Wittenstein Alpha LUC+125 User manual

1000088472 Revision: 01
Lubricator
LUC
+125 impulse-controlled
Operating manual

LUC+125 impulse-controlled
1000088472 Revision: 01
Sales department
WITTENSTEIN alpha GmbH
Walter
-Wittenstein-Straße 1
D
-97999 Igersheim
Germany
Customer Service department
In the event of technical
questions, contact the following address:
Copyright
© WITTENSTEIN alpha GmbH 2022
reserves all rights for layout and corporate design.
© DLS Schmiersysteme GmbH 2022
reserves all rights for content and text.
This documentation is protected by copyright
.
WITTENSTEIN alpha GmbH
and DLS Schmiersysteme GmbH reserve all rights to photo-
mechanical reproduction, copying, and the distribution by special processes (such as computers,
file media, data networks), in whole or in part.
Subject to technical and
content changes without notice.

LUC+125 impulse-controlled
Revision: 01 1000088472 en-1
Table of contents
1About this manual .............................................................................................................................3
1.1 Information symbols and cross references...................................................................................3
1.2 Scope of delivery..........................................................................................................................3
2Safety..................................................................................................................................................3
2.1 EC/EU Directive............................................................................................................................3
2.2 Personnel .....................................................................................................................................3
2.3 Intended use.................................................................................................................................4
2.4 Reasonably foreseeable misuse ..................................................................................................4
2.5 Guarantee and liability..................................................................................................................4
2.6 General safety instructions...........................................................................................................5
2.7 Structure of warning instructions..................................................................................................5
2.7.1 Safety symbols......................................................................................................................5
2.7.2 Signal words..........................................................................................................................6
3Description of the lubricator.............................................................................................................7
3.1 Overview of lubricator components ..............................................................................................7
3.2 Name plate and labeling...............................................................................................................7
3.3 Marking.........................................................................................................................................8
3.4 Ordering codes.............................................................................................................................8
3.5 Dimensions...................................................................................................................................8
3.6 Scope of delivery..........................................................................................................................8
3.7 Technical data..............................................................................................................................9
3.8 Lubricants...................................................................................................................................10
3.9 Cord lengths...............................................................................................................................10
4Transport and storage.....................................................................................................................10
4.1 Transport....................................................................................................................................10
4.2 Storage.......................................................................................................................................10
5Assembly..........................................................................................................................................11
5.1 Preparations...............................................................................................................................11
5.2 Mounting the lubricator...............................................................................................................11
5.3 Connecting the prefilled hose.....................................................................................................12
5.4 Electrical interface connection....................................................................................................12
6Startup and operation .....................................................................................................................13
6.1 Switching on the lubricator .........................................................................................................13
6.2 Operation and settings ...............................................................................................................13
6.2.1 General................................................................................................................................13
6.2.2 Factory settings...................................................................................................................14
6.2.3 Default settings in impulse mode ........................................................................................14
6.3 Menu and display messages......................................................................................................14
6.4 Error messages..........................................................................................................................15

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7Input and output signals – external control system (PLC) ......................................................... 17
7.1 Pin assignment – external control system (PLC)....................................................................... 17
7.2 Input signals – external control system (PLC) ........................................................................... 18
7.2.1 2-second control signal.......................................................................................................19
7.2.2 3-second control signal.......................................................................................................21
7.2.3 12-second control signal.....................................................................................................23
7.2.4 10-second control signal.....................................................................................................25
7.3 Output signals / Display messages – external control system (PLC) ........................................ 26
7.3.1 Error E1 (empty cartridge) – external control system (PLC)............................................... 27
7.3.2 Error E2 (cartridge error) – external control system (PLC)................................................. 29
7.3.3 Error E3 (undervoltage) – external control system (PLC)................................................... 30
7.3.4 Error E4 / E5 (fatal error) – external control system (PLC)................................................. 31
7.3.5 Error E7 (overload) – external control system (PLC).......................................................... 32
8Maintenance and disposal ............................................................................................................. 33
8.1 Maintenance schedule............................................................................................................... 33
8.1.1 Visual inspection.................................................................................................................33
8.1.2 Cleaning .............................................................................................................................33
8.1.3 Cartridge change................................................................................................................ 34
8.2 Recommissioning ......................................................................................................................35
8.3 Disposal..................................................................................................................................... 35
9Appendix.......................................................................................................................................... 36
9.1 EC/EU declaration of conformity................................................................................................ 36

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1 About this manual
This manual contains information which is necessary for the safe use of the LUC+125
(FlexxPump 125), version 24 V-DC (impulse-controlled), hereinafter referred to as lubricator.
If this manual is supplied with amendment sheets (e.g. for special applications), then the
information in the amendment is valid. Contradictory specifications in this manual are therefore
void.
The user should contact WITTENSTEIN alpha GmbH with any questions about special
applications. The actual operator must guarantee and ensure that this manual including any
amendments are read and understood by all persons assigned to install, operate, or maintain the
lubricator. For this reason, keep this manual in a suitable and ideally accessible location near the
lubricator.
Inform colleagues who work in the area around the machine about the safety instructions so that
no one sustains injuries.
The original was written in German, all other language versions are translations of the original
manual.
1.1 Information symbols and cross references
The following information symbols are used:
•Indicates an action to be performed
ÜIndicates the results of an action
iProvides additional handling information
A cross reference refers to the chapter number and the header of the target section (e.g.
2.3 "Intended use").
A cross reference to a table refers to the table number (e.g. Table "Tbl - 1").
1.2 Scope of delivery
•Check the completeness of the delivery against the delivery note.
iImmediately notify the carrier, the insurance company, or WITTENSTEIN alpha GmbH in
writing of any missing parts or damage.
2 Safety
This manual, especially the safety instructions and the rules and regulations valid for the
operating site, must be observed by all persons working with the lubricator. General legal rules
and regulations as well as applicable rules and regulations on prevention of accidents [e.g.
personal protective equipment (PPE)] and environmental protection must be observed.
2.1 EC/EU Directive
In scope of the EC/EU Directive, commissioning (recommissioning) of a machine at which the
lubricator was installed and/or attached is prohibited until it is verified that the machine complies
with all provisions of the applicable regulation.
An EC/EU declaration of conformity for this lubricator can be found in the appendix (see
chapter 9.1 "EC/EU declaration of conformity").
2.2 Personnel
Only technicians who have read and understood this operating manual may perform work on the
lubricator. Local and/or company regulations apply accordingly.

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2.3 Intended use
For the intended use of the lubricator, the following points must be observed:
- The lubricator is approved only for industrial applications.
- The lubricator may only be put into operation according to the technical specifications (see
chapter 3.7 "Technical data").
- Unauthorized modifications to the lubricator are not permitted.
- Read and observe the operating manual.
- During operation of the lubricator, regular visual inspections must be carried out at the
lubricator itself as well as the lubrication point. Any irregularities and their cause must be
corrected immediately.
- The cartridge must not be refilled.
- The lubricator must not be opened or dismantled.
- Only lubricants which are approved by WITTENSTEIN alpha GmbH may be used.
- Applicable rules and regulations on occupational safety, prevention of accidents and
environmental protection must be observed.
- Any works or tasks with or at the lubricator may only be carried out with authorization (see
chapter 2.2 "Personnel").
Any use other than the previously described intended use or non-compliance with one of the
points specified above is regarded misuse. In this case no liability or warranty claims will be
assumed.
2.4 Reasonably foreseeable misuse
Any usage of the lubricator that exceeds the maximum permitted technical data is considered
misuse and is therefore prohibited.
2.5 Guarantee and liability
Any guarantee and liability claims are excluded for personal injury and/or material damage in
case of:
- Ignoring the information on transport and storage;
- Misuse;
- Improper or not carried out maintenance and repair;
- Incorrect assembly / disassembly or incorrect operation;
- Operation of the lubricator when safety devices and equipment are defective;
- Operation of the lubricator without lubricant;
- Operation of the lubricator with non-approved lubricant;
- Operation of a heavily contaminated lubricator;
- Modifications or changes without written approval by WITTENSTEIN alpha GmbH;
- Opening and/or partly or complete dismantling of the lubricator.

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2.6 General safety instructions
The operation of the lubricator involves remaining risks even when adhering to the intended use.
Defective or faulty electrical connections or unapproved, current-carrying components can
cause serious injuries and even death.
•Have all electrical connection work performed by qualified technicians only.
•Immediately replace damaged cords or plugs.
Loose or overtightened screw connections can cause damage to the lubricator:
•Mount and check all screw connections according to the specified admissible tightening
torques. Use a calibrated torque wrench.
Lubricants are flammable, can cause skin irritation, and can contaminate soil and water:
•In case of fire, do not use a jet of water to extinguish.
•In case of fire, only use suitable extinguishing agents such as powder, foam or carbon
dioxide.
•Always observe the applicable safety instructions by the lubricant manufacturer on the safety
data sheet of the used lubricant.
•Use protective gloves to avoid direct skin contact with lubricants.
•Use and dispose of lubricants properly.
2.7 Structure of warning instructions
Warning instructions are situation-specific. They will
be precisely where tasks are d
escribed in which
dangers can arise.
The warning instructions in this manual are
designed according to the following pattern:
A
= safety symbol
B
= signal word
C
= Type and consequence of the danger
D
= Avoiding the danger
2.7.1 Safety symbols
The following safety symbols are used to indicate hazards, prohibitions and important
information:
General danger Electric voltage Flammable Environment
AB
CD

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2.7.2 Signal words
This signal word indicates an imminent danger that will cause
serious injuries or even death.
This signal word indicates a potential hazard that could cause
serious injuries and even death.
This signal word indicates a potential hazard that could cause minor
or serious injuries.
This signal word indicates a potential hazard that could lead to
property damage.
NOTICE
CAUTION
WARNING
DANGER

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3 Description of the lubricator
The lubricator is designed as a highly compact double piston pump for grease as lubricant. The
two pistons run force-controlled and in opposing directions. They are both connected to the same
outlet. The outlet is secured by an integrated check valve. At each dispensing cycle , approx.
0.15 cm³ of lubricant are dispensed. Multiple subsequent dispensing processes can be set.
The lubricator must be integrated in an external control system (e.g. PLC). The lubricator features
an electrical interface for control. By means of output signals, the lubricator also enables remote
monitoring for querying of the status and any potential error messages (e.g. empty cartridge). The
lubricator is controlled via various input signals processed by microelectronics to ensure ideal
supply of lubricants to lubrication points.
The different operating statuses are displayed at the front as well as other additional information
(e.g. errors).
3.1 Overview of lubricator components
Pos.
Designation
1
LUC+125, 24 V impulse-controlled
2
Exchange cartridge LUE+125
3
Assembly bracket
4
Interface M12x1, 4-pole
5
Magnetic pen (in holder)
6
Hose connection
7
Action field
8
Display
9
Name plate
10
CE symbol
Tbl - 1 Overview of lubricator components
3.2 Name plate and labeling
Pos.
Designation
A
Material number
B
Ordering codes (see chapter 3.4 "Ordering codes")
Tbl - 2 Name plate
1
8
7
2
3
4
5
6
9
10
Mat-No: xxxxxxxx
LUC+125-xxxx-xx
A
B

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3.3 Marking
The CE mark is attached to the lubricator housing. The position of the CE mark is described in
chapter 3.1 "Overview of lubricator components".
Manufacturer
DLS Schmiersysteme GmbH
Gewerbering 5
82140 Olching, Germany
Tel.: [phone]
Fax: [phone]
Email: [e-mail]
www.DLS-Schmiersysteme.de
3.4 Ordering codes
3.5 Dimensions
Dimensions can be found
- in our catalog,
- under www.wittenstein-alpha.de.
CAD data and dimension sheets are available upon request.
3.6 Scope of delivery
The lubricator is available in different versions. They can be distinguished by the execution, the
lubricant filling as well as the included accessories.

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3.7 Technical data
Housing
Dimensions without cartridge
83 x 96 x 85 (W x H x D)
mm
Dimensions with cartridge 125 cm3
83 x 154 x 85 (W x H x D)
mm
Dimensions with cartridge 250 cm3
83 x 188 x 85 (W x H x D)
mm
Weight (without cartridge)
approx. 350
g
Assembly option
Assembly bracket with slotted
holes pre-assembled.
Bottom side: IG M5 (3 Nm)
Mounting position
vertically
Housing material
PA 6.6 GF30 / POM
Outlet material
Stainless steel
Operating temperature *
0 ... +60
°C
Lubricant and hydraulics
Cartridge volume
125 or 250
cm3
Lubricant properties
Grease up to NLGI, class 2
No. of outlets
1
Hydraulic connection
PA hose
Number of lubrication points
Up to 8 in combination with
aluminum progressive
distribution **
Max. pressure
50 (-10%/+15%)
bar
Dispensed volume
Per stroke 0.15 (-5%)
cm3
Electrics
Display
Display
Operating voltage (DC)
24 (20V...28V)
V
Fuse protection
0.75 (slow)
A
Protection class
IP 54
Power consumption
I
max
< 0.3 I
bias
< 0.025
A
For further information on the electrical system, see chapter 7 "Input and output signals –
external control system (PLC)"!
* Depending on the lubricant used
* The specified value depends on the actual application and may deviate in individual cases
depending on the used lubricant and other conditions.
Tbl - 3 Technical data

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3.8 Lubricants
Only use lubricants approved by WITTENSTEIN alpha GmbH in dedicated original cartridges
exclusively developed for the lubricator.
The lubricants used depend on the individual application. The
respective designation can be found on the label of the cartridge.
For further information about lubricants, documentation and safety data sheets, please contact
WITTENSTEIN alpha GmbH directly.
3.9 Cord lengths
In general, the lubricator should be installed as closely as possible to the device to be supplied
(lubrication point). Ideally, this should be directly at the lubrication point. If this is not possible due
to space restrictions or reasons regarding accessibility, cords can be used between the lubricator
and the lubrication point (e.g. distribution).
The maximum hose length depends on the temperature as well as the used grease, hoses and
accessories.
4 Transport and storage
The lubricator is delivered in an outer packaging (cardboard box) and with a lubricant cartridge
and other accessories in the same shipment. For protection against humidity and dirt, it is
additionally packaged in PE foil. To prevent leakage of the prefilled lubricant from the lubricator,
protective caps are installed at the lubricant inlet and outlet.
Dispose of the packaging materials at the recycling sites designated for this purpose in
compliance with applicable national and operational regulations.
After receipt of the lubricator, check the completeness of the delivery against the delivery note.
Immediately notify the carrier, the insurance company, or WITTENSTEIN alpha GmbH in writing
of any potentially missing parts or damage.
4.1 Transport
Hard shocks, for instance because of falling or hard dropping, can
damage the lubricator.
•Do not throw the lubricator.
4.2 Storage
Store the lubricator in its original packaging in vertical position under dry, frost-protected
conditions at an ambient temperature of +5°C to +30°C. The maximum unopened storage time is
2 years.
For storage logistics, the "First-In-First-Out principle" (FiFo) is recommended.
NOTICE

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5 Assembly
The lubricator is delivered with an inserted lubricant cartridge in vented condition as a ready-to-
install component with an installed assembly bracket. The outlet is sealed with a yellow cap.
The provided hose lines have already been prefilled with the respective lubricant.
5.1 Preparations
Among other things, compressed air can lead to damage to the seals
of the lubricator and to contamination of the lubricator or lubricant by
dirt and particles.
•Do not use compressed air.
•Make sure that the assembly location is not considerably
contaminated.
5.2 Mounting the lubricator
•Observe the safety and processing instructions for the threadlocker
to be used.
•Apply threadlocker (e.g. LOCTITE®243) to the
fastening screws [K].
•
Install the lubricator with the pre-assembled
assembly brackets [3] at the intended position.
The slotted holes enable fine adjustment of the
installation height.
i
The prescribed screw sizes and tightening
torques can be found in the table "Tbl - 4".
Hole spacing
[mm]
Quantity x diameter
[ ] x [mm]
For screw size /
property class
Tightening torque
[Nm]
95
2 x 6.6
M6 / 8.8
9.0
Tbl - 4 Through-holes in assembly bracket
K
3
NOTICE

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5.3 Connecting the prefilled hose
•Remove the yellow closing cap.
•
Screw in the provided hose connection [6].
iMax. tightening torque 2 Nm.
•
Establish the hydraulic connection between the
distributor and the lubricator [6]. Ensure that
hoses and connection elements are tight and
properly assembled.
i
If possible, use the prefilled hoses included in
the scope of delivery with the respective
lubricant!
iFurther important instructions on how to connect the hose can be found in the separate
manual "Prefilled high pressure hose" (doc. no. 2098-D072334). The manual is included in
the scope of delivery of the hose or is available on request from WITTENSTEIN alpha
GmbH. Always state the material number when doing so.
5.4 Electrical interface connection
Defective or faulty electrical connections or unapproved, current-
carrying components can cause serious injuries and even death.
•Have all electrical connection work performed by qualified technicians
only.
•Immediately replace damaged cords or plugs.
•Observe the five safety rules of electrical engineering before starting
electrical installation work:
- Switch off the power supply.
- Secure against unintended reactivation.
- Check that there is no voltage.
- Ground and short-circuit.
- Cover adjacent and electrified parts.
•Connect the lubricator [1] to the external power
supply or control system with a suitable
connection cord [J] via the M12x1 interface [4]
at the bottom of the lubricator.
i
Depending on the application, connection cords
with straight or angled socket can be used.
i
For the properties of the connection cable,
please refer to chapter 7.1 "Pin assignment –
external control system (PLC)".
6
J
1
4
DANGER

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6 Startup and operation
•Read the general safety instructions before beginning to work (see chapter 2.6 "General
safety instructions").
•Make sure that the lubricator is properly and fully assembled. In particular, the power supply
must be connected, and a lubricant cartridge must be attached.
6.1 Switching on the lubricator
•Hold the magnetic pen against the action field
[7].
Ü
The LED flashes red three times.
•
Immediately remove the magnet pen when On
is displayed.
Ü
The firmware information is displayed.
Ü
The lubricator flashes, is in operation and PAU
is displayed.
The lubricator is supplied from the factory in a
vented state. If it is necessary to vent further, a
detailed description on this can be found in chapter
7.2.3
"12-second control signal". Afterwards, the
lubricator executes a specific number of strokes to
convey the lubricant from the cartridge to the outlet.
6.2 Operation and settings
6.2.1 General
What you should know about operation and setting of the lubricator:
- The lubricator is designed as an individual lubricator for one lubrication point. Depending on
the actual application case, however, the lubricator can also be used for reliable grease
supply to several lubrication points. This can be achieved by connecting parts of the system
accessories (e.g. progressive distributors) to the lubricator. In such a case, it may be
necessary to change the settings at the lubricator to ensure safe and reliable operation.
- For operation and control, the lubricator must be integrated into a control system (PLC).
- The single-use changeable cartridges with a lubricant capacity of 125 or 250 cm3ensure
controlled and consistent quality of lubricants and are filled without any trapped air. The
lubricator offers a reliable supply to lubrication points and prevents downtime of machinery.
This version of the lubricator is designed for grease lubricants.
- The lubricator cannot be used without an external 24 V DC power supply. The lubricant
cartridge is included in the scope of delivery and already installed in the lubricator.
- The respective conditions of the lubricator are shown on the display, which also enables
recognition of the status by LEDs in different colors.
- In case of any questions regarding your applications and the correct settings for the lubricator,
please contact WITTENSTEIN alpha GmbH.
7

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6.2.2 Factory settings
Parameter
Designation
Factory settings
Result
P
Maximum pressure
50
50 bar
C
Number of cycles
1
0.15 cm3/ stroke
Pu
Control mode
1
Impulse mode active
U
Cartridge size
12
Cartridge 125 cm3
E
Inverted output signals
0
Permanent low signal in
case of error
L
Empty cartridge signal
2
Square-wave signal
F
Feedback signal
1
HIGH Signal
The factory settings may only be changed after consultation.
If you have any questions, please contact WITTENSTEIN alpha GmbH Sales / Customer
Service.
Tbl - 5 Factory settings
6.2.3 Default settings in impulse mode
In impulse mode, the lubricator must be integrated into a control system (PLC) for operation and
control. Depending on the signals received from the external control system (PLC), one or
several strokes are executed by the lubricator to dispense lubricant (0.15 cm³ per stroke).
iTo use the lubricator, it must first be properly assembled and installed, and afterwards
activated. For lubricator assembly, see chapter 5 "Assembly".
iFor special versions of the lubricator, the dedicated instructions and information on the
provided note must be observed!
6.3 Menu and display messages
The display of the lubricator is used to show various kinds of information to the user.
Symbol
Designation
Notice
Display information
The display visually shows information
both during operation and for
programming.
Tbl - 6 Display information
Display
Assignment
Top LED: red
Bottom LED: green
Tbl - 7 LED assignment

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Information in
display
Meaning
See
chapter
No display
Power supply not connected
6.2
OFF
Lubricator switched off
6.2
ON
Lubricator ready for operation
6.2
PAU
Lubricator in impulse mode PAU ready for operation and
waiting for control signal from the external control system
(PLC)
7
PAU (flashing)
Lubricator receives a control signal from the external control
system (PLC)
7
'---'
Received control signal longer than 15 seconds
7.2
E1
Error E1 (empty cartridge)
6.4
E2
Error E2 (cartridge error / no cartridge fitted)
6.4
E3
Error E3 (undervoltage)
6.4
E4/E5
Error E4/E5 (fatal error)
6.4
E7
Error E7 (overload)
6.4
01 … 50
After each cycle, the maximum applied counterpressure
during the cycle is displayed in bar.
Tbl - 8 Display messages
6.4 Error messages
The status is permanently monitored by the microelectronics integrated in the lubricator. In case
of any irregularities, an addressed error message is issued and shown on the display. The red
LED flashes every 5 seconds to visually indicate an error.
Display
Fault
Explanation
Remedy
E1
Cartridge empty
•Place a new cartridge on the
lubricator (see chapter 8.1.3
"Cartridge change").
iNo need to acknowledge the
error; it is automatically
cleared after the corrective
action is performed.
E2
Cartridge error;
cartridge not
recognized or
incorrectly fitted
E3
Undervoltage
•Check the power supply of the
lubricator

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Display
Fault
Explanation
Remedy
E4/E5
Fatal error
The error E4/E5 can have different
causes:
- Increased voltage for a short
time, 28...30 V, and therefore
the motor runtime is too short.
- The connected supply voltage
was too low and the motor
runtime too long.
•In these cases, the error is
corrected by switching the
lubricator off and on again.
Important! Between switching the
lubricator off and on, 60 seconds
must elapse.
•If the error E4 / E5 still
persists, remove the lubricator
from the application and return
it with the lubricant cartridge
and a description of the error
to WITTENSTEIN alpha
GmbH for investigation.
E7
Overload; the
counterpressure
at the lubrication
point is too high
•Check the lubrication point and
eliminate the cause.
'---'
Received control
signal longer
than 15 seconds
Only use high signals within the
prescribed tolerances (chapter 7.2
"Input signals – external control
system (PLC)".
Tbl - 9 Malfunctions
iThe lubricator is controlled and monitored via an external control system (PLC). When an
error occurs, the differentiated error messages are sent to the PLC for errors E1 ... E7
transmitted as output signals via PIN 4 of the electrical interface of the lubricator (see chapter
7.3 "Output signals / Display messages – external control system (PLC) ").

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7 Input and output signals – external control system (PLC)
The lubricator only works as pulse-controlled lubrication system if unchangeable input signals
(high-signal) are transmitted in a defined order from the PLC to the lubricator via PIN 2. Via
high/low signals picked up at PIN 4, the lubricator indicates the respective status to the PLC and
enables comprehensive control and differentiated evaluation of the different conditions by
suitable programming of the PLC. For incorporation of the lubricator into an external control
system, one input and one output must be provided on the control side.
7.1 Pin assignment – external control system (PLC)
PIN
Assignment
Color
1
+24 V DC
Brown
2
Input signal PLC => FP 125
White
3
Ground (GND)
Blue
4
Lubricator output signal => PLC
Black
Type: M12x1 plug socket; 4-pin, A-coded
Tbl - 10 PIN assignment – external control system (PLC)
For electrical connection to the external control (PLC) of an equipment, the lubricator is equipped
with a 4-pin plug socket in the form of a connector with standard M12x1 port.
iIn impulse mode, the lubricator can be fully shut down by disconnecting the supply voltage.
The settings made are not lost. After reconnection of the supply voltage, the lubricator
executes a self-test and resumes its function after receipt of an input signal from the PLC.
iFor operation of the lubricator via an external control system (PLC), a program corresponding
to the communication protocol must be created in the PLC.
iThe output signal at PIN 4 can be used for further processing (e.g. indicator light or external
control system). The maximum admissible output current of Imax < 20 mA must not be
exceeded. Inductive loads (e.g. relays) must not be connected!
iAfter extended standstill of the lubricator, a test run should be carried out manually. To do so,
a specific number of dispensing processes can be executed via the PLC (see chapter 7.2
"Input signals – external control system (PLC)").
1
2
3
4

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7.2 Input signals – external control system (PLC)
The lubricator provides the following unchangeable defined control signals (input signals), which
must be transmitted by the PLC to the lubricator via PIN 2 of the electrical M12x1 interface as
high signal (+24 V DC).
The control signals must be generated by the external control system (PLC) as high signal (+24
V) via specific times, each with a tolerance of +/- 0.1s
Signal duration in
seconds
Designation
Function
See chapter
2 high
2-second signal
1 stroke
7.2.1
3 high
3-second signal
2 strokes
7.2.2
12 high
12-second signal
FIL function
7.2.3
10 high
10-second signal
Error acknowledgment
7.2.4
Tbl - 11 Signal durations
iThe lubricator only processes the control signals specified in the table up to a maximum
length of 12 seconds. In case of a high signal (+24 V DC) outside of the tolerance, there is no
reaction from the lubricator. In case of a high signal (+24 V DC) for more than 15 seconds at
PIN 2 of the electrical interface, --- is shown in the display and there is no reaction from the
lubricator.