 start bit – 1 stop bit – 8 data bits – no parity

Software

Data transmission consists of several parts:

– the function request – the information – the end of the data transmission.

The data transmission starts with calling the demanded device. The devices connected to the bus are identified by the device number which must be selected at the single devices.

The function request for starting a transmission is "line feed" (LF). Then the corresponding device number is transmitted. After that, "carriage return" (CR) is transmitted, which always indicates the end of a function request or data transmission.

The called device answers with the device code (see device codes). The device code contains the type of the device and the operating status.

If the operation mode is "automatic" and no alarm indication is present, a Conex DIS-2Q controller answers with code "54". If an indication is present, the code "5C" is transmitted. Now you can read the reason of the alarm from the corresponding list, which can be called up with "$". Set the corresponding bit to acknowledge the alarm.

Transmit the corresponding function number to call the demanded function. Now the device transmits the contents of this function as a two-digit or fourdigit binary number and again completes the transmission with "CR". Now you can change the settings of this function. An example of this dialog is given below.

Operations set of the transmission

Character Hexadecimal Function

LF 0A H

CR 0D H Input is finished

$ 24 H

C 43 H

H 41 H

If you change a value via the interface, the corresponding numbers are transmitted as four-digit binary numbers without decimal point.

Decimal Hexadecimal ASCII character

030 H 0 131 H 1 232 H 2 333 H 3 434 H 4 535 H 5 636 H 6 737 H 7 838 H 8

939 H 9 10 3A H : 11 3 B H ; 12 3C H < 13 3D H = 14 3E H > 15 3F H ?

Line feed, the demanded device is selected

Function selection, see functions list

The selected function is changed

The function selected before is called again

Page 59

Device codes

• Answer of the selected device:

Device type Device code

Conex DIS-2Q

without

indication

present

Conex DIS-2Q with indication

present

Example of a data transmission

Read and change the switching point 1 of a Conex DIA with the device number 00.

• Establish the connection to the device.

• Select device No. 00:

ASCII

character

LF (0AH) Line feed 00 (30H, 30H) Device number

CR (0DH) Carriage return

This device is active until you select a device with a different number.

• Answer of the selected device:

ASCII

character

00 (30H, 30H) Device number

94 (39H, 34H)

CR (0DH) Carriage return

The selected device is in the automatic mode, and there are no unacknowledged alarm indications.

• Read switching point 1 from the selected device:

ASCII

character

$ (24H) Select function

24 (32H, 34H) Function number

CR (0DH) Carriage return

54 (35H), (34H)

5C (35H), (3CH)

Hex code Function

Transmitted

hex code

Device code Conex DIS-2Q

ASCII

character

0038

CR (0DH) Carriage return

• Change selected value (SP1) to 0.45mg/l:

ASCII

character

C002=

CR (0DH) Carriage return

• Answer of the selected device:

ASCII

character

002=

CR (0DH) Carriage return

• Call the same function again:

ASCII

character

A (41H) Call value again

CR (0DH) Carriage return

• Answer of the selected device:

Hex code Function

Value of the selected function SP1 as binary

(30H, 30H,

33H, 38H)

Hex code Function

(43H, 30H,

30H, 32H,

3DH)

Hex code Function

(30H, 30H,

32H, 3DH)

Hex code Function

number without decimal point: This means 0056 and correlates with

0.56 mg/l chlorine.

Change value. New value of the selected function: 002D. This means 0045 and correlates with 0.45 mg/l chlorine.

New value of the function (SP1) as binary number without decimal point: 002D. This means 0045 and correlates with

0.45 mg/l chlorine.

English (GB)

ASCII

character

002=

CR (0DH) Carriage return

Hex code Function

New value of the

(30H, 30H,

32H, 3DH)

function: 002D. This means 0045 and correlates with

0.45 mg/l chlorine.

Page 60

Functions list

English (GB)

• General functions

Function

number

46 Serial number of the device 47 Software state (month, year) 48 Manufacturing date (month, year) 06 Measuring input 1 in mV 07 Measuring input 2 in mV 08 Measuring input 3 in mV 00 Actual value in % 01 Input 2 in % 02 Check-back signal in % 21 Code 22 Setpoint SP 1 23 Setpoint SP 2 24 Proportional band 25 Reset time 26 Rate time

28 Alarm delay time 2A Hysteresis 2B Pulse frequency for SP1 2C Pulse frequency for SP2 2D Pulse - interpulse period 2E Motor running time

2F Indication influencing variable

31 Minimum pulse length

33 Device number

Function

State identifier (bit-oriented alarm list see below)

Check-back signal of the correcting variable

• State identifier (alarm list)

Bit Function

0 Dosing alarm 1 2 Input control stop 3 Automatic mode of controller 4 Dosing alarm: change recognized 5 6 Input control stop: change recognized

Automatic mode of controller: change

recognized 8 9

11 12 13 14 15 No indications present

Subject to alterations.

Page 61

Declaration of conformity 1

GB: EC declaration of conformity

We, Grundfos, declare under our sole responsibility that the product

Conex

DIS-2Q, to which this declaration relates, is in conformity with these Council directives on the approximation of the laws of the EC member states:

DE: EG-Konformitätserklärung

Wir, Grundfos, erklären in alleiniger Verantwortung, dass das Produkt

Conex

DIS-2Q, auf das sich diese Erklärung bezieht, mit den folgenden Richtlinien des Rates zur Angleichung der Rechtsvorschriften der EU-Mitgliedsstaaten übereinstimmt:

CZ: ES prohlášení o shodě

My firma Grundfos prohlašujeme na svou plnou odpovědnost, že výrobek Conex

souladu s ustanoveními směrnice Rady pro sblížení právních předpisů členských států Evropského společenství v oblastech:

FR: Déclaration de conformité CE

Nous, Grundfos, déclarons sous notre seule responsabilité, que le produit Conex

conforme aux Directives du Conseil concernant le rapprochement des législations des Etats membres CE relatives aux normes énoncées ci-dessous:

– EMC Directive (2004/108/EC).

Standards used: EN 61000 6-1(3), VDE 0839 Teil 6-1(3): 2002, EN 61000 6-2(4), VDE 0839 Teil 6-2(4): 2006, EN 61326-1: 2006, VDE 0843-20-1: 2006, EN 61010-1 :2002-08.

This EC declaration of conformity is only valid when published as part of the Grundfos installation and operating instructions.

Pfinztal, 15 July 2014

DIS-2Q, na nějž se toto prohlášení vztahuje, je v

DIS-2Q, auquel se réfère cette déclaration, est

Ulrich Stemick

Technical Director

Grundfos Water Treatment GmbH

Reetzstr. 85, D-76327 Pfinztal, Germany

Person authorised to compile technical file and

empowered to sign the EC declaration of conformity.

Declaration of conformity

Page 62

Argentina

Grundfos companies

Bombas GRUNDFOS de Argentina S.A. Ruta Panamericana km. 37.500 Centro Industrial Garin 1619 - Garin Pcia. de B.A. Phone: +54-3327 414 444 Telefax: +54-3327 411 111

Australia

GRUNDFOS Pumps Pty. Ltd. P.O. Box 2040 Regency Park South Australia 5942 Phone: +61-8-8461-4611 Telefax: +61-8-8340 0155

Austria

GRUNDFOS Pumpen Vertrieb Ges.m.b.H. Grundfosstraße 2 A-5082 Grödig/Salzburg Tel.: +43-6246-883-0 Telefax: +43-6246-883-30

Belgium

N.V. GRUNDFOS Bellux S.A. Boomsesteenweg 81-83 B-2630 Aartselaar Tél.: +32-3-870 7300 Télécopie: +32-3-870 7301

Belarus

Представительство ГРУНДФОС в Минске 220125, Минск ул. Шафарнянская, 11, оф. 56 Тел.: +7 (375 17) 286 39 72, 286 39 73 Факс: +7 (375 17) 286 39 71

E-mail: minsk@grundfos.com

Bosnia/Herzegovina

GRUNDFOS Sarajevo Trg Heroja 16, BiH-71000 Sarajevo Phone: +387 33 713 290 Telefax: +387 33 659 079 e-mail: grundfos@bih.net.ba

Brazil

BOMBAS GRUNDFOS DO BRASIL Av. Humberto de Alencar Castelo Branco, 630 CEP 09850 - 300 São Bernardo do Campo - SP Phone: +55-11 4393 5533 Telefax: +55-11 4343 5015

Bulgaria

Grundfos Bulgaria EOOD Slatina District Iztochna Tangenta street no. 100 BG - 1592 Sofia Tel. +359 2 49 22 200 Fax. +359 2 49 22 201 email: bulgaria@grundfos.bg

Canada

GRUNDFOS Canada Inc. 2941 Brighton Road Oakville, Ontario L6H 6C9 Phone: +1-905 829 9533 Telefax: +1-905 829 9512

China

Grundfos Alldos Dosing & Disinfection

ALLDOS (Shanghai) Water Technology Co. Ltd. West Unit, 1 Floor, No. 2 Building (T 4-2) 278 Jinhu Road, Jin Qiao Export Processing Zone Pudong New Area Shanghai, 201206 Phone: +86 21 5055 1012 Telefax: +86 21 5032 0596 E-mail: grundfosalldos-CN@grundfos.com

China

GRUNDFOS Pumps (Shanghai) Co. Ltd. 50/F Maxdo Centre No. 8 Xing Yi Rd. Hongqiao Development Zone Shanghai 200336 PRC Phone: +86-21 6122 5222 Telefax: +86-21 6122 5333

Croatia

GRUNDFOS CROATIA d.o.o. Cebini 37, Buzin HR-10010 Zagreb Phone: +385 1 6595 400 Telefax: +385 1 6595 499 www.hr.grundfos.com

Czech Republic

GRUNDFOS s.r.o. Čapkovského 21 779 00 Olomouc Phone: +420-585-716 111 Telefax: +420-585-716 299

Denmark

GRUNDFOS DK A/S Martin Bachs Vej 3 DK-8850 Bjerringbro Tlf.: +45-87 50 50 50 Telefax: +45-87 50 51 51 E-mail: info_GDK@grundfos.com www.grundfos.com/DK

Estonia

GRUNDFOS Pumps Eesti OÜ Peterburi tee 92G 11415 Tallinn Tel: + 372 606 1690 Fax: + 372 606 1691

Finland

OY GRUNDFOS Pumput AB Mestarintie 11 FIN-01730 Vantaa Phone: +358-(0)207 889 900 Telefax: +358-(0)207 889 550

France

Pompes GRUNDFOS Distribution S.A. Parc d’Activités de Chesnes 57, rue de Malacombe F-38290 St. Quentin Fallavier (Lyon) Tél.: +33-4 74 82 15 15 Télécopie: +33-4 74 94 10 51

Germany

GRUNDFOS Water Treatment GmbH Reetzstraße 85 D-76327 Pfinztal (Söllingen) Tel.: +49 7240 61-0 Telefax: +49 7240 61-177 E-mail: gwt@grundfos.com

Germany

GRUNDFOS GMBH Schlüterstr. 33 40699 Erkrath Tel.: +49-(0) 211 929 69-0 Telefax: +49-(0) 211 929 69-3799 E-mail: infoservice@grundfos.de Service in Deutschland: E-mail: kundendienst@grundfos.de

Greece

GRUNDFOS Hellas A.E.B.E. 20th km. Athinon-Markopoulou Av. P.O. Box 71 GR-19002 Peania Phone: +0030-210-66 83 400 Telefax: +0030-210-66 46 273

Hong Kong

GRUNDFOS Pumps (Hong Kong) Ltd. Unit 1, Ground floor Siu Wai Industrial Centre 29-33 Wing Hong Street & 68 King Lam Street, Cheung Sha Wan Kowloon Phone: +852-27861706 / 27861741 Telefax: +852-27858664

Hungary

GRUNDFOS Hungária Kft. Park u. 8 H-2045 Törökbálint, Phone: +36-23 511 110 Telefax: +36-23 511 111

India

GRUNDFOS Pumps India Private Limited 118 Old Mahabalipuram Road Thoraipakkam Chennai 600 097 Phone: +91-44 4596 6800

Indonesia

PT GRUNDFOS Pompa Jl. Rawa Sumur III, Blok III / CC-1 Kawasan Industri, Pulogadung Jakarta 13930 Phone: +62-21-460 6909 Telefax: +62-21-460 6910 / 460 6901

Ireland

GRUNDFOS (Ireland) Ltd. Unit A, Merrywell Business Park Ballymount Road Lower Dublin 12 Phone: +353-1-4089 800 Telefax: +353-1-4089 830

Italy

GRUNDFOS Pompe Italia S.r.l. Via Gran Sasso 4 I-20060 Truccazzano (Milano) Tel.: +39-02-95838112 Telefax: +39-02-95309290 / 95838461

Japan

GRUNDFOS Pumps K.K. Gotanda Metalion Bldg. 5F, 5-21-15, Higashi-gotanda Shiagawa-ku, Tokyo, 141-0022 Japan Phone: +81 35 448 1391 Telefax: +81 35 448 9619

Page 63

Korea

GRUNDFOS Pumps Korea Ltd. 6th Floor, Aju Building 679-5 Yeoksam-dong, Kangnam-ku, 135-916 Seoul, Korea Phone: +82-2-5317 600 Telefax: +82-2-5633 725

Latvia

SIA GRUNDFOS Pumps Latvia Deglava biznesa centrs Augusta Deglava ielā 60, LV-1035, Rīga, Tālr.: + 371 714 9640, 7 149 641 Fakss: + 371 914 9646

Lithuania

GRUNDFOS Pumps UAB Smolensko g. 6 LT-03201 Vilnius Tel: + 370 52 395 430 Fax: + 370 52 395 431

Malaysia

GRUNDFOS Pumps Sdn. Bhd. 7 Jalan Peguam U1/25 Glenmarie Industrial Park 40150 Shah Alam Selangor Phone: +60-3-5569 2922 Telefax: +60-3-5569 2866

Mexico

Bombas GRUNDFOS de México S.A. de C.V. Boulevard TLC No. 15 Parque Industrial Stiva Aeropuerto Apodaca, N.L. 66600 Phone: +52-81-8144 4000 Telefax: +52-81-8144 4010

Netherlands

GRUNDFOS Netherlands Veluwezoom 35 1326 AE Almere Postbus 22015 1302 CA ALMERE Tel.: +31-88-478 6336 Telefax: +31-88-478 6332 E-mail: info_gnl@grundfos.com

New Zealand

GRUNDFOS Pumps NZ Ltd. 17 Beatrice Tinsley Crescent North Harbour Industrial Estate Albany, Auckland Phone: +64-9-415 3240 Telefax: +64-9-415 3250

Norway

GRUNDFOS Pumper A/S Strømsveien 344 Postboks 235, Leirdal N-1011 Oslo Tlf.: +47-22 90 47 00 Telefax: +47-22 32 21 50

Poland

GRUNDFOS Pompy Sp. z o.o. ul. Klonowa 23 Baranowo k. Poznania PL-62-081 Przeźmierowo Tel: (+48-61) 650 13 00 Fax: (+48-61) 650 13 50

Portugal

Bombas GRUNDFOS Portugal, S.A. Rua Calvet de Magalhães, 241 Apartado 1079 P-2770-153 Paço de Arcos Tel.: +351-21-440 76 00 Telefax: +351-21-440 76 90

Romania

GRUNDFOS Pompe România SRL Bd. Biruintei, nr 103 Pantelimon county Ilfov Phone: +40 21 200 4100 Telefax: +40 21 200 4101 E-mail: romania@grundfos.ro

Russia

ООО Грундф ос Россия, 109544 Москва, ул. Школьная

Тел. (+7) 495 737 30 00, 564 88 00 Факс (+7) 495 737 75 36, 564 88 11

E-mail grundfos.moscow@grundfos.com

Serbia

GRUNDFOS Predstavništvo Beograd Dr. Milutina Ivkovića 2a/29 YU-11000 Beograd Phone: +381 11 26 47 877 / 11 26 47 496 Telefax: +381 11 26 48 340

Singapore

GRUNDFOS (Singapore) Pte. Ltd. 25 Jalan Tukang Singapore 619264 Phone: +65-6681 9688 Telefax: +65-6681 9689

Slovakia

GRUNDFOS s.r.o. Prievozská 4D 821 09 BRATISLAVA Phona: +421 2 5020 1426 sk.grundfos.com

Slovenia

GRUNDFOS d.o.o. Šlandrova 8b, SI-1231 Ljubljana-Črnuče Phone: +386 1 568 0610 Telefax: +386 1 568 0619 E-mail: slovenia@grundfos.si

South Africa

Grundfos (PTY) Ltd. Corner Mountjoy and George Allen Roads Wilbart Ext. 2 Bedfordview 2008 Phone: (+27) 11 579 4800 Fax: (+27) 11 455 6066 E-mail: lsmart@grundfos.com

Spain

Bombas GRUNDFOS España S.A. Camino de la Fuentecilla, s/n E-28110 Algete (Madrid) Tel.: +34-91-848 8800 Telefax: +34-91-628 0465

Sweden

GRUNDFOS AB (Box 333) Lunnagårdsgatan 6 431 24 Mölndal Tel.: +46 31 332 23 000 Telefax: +46 31-331 94 60

Switzerland

GRUNDFOS ALLDOS International AG Schönmattstraße 4 CH-4153 Reinach Tel.: +41-61-717 5555 Telefax: +41-61-717 5500 E-mail: grundfosalldos-CH@grundfos.com

Switzerland

GRUNDFOS Pumpen AG Bruggacherstrasse 10 CH-8117 Fällanden/ZH Tel.: +41-44-806 8111 Telefax: +41-44-806 8115

Taiwan

GRUNDFOS Pumps (Taiwan) Ltd. 7 Floor, 219 Min-Chuan Road Taichung, Taiwan, R.O.C. Phone: +886-4-2305 0868 Telefax: +886-4-2305 0878

Thailand

GRUNDFOS (Thailand) Ltd. 92 Chaloem Phrakiat Rama 9 Road, Dokmai, Pravej, Bangkok 10250 Phone: +66-2-725 8999 Telefax: +66-2-725 8998

Turkey

GRUNDFOS POMPA San. ve Tic. Ltd. Sti. Gebze Organize Sanayi Bölgesi Ihsan dede Caddesi,

2. yol 200. Sokak No. 204 41490 Gebze/ Kocaeli Phone: +90 - 262-679 7979 Telefax: +90 - 262-679 7905 E-mail: satis@grundfos.com

Ukraine

Бізнес Центр Європа Столичне шосе, 103 м. Київ, 03131, Україна Телефон : (+38 044) 237 04 00 Факс.: (+38 044) 237 04 01

E-mail: ukraine@grundfos.com

United Arab Emirates

GRUNDFOS Gulf Distribution P.O. Box 16768 Jebel Ali Free Zone Dubai Phone: +971-4- 8815 166 Telefax: +971-4-8815 136

United Kingdom

GRUNDFOS Pumps Ltd. Grovebury Road Leighton Buzzard/Beds. LU7 4TL Phone: +44-1525-850000 Telefax: +44-1525-850011

U.S.A.

GRUNDFOS Pumps Corporation 17100 West 118th Terrace Olathe, Kansas 66061 Phone: +1-913-227-3400 Telefax: +1-913-227-3500

Uzbekistan

Grundfos Tashkent, Uzbekistan The Representative Office of Grundfos Kazakhstan in Uzbekistan 38a, Oybek street, Tashkent Телефон: (+998) 71 150 3290 / 71 150 3291 Факс: (+998) 71 150 3292

Addresses revised 21.05.2014

Grundfos companies

Page 64

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The name Grundfos, the Grundfos logo, and be think innovate are registered trademarks

Grundfos Conex DIS-2Q Installation And Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

English (GB)

1. Symbols used in this document

2. Parameter settings

3. General information

4. Applications

5. Safety instructions

5.1 Obligations of the owner

5.2 Avoiding danger

6. Identification

6.1 Nameplate

7. Technical data

7.1 Enclosure class

7.2 General data

7.3 Electronic data and functions

7.3.1 Inputs and outputs

7.3.2 Controller functions

7.3.3 Display ranges

7.3.4 Adjustment ranges

7.4 RS-485 interface

7.5 Dimensions

8. Installation

8.1 Transport and storage

8.2 Unpacking

8.3 Installation requirements

8.4 Installation in control panel

8.5 Installation in wall housing

9. Electrical connection

9.1 Terminals

9.1.1 Cable types and length

9.2 Power supply connection

9.3 Current inputs and outputs

9.3.1 Current input 1 (measured value)

9.3.3 Current output 1 (measured value)

9.3.4 Current output 2 (position of feedback potentiometer)

9.5 Relay outputs

9.5.1 SP 1 (as N/O contact)

9.5.2 SP 2 (as N/O contact)

9.5.3 Alarm relay

10. Operation

10.1 Function

10.1.1 Application example

10.1.2 Chlorine control principle

10.1.3 pH control principle

10.2 Controls and displays

10.3 Operating the controller

10.3.1 Basic settings for the controller functions

10.3.2 Setting and displaying codes

10.3.4 Switching the code functions on and off

10.3.3 Reading measured value (actual value)

10.3.5 Scanning the active code functions

10.3.6 Summary of code functions

10.3.7 Settings for switching point SP 1

10.3.8 Settings for switching point 2

10.3.9 Displaying and setting hysteresis

10.3.10 Displaying and setting proportional band

10.3.11 Displaying and setting reset time

10.3.12 Displaying and setting derivative action time

10.3.13 Displaying and setting interpulse period

10.3.14 Displaying and setting actuating time

10.3.15 Displaying and setting minimum pulse width

10.3.16 Settings for the alarm relay

10.3.17 Set current input 1 (measured value)

10.3.19 Setting current output 1 (control output for SP 1)

10.3.20 Setting current output 2

10.3.21 Settings for the feedback potentiometer

10.3.22 Settings for RS-485 interface

10.3.23 Reset device to factory settings

11. Fault finding

12. Maintenance

12.1 Replacing mains fuses (wall housing)

13. Spare parts

14. Disposal

15. Appendix

15.1 Measuring and control technology

15.1.1 Terminology

15.1.2 Open-loop and closed-loop control