Lutz-Jesco TOPAX MC User manual

Dosing
Conveying
Control
Liquids
Gases
Systems
© Lutz-Jesco GmbH 2020 BA-46020-02-V04
Multi-Channel Controller
Operating instructions
Read the operating manual!
The user is responsible for installation and operation related mistakes!
40900001_6
Hauptansicht Gaswarngerät EASYCON GW und TOPAX MC
TOPAX®MC

Table of Contents 3
© Lutz-Jesco GmbH 2020
Subject to technical changes.
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Multi-Channel Controller TOPAX®MC Operating instructions
Table of Contents
1 Notes for the Reader ..........................................................4
1.1 General non-discrimination......................................................4
1.2 Explanation of the signal words ................................................4
1.3 Explanation of the warning signs ..............................................4
1.4 Identification of warnings.........................................................4
1.5 Identification of action instructions ...........................................4
2 Safety ................................................................................. 5
2.1 General warnings.....................................................................5
2.2 Hazards due to non-compliance with the safety instructions .....5
2.3 Working in a safety-conscious manner .....................................5
2.4 Personnel qualification.............................................................5
3 Intended use ......................................................................7
3.1 Notes on product warranty .......................................................7
3.2 Intended purpose.....................................................................7
3.3 Foreseeable misuse.................................................................7
4 Product description ...........................................................8
4.1 Scope of delivery .....................................................................8
4.2 Design and function .................................................................8
4.3 multi-channel controller TOPAX®MC rating plate ......................9
5 Technical data.................................................................. 10
5.1 Measuring inputs...................................................................10
5.2 Output modules .....................................................................10
6 Dimensions ...................................................................... 11
6.1 Outside dimensions ...............................................................11
6.2 Drillhole dimensions ..............................................................11
7 Installation ....................................................................... 12
7.1 Principles ..............................................................................12
7.2 Installation on the wall ...........................................................12
7.3 Electrical installation..............................................................12
7.4 Terminal connection...............................................................13
7.5 Connecting sensors ...............................................................14
7.6 Connecting the actors ............................................................15
7.7 Digital inputs .........................................................................17
7.8 RC protection for relay............................................................17
7.9 Connecting Ethernet ..............................................................17
7.10 RS485 interface...................................................................18
8 Commissioning ................................................................ 19
8.1 First steps..............................................................................19
8.2 Configuration.........................................................................20
8.3 Password protection ..............................................................25
8.4 Network settings....................................................................26
9 Operation..........................................................................27
9.1 Confirming a message ...........................................................27
9.2 Logbook ................................................................................27
9.3 Configure trend display ..........................................................28
9.4 Manual mode.........................................................................28
9.5 Calibration.............................................................................28
9.6 Setpoints and reference sets..................................................32
9.7 Access via network ................................................................34
10 Maintenance ....................................................................35
10.1 Maintenance intervals..........................................................35
10.2 Keeping logfiles ...................................................................35
10.3 Updating software................................................................35
10.4 Battery ................................................................................35
10.5 Replacing the fuse ...............................................................36
10.6 Resetting the settings ..........................................................36
10.7 Finishing maintenance.........................................................37
11 Troubleshooting TOPAX®MC ...........................................38
12 Modbus addresses TOPAX®MC .......................................39
13 EU Declaration of Conformity...........................................45
14 Warranty claim................................................................. 46
15 Glossary ...........................................................................47
16 Index.................................................................................48

Notes for the Reader
4© Lutz-Jesco GmbH 2020
BA-46020-02-V04
Multi-Channel Controller TOPAX®MC Operating instructions
1 Notes for the Reader
This operating manual contains information and behaviour rules for the
safe and designated operation of the multi-channel controller TOPAX®
MC.
Observe the following principles:
nRead the entire operating manual prior to starting-up the device.
nEnsure that everyone who works with or on the device has read the
operating manual and follows it.
nMaintain the operating manual throughout the service life of the de-
vice.
nPass the operating manual on to any subsequent owner of the device.
1.1 General non-discrimination
In this operating manual, only the male gender is used where grammar
allows gender allocation. The purpose of this is to make the text easy to
read. Men and women are always referred to equally. We would like to
ask female readers for understanding of this text simplification.
1.2 Explanation of the signal words
Different signal words in combination with warning signs are used in this
operating manual. Signal words illustrate the gravity of possible injuries if
the risk is ignored:
Signal word Meaning
DANGER! Refers to imminent danger. Ignoring this sign may
lead to death or the most serious injuries.
WARNING!
Refers to a potentially hazardous situation.
Failure to follow this instruction may lead to death
or severe injuries.
CAUTION!
Refers to a potentially hazardous situation.
Failure to follow this instruction may lead to
minor injury or damage to property.
PLEASE NOTE Refers to a danger which, if ignored, may lead to
risk to the machine and its function.
Tab. 1: Explanation of the signal words
1.3 Explanation of the warning signs
Warning signs represent the type and source of a danger:
Warning sign Type of danger
General danger
Danger from electrical voltage
Danger from poisonous substances
Danger of damage to machine or functional
influences
Tab. 2: Explanation of the warning signs
1.4 Identification of warnings
Warnings are intended to help you recognise risks and avoid negative
consequences.
This is how warnings are identified:
Warning sign SIGNAL WORD
Description of danger.
Consequences if ignored.
ð
The arrow signals a safety precaution to be taken to eliminate the
danger.
1.5 Identification of action instructions
This is how pre-conditions for action are identified:
ü
Pre-condition for action which must be met before taking action.
@A resource such as a tool or auxiliary materials required to perform
the operating instructions.
This is how instructions for action are identified:
èSeparate step with no follow-up action.
1. First step in a series of steps.
2. Second step in a series of steps.
4Result of the above action.
ü
Action completed, aim achieved.

Safety 5
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Subject to technical changes.
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Multi-Channel Controller TOPAX®MC Operating instructions
2 Safety
2.1 General warnings
The following warnings are intended to help you eliminate the dangers
that can arise while handling the device. Risk prevention measures al-
ways apply regardless of any specific action.
Safety instructions warning against risks arising from specific activities
or situations can be found in the respective sub-chapters.
DANGER!
Mortal danger from electric shock!
Wrongly connected or located cables or damaged ones can injure you.
ð
Replace damaged cables without delay.
ð
Do not use extension cables.
ð
Do not bury cables.
ð
Secure cables to avoid being damaged by other equipment.
WARNING!
Increased risk of accidents due to insufficient qualifica-
tion of personnel!
The device may only be installed, operated and maintained by person-
nel with sufficient qualifications. Insufficient qualification will increase
the risk of accidents.
ð
Ensure that all action is taken only by personnel with sufficient and
corresponding qualifications.
ð
Prevent access to the system for unauthorised persons.
PLEASE NOTE
Do not dispose of the device in the domestic waste!
Do not dispose of electric devices via the domestic waste.
ð
The device and its packaging must be disposed of in accordance
with locally-valid laws and regulations.
ð
Dispose of different materials separately and ensure that they are
recycled.
2.2 Hazards due to non-compliance with the safety
instructions
Failure to follow the safety instructions may endanger not only persons,
but also the environment and the device.
The specific consequences can be:
nFailure of major unit und system functions.
nFailure of required maintenance and repair methods
nRisk to persons when working on the device
nDanger to the environment from overdosing
2.3 Working in a safety-conscious manner
Besides the safety instructions specified in this operating manual, further
safety rules may apply. Always observe all safety-related regulations and
guidelines applicable at the product's location of use. Note in particular
the following items:
nsafety regulations on handling electricity and live components,
nsafety regulations on handling hazardous substances,
naccident prevention regulations
nSafety and operating provisions,
nEnvironmental protection provisions,
nother applicable directives and laws.
2.4 Personnel qualification
Any personnel who work on the device must have appropriate special
knowledge and skills.
Anybody who works on the device must meet the conditions below:
nAttendance at all the training courses offered by the owner,
nPersonal suitability for the respective activity,
nsufficient qualification for the respective activity,
ntraining in how to handle the device,
nknowledge of safety equipment and the way this equipment functions,
nknowledge of this operating manual, particularly of safety instructions
and sections relevant for the activity,
nKnowledge of fundamental regulations regarding health and safety
and accident prevention.
All persons must generally have the following minimum qualification:
nTraining as specialists to carry out work on the device unsupervised,
nsufficient training that they can work on the device under the supervi-
sion and guidance of a trained specialist.
2.4.1 Specialist staff
Thanks to their professional training, knowledge, experience and knowl-
edge of the relevant specifications, specialist staff are able to perform the
job allocated to them and recognise and/or eliminate any possible dan-
gers by themselves.

Safety
6© Lutz-Jesco GmbH 2020
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Multi-Channel Controller TOPAX®MC Operating instructions
2.4.2 Trained electricians
Due to their professional training, knowledge and experience as well as
knowledge of specific standards and provisions, trained electricians are
able to do the electrical work assigned to them and to recognise and
avoid any potential dangers by themselves.
They are specially trained for their specific working environment and are
familiar with relevant standards and provisions.
They must comply with the legally binding regulations on accident pre-
vention.
2.4.3 Trained persons
Trained persons have received training from the operator about the tasks
they are to perform and about the dangers stemming from improper be-
haviour.
Trained persons have attended all trainings offered by the operator.
2.4.4 Personnel tasks
In the table below, you can check what personnel qualifications are re-
quired for the respective tasks. Only people with appropriate qualifica-
tions are allowed to perform these tasks!
Qualification Activities
Specialist staff
Transportation
Mechanical installation
Commissioning
Taking out of operation
Fault rectification
Maintenance
Repairs
Disposal
Trained electricians Electrical installation
Trained persons Control
Tab. 3: Personnel qualification

Intended use 7
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Multi-Channel Controller TOPAX®MC Operating instructions
3 Intended use
3.1 Notes on product warranty
Any non-designated use of the device can impair its function and the pro-
tection provided. This leads to invalidation of any warranty claims!
Please note that liability is on the side of the user in the following cases:
nThe device is operated in a manner which is not consistent with these
operating instructions, particularly safety instructions, handling in-
structions and chapter 3 “Intended use” on page7.
nInformation on usage and environment (section 5 “Technical data” on
page10) is not adhered to.
nIf people operate the device who are not adequately qualified to carry
out their respective activities.
nUnauthorised changes are made to the device.
3.2 Intended purpose
The controller monitors the current measured values during water treat-
ment and controls the dosing systems connected for water treatment. In
this way, the controller ensures constant water parameters in various ap-
plications and can be deployed universally. One of its main applications is
to maintain the quality of water in public swimming pools and in industrial
applications by evaluating the measurements of a range of data including
chlorine value, pH value, Redox value, the total chlorine, conductivity and
the control of chlorinators.
3.3 Foreseeable misuse
The following section provides information regarding the device applica-
tions which are classified as non-intended use.This section is intended to
allow you to detect possible misuse in advance and to avoid it.
Foreseeable misuse is assigned to the individual stages of the product
lifetime:
3.3.1 Incorrect assembly
nConnecting the mains voltage without a protective earth
nNon-fused or non-standard mains voltage.
nNot possible to immediately or easily disconnect the power supply
nWrong connecting cables for mains voltage
nSensors and actors connected to the incorrect terminals or incorrectly
configured.
nProtective earth removed.
3.3.2 Incorrect start-up
nCommissioning with damaged or obsolete sensors.
nCommissioning without the establishment of all protective measures,
fastenings etc.
3.3.3 Incorrect operation
nProtective equipment not functioning correctly or dismantled
nUnauthorised modification of the controller.
nIgnoring of alarm or error messages.
nThe elimination of alarm or error messages by insufficiently-qualified
personnel.
nBridging the external fuse
nDifficult operation due to insufficient lighting or poor access to the de-
vice.
nOperation not possible due to dirty or illegible display.
3.3.4 Incorrect maintenance
nCarrying out maintenance during ongoing operation
nNo adequate or regular inspection of correct functioning
nNo replacement of damaged parts or cables.
nNo securing against reactivation during maintenance work
nUse of the wrong spare parts.

Product description
8© Lutz-Jesco GmbH 2020
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Multi-Channel Controller TOPAX®MC Operating instructions
4 Product description
4.1 Scope of delivery
Please compare the delivery note with the scope of delivery. The follow-
ing items are part of the scope of delivery:
nMulti-channel controller TOPAX®MC
nOperating instructions
nMounting set
nSensors (optional)
nCable connection from the device to the sensors (optional)
4.2 Design and function
4.2.1 Functional diagram of a two-channel controller
Fig. 1: Functional diagram of a two-channel controller
Gap Field Description
Sensors
1. Free chlorine
2. Disturbance
variable
3. pH value
1. Measuring the free chlorine
2. The disturbance variable is a variable flow volume which can be taken into account
3. Measuring the pH value
Input modules
1. Current module
2. Digital 1
3. Virtual 1
4. pH Redox module
1. Module for 4 − 20 mA signals and sensors with 24 V voltage supply
2. Digital input for the external control of a function (here: external stop)
3. Parameter calculated (here effective chlorine)
4. Module for pH and Redox single-rod measuring cells
Control system 1. Controller 1
2. Controller 2
1. Controlling the free chlorine inc. pH/temperature compensation and disturbance variable
2. Controlling the pH value inc. temperature compensation
Output modules 1. Module 1
2. Module 2
1. Module on slot 1 to connect an actor (here: MAGDOS LD)
2. Module on slot 2 to connect an actor (here: MEMDOS LP)
Tab. 4: Explanation of functional diagram of a two-channel controller
Sensors Input modules Control system Output modules Actors
free
chlorine
Disturbance
variable
On/Off
pH
Current
module
Digital 1
Virtual 1
(Effective chlorine)
pH Redox
module
Controller 1 Module 1
pH /
Temp
Distur-
bance
variable
Function
(External stop)
Controller 2
Temp Module 2
Compensation
Compensation

Product description 9
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Multi-Channel Controller TOPAX®MC Operating instructions
4.2.2 Functions of the device
The stationary device measures the water parameters using sensors.
Controlling actors such as dosing pumps controls the water parameters
to the desired setpoint.
4.2.3 Main view
The main menu view will appear upon the start of the device or 5 minutes
after the last input. The main view shows the current values from up to
four sensors and further information.
2
1
45
3
6
Fig. 2: Main view with three sensors
Item Function
1Login/password settings
2 Date/time
3Measured values
4Main menu
5File Browser
6Status row for messages
Tab. 5: Position numbers main view with three sensors
4.3 multi-channel controller TOPAX®MC rating plate
There is information on the product about safety or the product's way of
functioning. The information must stay legible for the duration of the ser-
vice life of the product.
7
6
5
2
1
3
4
Fig. 3: Multi-channel controller TOPAX®MC rating plate
Item Description
1Product name
2Technical specifications
3Label showing conformity with applicable European
directives
4WEEE label
5Serial number
6Part number
7Month/year of manufacture
Tab. 6: Position numbers rating plate multi-channel controller TOPAX®MC

Technical data
10 © Lutz-Jesco GmbH 2020
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Multi-Channel Controller TOPAX®MC Operating instructions
5 Technical data
TOPAX®MC
Housing dimensions (W x H x D) mm 302 x 240 x 107
Voltage supply 100 – 240 V AC, 50/60 Hz
Power consumption W max. 20
Analogue outputs for remote transmission 4 x 0/4 – 20 mA, working resistance max. 500 Ω
Disturbance variable input mA 0/4 – 20
Interfaces Ethernet TCP/IP or RS485 Modbus RTU (optional)
Protection class IP65
Ambient temperature °C -5 to +45 (no exposure to direct sunlight)
Control characteristic
P, PI, PID or PD behaviour,
control direction selectable with disturbance variable feed forward,
2-side control selectable
Tab. 6:Technical data multi-channel controller TOPAX®MC
5.1 Measuring inputs
All measuring inputs consist of an input for temperature measurement via Pt100 and a second input for the measurement of a further water parameter.
On some measuring inputs, this input will measure a number of different parameters.
Measuring inputs (depending on version)
Number of measuring inputs up to 4
Free chlorine
Amperometric 3-electrode measur-
ing cell with potentiostat (DMZ3.1) mg/l 0 – 15 (dependant on the measuring cell transconductance)
CS120 excess chlorine measuring cell mg/l 0 – 10 (dependant on the measuring cell transconductance)
Diaphragm-covered measuring cell mg/l 0 – 10 (dependant on the measuring cell)
Chlorine dioxide
Amperometric 3-electrode measur-
ing cell with potentiostat (DMZ3.1) mg/l 0 – 15 (dependant on the measuring cell transconductance)
CS120 excess chlorine measuring cell mg/l 0 – 10 (dependant on the measuring cell transconductance)
Diaphragm-covered measuring cell mg/l 0 – 2 (dependant on the measuring cell)
Total chlorine Diaphragm-covered measuring cell mg/l 0 – 10 (dependant on the measuring cell)
pH value pH single-rod measuring cell pH 0 – 14 (dependant on the single-rod measuring chain)
Redox value Redox single-rod measuring cell mV 0 – 1000 (dependant on the single-rod measuring chain)
Conductivity Conductive conductivity measuring cell inc.
temperature sensor PT100, K = 1 mS/cm 0 – 2, 0 – 20, 0 – 100
Temperature Pt100 °C -10 to +90
Tab. 7: Multi-channel controller TOPAX®MC measuring inputs
5.2 Output modules
Output modules (depending on version)
Servomotor relay 2 x 230 V AC, 5 A (ohmic load)
kΩ Potentiometer feedback: 1 – 10
Servomotor 20 mA Constant 0/4 – 20 mA output
Servomotor with 20 mA feedback
Relays 2 x 230 V AC, 5 A (ohmic load)
Optocoupler 2 x 80 V DC, 5 mA
Tab. 8: Multi-channel controller TOPAX®MC output modules

Dimensions 11
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Subject to technical changes.
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Multi-Channel Controller TOPAX®MC Operating instructions
6 Dimensions
All dimensions in mm
6.1 Outside dimensions
All dimensions in mm
Fig. 4: Outside dimensions
6.2 Drillhole dimensions
All dimensions in mm
Fig. 5: Drillhole dimensions
302
240
267
171

Installation
12 © Lutz-Jesco GmbH 2020
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Multi-Channel Controller TOPAX®MC Operating instructions
7 Installation
7.1 Principles
Make sure that the installation location complies with the following re-
quirements:
nThe display is easily accessible and is visible.
nPlan to leave min. 20 cm free space for the installation of the cable
underneath the device. You must be able to install the cable without
kinking or damage.
nVarious lines (e.g. voltage supply, data cable and sensitive lines for
measuring purposes) must be installed separately. The different lines
should only cross at 90° so as to prevent falsifications.
nElectrical, magnetic and electromagnetic fields affect signal transmis-
sion and can destroy electronic components.
nCompliance with the permissible ambient temperatures (see section 5
“Technical data” on page10).
7.2 Installation on the wall
Resources required:
@Assembly kit
@Drill
@Slotted screwdriver
Perform the following work steps:
1. Drill the four drillholes for wall mounting. The exact dimensions are
stated in section 6 “Dimensions” on page11.
2. Unscrew the screw on the right-hand side of the device and pull out
the rod.
4You can now open the device.
3. Open the device and use the screws for wall mounting. Ensure that
the device is secured to the wall.
4. Close the device again using the rod.
ü
The device is fitted on the wall.
7.3 Electrical installation
The voltage supply to your device can now be performed via a normal
Schuko plug or a control cabinet. Perform the specifications of this sec-
tion for devices without a pre-fitted Schuko plug.
Pre-conditions for actions:
ü
The device was installed in accordance with section 7.2 “Installation
on the wall” on page12.
ü
A voltage supply with 100 − 240 V AC (50/60 Hz) is available.
ü
The voltage supply is deactivated before the start and secured
against reactivation.
ü
The housing is open.
Resources required:
@Schuko plug
@Wire end sleeves 0.75 − 2.5 mm²
DANGER!
Mortal danger from electric shock!
Improperly installed or damaged components in the electronics instal-
lation can cause injury.
ð
Ensure that all work on the electrical installation is performed by a
qualified electrician.
ð
Ensure that all work on the electrical installation is performed in a
de-energised state.
ð
Ensure that the power supply is secured with a fault current prote-
ctive circuit.
ð
Replace damaged cables or components without delay.
Perform the following work steps:
1. Fit wire end sleeve to the cable ends if the supply cable does not
have them.
2. Open the device housing.
3. Lead the supply cable through a cable screw connection to the un-
derside of the device.
4. Turn the cable screw connection union nut until the line is fixed in the
screw connection so that the screw connection performs strain relief.
Ensure that the feed cable is installed loosely.
5. Connect the voltage supply to the clamps 44 − 52. Observe the divi-
sion into protective earth (PE), neutral conductor (N) and the phase (L)
on the circuit board.
Fig. 6: Connected voltage supply
ü
Electrically installation
i
Only 3 of 9 clamps are required for connection of the voltage
supply. You can use the free clamps to supply further devices
with voltage.
The contact load rating amounts to max. 4A.

Installation 13
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Multi-Channel Controller TOPAX®MC Operating instructions
7.4 Terminal connection
81 9 2 3 4 5 6 7 10 11121314151617181920
2930313233343536212223242526272837383940
41 42 43 44 45 46 47 48 49 50 51 52
USB
AB
Fig. 7: Overview of terminal connection
Terminal Function Description
1LED output 1 (red) +
5 V with 220 Ω series resistance for LEDs of the water
sampling stations
2LED-output 1 (green) +
3LED output 2 (red) +
4LED-output 2 (green) +
5LED output 3 (red) +
6LED-output 3 (green) +
7LED output 4 (red) +
8LED-output 4 (green) +
9 − 10 LED output GND -Ground for the LEDs
11 Disturbance variable input +0/4 − 20 mA
12 -
13 Analogue output 1 +
0/4 – 20 mA, working resistance max. 500 Ω
14 -
15 Analogue output 2 +
16 -
17 Analogue output 3 +
18 -
19 Analogue output 4 +
20 -
21 − 36 Digital inputs 1 − 8 + (odd numbers)
- (even numbers) Function configurable
37 − 40 Ethernet connection
41 − 43 Alarm relay Clamps 41+42 normal on
Clamps 42+43 normal off
44 − 46
Connection supply voltage
Protective earth (PE)
47 − 49 Neutral line (N)
50 − 52 Phase (L)
Tab. 7: Terminal connection
LED outputs
Input 1
Input 2
Input 3
Input 4
Output 1
Output 2
Output 3
Output 4
Ethernet Digital inputs
0/4 – 20mA
Alarm relay
Voltage
RS485

Installation
14 © Lutz-Jesco GmbH 2020
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Multi-Channel Controller TOPAX®MC Operating instructions
7.5 Connecting sensors
DANGER!
Mortal danger from electric shock!
Live parts can inflict fatal injuries.
ð
Disconnect the external power supply before opening the water
sampling station or the TOPAX®MC controller.
ð
Secure the station to prevent it from being switched on again!
Up to four input modules can be connected to the device. A water param-
eter and the temperature can be measured with every module.
Pre-conditions for actions:
ü
The voltage supply has been disconnected and protected against
re-connection.
ü
The housing is open.
Resources required:
@Sensors
@Suction connection
Perform the following work steps:
1. Lead the cable through one of the cable screw connections on the
underside into the interior of the housing.
2. Connect the wires onto the clamp block of the input modules. Comply
with the terminal plans in the following sections.
ü
Sensor connection completed.
PLEASE NOTE
Electronic distortion of the measurement results.
Incorrect installation of the electrical cables can distort the measure-
ment results.As a result,the control of connected devices can be faulty.
ð
Do not route the connecting cable parallel to the mains and control
connections, and always with a clearance of at least 15cm. Lay
connection junctions at an angle of 90°.
7.5.1 pH Redox module input circuit board
4
3
2
1
Fig. 8: pH Redox module input circuit board
Terminal Function Sensors
1Temperature input Resistance thermometer
TE110/Pt100
2Temperature input
3- (wire with Ø 1.5 mm) pH single-rod measuring
chain PE110/Redox
single-rod measuring chain
ME110
4+ (wire with Ø 2 mm)
Tab. 8: Terminal connection of the pH Redox module input circuit board
Ø 2
Ø 1,5
Fig. 9: Connect the cable from the pH or Redox single-rod measuring chain correctly
7.5.2 Potentiostat module input circuit board
4
3
2
1
5
Fig. 10: Potentiostat module input
Terminal Function Sensors
1Temperature input Resistance thermometer
TE110/Pt100
2Temperature input
3Measuring electrode
3 electrode potentiostat4Counter electrode
5Reference electrode
Tab. 9: Terminal connection of the potentiostat module input circuit board
Centre conductor
Screen

Installation 15
© Lutz-Jesco GmbH 2020
Subject to technical changes.
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Multi-Channel Controller TOPAX®MC Operating instructions
7.5.3 Current module input circuit board
A number of sensors require an operating voltage for their measurement.
These sensors are connected to the current module and supplied with 24
V.
4
3
2
1
5
Fig. 11: Current module input circuit board
Terminal Function Sensors
1Temperature input Resistance thermometer
TE110/Pt100
2Temperature input
3 - - Excess chlorine measuring
cell CS120/conductivity
measuring cell
4
+for CS120**
-for 0/4 − 20 mA Total chlorine measuring cell
GCM/diaphragm-covered
measuring cell Cl 4.1/
diaphragm-covered
measuring cell CD 4 MA*
5 + 24 V DC output
Tab. 10: Terminal connection of the current module input circuit board
* Requires 24 V supply module
**red: +; blue, purple: -
7.5.4 Conductivity module (conductive) input circuit board
79889_1
Bild BA Eingangsmodul Leitfähigkeit
TOPAX MC Salzgehalt
1
2
3
4
Fig. 12: Conductivity module (conductive) input circuit board
Termi-
nal
Function Sensors Wire colour M12
connection cable
1Temperature input
Conductivity
measuring
(conductive),
k=1
black (BK)
2Temperature input blue (BU)
3 Conductivity
measurement input
brown (BN)
4 Conductivity
measurement input
white (WH)
Tab. 11: Clamp connection conductivity module (conductive) input circuit board
DIP switch 0 – 2000 μS/cm 0 – 20 mS/cm 0 – 100 mS/cm
1 OFF ON ON
2 OFF ON ON
3 OFF OFF ON
4 OFF OFF ON
Tab. 12: Selecting the measuring range
7.6 Connecting the actors
Depending on the equipment of the device, you have various possibilities
of actuating actors such as dosing pumps or regulation valves.
7.6.1 Alarm relay
The alarm relay on the main board forwards alarms.
41 42 43
Fig. 13: Alarm relay
Terminal Function Description
41 + 42 normal on The relay works on these
clamps as an opener.
42 + 43 normal off The relay works on these
clamps as a closer.
Tab. 13: Terminal connection of the alarm relay
7.6.2 Output circuit board with relay
4
3
2
1
Fig. 14: Output circuit board with relay
Terminal Function Description
1
Relay X.2 Second digital output
2
3
Relay X.1 First digital output
4
Tab. 14: Clamp connection of the output circuit board with relay
Actors Configuration
MAGDOS dosing pumps On/Off
MEMDOS dosing pumps On/Off
MEMDOS SMART dosing pumps On/Off
MIDIDOS/MINIDOS dosing pumps On/Off
Peristaltic pumps Pulse length
Tab. 15: Actors and relay configuration

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7.6.3 Output circuit board (optocoupler)
4
3
2
1
Fig. 15: Output circuit board with optocoupler
Terminal Function Description
1 +
Optocoupler x 2 Second digital output
2 -
3 +
Optocoupler x 1 First digital output
4 -
Tab. 16: Clamp connection of the output circuit board with optocoupler
Actors Configuration
MAGDOS dosing pumps
Pulse frequencyMEMDOS dosing pumps
MEMDOS SMART dosing pumps
Tab. 17: Actors and configuration optocoupler
7.6.4 Servomotor relay output circuit board
This output is suitable for connecting a servomotor with or without feed-
back via a potentiometer from 1 – 10 kΩ.
3
2
1
6
5
4
Fig. 16: Servomotor relay output circuit board
Terminal Function Description
1 − 2 Opening the regulation
valve Relay output
2 − 3 Closing the regulation valve Relay output
4
Feedback via potentiometer5
6
Tab. 18: Clamp connection of the output circuit board with servomotor relay
Actors Configuration
Chlorine gas control valve C 7700 Servomotor with potentiometer/
servomotor without potentiometer
Tab. 19: Actors and configuration servomotor relay
7.6.5 Output circuit board with servomotor 20 mA
The output connects a servomotor with or without feedback.
Fig. 17: Output circuit board with servomotor 20 mA
Terminal Function Description
1 - GND
2Input (feedback) 4 − 20 mA
3 Output 4 − 20 mA
Tab. 20: Clamp connection of the output circuit board with servomotor 20mA
Actors Configuration
Chlorine gas control valve C 7700 Servomotor with 20 mA/
continuous output (20 mA)
EASYZON chlorine dioxide system
Continuous output (20 mA)
MAGDOS dosing pumps
MEMDOS dosing pumps
MEMDOS SMART dosing pumps
Tab. 21: Actors and configuration servomotor 20 mA
7.6.6 Testing the outputs
You can use manual mode to test the correct connection of an actor.
Take the alarm chain into account before conducting the test and inform
any connection points or interrupt the alarm chain for the period of the
test.
Test the connected actors
Pre-conditions for actions:
ü
The actors have been connected in accordance with section 7.6
“Connecting the actors” on page15.
ü
The device housing cover is closed.
ü
The voltage supply has been established and the device has been
switched on.
Perform the following work steps:
1. Working in the main menu, navigate to “Manual mode” (see section
9.4 “Manual mode” on page28).
4You will now see all the outputs.
2. Select the output to which you have connected the actor and which
you wish to test.
3. Enter a value between 0 and 100 % and check whether the actor re-
acts as desired.
ü
Actor has been tested.
0%
100%
79829_1
Bild BA Ausgangsmodul ATE (20 mA) mit Rückmeldung
EASYCON
3
2
1

Installation 17
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Multi-Channel Controller TOPAX®MC Operating instructions
Testing the analogue outputs
You can also test the connection of terminals 13 to 20.
Pre-conditions for actions:
ü
The device housing cover is closed.
ü
The voltage supply has been established and the device has been
switched on.
Perform the following work steps:
1. Working in the main menu, navigate to System > Outputs > Ana-
logue.
4You will now see all analogue outputs (terminals 13 − 20).
2. Press “Test signal”.
3. Set the mA value.
4. Press "Start”.
ü
Analogue outputs tested.
7.7 Digital inputs
You can use up to 8 digital inputs to evaluate switching statuses and to
detect them as alarm message which are to be documented in the log-
book.
Further information about the settings of the digital inputs can be found in
section 8.2.1.6 “Digital inputs” on page22.
7.8 RC protection for relay
When connecting to the relays, note that inductive loads must be sup-
pressed. If this is not possible, the relay contact on the device terminal
must be protected by an RC protective circuit / interference suppression
element.
If devices with inductive loads from a nominal current of 1 A are connect-
ed to a relay, the contacts in the relay may become bonded. Thus, the de-
vice will operate in an uncontrolled manner. To prevent bonding if the load
circuit suffers a short-circuit, the relays must be protected separately on
the maximum relay switching current.
Pre-conditions for actions:
ü
You would like to connect an inductive load to the relay.
Perform the following work steps:
1. Switch off the device.
2. Clamp the interference suppression element parallel to the inductive
load.
3. Should it prove impossible to perform point 2, clamp the interference
suppression element parallel to the relay output.
ü
RC protection for relay connected.
7.9 Connecting Ethernet
You can use the Ethernet connection for the following actions:
nReading/writing via Modbus TCP/IP protocol (PLC or Computer)
nAccess via web browser
nAccess via TFTP server
The device is fitted with a network input in the form or a 4-pole and
D-coded M12x1 socket. Lutz-Jesco GmbH offers different lengths of spe-
cial twisted-pair network cables to make the typical Ethernet RJ-45 plug
connection. If you use third-party cables, choose a Category 5 cable with
an impedance of 100 Ω or above.
Pin Assignments Wire colours
1 TX- yellow
2 TX+ orange
3 RX- white
4 RX+ blue
- Screen -
Tab. 22: Ethernet connection socket
Fig. 18: Ethernet connection
Installing a wired network
During installation, comply with the following points:
nThe Ethernet is cabled in a star topology. The maximum cable length
is 100 m
nOnly use screened cables and connectors
nOnly use CAT5 cables or better

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Multi-Channel Controller TOPAX®MC Operating instructions
7.10 RS485 interface
Fig. 19: Jumper position on RS485
i
When using multiple devices on a data line you, must activate
a 120 Ω resistance on the last device. You can activate the re-
sistance by setting the jumper to “ON” as shown in Fig. 19
“Jumper position on RS485” on page18.
Your device can have an optional RS485 interface. Using a second data
cable you can connect up to 14 devices with a PC or a PLC. Modbus RTU
protocol serves as a protocol for data transfer. You can use the addresses
1 to 14. The addresses 0 and 15 are reserved for internal purposes and
are not supported.
RS485 Modbus settings:
nBaud rate: 9600
nWord length: 8 Bit
nStop bit: 1 Bit
nParity: None
nYou can read out a maximum of 40 addresses at once.
The list of Modbus commands can be found in section 12 “Modbus ad-
dresses TOPAX® MC” on page39.
Perform the following work steps:
1. Open the device housing.
2. Connect a two-wire cable to terminals A and B of the RS485 module.
3. Connect the device with your network.
ü
Device connected with network.
ON OFF
A B A B

Commissioning 19
© Lutz-Jesco GmbH 2020
Subject to technical changes.
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Multi-Channel Controller TOPAX®MC Operating instructions
8 Commissioning
Outputs
Controller functions Behaviour
Relays
Optocoupler
Servomotor
relay
Servomotor
20 mA
x On/Off nThe output switches if a value is exceeded.
nHysteresis can be set from 0,1 – 50 %
x x Pulse frequency
2-sides pulse frequency
nRelay: 10 – 100 pulses per minute
nOptocoupler: 10 – 350 pulses per minute
nThe pulse frequency is dependant on the control deviation and the set control
parameters.
nWith a control output power of Y = 25 % and a maximum pulse frequency of 100
pulses/min., the controller would output 25 pulses/min.
xPulse length
2-sides pulse length
n0 – 3600 seconds cycle duration
nRelay output (e.g. for solenoid valve)
nDepending on the control deviation and the defined control parameters, the relay
pulls in or drops out for the set cycle duration. If the cycle lasts 30 seconds and the
controller output power is 40 % the relay applies for example for 12 seconds,
followed by 18 seconds of non-application.
xServomotor with a
feedback potentiometer
nA feedback potentiometer can be connected (1 – 10 kΩ) for servomotors with
position feedback.
nCompensate the feedback potentiometer. During compensation, the servomotor is
first started and then stopped automatically.
xServomotor without a
feedback potentiometer
nFor servomotors without feedback.
nMeasure and set the runtime of the servomotor.
xContinuous output nContinuous control output from 0/4 – 20 mA for the actuation of constant actors.
xServomotor with 20 mA
feedback
nServomotors which are controlled via 0/4 – 20 mA and have a 0/4 – 20 mA
position feedback.
Tab. 23: Functions of the individual controllers
8.1 First steps
PLEASE NOTE
Distorting the measurement results
The measurement results of high-impedance sensor inputs may be
distorted in the first 24 hours due to the heat development inside the
housing of the TOPAX®MC controller.
ð
Activate the TOPAX®MC controller 24 hours before start-up.
ð
Factor in the distortion caused by the heat development and only
perform the calibration for the measurement results 24 hours after
activating the TOPAX®MC controller.
You need to make a number of basic settings before operating the device.
This section leads you through initial commissioning.
Pre-conditions for actions:
ü
The device has been installed in accordance with section 7 “Installa-
tion” on page12.
Configuration assistant
With initial commissioning, a configuration wizard will lead you through
the basic settings: Your preferred language, the measured values, control-
ler assignments and switch outputs. With the exception of the language,
the values configured here can only be set in the configuration assistant.
The finer settings are made in the sub-menus.
Working in the configuration assistant, determine the tasks of the in-
stalled modules, the controller and the output modules.
The finer settings such as the behaviour of these modules are made later,
e.g in the “Outputs” menu item.
Perform the following work steps:
1. Set the preferred language and press on the arrow.
2. Measured values: Determine the desired measured value for the in-
stalled input modules. Press the right-hand arrow.

Commissioning
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Multi-Channel Controller TOPAX®MC Operating instructions
3. Controller: You can assign inputs for up to four controllers in this tab.
Select a sensor, a virtual input or a timer. Set the centre row of the
control function (Tab. 23 “Functions of the individual controllers” on
page 19) and press the right-hand arrow. Controllers 1 to 4 must
be assigned to the output modules 1 to 4 in a fixed fashion.
4. Digital outputs: You can assign a function to output modules in this
tab. Only the output modules which are still free are displayed. Press
the right-hand arrow.
5. Confirm the security query with “Yes” to save the configuration.
ü
The configuration assistant has been ended.
i
Start the configuration assistant manually in System > Set-
tings > Configuration > “Configuration assistant”.
8.2 Configuration
The device is set up variably and can be individually adapted to meet your
requirements. As such, it is necessary to adjust the configuration of the
inputs and outputs to the sensors and actors used.
The following section leads you through the device configuration.
8.2.1 Inputs
You can connect up to four sensors (depending on model) for various wa-
ter parameters and the temperature to the device. You can also use up to
eight digital inputs (depending on the version).
8.2.1.1 Sensor inputs
The sensors in the device must be configured individually to enable pre-
cise and error-free measurement of the water parameters. You can per-
form various settings.
Perform the following work steps:
1. In the main menu, navigate from System > Inputs to the “Sensors”
tab.
2. In the “Sensors” tab, configure every connected sensor and state the
following information.
3. Input: Select the input module of the sensor which you wish to con-
figure.
4. Signal: Enter the type of the sensor signal. Depending on the input
module, the signal type has been specified or you can select a signal
type.
5. Measurement: Here, you can check which water parameters are
measured. This setting can only be changed in the configuration as-
sistant.
6. Unit: Select the appropriate unit.
7. Measuring range: If an input field is available, enter the measuring
range of the sensor.
8. Min-alarm: Activate or deactivate the minimum alarm and state a
value under which the alarm will be triggered.
9. Max-alarm: Activate or deactivate the maximum alarm and state a
value over which the alarm will be triggered.
10. Delay: Set a time delay for the “minimum and maximum alarm”.
ü
Configuration of the sensors completed.
8.2.1.2 Temperature inputs
You can connect up to four temperature sensors (depending on the ver-
sion) to the device. This enables you to measure the temperatures at vari-
ous positions.
Perform the following work steps:
1. In the main menu under System > Inputs, navigate to the “Tempera-
ture” tab.
2. In the “Temperature” tab, configure every connected temperature
sensor and state the following information.
3. Measurement: Chose between “On” and “Off”.
4. Min-alarm: Activate or deactivate the minimum alarm and state a
temperature under which the alarm will be triggered.
5. Max-alarm: Activate or deactivate the maximum alarm and state a
temperature over which the alarm will be triggered.
ü
Configuration of the temperature sensors completed.
8.2.1.3 Compensation of cross sensitivities
The water parameters which you measure with the device can be falsi-
fied by interference (e.g. with temperature or pH value).
The device can compensate these interferences automatically.
Perform the following work steps:
1. Working in the main menu under System > Inputs, navigate to the
“Compensation” tab.
2. Working in the “Compensation” tab, configure every sensor connect-
ed for which the measured value is to be compensated and state the
following information
3. Temperature: If it is possible to compensate for the influence of the
temperature, you can select a fixed reference value or one of the four
temperature inputs.
4. pH value: If it is possible to compensate for the pH value error, you
can select a fixed reference value or a sensor input.
ü
Configuration of the compensation completed.