KSB LevelControl Basic 2 Installation instructions

Level Control Unit
LevelControl Basic 2
Installation/Operating Manual

Legal information/Copyright
Installation/Operating Manual LevelControl Basic 2
Original operating manual
All rights reserved. The contents provided herein must neither be distributed, copied, reproduced,
edited or processed for any other purpose, nor otherwise transmitted, published or made available to a
third party without the manufacturer's express written consent.
Subject to technical modification without prior notice.
© KSB SE & Co. KGaA, Frankenthal 2023-02-06

Contents
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LevelControl Basic 2
Contents
Glossary .................................................................................................................................................. 5
1 General.................................................................................................................................................... 6
1.1 Principles ...........................................................................................................................................................6
1.2 Target group.....................................................................................................................................................6
1.3 Other applicable documents............................................................................................................................6
1.4 Symbols .............................................................................................................................................................6
1.5 Key to safety symbols/markings.......................................................................................................................7
2 Safety...................................................................................................................................................... 8
2.1 General..............................................................................................................................................................8
2.2 Intended use .....................................................................................................................................................8
2.3 Personnel qualification and personnel training.............................................................................................8
2.4 Consequences and risks caused by non-compliance with this manual .........................................................8
2.5 Safety awareness ..............................................................................................................................................9
2.6 Software changes .............................................................................................................................................9
3 Transport/Storage/Disposal ................................................................................................................ 10
3.1 Checking the condition upon delivery..........................................................................................................10
3.2 Transport.........................................................................................................................................................10
3.3 Storage............................................................................................................................................................11
3.4 Disposal ...........................................................................................................................................................11
4 Description............................................................................................................................................ 12
4.1 General description ........................................................................................................................................12
4.2 Product information as per Regulation No. 1907/2006(REACH).................................................................12
4.3 Designation.....................................................................................................................................................12
4.4 Name plate......................................................................................................................................................13
4.5 Technical data.................................................................................................................................................14
4.5.1 Technical specifications for sensors.................................................................................................. 14
4.6 Configuration and function...........................................................................................................................16
4.7 Dimensions and weights ................................................................................................................................18
5 Installation at Site................................................................................................................................ 19
5.1 Safety regulations...........................................................................................................................................19
5.2 Checks to be carried out prior to installation...............................................................................................19
5.3 Installing the control unit ..............................................................................................................................19
5.4 Electrical connection ......................................................................................................................................19
5.5 Connecting the pneumatic pressure measuring equipment .......................................................................21
6 Operation.............................................................................................................................................. 22
6.1 Control panel (LevelControl Basic2) .............................................................................................................22
6.1.1 LED display ........................................................................................................................................ 23
6.1.2 Display ............................................................................................................................................... 23
6.1.3 Navigation keys................................................................................................................................. 24
6.2 Manual-0-automatic selector switch .............................................................................................................24
6.3 Service interface .............................................................................................................................................25
6.4 Functions.........................................................................................................................................................27
6.4.1 Displaying measured value parameters........................................................................................... 27
6.4.2 Setting parameters ........................................................................................................................... 29
6.4.3 Alerts and warnings.......................................................................................................................... 32
6.4.4 ATEX mode........................................................................................................................................ 35
7 Application Examples .......................................................................................................................... 36
7.1 Draining via float switches.............................................................................................................................36
7.1.1 Single-pump station: Draining via one float switch ....................................................................... 36
7.1.2 Dual-pump station: Draining via two float switches ...................................................................... 37
7.1.3 Dual-pump station as stand-by pump: Draining via one float switch ........................................... 38

Contents
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7.2 Draining via digital level switches.................................................................................................................39
7.2.1 Single-pump station: Draining via two digital level switches ........................................................ 39
7.2.2 Dual-pump station: Draining via three digital level switches ........................................................ 40
7.2.3 Dual-pump station as stand-by pump: Draining via two digital level switches ............................ 41
7.3 Draining via float switches without hysteresis .............................................................................................42
7.3.1 Single-pump station: Draining via two float switches without hysteresis .................................... 42
7.3.2 Dual-pump station: Draining via three float switches without hysteresis .................................... 43
7.3.3 Dual-pump station as stand-by pump: Draining via two float switches without hysteresis ........ 44
7.4 Draining with pneumatic pressure measurement or bubbler control ........................................................45
7.4.1 Single-pump station: Draining with pneumatic pressure measurement or bubbler control ....... 45
7.4.2 Dual-pump station: Draining with pneumatic pressure measurement or bubbler control ......... 47
7.4.3 Dual-pump station as stand-by pump: Draining with pneumatic pressure measurement or
bubbler control ................................................................................................................................. 48
7.5 Draining via analog sensor 4-20mA .............................................................................................................49
7.5.1 Single-pump station: Draining via analog sensor 4-20mA ............................................................ 50
7.5.2 Dual-pump station: Draining via analog sensor 4-20mA............................................................... 51
7.5.3 Dual-pump station as stand-by pump: Draining via analog sensor 4-20mA ................................ 52
7.6 Filling using float switch(es) ..........................................................................................................................53
7.6.1 Single-pump station: Filling via one float switch............................................................................ 54
7.6.2 Dual-pump station: Filling via two float switches........................................................................... 55
7.7 Filling via analog sensor 4-20mA..................................................................................................................56
7.7.1 Single-pump station: Filling via analog sensor 4-20mA................................................................. 56
7.7.2 Dual-pump station: Filling via analog sensor 4-20mA................................................................... 58
7.8 Additional connections ..................................................................................................................................59
7.8.1 Auxiliary voltage for lifting unit ...................................................................................................... 59
7.8.2 Signalling output .............................................................................................................................. 60
7.8.3 External alarm input ......................................................................................................................... 61
7.8.4 Remote acknowledgement .............................................................................................................. 61
7.8.5 Enable input ...................................................................................................................................... 62
7.8.6 General fault message relay............................................................................................................. 63
8 Commissioning/Start-up/Shutdown................................................................................................... 64
8.1 Commissioning/Start-up.................................................................................................................................64
8.1.1 Prerequisites for commissioning/start-up ........................................................................................ 64
8.1.2 Start-up.............................................................................................................................................. 64
8.2 Shutdown........................................................................................................................................................65
8.2.1 Shutdown .......................................................................................................................................... 65
9 Servicing/Maintenance........................................................................................................................ 66
9.1 Checklist for commissioning/inspection and maintenance ..........................................................................66
9.2 Inserting/replacing the rechargeable battery...............................................................................................67
10 Trouble-shooting.................................................................................................................................. 68
11 Related Documents.............................................................................................................................. 70
11.1 Wiring Diagrams.............................................................................................................................................70
11.1.1 AmaDrainer with control unit type BC............................................................................................ 71
11.1.2 Ama-Porter with control unit type BC............................................................................................. 74
11.1.3 Amarex with control unit type BC ................................................................................................... 76
11.1.4 Amarex N with control unit type BC................................................................................................ 77
11.1.5 Amarex KRT with control unit type BS ............................................................................................ 78
12 UK Declaration of Conformity............................................................................................................. 80
Index ..................................................................................................................................................... 81

Glossary
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Glossary
ATEX
The acronym ATEX is the French abbreviation for
"Atmosphère explosible" and refers to the two
European Union (EU) directives covering the area
of explosion protection: ATEX Equipment Directive
2014/34/EU (also referred to as ATEX95) and ATEX
Workplace Directive 1999/92/EC (also referred to
as ATEX137).
Bubbler control with compressor
The air compressor is integrated in the measuring
system in addition to the pneumatic level
measurement. Condensation can be discharged.
DOL starting
For low power ratings (usually up to 4kW), the
three-phase motor is connected directly to the
mains voltage.
Pneumatic level measurement
Determining the liquid level in the tank by means
of a pressure sensor integrated in the control unit.
Soft starting
Measures taken to limit the output of a power
supply unit or electric motor, to limit the starting
current, and avoid excessive acceleration and
torques.
Star/delta starting
For starting large three-phase squirrel-cage motors
(5.5 kW and above). Prevents voltage dips and
fuses from tripping. Used if direct starting would
result in a high starting current.
Thermal circuit breaker
The thermal circuit breaker or bimetal element
tripping the pump in the event of excessive heat
build-up in the motor is connected to the control
unit. When the thermal circuit breaker opens, the
control unit trips the pump. As the motor cools
down, the thermal circuit breaker closes again. In
the monitoring circuit, also called lower circuit,
the alert is automatically acknowledged after the
motor has cooled down. The pump is operational
again. In the limiting circuit, also called upper
circuit, the alert must be acknowledged manually.

1 General
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1 General
1.1 Principles
This operating manual is valid for the type series and variants indicated on the front
cover.
The operating manual describes the proper and safe use of this equipment in all
phases of operation.
The name plate indicates the type series, the main operating data and the serial
number. The serial number uniquely describes the product and is used as
identification in all further business processes.
In the event of damage, immediately contact your nearest KSB service facility to
maintain the right to claim under warranty.
1.2 Target group
This operating manual is aimed at the target group of trained and qualified specialist
technical personnel.
1.3 Other applicable documents
Table1: Overview of other applicable documents
Document Contents
Pump operating manual Proper and safe use of the pump in all phases of
operation
Wiring diagram Description of electrical connections
Supplementary operating
manual1)
Description of the proper and safe use of
supplementary product components
For accessories and/or integrated machinery components, observe the relevant
manufacturer's product literature.
1.4 Symbols
Table2: Symbols used in this manual
Symbol Description
✓Conditions which need to be fulfilled before proceeding with the
step-by-step instructions
⊳Safety instructions
⇨Result of an action
⇨Cross-references
1.
2.
Step-by-step instructions
Note
Recommendations and important information on how to handle
the product
1If included in agreed scope of supply

1 General
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1.5 Key to safety symbols/markings
Table3: Definition of safety symbols/markings
Symbol Description
!DANGER
DANGER
This signal word indicates a high-risk hazard which, if not avoided,
will result in death or serious injury.
!WARNING
WARNING
This signal word indicates a medium-risk hazard which, if not
avoided, could result in death or serious injury.
CAUTION
CAUTION
This signal word indicates a hazard which, if not avoided, could
result in damage to the machine and its functions.
Explosion protection
This symbol identifies information about avoiding explosions in
potentially explosive atmospheres in accordance with the UK
regulation titled Equipment and Protective Systems Intended for
Use in Potentially Explosive Atmospheres Regulations 2016.
General hazard
In conjunction with one of the signal words this symbol indicates a
hazard which will or could result in death or serious injury.
Electrical hazard
In conjunction with one of the signal words this symbol indicates a
hazard involving electrical voltage and identifies information about
protection against electrical voltage.
Machine damage
In conjunction with the signal word CAUTION this symbol indicates
a hazard for the machine and its functions.

2 Safety
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2 Safety
!DANGER
All the information contained in this section refers to hazardous situations.
In addition to the present general safety information the action-related safety
information given in the other sections must be observed.
2.1 General
▪This operating manual contains general installation, operating and maintenance
instructions that must be observed to ensure safe operation of the system and
prevent personal injury and damage to property.
▪Comply with all the safety instructions given in the individual sections of this
operating manual.
▪The operating manual must be read and understood by the responsible specialist
personnel/operators prior to installation and commissioning.
▪The contents of this operating manual must be available to the specialist
personnel at the site at all times.
▪Information and markings attached directly to the product must always be
complied with and kept in a perfectly legible condition at all times. This applies
to, for example:
– Markings for connections
– Name plate
▪The operator is responsible for ensuring compliance with all local regulations not
taken into account.
2.2 Intended use
The values specified in the technical product literature for the mains voltage, mains
frequency, ambient temperature and motor current must not be exceeded. The
control unit must only be operated in accordance with the instructions provided in
the operating manual and other applicable documents (ðSection1.3,Page6) .
2.3 Personnel qualification and personnel training
All personnel involved must be fully qualified to install, operate, maintain and
inspect the equipment this manual refers to. The responsibilities, competence and
supervision of all personnel involved in installation, operation, maintenance and
inspection must be clearly defined by the operator.
Deficits in knowledge must be rectified by means of training and instruction
provided by sufficiently trained specialist personnel. If required, the operator can
commission the manufacturer/supplier to train the personnel.
Training on the control unit must always be supervised by specialist technical
personnel.
2.4 Consequences and risks caused by non-compliance with this manual
▪Non-compliance with these operating instructions will lead to forfeiture of
warranty cover and of any and all rights to claims for damages.
▪Non-compliance can, for example, have the following consequences:
– Hazards to persons due to electrical, thermal, mechanical and chemical
effects and explosions
– Failure of important product functions
– Failure of prescribed maintenance and servicing practices
– Hazard to the environment due to leakage of hazardous substances

2 Safety
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2.5 Safety awareness
In addition to the safety information contained in this operating manual and the
intended use, the following safety regulations shall be complied with:
▪Accident prevention, health regulations and safety regulations
▪Explosion protection regulations
▪Safety regulations for handling hazardous substances
▪Applicable standards, directives and laws
2.6 Software changes
The software has been specially created for this product and thoroughly tested.
Making changes or additions to the software or parts of the software is prohibited.
This does not, however, apply to software updates supplied by KSB.

3 Transport/Storage/Disposal
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3 Transport/Storage/Disposal
3.1 Checking the condition upon delivery
1. On transfer of goods, check each packaging unit for damage.
2. In the event of in-transit damage, assess the exact damage, document it and
notify KSB or the supplying dealer and the insurer about the damage in writing
immediately.
3.2 Transport
CAUTION
Improper transport
Damage to the device!
▷Always transport the device properly and in its original packaging.
▷For transport, observe the transport instructions on the original packaging.
▷Do not throw the device.
1. Upon receipt, unpack the device and check for in-transit damage.
2. Report any in-transit damage to the manufacturer immediately.
3. Dispose of packaging material in accordance with local regulations.

3 Transport/Storage/Disposal
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3.3 Storage
CAUTION
Damage during storage due to humidity, dirt or vermin
Corrosion/contamination of the control unit!
▷For outdoor storage cover the (packed or unpacked) control unit and
accessories with water-proof material.
If the ambient conditions for storage are met, the function of the control unit is
safeguarded even after a prolonged period of storage. If properly stored indoors, the
equipment is protected for a maximum of 12months.
▪Store the control unit in dry, vibration-free conditions and, if possible, in its
original packaging.
▪Store the control unit in a dry room at constant atmospheric humidity.
▪Prevent excessive fluctuations in atmospheric humidity.
Table4: Ambient conditions for storage
Ambient condition Value
Relative humidity Max. 85% (no condensation)
Ambient temperature -10°C to + 70°C
3.4 Disposal
Electrical or electronic equipment marked with the adjacent symbol must not be
disposed of in household waste at the end of its service life.
Contact your local waste disposal partner for returns.
If the used electrical or electronic equipment contains personal data, the operator is
responsible for deleting it before the equipment is returned.
NOTE
Due to certain components it contains, the device is classified as special waste and
meets RoHs 2011/65/EC requirements.
Once decommissioned, the device must be properly disposed of in accordance with
local regulations.

4 Description
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4 Description
4.1 General description
▪Level-dependent control unit with display for controlling and monitoring either 1
or 2 pumps.
▪Control unit for tank drainage and tank filling2).
▪ATEX-compliant version for pumps in potentially explosive atmospheres.
Installation of the control unit outside the potentially explosive atmosphere.
4.2 Product information as per Regulation No. 1907/2006(REACH)
For information as per European chemicals regulation (EC) No. 1907/2006 (REACH)
see https://www.ksb.com/en-global/company/corporate-responsibility/reach.
4.3 Designation
Example: BC 2 400 D F N O 100
Table5: Designation key
Code Description
LevelControl Type series
BC Type
BC Basic Compact (plastic housing)
BS Basic control cabinet (sheet steel housing)
2 Number of pumps
1 Single-pump lifting unit
2 Dual-pump lifting unit
400 Voltage, number of wires
230 230V, 3-wire connection
400 400V, 4-wire connection / 5-wire connection
D Starting method
D DOL starting up to 4 kW3)
S Star-delta starting up to 30kW3)
W Soft start
X 3-wire connection capacitor motor 25µF
Y 3-wire connection capacitor motor 40µF
Z 3-wire connection capacitor motor 40µF, start capacitor 66µF
F Sensors
F Float switch
P Pneumatic level measurement 3.5m
M Pneumatic level measurement 10.5m
L Bubbler control 2m
H Bubbler control 3m
U Analog input 4-20mA
V Voltage input 0.5-4.5V
D Digital level switch
N ATEX
N Without ATEX functions
E With ATEX functions
O Installation variants
2Using float switches, digital level switches or 4-20mA analog sensors
3Higher ratings on request.

4 Description
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Code Description
O O Standard
A With rechargeable battery
M With motor protection switch (if not included in standard version)
N With rechargeable battery and motor protection switch (if not
included in standard version)
P With PTC relay (if not included in standard version; standard for
5.5kW and above)
Q With rechargeable battery and PTC relay (if not included in
standard version; standard for 5.5kW and above)
R Without PTC relay for versions > 4kW (standard for 5.5kW and
above)
S Without PTC relay for versions > 4kW (standard for 5.5kW and
above), with rechargeable battery
100 Nominal current
010 1,0A
016 1,6A
025 2,5A
040 4,0A
063 6,3A
100 10A
140 14A
180 18A
230 23A
250 25A
400 40A
630 63A
> 63A available on request
4.4 Name plate
1
2
3
4
5
6
7
ZNI 1448xa
2022w18
BD706005
BC2400DFNO100
IP 54
Made in Germany
Ue: 3/N/PE/AC 400 V 50 HZ
Ie: 6,3 - 10,0 A
LevelControl Basic 2
Johann-Klein-Straße 9
Deutschland
67227 Frankenthal
KSB SE & Co. KGaA
19073778
Fig.1: Name plate (example)
1 Type series 5 Circuit diagram number
2 Product code 6 Year of construction / calendar week
3 Nominal voltage 7 Enclosure
4 Nominal current

4 Description
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4.5 Technical data
NOTE
LevelControl Basic 2 can only be used with TN mains and TT mains as standard.
On request, special versions can be supplied for IT mains.
Table6: Technical data
Characteristic Value
Type Basic Compact (BC) Type Basic Control Cabinet (BS)
Nominal operating
voltage
U [VAC] 3~400: +10 %-15 %
1~230: +10 %-15 %
Mains frequency F [Hz] 50 / 60Hz ± 2%
Nominal insulation
voltage
U [VAC] 500
Nominal current per
motor
I [A] 1 to max. 10 1 to max. 63
Rated power per motor P [kW] DOL starting:
up to max. 4
DOL starting / star-delta starting:
0.35 to 30
Enclosure IP54
Material Plastic (polycarbonate)
Colour: RAL 7035, light grey
Sheet steel
Colour: RAL 7035, light grey
Operating temperature T [°C] -10 to +50
Bearing temperature T [°C] -10 to +70
4.5.1 Technical specifications for sensors
4 float switches/ digital level switches, 12-25.2VDC or 230VAC
For ATEX with float switches:
▪ATEX-compliant versions in BS housing
▪Single-pump station: 2 intrinsic safety barriers, type Stahl 9002/13-280-093-001
▪Dual-pump station: 3 intrinsic safety barriers, type Stahl 9002/13-280-093-001
For ATEX with digital level switches (selected via KSB EasySelect):
▪ATEX-compliant versions in BS housing
▪Single-pump station: incl. 3 intrinsic safety barriers, type Stahl
9002/13-280-093-001
▪Dual-pump station: incl. 4 intrinsic safety barriers, type Stahl 9002/13-280-093-001
4 - 20 mA
▪2-wire connection and 3-wire connection
▪Input resistance ≤ 300Ω
▪ATEX-compliant versions in BS housing
▪For ATEX-compliant version incl. 1 intrinsic safety barrier, type Stahl
9002/13-280-110-001
Integrated pneumatic pressure sensor
▪For open pressure bell or closed pressure bell
▪Up to 3metres of water
▪Optional: up to 10metres of water

4 Description
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Integrated pressure sensor with compressor for bubbler control
▪For open pressure bell
▪Compressor up to 2metres of water
▪Optional: up to 3metres of water
Motor protection sensors
▪Maximum of two (thermal circuit breaker) bimetal switches for each pump, 24V,
motor monitoring
▪From 5.5kW star-delta starting: PTC thermistor for motor monitoring for each
pump (optionally available for <5.5kW)4)
▪Max. one leakage monitor for each Amarex / Amarex N / AmarexKRT pump
Process inputs
▪1 external alarm input, 24V
▪1 remote acknowledgement, 24V
Process outputs
▪1 volt-free signalling output changeover contact (250V, 1A, NO/NC contact)
▪1 signalling output (12.6 to 13.2V, max. 200mA), e.g. for connecting a horn,
alarm combination or alarm strobe light (12V)
Rechargeable battery
Connection for rechargeable battery, for mains-independent power supply of:
▪Electronics
▪Sensors
▪Alarm equipment
Battery life:
▪Approx. 10hours when supplying the integrated piezo buzzer 85dB(A),
electronics, and sensors
▪Approx. 4hours when supplying external alarm equipment (e.g. horn, alarm
combination, or alarm strobe light)
Charging time:
▪Approx. 11hours (if rechargeable battery is fully discharged)
4Not for installation variants R and S

4 Description
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4.6 Configuration and function
Type Basic Compact (BC)
2
3
1
Fig.2: Type Basic Compact (BC)
1 Control panel 3 Manual-0-automatic selector switch
2 Master switch (optional)
▪Pump control and monitoring unit in compact plastic housing
▪For either one or two pumps
▪With display
▪Level detection via:
– Float switches/digital level switches
– Analog sensor (4-20mA)
– Integrated pressure sensor (pneumatic)
– Special version: with bubbler system up to 2 metres of water (no further
built-in components possible)
▪DOL starting
Type Basic Control Cabinet (BS)
1
2
3
Fig.3: Type Basic Control Cabinet (BS)
1 Master switch 3 Manual-0-automatic selector switch
2 Control panel
▪Pump control and monitoring unit in sheet steel housing
▪For either one or two pumps
▪With display
▪Level detection via:
– Float switches/digital level switches
– Analog sensor (4-20mA)

4 Description
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– Integrated pressure sensor (pneumatic or bubbler control)
▪DOL starting or star-delta starting
ATEX devices
NOTE
The control units are not explosion-proof, and therefore must only be operated
outside potentially explosive atmospheres.
Both variants (types BC and BS) are available as ATEX versions for pumps to be used
in potentially explosive atmospheres. In ATEX mode, the pump is reliably prevented
from being activated, depending on the after-run period, if the fluid level drops
below the minimum level (to prevent dry running and, therefore, sources of
ignition). This also applies to manual mode or forced start-up via a telecontrol
system.
The control unit is installed outside the potentially explosive atmosphere.

4 Description
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4.7 Dimensions and weights
Table7: Dimensions and weights
Type Nominal current per
pump
H×W×D [kg]
max.
[A] [mm]
BC 10 400 × 281 × 135 4,5 - 4,7
BS1 10 400 × 300 × 155 12
BS15) 10 600 × 400 × 200 12
BS1 14 600 × 400 × 200 20
BS1 18 600 × 400 × 200 20
BS1 23 600 × 400 × 200 20
BS1 25 600 × 400 × 200 20
BS1 40 800 × 600 × 200 30
BS1 63 800 × 600 × 200 30
BS2 10 400 × 300 × 155 13
BS25) 10 600 × 400 × 200 13
BS2 14 800 × 600 × 200 30
BS2 18 800 × 600 × 200 30
BS2 23 800 × 600 × 200 30
BS2 25 800 × 600 × 200 30
BS2 40 800 × 600 × 200 33
BS2 63 800 × 600 × 200 33
5ATEX-compliant version with float switch or digital switch

5 Installation at Site
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5 Installation at Site
5.1 Safety regulations
DANGER
Incorrect installation
Danger to life!
▷The control unit must be installed in a flood-proof location.
▷Never install the control unit in potentially explosive atmospheres.
▷Integration in external control system: observe the directives for low-voltage
switchgear and controlgear assemblies.
5.2 Checks to be carried out prior to installation
NOTE
Contact the manufacturer if the product is to be used under conditions other than
those stated above.
Before beginning with the installation check the following:
▪The data on the control unit name plate has been checked. The control unit must
be suitable for operation on the available power supply network.
▪The place of installation is dry.
▪The place of installation is frost-free.
▪The place of installation is protected against flooding.
▪The place of installation is well-ventilated.
▪The place of installation is not potentially explosive.
▪The specified ambient conditions are met.
Table8: Ambient conditions
Characteristic Value
Temperature during operation -10°C to +50°C
Relative humidity Non-condensing
Installation altitude 1000 m above MSL (max.)
5.3 Installing the control unit
The control unit must be handled with care to prevent damage to the components.
üThe place of installation meets the requirements indicated.
1. Remove the control unit from its original packaging.
2. Install the control unit on a stable base (e.g. wall, bracket, etc.).
5.4 Electrical connection
DANGER
Unintentional contact with live parts
Danger of death from electric shock!
▷De-energise the mains connection.
▷Take steps to ensure that the mains connection cannot be re-energised
unintentionally.

5 Installation at Site
20 of 84 LevelControl Basic 2
4041.807/01-EN
CAUTION
Nominal current of the pump too high
Damage to the control unit!
▷Do not exceed the nominal current.
CAUTION
Improper electrical connection
Damage to the control unit/ control cabinet!
▷Check the type of current and voltage of the mains.
▷For connecting pump power cables with flexible cores, attach wire end sleeves
to the core ends that are to be connected to the control unit.
▷Observe the wiring diagrams..
Lightning protection
▪Electrical installations must be protected against overvoltage (binding since
14December2018) (see DIN VDE 0100-443 (IEC 60364-4-44:2007/A1:2015,
modified) and DIN VDE 0100-534 (IEC 60364-5-53:2001/A2:2015, modified)).
Whenever modifications are made to existing installations, retrofitting a surge
protective device (SPD) in accordance with VDE is mandatory.
▪The associated lightning protection concept must be provided by the operator or
by a suitable provider commissioned by the operator. Surge protective devices
can be found in the extended accessories range (type series booklet 4041.51) as
optional control unit components.
Indoor installation:
▪A maximum cable length of 10metres should not be exceeded between the
surge protective device (usually type 1, internal lightning protection) installed at
the service entrance and the equipment to be protected. For longer cables,
additional surge protective devices (type 2) must be provided in the sub-
distribution board upstream of the equipment to be protected or directly in the
equipment itself.
▪Sensor cables that cross the boundaries between lightning protection zones must
be additionally protected by suitable surge protective devices (e.g. when using a
4-20mA immersion probe).
Outdoor installation:
▪Control units installed outdoors (e.g. in outdoor cabinets) should always be
equipped with Type 1 surge protective devices (lightning protection), as they will
not normally be protected by a suitable upstream service entrance SPD.
Electrically connecting the control unit
üThe mains voltage matches the nominal voltage specified on the name plate.
1. Route the cables through the cable glands.
2. Make sure that the sealing elements are properly positioned. Tighten the cable
glands (strain relief).
3. Connect the control unit/cabinet in accordance with the wiring diagram
(ðSection11.1,Page70) and in line with the application.