WELBA WMS-100 Series User manual

104193 V2.7 - © by WELBA - 14.10.2019
WELBA
Universal Milking Control
WMS-100
WMS-100 G1
Installation and operating instructions
for plant engineering companies
WELBA GmbH
Electronic Control Engineering
Gewerbepark Siebenmorgen 6
D-53547 Breitscheid
+49 (0)2638 / 9320-0
+49 (0)2638 / 9320-20
[email protected]
www.welba.de
Phone:
Fax:
E-mail:
Net:

Page 2
WMS-100 104193 V2.7 - 14.10.2019
Appliance description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Technical data of regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Sensor dimensions and technical data . . . . . . . . . . . . . . . . . . . . . . 8
Working level description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Washing programme description . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Operation of working levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
,Button functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
,Meaning of LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
,Overview of operating possibilities . . . . . . . . . . . . . . . . . . . . . . . 21
,Start options for cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Adjustment of parameters in general . . . . . . . . . . . . . . . . . . . . . . . 23
Operation of the 'cleaning parameters, running times' level . . . . . 25
Operation of the 'cleaning parameters, configuration’ level . . . . . . 27
Operation of the level “User-defined cleaning functions” . . . . . . . . 31
Operation of the level “Service parameters”. . . . . . . . . . . . . . . . . . 32
Sensor correction procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Adjustment of level control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Fault indication on the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
General measures when using electronic control systems. . . . . . . 36
Electro circuit diagram WTS-100-2 G1 . . . . . . . . . . . . . . . . . . . . . . 39
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Contents

The control unit type WMS-100 is designed to operate the automatic
washing systems of all common types of milking plant.
The device controls all the main plant components via a cleaning pro-
gramme that offers maximum programming flexibility and is easy to ope-
rate.
Detergent use is adjustable both using beakers and through measuring
pumps (with automatic detergent management).
In order to ensure optimum cleaning, various air injection systems for
optimum bubble formation are supported.
The individual adaptability of the operating phases increases the poten-
tial to economise on the consumption of natural resources such as
detergents, energy and water.
The control unit has three different operating modes:
!OFF mode
The control unit is on stand-by. The display shows 'OFF', the LEDs
are out and all output replays are deactivated.
The operating modes milking and washing can only be selected
from the OFF mode. It is not possible to switch directly from
one of them to another.
The 'manual milk pump operation' function can also only be selec-
ted from OFF mode.
CAUTION: The control unit is live even when switched off.
!Milking mode
The vacuum pump runs permanently until OFF button has been
pushed.
!Washing mode
The washing timer controls water intake as either by time or level,
selected. All running times (heater, pump, detergent injection) can
be set separately. Detergent switchover from acidic to alkaline can
also be set.
The WMS-100 controls the various processes and times needed
for a thorough wash fully automatically.
Following a power failure the control unit restarts in the mode
in which it was operating before the outage.
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WMS-100 104193 V2.7 - 14.10.2019
Appliance description

These operating instructions contain important technical
and safety information.
Please read carefully before installation and before any
work on or with the regulator.
The universal milking control type WMS-100 is used to control vacuum
pumps, solenoid valves, heaters and dosing pumps in milking plants.
Any other use of the device is permitted only with prior written permis-
sion from the manufacturer.
The universal milking control is ready for use once the parameters have
been set. lt should not be used before this has been done as this might
result in damage to the plant and the item to be cleaned.
The device is fitted with a resistance temperature sensor.
The device must not be installed in potentially explosive
atmospheres.
The universal milking control type WMS-100 fulfils the EC
requirements for electromagnetic compatibility (EMC) and the
Low Voltage Directive (LVD).
The safety components meet the VDE regulations.
WMS-100 104193 V2.7 - 14.10.2019
Intended use
Safety
The universal milking control must be installed by an
authorised specialist observing local safety regulations.
Access to the environment when connected must be
restricted to specialised personnel.
The universal milking control contains live components
and must not be opened up.
lt must not be used if the housing or connection terminals
are damaged.
No fluids must penetrate the housing.
The universal milking control may not be exported to the
USA without the manufacturer's express permission.
Page 4

Fitting the sensor
The sensor cable must not be chafed or kinked.
There must be no substantial mechanical pressure on the
sensor tube.
Do not place the sensor and the high-voltage cable in the
same cable conduit (not even within the switchbox).
Temperature range sensor cable -10°C .. +70°C
Changing the sensor cable length
lf it is necessary to shorten or lengthen the sensor cable on installation
(or if a sensor other than the one supplied is to be fitted), the "actual
value correction" parameter must be adjusted accordingly. See the
section "Setting the actual value correction" on page 34.
40 mm
6,0 mm
6,1 mm
It is essential not to install the device under the following conditions:
"severe jolting or vibration
"permanent contact with water
"relative humidity of more than 90%
"sharply fluctuating temperatures (condensation)
"operation in an aggressive atmosphere (ammonia or sulphur
fumes) - risk of oxidation
"operation in the immediate vicinity of radio transmitters with high
levels of spurious radiation.
Installation of housing
For fixing the housing please follow the instructions:
!Place the seal carefully in the groove. Ensure it is not twisted.
!Insert the housing from the front through the switchboard cut-out.
!Attach the holding frame in the rear position as shown by the picture.
!Fasten the housing by using the screws provided.
WMS-100 104193 V2.7 - 14.10.2019
166
95
157
96
R3
Installation
Drilling diagram
Page 5

Installation
Connection diagram
!Electrical connections must be as shown in the diagram below.
!Use cable bushes.
!Make sure that cables cannot chafe.
!Observe relay current rating.
!In all cases use contactors for pump and heater.
!Do not feed digital inputs with external voltage! Use potential-free
switches.
WMS-100 104193 V2.7 - 14.10.2019
Digital inputs
12 13 14
15
17 18
19
20
A1 A2
21 22
23
24
Pump down
(Milk pump)
Airinjektor
230VAC
+/-10%
Level electrodes
Sensor
KTY 81-210
External Start/Stop
milking
Savefty switch
milking/washing
External contacts must be potential-free
11
16
External start during
STOP phase
25 27
12
3
4
56
26
LED
Niv. OK
LN 1 2 345 6 78 9 10
N N N N N N N N N L
Cold water Warm water
Alkaline
Acidic
Outlet valve 1
Vacuum pump
Heater
Freely selectable
output function
in parameter E10
Freely selectable
output function
in parameter E11
Supply to outputs
12V
Freely selectable
output function
in parameter E9
K1 K2 K3 K4 K5 K6 K7 K8 K9 K10
K12 K11
Dig.1 Dig.2 Dig.3
Sensitivity level
(The sensitivity level is factory-set
to average water quality)
Page 6
Dig. 2 Dig. 3 Dig. 1 Dig. 4 Dig. 5 Dig. 6
Dry-running protect.
Add water /
circulation
without function
Dig.4 Dig.5 Dig.6

WMS-100 104193 V2.7 - 14.10.2019
Installation
Disposal
Electrical connection
Before connecting ensure that the mains voltage is the
same as indicated on the device's type plate.
Incorrect electrical connection can cause damage to the
tank control and to the equipment.
The mains voltage should not be switched on until all
components including the sensor are connected.
No appliances with current levels in excess of the maxi-
mum values indicated on the relays should be connected
to the relay contacts
Use contactors.
Downstream contactors must be fitted with an RC protecti-
on circuit. (see also page 36).
You will find the circuit diagram for your tank control on the back of the
housing above the connection terminals.
For the purposes of disposal, the device is classified as waste electronic
equipment within the meaning of European Directive 2002/96/EC
(WEEE) and must not be included with household waste. It must be
disposed of through the correct channels.
Local and current legislation must be observed.
Page 7

WMS-100 104193 V2.7 - 14.10.2019
Operating voltage 230V AC +/-10%, 50 Hz
Relay contacts 10 make-contacts
max. switching current 8 x each 10A AC1 - 250V AC
2 x each 16A AC1 - 250V AC
max. switching voltage 250V AC - 50..60 Hz
Display 13 mm LED - Display, 3 digits
LED switching status displays 3 mm
Display range -99 .. 999
Sensor type KTY 81-210
Sensor cable lenght 2 metres (or as required)
Measurement range -5° .. +70°C
Temperature resolution 0,1°C
Level detection via 2 electrodes (optional)
Digital inputs 6 (via opto coupler)
Connection Plug-in screw connections
for cables up to 2.5 mm²
Housing FEG 106/175 M
- front dimension 106 x 175 mm
- front panel cut out 156 x 96 mm
- insertion depht 45 mm
Protection (housing front) IP 64
Environment specifications:
- Operation temperature 0° .. +50°C
- Storage temperature -20° .. +70°C
- max. humidity 75% (no dew)
Technical Data
40 mm
6,0 mm
6,1 mm
Sensors other than our standard type are available on request
(different bush from or cable length).
Some of the options are shown here.
Sensor dimensions and technical data
Sensor element
Bush material
Bush length
Bush diameter
Cable material
Measurement range
Cable lenght
Protection type
KTY sensor
1.4301(V2A)
40 mm
6.0 mm +/- 0.1
PVC
-10 .. 70° C
Standard 2 metres
IP 65
Technical data subject to changes.
Page 8

Operation of the WMS-100 takes place at various levels:
Working level:
… for normal daily operation.
!OFF mode = switch control to STAND-BY
!Start “milking mode”
!Start “washing mode”
!select detergent
!manual start milk pump
The subsidiary parameters are accessed by entering a code in
order to avoid their accidental alteration.
Cleaning parameter running times
The running times of the various milking plant components are adjusted
here.
Cleaning parameter Configuration
For programming the control unit's individual tank-specific washing
functions.
User-defined cleaning functions
Used to programme user-specific cleaning functions.
Service parameters
Parameters for starting the system.
Only for service engineer!
WMS-100 104193 V2.7 - 14.10.2019
Working level description
Working level
for normal daily operation
Code 471 Code 454 Code 382 Code 567
Page 9
Cleaning parameter
Configuration
(E-parameters)
Cleaning parameter
running times
(P-parameters)
Service parameters
(t-parameters)
User-defined
cleaning functions
(b-parameters)

Page 10
WMS-100 104193 V2.7 - 14.10.2019
Washing programme description
The running time of each individual programme phase can be adjusted (P10 to P69). Which water valves (E75–E80), which drain valves (E81–E86) or which air injector (E65-E70) are to be used can be selected separately for each washing stage. The injection times are adjustable via separate parameters (P71-P74). Washing stages 1, 2, 4 and 6 can be repeated up to five times, or they can be deselected.
After the first or second washing stage, a pause can be inserted which is ended by a set time, pressing a button (cleaning) or digital input. In phases P10/P20/P30+H/P40/P50+H/P60 during water intake, the vacuum pump can be switched on as an option. The injection position is adjustable.
Cold water valve Warm water valve
Injektion pump alkaline Injektion pump acidic Outlet valve 1 Vacuum pump
Heater Air-Injektor Milk pump
Outlet valve 2 Vacuum increase
MMS Valve
Circulation valve Suction valve Sponge valve Air-Injektor 2 Hot water valve User-defined 1 User-defined 2
Temp. P82/84 Temp. P84
K1 K2 K3 K4 K5 K6 K7 K8 K12
K9 to K11
Level Level Level Level LevelLevel
DDDD
10 11 12 13 14 15 16 17 20 21 22 23 24 25 26 27
Stop
30 31 32 33 34 35 36 37
H40 41 42 43 44 45 46 47 60 61 62 63 64 65 66 67 68 69
Stop
Program step Program step Program step Program step Program step
50 51 52 53 54 55 56 57
H
Program step
Washing stage 1
Pre-rinse 1
Washing stage 2
Pre-rinse 2
Washing stage 3
Main wash 1
Washing stage 4
Intermediate rinse
Washing stage 6
Final rinse
Washing stage 5
Main wash 2
Functions allocated to fixed relays Functions which can be allocated to three fixed relays

Washing stages and program steps
A washing cycle consists of up to six different washing stages. Each
washing stage consists of up to 8 time adjustable steps
Fixed and settable relay functions:
In the milking plant control system nine functions are assigned to fixed
relays (see previous page).
Further functions are possible. A maximum of three of these can be
assigned to the three 'settable' relays via parameter settings.
Determination of washing stages and detergents used:
For each milking plant there is a free choice of washing stage sequence.
The frequency of the various washing stages per cleaning cycle can be
adjusted. Parameter [E31 to E36].
It is generally possible to decide whether a cleaning cycle should use
both alkaline and acidic detergents, or only one of them. If only one
detergent is to be used [E35=0], the number of alkaline cleaning cycles
which should pass before an acidic wash takes place can be set via
parameter [E40].
STOP phase
After pre-rinse 1 or alternatively 2, the cleaning cycle can be interrupted
for an adjustable period of time. The idea is that milk residues are rinsed
out of the system immediately, but the main cleaning process takes
place just before the next milking. The STOP phase is set via parame-
ters [E38 and E39].
Cleaning resumes:
- after the pre-set period of time,
- if the cleaning button is pressed for a longer time during the
STOP phase,
- if the digital input 'Dig. 3' is operated externally.
WMS-100 104193 V2.7 - 14.10.2019
Washing stage
Program step
allocated
functions
fixed
functions
Washing programme description
Page 11

WMS-100 104193 V2.7 - 14.10.2019
The following descriptions of the washing stages cover all the functions
which can be controlled by the WMS-100 – regardless of whether the
function is actually present in your milking plant.
Functions assigned to fixed relays
+Function “cold water valve” (relay K1)
+Function “warm water valve” (relay K2)
Parameters [E71 to E76] can be used to determine which water
valves are to be operated, separately for each washing stage.
It is also stipulated by parameter [P10,P20..] whether water is to be
taken in by 'level' or by 'time' [n8].
If, in the event of intake by level, the level is not reached after a preset
time, the washing cycle is interrupted. See fault description.
+Function “injection pump alkaline” (relay K3)
+Function “injection pump acidic” (relay K4)
,It is generally possible to decide whether a cleaning cycle is to use
both alkaline and acidic detergents, or only one of them. If only one
detergent is to be used [E35=0], the number of alkaline cleaning
cycles which should pass before an acidic wash takes place can be
set via parameter [E40].
,Parameter [E43] is used to determine the point at which detergent
is injected during washing stages 3 and 5.
,Parameters [P71, 72, 74] are used to determine the duration of
detergent injection. It should be pointed out here that 'warm water'
and 'hot water' settings are available for alkaline detergent. The
user decides in the working level which setting is to be used. See
list of parameters.
+Function “drain valve 1” (relay K5)
Parameters [E81 to E86] can be used to determine, separately for
each washing stage, whether drain valve 1, drain valve 2 or both
together are opened. (Drain valve 2 = optionally)
+Function “vacuum pump” (relay K6)
rameter [E42] is used to determine when the vacuum pump is to start,
for all washing stages.
+Function “Heating” (relay K7)
,Parameters [P80, P81 and P83] are used to set the temperatures
for the two main washing stages.
,Parameters [P82 and P84] are used to set the subsequent heating
temperatures. (Subsequent heating is necessary if circulation of
the water causes the water temperature to fall below that pre-
scribed by the detergent manufacturer.)
Washing programme description
Page 12
User tip for “water intake”:
If for example hot water is to
be taken in via a third “valve”,
this can also be defined via
parameters [E71 to E76].

WMS-100 104193 V2.7 - 14.10.2019
,Parameter [E23] is used to determine whether a heating system is
present and when it is activated.
,Parameter [E24] is used to set the maximum heating time. If the set
temperature is not reached during this time, the cleaning process
proceeds to the end and an error report is made.
+Function “air injector” (relay K8)
,Parameters [E61 to E66] are used to determine, separately for
each washing stage, whether the air injector is present and
whether it should work in 'simple' or 'complex' mode.
,Parameters [E58 and E59] are used for the 'simple' mode settings.
,Parameters [E53 to E57] are used for the 'complex' mode settings
+Function “milk pump” (relay K12)
Parameters [E50 and E51] are used to determine, for all washing
stages, whether the milk pump should run continuously or intermit-
tently. In this way the amount of water returned into the washing unit
is determined.
Parameter [E50] is used here to set the 'pump on' time, and parame-
ter [E51] is used to set the 'pump off' time.
If parameter [E51] is set to '0', the milk pump runs continuously
regardless of the [E50] setting.
Without air injector:
parts of the pipework are not reached.
With air injector:
boosts mean that the pipework is
thoroughly cleaned.
Washing programme description
Page 13
Explanation simple mode:
pulse packets
simply alternating
Explanation complex mode:

WMS-100 104193 V2.7 - 14.10.2019
Washing stage 1: PRE-RINSE 1
Parameter [E31] = 0 ‘Wash stage 1’ deactivated
Parameter [E31] = 1..5 Run 'wash stage 1’ n times
+Take in water:
The cleaning parameter [E71]determines which water valves are to
be operated.
It is also determined whether water intake is to be controlled by 'level'
[P10 = 0] or by 'time' [P10 > 0].
If 'level' is selected and the level is not reached after the set time [E27]
has elapsed, the cleaning process is stopped. See error description.
+Vacuum pump:
Parameter [E42] can be used to determine whether the vacuum
pump should start as soon as water is taken in [programme step
P10].
+Air injector:
Parameter [E61] can be used to determine whether the air injector is
to be activated in washing stage 1 and whether it is to work in 'simple'
or 'complex' mode. See page 29.
+Milk pump:
Parameters [E50 and E51] are used to determine, for all washing
stages, whether the milk pump should run continuously or intermit-
tently.
+STOP phase:
Set if required. See page 11.
Washing stage 2: PRE-RINSE 2
Parameter [E32] = 0 ‘Wash stage 2’ deactivated
Parameter [E32] = 1..5 Run 'wash stage 2’ n times
+Take in water:
The cleaning parameter [E72]determines which water valves are to
be operated.
It is also determined whether water intake is to be controlled by 'level'
[P20 = 0] or by 'time' [P20 > 0].
If 'level' is selected and the level is not reached after the set time [E27]
has elapsed, the cleaning process is stopped. See error description.
+Vacuum pump:
Parameter [E42] can be used to determine whether the vacuum
pump should start as soon as water is taken in [programme step
P20].
+Air injector:
Parameter [E62] can be used to determine whether the air injector is
to be activated in washing stage 2 and whether it is to work in 'simple'
or 'complex' mode. See page 29.
+Milk pump:
Parameters [E50 and E51] are used to determine, for all washing
stages, whether the milk pump should run continuously or intermit-
tently.
+STOP phase:
Set if required. See page 11.
Washing programme description
Page 14

WMS-100 104193 V2.7 - 14.10.2019
Functions which can be assigned to the three free
relays.
Parameters [E9 to E11] are used to determine which of the following
functions are assigned to the three relays K9, K10 and K11.
+Drain valve 2
Parameters [E81 to E86] can be used to determine, separately for
each washing stage, whether drain valve 1, drain valve 2 or both
together are opened.
+Vacuum increase or signal: cleaning active
Can be used to control the 'vacuum increase valve' or as a signal
'cleaning active'.
The relay remains switched on from the start of the cleaning cycle to
the end of cleaning.
+MMS valve
Used to control the 'milk measuring system’
+Circulation valve
Used to control the 'circulation valve'.
+Suction valve
Used to control the 'suction valve'.
+Sponge valve
Used to control the 'ssponge valve'.
+Air injector 2 (delayed)
Can be used to connect a second air injector. This follows the first
one after the time set in parameter [E 68].
+Third valve (hot water)
Can be used to connect a third water intake valve.
+User-defined 1 and 2
Used to control special plant components. Switching functions are
freely programmable for all washing stages.
The procedure for programming these functions is described on
page 31.
Washing programme description
Page 15

WMS-100 104193 V2.7 - 14.10.2019
Washing stage 3: MAIN WASH 1
+Take in water:
The cleaning parameter [E73] determines which water valves are to
be operated.
It is also determined whether water intake is to be controlled by 'level'
[P30 = 0] or by 'time' [P30 > 0].
If 'level' is selected and the level is not reached after the set time [E27]
has elapsed, the cleaning process is stopped. See error description.
+Vacuum pump:
Parameter [E42] can be used to determine whether the vacuum
pump should start as soon as water is taken in [programme step
P10].
+Air injector:
Parameter [E63] can be used to determine whether the air injector is
to be activated in washing stage 3 and whether it is to work in 'simple'
or 'complex' mode. See page 29.
+Milk pump:
Parameters [E50 and E51] are used to determine, for all washing
stages, whether the milk pump should run continuously or intermit-
tently.
+Injektion pump alkaline and acidic:
See page 12.
+Heater:
See page 12.
Washing stage 4: INTERMEDIATE RINSE
Parameter [E34] = 0 ‘Wash stage 4’ deactivated
Parameter [E34] = 1..5 Run 'wash stage 4’ n times
+Take in water:
The cleaning parameter [E74] determines which water valves are to
be operated.
It is also determined whether water intake is to be controlled by 'level'
[P40 = 0] or by 'time' [P40 > 0].
If 'level' is selected and the level is not reached after the set time [E27]
has elapsed, the cleaning process is stopped. See error description.
+Vacuum pump:
Parameter [E42] can be used to determine whether the vacuum
pump should start as soon as water is taken in [programme step
P40].
+Air injector:
Parameter [E64] can be used to determine whether the air injector is
to be activated in washing stage 2 and whether it is to work in 'simple'
or 'complex' mode. See page 29.
+Milk pump:
Parameters [E50 and E51] are used to determine, for all washing
stages, whether the milk pump should run continuously or intermit-
tently.
Washing programme description
Page 16

WMS-100 104193 V2.7 - 14.10.2019
Washing stage 5: MAIN WASH 2
Parameter [E35] = 0 ‘Wash stage 5' deactivated
Parameter [E35] = 1 Run 'wash stage
+Take in water:
The cleaning parameter [E75] determines which water valves are to
be operated.
It is also determined whether water intake is to be controlled by 'level'
[P50 = 0] or by 'time' [P50 > 0].
If 'level' is selected and the level is not reached after the set time [E27]
has elapsed, the cleaning process is stopped. See error description.
+Vacuum pump:
Parameter [E42] can be used to determine whether the vacuum
pump should start as soon as water is taken in [programme step
P50].
+Air injector:
Parameter [E65] can be used to determine whether the air injector is
to be activated in washing stage 3 and whether it is to work in 'simple'
or 'complex' mode. See page 29.
+Milk pump:
Parameters [E50 and E51] are used to determine, for all washing
stages, whether the milk pump should run continuously or intermit-
tently.
+Injection pump acidic:
See page 12.
+Heater:
See page 12.
Washing stage 6: FINAL RINSE
Parameter [E36] = 0 ‘Wash stage 6’ deactivated
Parameter [E36] = 1..5 Run 'wash stage 6’ n times
+Take in water:
The cleaning parameter [E76] determines which water valves are to
be operated.
It is also determined whether water intake is to be controlled by 'level'
[P60 = 0] or by 'time' [P60 > 0].
If 'level' is selected and the level is not reached after the set time [E27]
has elapsed, the cleaning process is stopped. See error description.
+Vacuum pump:
Parameter [E42] can be used to determine whether the vacuum
pump should start as soon as water is taken in [programme step
P60].
+Air injector:
Parameter [E66] can be used to determine whether the air injector is
to be activated in washing stage 2 and whether it is to work in 'simple'
or 'complex' mode. See page 29.
+Milk pump:
Parameters [E50 and E51] are used to determine, for all washing
stages, whether the milk pump should run continuously or intermit-
tently.
Washing programme description
Page 17

WMS-100 104193 V2.7 - 14.10.2019
If the washing programme has run without fault the control unit automati-
cally switches to 'OFF mode'.
‘OFF' is displayed.
The LED 'END OF CLEANING' remains lit until the OFF button is
pressed.
Any other mode can now be selected.
°C
vac
Washing programme description
Page 18

OFF button
!Switch regulator to STANDBY
!Acknowledge error
SET button
in working level without function
'MILKING' button - in OFF
Press button once = Start of milking
Keep button pressed = Remove remaining water from milk pump
as long as button is held down.
‚ALKALINE / ACIDIC' switchover button - in OFF mode
Press button = Select whether alkaline or acidic
detergent is to be used.
(observe LED indication)
'CLEANING button - in OFF mode
Press button = Start of automatic cleaning
See page 22.
'ARROW UP / ARROW DOWN' button
!Switch to programming mode (press button for 3 seconds)
WMS-100 104193 V2.7 - 14.10.2019
The working level is for normal daily operation.
In the standard setting, the
control system determines
the detergent for the next
cleaning process.
This button can be used to
switch to the other
detergent.
Working level
for normal daily operation
Code 471 Code 454 Code 382 Code 567
°C
vac
Operation of working level
Button functions
To change to a different
mode always press the
'OFF' button first.
Active modes are closed
down by pressing the 'OFF'
button.
Page 19
Cleaning parameter
Configuration
(E-parameters)
Cleaning parameter
running times
(P-parameters)
Service parameters
(t-parameters)
User-defined
cleaning functions
(b-parameters)

Meaning of LEDs
LED “MILKING” “milking mode” is activ
LED “CLEANING” „cleaning mode“ is activ
“Drop full” LED alkaline detergent selected
“Drop empty” LED acidic detergent selected
LED “FAULT”
blinking The control unit is in fault mode,
which must be cancelled.
LED “WASH END”
continuous Washing is completed
LED “VACUUM PUMP” Vakuum pump is switched on
LED “COLD WATER” Cold water valve is switched on
LED “WARM WATER” Warm water valve is switched on
LED “HEATER” Heater is switched on
LED “DRAIN VALVE” Drain valve is switched on
WMS-100 104193 V2.7 - 14.10.2019
vac
°C
vac
Operation of working level
Page 20