Welba Wts-300 User manual

Universal tank control

WTS-300 Firmware V2.0

Installation and operating instructions

for plant engineering companies,

installers and service engineers

WTS-300 G1

welba.de

Programmable via

configuration software

WELBA „KONSOFT"

Measuring - Controlling - Regulating

All from the same source

105204 WTS-300 V2.0 - 11.01.2019

Page 2 Page 3

Publisher:

WELBA GmbH

Electronic Control Engineering

Gewerbepark Siebenmorgen 6

D-53547 Breitscheid

Contents

+49 (0)2638 / 9320-0

+49 (0)2638 / 9320-20

[email protected]

www.welba.de

Contents

Tel:

Fax:

E-mail:

Internet:

1 Introduction

1.1 Information about this operating instructions Page 4

1.2 Limitation of liability Page 5

1.3 Device description Page 6

1.4 Type designation Page 6

1.5 Items supplied Page 7

1.6 Dimensions Page 7

1.7 Technical data Page 8

1.8 Sensor dimensions and technical data sensor Page 9

2 Safety

2.1 General Information Page 10

2.2 Intended use Page 12

2.3 Wiring, screening, earthing Page 13

2.4 Electrical safety Page 13

3 Installation

3.1 Location and climatic conditions Page 14

3.2 Unpacking and storage Page 14

3.3 Installation of housing Page 14

3.4 Fitting the sensor Page 15

4 Electrical connection

4.1 Safety during installation Page 16

4.2 Procedure Page 16

4.3 Wiring Page17

4.4 Connection diagram Page 18

4.5 Wiring the digital inputs Page 19

4.6 Connection robot Page 19

4.7 Connection of external pressure sensor (optional) Page 19

5 Operation

5.1 Function overview Page 20

5.2 The configuration software KONSOFT Page 23

5.3 Guideline for the initial installation / parameterization Page 24

5.4 Setting the date and time Page 26

5.5 Operation in levels Page 27

5.6 Operation of working level Page 28

5.6.1 Button functions Page 29

5.6.2 Meaning of the LEDs Page 30

5.6.3 Operation modes Page 32

6 Cleaning

6.1 Cleaning methods (cooling tank-configurations) Page 36

6.1.1 Circulation cleaning with a beaker Page 36

6.1.2 Circulation cleaning with two dosing pumps Page 36

6.1.3 Displacement cleaning with feed container, dosing pumps

in circulation line Page 37

6.1.4 Displacement cleaning with feed container and dosing pumps Page 37

6.2 Page 38Cleaning programme diagram

6.3 Explanation and programming of the cleaning process Page 39

6.3.1 Service functions for testing the cleaning cycle Page 46

7. Tank monitor and general fault handling

7.1 Description of tank monitor operation Page 48

7.2 Tank monitor: Milk removal YES or NO Page 50

7.3 Tank monitor: Handling multiple faults Page 53

7.4 Tank monitor: Display fault memory Page 53

7.5 Listing fault codes and their description Page 54

7.5.1 Critical tank monitor alarms (red) Page 54

7.5.2 Informative tank monitor alarms (green) Page 55

7.5.3 System alarms cleaning Page 56

7.5.4 System alarms cooling Page 58

7.5.5 System alarms external sensors Page 59

7.5.6 Test alarm Page 59

8. Setting of parameters

8.1 Change and save parameter values Page 60

8.2 Level „General cooling parameters“ c-parameter Page 62

8.3 Level „Extended cooling parameters“ P-parameter Page 64

8.4 Level „General cleaning parameters“ n-parameter Page 69

8.5 Level „Extended cleaning parameters“ r-parameter Page 72

8.6 Level „Service parameters“ E-parameter Page 77

8.7 Level „General tank monitor parameters“ h-parameter Page 78

8.8 Level „Extended tank monitor parameters“ H-parameter Page 80

8.9 Level „Alarm -> Event assignment“ F-parameter Page 82

8.10 Level „Hardware assignment“ A-parameter Page 84

8.11 Level „I-/O- test parameters“ o-parameter Page 90

9. Other information

9.1 Butterfly valve (manual or pneumatic) Page 92

9.2 Safety switch for manual butterfly valve Page 93

9.3 Robot control Page 94

9.3.1 Cleaning release by robot Page 95

9.4 Different variants for cooling start delay Page 96

9.5 Compressor switch-on delay / pre-agitating Page 98

9.6 Emergency cooling / sensor failure Page 98

9.7 Sensor correction procedure Page 98

9.8 Function second temperature sensor Page 99

9.9 Alarm level during cooling Page 98

9.10 Automatic / convenience functions Page 98

9.10.1 Autom. start to cont. agitating mode after exiting cooling mode Page 98

9.10.2 Automatic start to cooling mode after successful cleaning Page 98

9.11 Heating control Page 100

9.12 Function of pressure switch – Effect on pump and heater Page 100

9.13 Air in the cleaning pump -> automatic venting Page 101

9.14 Level control setting Page 102

9.15 Detergent injection position Page 103

9.16 Configuration of the different stages Page 103

9.17 Setting of a break in the cleaning programme Page 104

9.18 Page 104Function test alarm

9.19 Activation delay tank monitor Page 105

. Procedure following power failure9 20 Page 106

9.21 Power pack (optional) Page 106

9.22 Agitator monitoring module (optional) Page 107

9.23 Connection /Param. external analogue pressure sensor Page 108

9.24 Tank overflow protection Page 108

9.25 Tanks with various cooling levels Page 109

9.26 Anti-freezing protection by means of low pressure monitoring Page 109

9.27 General measures when using electronic control systems Page 110

Circuit diagram

is stored in the control box

105204 WTS-300 V2.0 - 11.01.2019 105204 WTS-300 V2.0 - 11.01.2019

Page 2 Page 3

Publisher:

WELBA GmbH

Electronic Control Engineering

Gewerbepark Siebenmorgen 6

D-53547 Breitscheid

Contents

+49 (0)2638 / 9320-0

+49 (0)2638 / 9320-20

[email protected]

www.welba.de

Contents

Tel:

Fax:

E-mail:

Internet:

1 Introduction

1.1 Information about this operating instructions Page 4

1.2 Limitation of liability Page 5

1.3 Device description Page 6

1.4 Type designation Page 6

1.5 Items supplied Page 7

1.6 Dimensions Page 7

1.7 Technical data Page 8

1.8 Sensor dimensions and technical data sensor Page 9

2 Safety

2.1 General Information Page 10

2.2 Intended use Page 12

2.3 Wiring, screening, earthing Page 13

2.4 Electrical safety Page 13

3 Installation

3.1 Location and climatic conditions Page 14

3.2 Unpacking and storage Page 14

3.3 Installation of housing Page 14

3.4 Fitting the sensor Page 15

4 Electrical connection

4.1 Safety during installation Page 16

4.2 Procedure Page 16

4.3 Wiring Page17

4.4 Connection diagram Page 18

4.5 Wiring the digital inputs Page 19

4.6 Connection robot Page 19

4.7 Connection of external pressure sensor (optional) Page 19

5 Operation

5.1 Function overview Page 20

5.2 The configuration software KONSOFT Page 23

5.3 Guideline for the initial installation / parameterization Page 24

5.4 Setting the date and time Page 26

5.5 Operation in levels Page 27

5.6 Operation of working level Page 28

5.6.1 Button functions Page 29

5.6.2 Meaning of the LEDs Page 30

5.6.3 Operation modes Page 32

6 Cleaning

6.1 Cleaning methods (cooling tank-configurations) Page 36

6.1.1 Circulation cleaning with a beaker Page 36

6.1.2 Circulation cleaning with two dosing pumps Page 36

6.1.3 Displacement cleaning with feed container, dosing pumps

in circulation line Page 37

6.1.4 Displacement cleaning with feed container and dosing pumps Page 37

6.2 Page 38Cleaning programme diagram

6.3 Explanation and programming of the cleaning process Page 39

6.3.1 Service functions for testing the cleaning cycle Page 46

7. Tank monitor and general fault handling

7.1 Description of tank monitor operation Page 48

7.2 Tank monitor: Milk removal YES or NO Page 50

7.3 Tank monitor: Handling multiple faults Page 53

7.4 Tank monitor: Display fault memory Page 53

7.5 Listing fault codes and their description Page 54

7.5.1 Critical tank monitor alarms (red) Page 54

7.5.2 Informative tank monitor alarms (green) Page 55

7.5.3 System alarms cleaning Page 56

7.5.4 System alarms cooling Page 58

7.5.5 System alarms external sensors Page 59

7.5.6 Test alarm Page 59

8. Setting of parameters

8.1 Change and save parameter values Page 60

8.2 Level „General cooling parameters“ c-parameter Page 62

8.3 Level „Extended cooling parameters“ P-parameter Page 64

8.4 Level „General cleaning parameters“ n-parameter Page 69

8.5 Level „Extended cleaning parameters“ r-parameter Page 72

8.6 Level „Service parameters“ E-parameter Page 77

8.7 Level „General tank monitor parameters“ h-parameter Page 78

8.8 Level „Extended tank monitor parameters“ H-parameter Page 80

8.9 Level „Alarm -> Event assignment“ F-parameter Page 82

8.10 Level „Hardware assignment“ A-parameter Page 84

8.11 Level „I-/O- test parameters“ o-parameter Page 90

9. Other information

9.1 Butterfly valve (manual or pneumatic) Page 92

9.2 Safety switch for manual butterfly valve Page 93

9.3 Robot control Page 94

9.3.1 Cleaning release by robot Page 95

9.4 Different variants for cooling start delay Page 96

9.5 Compressor switch-on delay / pre-agitating Page 98

9.6 Emergency cooling / sensor failure Page 98

9.7 Sensor correction procedure Page 98

9.8 Function second temperature sensor Page 99

9.9 Alarm level during cooling Page 98

9.10 Automatic / convenience functions Page 98

9.10.1 Autom. start to cont. agitating mode after exiting cooling mode Page 98

9.10.2 Automatic start to cooling mode after successful cleaning Page 98

9.11 Heating control Page 100

9.12 Function of pressure switch – Effect on pump and heater Page 100

9.13 Air in the cleaning pump -> automatic venting Page 101

9.14 Level control setting Page 102

9.15 Detergent injection position Page 103

9.16 Configuration of the different stages Page 103

9.17 Setting of a break in the cleaning programme Page 104

9.18 Page 104Function test alarm

9.19 Activation delay tank monitor Page 105

. Procedure following power failure9 20 Page 106

9.21 Power pack (optional) Page 106

9.22 Agitator monitoring module (optional) Page 107

9.23 Connection /Param. external analogue pressure sensor Page 108

9.24 Tank overflow protection Page 108

9.25 Tanks with various cooling levels Page 109

9.26 Anti-freezing protection by means of low pressure monitoring Page 109

9.27 General measures when using electronic control systems Page 110

Circuit diagram

is stored in the control box

105204 WTS-300 V2.0 - 11.01.2019 105204 WTS-300 V2.0 - 11.01.2019

Page 4 Page 5

1. Introduction

105204 WTS-300 V2.0 - 11.01.2019 105204 WTS-300 V2.0 - 11.01.2019

1. Introduction

These operating instructions include important technical and safety

information. It is vital to carefully study all these instructions before the

installation of the control or in case of any other work with the control!

These instructions have been prepared with the utmost care. However, the informa-

tion contained herein is not an assurance of product characteristics.

The manufacturer accepts no liability for errors and reserves the right to make techni-

1.1 Information about this operating instructions

These operating instructions are intended for the use by plant engineers, installers or

service technicians of the WTS-300 universal tank control. This manual contains all

necessary suggestions, Information, recommendations and advice for the safe and

proper installation and commissioning of the tank control. It is only with the knowledge

of this operating instruction that errors in the tank control system can be avoided and a

trouble-free operation is guaranteed.

Read the assembly instructions carefully and adhere to the recommendations de-

scribed in order to ensure proper operation. In addition, the local accident prevention

regulations and general safety regulations are to be observed for the field of applica-

tion of the tank control.

Operation instruction for the operator

The plant engineers, the installer or the service technician must prepare operating

instructions for the operator of the tank control (farmer). In this case the

parameterization of the delivery state must be clearly documented.

We recommend to only document those parameters which the operator of the tank

control needs.

When preparing the operating instructions for the operator the local regulations have

to be observed – see chapter “Safety”.

When delivered, the parameterization of the WTS-300 does not neces-

sarily correspond to the intended use. This must be adjusted accord-

ingly during the installation.

Basically, the installer of the system is responsible for the commission-

ing of the control.

The proper function of the WTS-300 depends on many external factors

on which the manufacturer has no influence. The manufacturer accepts

no liability for any damages on the milk cooling tank, the connected com-

ponents or the milk. The integrated tank monitor supports only the con-

trol of the milk quality and does neither absolve the farmer (as operator

of the milk tank) nor the driver of the milk collecting truck from the duty

of care. Both parties have to ensure that the milk is transportable before

it is removed from the tank.

1.2 Limitation of liability

NOTICE for storing the operating instructions

This instruction manual is part of the product and must always be readily available for

the service technician.

All information and instructions in this manual have been compiled taking into account

the applicable standards and regulations, the state of the art and our long-term experi-

ences.

WELBA GmbH does not assume any liability for damages due to:

!Non-observance of the installation instruction

!Improper use

!Installation by unqualified staff

!Non-professional installation by third parties

!Unauthorized modifications

!Technical modifications

!Use of unapproved spare parts (e.g. batteries)

Otherwise, our general terms and conditions as well as the terms of delivery of WELBA

GmbH and the legal regulations valid at the time of conclusion of the contract are ap-

plicable.

We reserve the right to make technical changes in the context of improving the proper-

ties of use and further developments,

Page 4 Page 5

1. Introduction

105204 WTS-300 V2.0 - 11.01.2019 105204 WTS-300 V2.0 - 11.01.2019

1. Introduction

These operating instructions include important technical and safety

information. It is vital to carefully study all these instructions before the

installation of the control or in case of any other work with the control!

These instructions have been prepared with the utmost care. However, the informa-

tion contained herein is not an assurance of product characteristics.

The manufacturer accepts no liability for errors and reserves the right to make techni-

1.1 Information about this operating instructions

These operating instructions are intended for the use by plant engineers, installers or

service technicians of the WTS-300 universal tank control. This manual contains all

necessary suggestions, Information, recommendations and advice for the safe and

proper installation and commissioning of the tank control. It is only with the knowledge

of this operating instruction that errors in the tank control system can be avoided and a

trouble-free operation is guaranteed.

Read the assembly instructions carefully and adhere to the recommendations de-

scribed in order to ensure proper operation. In addition, the local accident prevention

regulations and general safety regulations are to be observed for the field of applica-

tion of the tank control.

Operation instruction for the operator

The plant engineers, the installer or the service technician must prepare operating

instructions for the operator of the tank control (farmer). In this case the

parameterization of the delivery state must be clearly documented.

We recommend to only document those parameters which the operator of the tank

control needs.

When preparing the operating instructions for the operator the local regulations have

to be observed – see chapter “Safety”.

When delivered, the parameterization of the WTS-300 does not neces-

sarily correspond to the intended use. This must be adjusted accord-

ingly during the installation.

Basically, the installer of the system is responsible for the commission-

ing of the control.

The proper function of the WTS-300 depends on many external factors

on which the manufacturer has no influence. The manufacturer accepts

no liability for any damages on the milk cooling tank, the connected com-

ponents or the milk. The integrated tank monitor supports only the con-

trol of the milk quality and does neither absolve the farmer (as operator

of the milk tank) nor the driver of the milk collecting truck from the duty

of care. Both parties have to ensure that the milk is transportable before

it is removed from the tank.

1.2 Limitation of liability

NOTICE for storing the operating instructions

This instruction manual is part of the product and must always be readily available for

the service technician.

All information and instructions in this manual have been compiled taking into account

the applicable standards and regulations, the state of the art and our long-term experi-

ences.

WELBA GmbH does not assume any liability for damages due to:

!Non-observance of the installation instruction

!Improper use

!Installation by unqualified staff

!Non-professional installation by third parties

!Unauthorized modifications

!Technical modifications

!Use of unapproved spare parts (e.g. batteries)

Otherwise, our general terms and conditions as well as the terms of delivery of WELBA

GmbH and the legal regulations valid at the time of conclusion of the contract are ap-

plicable.

We reserve the right to make technical changes in the context of improving the proper-

ties of use and further developments,

Page 6 Page 7

The type designation of your controller is attached to the holder frame.

1.5 Items supplied

1. Introduction

105204 WTS-300 V2.0 - 11.01.2019 105204 WTS-300 V2.0 - 11.01.2019

The WTS-300 is an universal tank control unit that combines various

basic functions in one unit

,a milk cooling thermostat

,an extensive cleaning control

,an extended robot interface

,an extended tank monitoring system

All functions can be parameterised separately and universally.

The control unit has various operating modes:

,OFF mode (tank is empty)

,Cooling mode

,Continuous stirring mode

,Cleaning mode

WELBA KONSOFT

The free of charge configuration Software KONSOFT provides a

simple parameterization and updating of the WTS-300 as well as a

comfortable evaluation of the determined data.

See section 5.2

NOTE: The KONSOFT PC-Software has been thoroughly tested and has proven itself hundreds of times in customer

use. Despite all care, we point out that the use of the free PC-Software is at your own risk. WELBA does not accept any

liability for damages or loss of data resulting from the installation or use of the Software.

1.3 Device description

1.4 Type designation

!Controller WTS-300

!Holder

!Rubber seal

!Sensor

!Fixing screws

177

106

1. Introduction

1.6 Dimensions

These operating instructions contain important technical and safety

information. Please read carefully before installation and before any

work on or with the regulator.

These instructions have been compiled with maximum care and attention. However,

their content does not constitute an assurance of product features.

The manufacturer cannot be held liable for errors and may at any time make changes

°C

RESET

Robot

STOP

Mode

Valve open

Robot Stop

Page 6 Page 7

The type designation of your controller is attached to the holder frame.

1.5 Items supplied

1. Introduction

105204 WTS-300 V2.0 - 11.01.2019 105204 WTS-300 V2.0 - 11.01.2019

The WTS-300 is an universal tank control unit that combines various

basic functions in one unit

,a milk cooling thermostat

,an extensive cleaning control

,an extended robot interface

,an extended tank monitoring system

All functions can be parameterised separately and universally.

The control unit has various operating modes:

,OFF mode (tank is empty)

,Cooling mode

,Continuous stirring mode

,Cleaning mode

WELBA KONSOFT

The free of charge configuration Software KONSOFT provides a

simple parameterization and updating of the WTS-300 as well as a

comfortable evaluation of the determined data.

See section 5.2

NOTE: The KONSOFT PC-Software has been thoroughly tested and has proven itself hundreds of times in customer

use. Despite all care, we point out that the use of the free PC-Software is at your own risk. WELBA does not accept any

liability for damages or loss of data resulting from the installation or use of the Software.

1.3 Device description

1.4 Type designation

!Controller WTS-300

!Holder

!Rubber seal

!Sensor

!Fixing screws

177

106

1. Introduction

1.6 Dimensions

These operating instructions contain important technical and safety

information. Please read carefully before installation and before any

work on or with the regulator.

These instructions have been compiled with maximum care and attention. However,

their content does not constitute an assurance of product features.

The manufacturer cannot be held liable for errors and may at any time make changes

°C

RESET

Robot

STOP

Mode

Valve open

Robot Stop

Page 8 Page 9

Sensors other than our standard type are available on request

(different bush form or cable length).

Some of the options are shown here.

1.7 Technical data of control unit

Operating voltage 230V AC +/-10%, 50/60 Hz

Relay contact 12 performance relays

max. switching current 6 x each 6A AC1 - 250V AC

4 x each 10A AC1 - 250V AC

2 x each 12A AC1 - 250V AC

max. current per terminal 12A - 250V AC

max. switching voltage 250V AC - 50..60 Hz

Display 13 mm LED-Display, 4 digits

Display range -999 ... 9999

LED switching status displays 3 mm

Number of sensor inputs 1 or 2

Measurement range -5° ... +95°C

Temperature resolution 0.1°C

Sensor input KTY 81-210 (optionally PT-100)

Control mode two-step controller

Hysteresis* 0.1 K .. 99,9 K (standard adjusting 0.7 K)

Water detection via 2 independent level monitors

Target temperature T1* standard adjusting 8°C

Target temperature T2* standard adjusting 4°C

Digital inputs 8 (via optocoupler)

Interface 2x RS 485

Connection Plug-in screw connections

for cables up to 2.5 mm²

Housing

- Front dimension 177 x 106 mm

- Front panel cut out 157 x 97 mm

- Insertion depth 45 mm

Protection The control is open on the rear, as it is designed for

installation in a closed housing

- Housing front IP 64

- Rear IP 20

Electrical safety Protection class II,

Overvoltage category III, pollution degree I

Environment specifications:

- Operation temperature 0° .. +50°C

- Storage temperature -20° .. +70°C

- max. humidity 75% (no dew)

Technical data subject to change

KTY sensor

1.4301 (V2A)

40 mm

6.0 mm +/- 0.1

PVC

-10 .. 70° C

standard 2 metres

IP 65

40 mm

6,0 mm

6,1 mm

105204 WTS-300 V2.0 - 11.01.2019 105204 WTS-300 V2.0 - 11.01.2019

1. Introduction 1. Introduction

Sensor element

Bush material

Bush length

Bush diameter

Cable material

Measurement range

Cable length

Protection type

1.8 Sensor dimensions and technical data

Order no. TF1A-2

Page 8 Page 9

Sensors other than our standard type are available on request

(different bush form or cable length).

Some of the options are shown here.

1.7 Technical data of control unit

Operating voltage 230V AC +/-10%, 50/60 Hz

Relay contact 12 performance relays

max. switching current 6 x each 6A AC1 - 250V AC

4 x each 10A AC1 - 250V AC

2 x each 12A AC1 - 250V AC

max. current per terminal 12A - 250V AC

max. switching voltage 250V AC - 50..60 Hz

Display 13 mm LED-Display, 4 digits

Display range -999 ... 9999

LED switching status displays 3 mm

Number of sensor inputs 1 or 2

Measurement range -5° ... +95°C

Temperature resolution 0.1°C

Sensor input KTY 81-210 (optionally PT-100)

Control mode two-step controller

Hysteresis* 0.1 K .. 99,9 K (standard adjusting 0.7 K)

Water detection via 2 independent level monitors

Target temperature T1* standard adjusting 8°C

Target temperature T2* standard adjusting 4°C

Digital inputs 8 (via optocoupler)

Interface 2x RS 485

Connection Plug-in screw connections

for cables up to 2.5 mm²

Housing

- Front dimension 177 x 106 mm

- Front panel cut out 157 x 97 mm

- Insertion depth 45 mm

Protection The control is open on the rear, as it is designed for

installation in a closed housing

- Housing front IP 64

- Rear IP 20

Electrical safety Protection class II,

Overvoltage category III, pollution degree I

Environment specifications:

- Operation temperature 0° .. +50°C

- Storage temperature -20° .. +70°C

- max. humidity 75% (no dew)

Technical data subject to change

KTY sensor

1.4301 (V2A)

40 mm

6.0 mm +/- 0.1

PVC

-10 .. 70° C

standard 2 metres

IP 65

40 mm

6,0 mm

6,1 mm

105204 WTS-300 V2.0 - 11.01.2019 105204 WTS-300 V2.0 - 11.01.2019

1. Introduction 1. Introduction

Sensor element

Bush material

Bush length

Bush diameter

Cable material

Measurement range

Cable length

Protection type

1.8 Sensor dimensions and technical data

Order no. TF1A-2

Page 10 Page 11

The parameter settings of the WTS-300 as supplied do not correspond

to the intended use. This can lead to undefined behaviour by individual

components when the system is commissioned.

For this reason, no actuators should be connected when starting opera-

tion. Load circuits should be separated.

The general principle is that the plant constructor is responsible for putt-

ing the controller into operation.

The plant engineering company, the installer or the service engineer

must prepare operating instructions for the operator, taking account of

the controller's parameters as supplied.

We recommend referring only to the parameters which the end user

needs for safe operation.

In preparing the operating instructions for the end user, especially the

chapter on “Safety”, account must be taken of local regulations.

2.1 General Information

2. Safety

105204 WTS-300 V2.0 - 11.01.2019 105204 WTS-300 V2.0 - 11.01.2019

2. Safety

These operating instructions contain important technical and safety

information. Please read carefully before installation and before any

work on or with the regulator.

It is the duty of the party commissioning the system to ensure compli-

ance with the following guidelines.

The universal tank controller may only be installed by an authorised spe-

cialist, observing all local safety requirements.

Access to the environment when connected must be restricted to spe-

cialised personnel.

Universal tank controllers contain live components. They must be built

into the plant in such a way that contact with such live components is

impossible.

The controller is not suitable for use in explosive atmospheres. Danger

of explosion. Use only outside areas subject to explosive atmospheres.

The device must not be used if the housing or connection terminals are

damaged.

No fluids must penetrate the housing.

The universal tank control may not be exported to the USA without the

manufacturer's express permission.

IMPORTANT NOTICE ABOUT THE ACCUMULATORS (only if installed)

The life of the accumulators is limited. The built-in accumulators must

be replaced by new ones every two years at the latest.

Only (!) charged accumulators of the following specification may be

used: 1.2 V NiMh - size AA (min. 2.000 mAh)

DO NOT USE BATTERIES !!! EXPLOSIVE !!!

IMPORTANT NOTICE ON LIABILITY

The faultless function of the WTS-300 depends on many external fac-

tors, which the manufacturer has no influence on. The manufacturer

assumes no liability for damage to the milk cooling tank, the connected

components or the milk. The integrated tank monitor thus only supports

the milk quality and does not release the farmer (as operator of the milk

cooling tank) or the driver of the milk collecting truck from the duty of

care. These must ensure, before withdrawing from the tank, that the milk

is transportable.

Page 10 Page 11

The parameter settings of the WTS-300 as supplied do not correspond

to the intended use. This can lead to undefined behaviour by individual

components when the system is commissioned.

For this reason, no actuators should be connected when starting opera-

tion. Load circuits should be separated.

The general principle is that the plant constructor is responsible for putt-

ing the controller into operation.

The plant engineering company, the installer or the service engineer

must prepare operating instructions for the operator, taking account of

the controller's parameters as supplied.

We recommend referring only to the parameters which the end user

needs for safe operation.

In preparing the operating instructions for the end user, especially the

chapter on “Safety”, account must be taken of local regulations.

2.1 General Information

2. Safety

105204 WTS-300 V2.0 - 11.01.2019 105204 WTS-300 V2.0 - 11.01.2019

2. Safety

These operating instructions contain important technical and safety

information. Please read carefully before installation and before any

work on or with the regulator.

It is the duty of the party commissioning the system to ensure compli-

ance with the following guidelines.

The universal tank controller may only be installed by an authorised spe-

cialist, observing all local safety requirements.

Access to the environment when connected must be restricted to spe-

cialised personnel.

Universal tank controllers contain live components. They must be built

into the plant in such a way that contact with such live components is

impossible.

The controller is not suitable for use in explosive atmospheres. Danger

of explosion. Use only outside areas subject to explosive atmospheres.

The device must not be used if the housing or connection terminals are

damaged.

No fluids must penetrate the housing.

The universal tank control may not be exported to the USA without the

manufacturer's express permission.

IMPORTANT NOTICE ABOUT THE ACCUMULATORS (only if installed)

The life of the accumulators is limited. The built-in accumulators must

be replaced by new ones every two years at the latest.

Only (!) charged accumulators of the following specification may be

used: 1.2 V NiMh - size AA (min. 2.000 mAh)

DO NOT USE BATTERIES !!! EXPLOSIVE !!!

IMPORTANT NOTICE ON LIABILITY

The faultless function of the WTS-300 depends on many external fac-

tors, which the manufacturer has no influence on. The manufacturer

assumes no liability for damage to the milk cooling tank, the connected

components or the milk. The integrated tank monitor thus only supports

the milk quality and does not release the farmer (as operator of the milk

cooling tank) or the driver of the milk collecting truck from the duty of

care. These must ensure, before withdrawing from the tank, that the milk

is transportable.

Page 12 Page 13

!Wherever possible, keep input, output and supply leads and sensor cable physically

separate from each other and do not lay them parallel to each other.

!Mains voltage cables and low-voltage cables must not be laid in one cable.

!Use screened and twisted interface and sensor cables.

!Earth the screening of temperature sensors unilaterally in the switchbox.

!Ensure correctly wired potential equalisation.

When selecting wiring materials and installing and connecting the temperature control-

ler to the electricity supply, account must be taken of DIN VDE 0100 “Erection of power

installations with rated voltages below 1000” or the relevant national regulations (e.g.

based on IEC 60364).

!The controller itself and the associated control circuits and load circuits must be pro-

tected separately and in accordance with the local regulations.

!The separate protection of the control- and load circuit must be carried out according

to local conditions!

!In order to prevent destruction of the relay or semiconductor relay outputs in the event

of a short-circuit, the load circuit should be fused to the maximum permissible output

current.

!As well as incorrect installation, wrong parameter settings can also adversely affect

the correct functioning of the controller. For this reason, safety devices that are inde-

pendent of the controller should always be used, e.g. high and low pressure valves or

temperature limiters. Account should be taken of the local safety regulations in this

connection.

!The load circuit (relay outputs K1 to K12) must be fused in accordance with the con-

nected components.

!The connection of external voltages to the digital inputs can lead to the destruction of

the control.

!Caution: All cables to the digital inputs must be shielded and kept as short as possible.

EMC.

Important note concerning the external fuse

!The transformer, which is installed in the WTS-300, has a two-chamber safety wind-

ing, which is only short-circuit-proof due to the built-in thermal protection. If the tem-

perature exceeds 145 ° C, there is a risk of damage!

Protect control unit with an external fuse of 160mA!

Universal tank controllers WTS-300 are designed to control heating systems, conden-

sing units, alarms, fans, etc. in milk cooling tanks as well as to monitor milk quality.

Furthermore, connected milking robots can be controlled. Any other use of the device

is permitted only with prior written permission from the manufacturer.

The controller is intended only for incorporating into machinery, display panels or

switchboxes etc. and when fitted corresponding to protection class 2 (double or rein-

forced insulation) It is only allowed to be put into operation in installed state. The use .

of the control is permitted in devices of protection class 1 and 2. The controller must

not be modified or converted in any way.

The universal tank controller is ready for use only when the parameters have been set

appropriately. Its use before this has been done would have no benefits and could also

damage the equipment or adversely affect the milk to be temperature-controlled.

Responsibility for the faultless functioning of the connected devices lies with the plant

engineer or the installer or the service engineer who has installed and commissioned

the WTS-300.

The device is fitted with a resistance temperature sensor.

The controller is not suitable for use in explosive atmospheres. Danger of explosion.

Use only outside areas subject to explosive atmospheres.

The WTS-300 fulfils the EC requirements for electromagnetic compatibility (EMC)

and the Low Voltage Directive (LVD).

The safety components meet the VDE regulations.

105204 WTS-300 V2.0 - 11.01.2019 105204 WTS-300 V2.0 - 11.01.2019

2. Safety 2. Safety

2.2 Intended use 2.3 Wiring, screening, earthing

2.4 Electrical safety

These operating instructions contain important technical and safety

information. Please read carefully before installation and before any

work on or with the regulator.