Nolta 70 703215 Operator's manual

EN
Level Control
Manual and
Safety Instructions
11 8021/ 02.2022
Nolta GmbH Ph +49(0)6421/9859 0
Industriestr. 8 Fax [phone]
35091 Cölbe www.nolta.de
Germany [email protected]

General Information
Read this manual before installing and activating this product.
Respect all safety instructions and local laws and regulations.
The installation may only be executed by qualied electricians.
This product may only be used according to its intended use set forth in
this manual.
The following Symbols and hazard statements are used in this operating and assembly
instructions:
Hazard statements Notes
The hazard statements are structured in
the following way:
Danger
Indicates a hazardous situ-
ation which, if not avoided,
will result in death or serious
personal injury.
A blue or grey circle with
a white graphical symbol
indicates that an action must
be taken.
A red or grey circle with a
diagonal bar, possibly with a
black graphical symbol, indi-
cates that an action must not
be taken or must be stopped.
If these instructions are not
observed, it may result in
malfunction or damage to
the equipment.
Warning
Indicates a hazardous situ-
ation which, if not avoided,
could result in death or
serious personal injury.
Caution
Indicates a hazardous situ-
ation which, if not avoided,
could result in minor or
moderate personal injury.
Signal Word
Description of Hazard
Consequence of ignoring the warning.
Action to avoid the hazard.

Technical Data
Switch cycles Max. 30 starts/h
Mech. life span 107 switching cycles
Operating voltage 400 V AC
Operating current 16A / 32A /38A
Rated power AC3/400V Max. 7,5kW / 15kW / 18,5kW
Supply frequency 50 - 60 Hz
Temperature range -20 - +50°C
Protection class IP44
Supply CEE-plug 16A / 32A /63A
Consumer connection CEE-connector 16A / 32A / 63A
Cable entry M20 with sealing insert (2 (3) x 5 mm) or (2 x 6
mm)
Connection for: 1 x external switching contact (potential-free)
Level relay with connection for 1 x oat switch KR2 or
2 x level controller MS1 / M2 or
2 (3) x level elektrode KS1
Housing Polycarbonate (PC)
Dimensions 325 x 145 x 140 mm (L x W x H)
Weight approx. 3 kg / 3,5 kg / 4 kg
Table 1
Technical data for the 7.5 kW / 15 kW / 18.5 kW versions
Disposal
This product or parts of it must be disposed of in an environmentally sound way:
Use the public or private waste collection service. If this is not possible, please contact
your NOLTA dealer.
Intended use
The NOLTA level control is intended for use in industrial and commercial areas in
accordance with the EMC guideline and taking interference emissions into account.
When using the device, the permissible ambient conditions according to the specied IP
protection class and the permissible temperature range must be observed. Special pro-
visions apply to EX zones, areas with an increased risk of re and underground. Mecha-
nical and electrical changes may only be carried out after consulting the manufacturer
and only by certied specialists. All changes to the device must meet the safety require-
ments. The manufacturer assumes no liability for damage resulting from improper use.

Warnings
DANGER
Death or serious personal injury
• The device may only be installed, serviced and commissioned by a
suitably trained specialist taking into account the local regulations
and technical regulations. The „5 safety rules“ must be observed
• Before any intervention or opening of the device, it must be swit-
ched off using the on / off switch, the power supply must be inter-
rupted by pulling the mains plug and secured against being switched
on again
• Maximum current rating must not be exceeded
Attention
• Overcurrent and residual current protective devices must be provided
by the customer
• In automatic mode, the connected consumer can start up at any
time
Notes
• If an external switch contact is connected, the jumper at connections
T1 and T2 must be removed
• Connection of level electrodes or level controllers according to the
enclosed operating instructions for Finder level monitoring relay
72.01
• Installation of a oat switch according to the instructions in the
„Installation“ section - the oat switch used must be suitable for low
voltages
• Setting the level monitoring relay with regard to the sensitivity and
the operating functions of the enclosed operating instructions for
Finder level monitoring relay 72.01
• Only connect suitable cables respectively level controllers, level elec-
trodes or oat switches and observe the maximum cable length
• Never use oils, grease or any kind of solvents, these substances have
negative effects on the plastics rigidity

Installation for typ 70 70....
In automatic mode the level control can be operated via level controllers, level electro-
des or a oat switch, the possible connection options are as follows (take the required
sealing kits and bridge from the enclosed accessory pack):
Connection of level-electrodes in combination with submersible pumps
Insert sealing set with 2 x 5 mm leadthrough in cable entry M20. Connect upper level-
electrode to terminal B1, and lower level-electrode to terminal B2. Connect terminal PE
level controller and terminal B3 with enclosed bridge.
Connection of level-electrodes in combination with dry installed pumps
Insert sealing set with 3 x 5 mm leadthrough in cable entry M20. Connect the upper
level-electrode to terminal B1 and the lower level-electrode to terminal B2. Connect
earth electrode to B3. (please refer to the connection diagrams in the enclosed opera-
ting instructions for nder level-control-relay 72.01)
Connection of level-controllers in combination with submersible pumps or dry
installed pumps
Insert sealing set with 2 x 6 mm leadthrough in cable entry M20. Connect the upper
level-controller (normally open contact) to terminals B1 and B3, connect the lower
levelcontroller (normally open contact) to terminals B2 and B3. Connect PE of both level
controllers to terminal PE level control.
Connection of a oat switch
Insert the connecting cable of the oat switch through the M20 cable entry and con-
nect the normally open contact to terminals B1 and B3, connect PE of the oat switch
to terminal PE level control. The NOLTA KR2 oat switch (order number 40 0035 ..) is
recommended for use with low voltages.
Installation for typ 70 71....
In automatic mode, the level control can be controlled via a oat switch, to do this,
connect the cable ends of the oat switch as follows:
Insert the oat switch cable through the M20 cable entry. Connect the two wires of the
normally open contact to terminals S1 and S2 and the PE to terminal PE level control.

EU Declaration of Conformity
We hereby declare that the Nolta - Niveausteuerung specified below will, due to its design and construction,
comply with the relevant regulations listed.
Product Designation Nolta - Niveausteuerung
Manufacturer Nolta GmbH
Industriestr. 8
35091 Cölbe
EU directives / Harmonized standards /
national techn. Standards - Specifications
Low Voltage Directive 2014/35/EU
Restriction of use of certain hazardous substances in electrical and
electronic equipment (RoHS) – Directive 2011/65/EU & 2015/863/EU
Electromagnetic Compatibility Directive – Directive 2014/30/EU
EN 60204-1:2018 Safety of machinery – Electrical equipment of machines – Part 1:
General requirements
Authorized representative
Name and address
David Loechelt
Nolta GmbH
Industriestr. 8
35091 Cölbe
We confirm that a CE mark according to the European directives is affixed to the above mentioned
Nolta - Niveausteuerung.
29.06.2021................................................ ................................................
Date CEO Head of Quality Management
Dr. Ing J. Knake D. Loechelt
CE-Zertifikat Nolta Niveausteuerung EN Ver 2021-06.docx Ver 2021-06

Circuit diagram for typ 70 70....
processed
level control
Technik +
date
10 76
checked
8 93 4
19.06.2020 Nolta GmbH
Industriestraße 8 35091 Cölbe
2
=
5
T1 T2 B1 B2 B3
(optional)
(optional)
On/Off
manually/ automatic
connection
of level electrodes
or
level controllers
L1 L2 L3 N PE
phase inverter
(optional)
L1 L3 L2
phase sequence
indicator
L1 L2
operating indicator
A1 A2
13 14
1 2
3 4
5 6
L1 L2 L3 N PE
B3 B2 B1
A2A1
12
MAX MIN COM 14
11
Finder 72.01.8.240.0000
1413
13 14
external
switch contact
Attention!
Do not disconnect under
load!
feed
QS
load
Attention!
Do not disconnect under
load!
Motor protection must be
provided via an external
motor protection plug!
Overcurrent protection device in the supply line according to DIN VDE 0113 Part 1 Section 7.2 required.
PE
PE level control

Circuit diagram for typ 70 71....
Blatt
Seite
processed
level control for float switch contection
MARKUS FISCHER +
date
10 76 8 93
1
4
03.04.2020 Nolta GmbH
Industriestraße 8
35091 Cölbe 1
2
=
5
1/
(optional)
(optional)
L1 L2 L3 N PE
Phasenwender
(optional)
L1
L3
L2
L1
L2
A1
A2
13
14
1
2
3
4
5
6
L1L2L3N PE
1413
T2
T1
PE S1 S2
14
13
float switch
Attention!
Do not disconnect under
load!
feed
Overcurrent protection device in the supply
line according to DIN VDE 0113 Part 1 Section
7.2 required.
On/Off
phase sequence
indicator
operating indicator
manually/
automatic
load
Attention!
Do not disconnect under
load!
Motor protection must be
provided via an external
motor protection plug!
external
switch contact
PE
level control

Operation
Rocker switch On/Off
On = level control in operation
Off = level control out of operation
Rocker switch manual/ automatic
In the manual mode, the connected consumer is switched on or off according to the
rocker switch on / off.
In the automatic mode, the connected consumer is switched on or off according to the
function set on the built-in level monitoring relay, depending on the status of the level
electrodes/level controllers or the oat switch connected to B1/B2/B3 (rocker switch on
/ off must be set to on).
External switch contact
An external switching contact (e.g. for an external release or shutdown) can be connec-
ted via terminals T1 and T2.
For integrated phase-sequence test and phase inverter
Red LED ashes up = phase angle incorrect.
The direction of rotation is changed by lightly pressing and turning the pole pins in the
plug.
For integrated operation display
Bright LED lights up = device is operating
On the built-in level relay, the operating function can be switched between lling and
emptying depending on the application - see the enclosed operating instructions for
Finder level monitoring relay 72.01.

Notes