Nibe SMO 20 User guide

Installer manual
LEK
SMO 20
Control module
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A detailed explanation of the button functions can be found on page 23.
How to scroll through menus and make different settings is described on page 25.
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The mode for setting the indoor temperature is reached, when in the start mode in the main menu, by pressing
the OK button twice. Read more about the settings on page 27.
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To temporarily increase the amount of hot water (if a hot water heater is installed to your SMO 20), first turn the
control knob to mark menu 2 (water droplet) and then press the OK button twice. Read more about the settings
on page 32.
In event of disturbances in comfort
If a disturbance in comfort of any type occurs there are some measures that can be taken before you need to
contact your installer. See page 47 for instructions.

Table of Contents
1 Important information 2
Safety information 2
2 Delivery and handling 5
Mounting 5
Supplied components 5
3 The Control Module Design 6
Electrical components 6
4 Pipe connections 7
General 7
Docking alternatives 8
5 Electrical connections 11
General 11
Connections 14
Optional connections 16
Connecting accessories 20
6 Commissioning and adjusting 21
Preparations 21
Commissioning with NIBE air/water heat
pump 21
Commissioning with additional heating
only 21
Check the reversing valve 21
Start guide 22
7 Control - Introduction 23
Display unit 23
Menu system 24
8 Control - Menus 27
Menu 1 - INDOOR CLIMATE 27
Menu2-HOTWATER 32
Menu 3 - INFO 34
Menu4-MYSYSTEM 35
Menu 5 - SERVICE 39
9 Service 44
Service actions 44
10 Disturbances in comfort 47
Manage alarm 47
Troubleshooting 47
Additional heating only 48
11 Accessories 49
12 Technical data 51
Dimensions and setting-out coordinates 51
Technical specifications 52
Electrical circuit diagram 53
Item register 57
1Table of Contents |SMO 20

Safety information
This manual describes installation and service proced-
ures for implementation by specialists.
This appliance can be used by children
aged from 8 years and above and per-
sons with reduced physical, sensory or
mental capabilities or lack of experience
and knowledge if they have been given
supervision or instruction concerning
use of the appliance in a safe way and
understand the hazards involved. Chil-
dren shall not play with the appliance.
Cleaning and user maintenance shall
not be made by children without super-
vision.
Rights to make any design or technical
modifications are reserved.
©NIBE 2013.
Symbols
NOTE
This symbol indicates danger to machine or
person.
Caution
This symbol indicates important information
about what you should observe when main-
taining your installation.
TIP
This symbol indicates tips on how to facilitate
using the product.
Marking
SMO 20 is CE marked and fulfils IP21.
The CE marking means that NIBE ensures that the
product meets all regulations that are placed on it
based on relevant EU directives. The CE mark is obligat-
ory for most products sold in the EU, regardless where
they are made.
IP21 means that the product can be touched by hand,
that objects with a diameter larger than or equivalent
to 12.5 mm cannot penetrate and cause damage and
that the product is protected against vertically falling
drops.
Serial number
The serial number can be found on the upper side of
the cover on the control module.
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Caution
Always give the product's serial number when
reporting a fault.
Country specific information
Installer manual
This installer manual must be left with the customer.
SMO 20Chapter 1 | Important information2
1 Important information

Inspection of the installation
Current regulations require the heating installation to be inspected before it is commissioned. The inspection must
be carried out by a suitably qualified person. Fill in the page for information about installation data in the User
manual.
DateSignatureNotesDescription
✔
Electricity (page 11)
Communication, heat pump
Supply connected 230 V
Outside sensor
Room sensor
Temperature sensor, hot water charging
Temperature sensor, hot water top
Temperature sensor, external flow line
Temperature sensor, external return line
Charge pump
Shuttle valve
AUX 1
AUX 2
AUX 3
AUX 4
AUX 5
AUX 6
Dipswitch
Miscellaneous
Checking additional heater
Checking the function of the reversing
valve
Checking charge pump function
Completed installation check of heat
pump and associated equipment
3Chapter 1 | Important informationSMO 20
..................................................................................................................................................................................................................................................................................................................................................................................................................................................................

Contact information
KNV Energietechnik GmbH, Gahberggasse 11, 4861 SchörflingAT
Tel: [phone] Fax: [phone] E-mail: [e-mail] www.knv.at
NIBE Wärmetechnik AG, Winterthurerstrasse 710, CH-8247 FlurlingenCH
Tel: [phone] Fax: [phone] E-mail: inf[email protected] www.nibe.ch
Druzstevni zavody Drazice s.r.o, Drazice 69, CZ - 294 71 Benatky nad JizerouCZ
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibe.cz
NIBE Systemtechnik GmbH, Am Reiherpfahl 3, 29223 CelleDE
Tel: [phone] Fax: [phone] E-mail: inf[email protected] www.nibe.de
Vølund Varmeteknik A/S, Member of the Nibe Group, Brogårdsvej 7, 6920 VidebækDK
Tel: [phone] Fax: [phone] E-mail: inf[email protected] www.volundvt.dk
NIBE Energy Systems OY, Juurakkotie 3, 01510 VantaaFI
Puh: 09-274 697 0 Fax: [phone] E-mail: inf[email protected] www.nibe.fi
AIT France, 10 rue des Moines, 67000 HaguenauFR
Tel : [phone] Fax : [phone] E-mail: inf[email protected] www.nibe.fr
NIBE Energy Systems Ltd, 3C Broom Business Park, Bridge Way, Chesterfield S41 9QGGB
Tel: [phone] Fax: [phone] E-mail: inf[email protected] www.nibe.co.uk
NIBE Energietechniek B.V., Postbus 2, NL-4797 ZG WILLEMSTAD (NB)NL
Tel: [phone] Fax: [phone] E-mail: inf[email protected] www.nibenl.nl
ABK AS, Brobekkveien 80, 0582 Oslo, Postadresse: Postboks 64 Vollebekk, 0516 OsloNO
Tel. sentralbord: [phone] E-mail: [email protected] www.nibeenergysystems.no
NIBE-BIAWAR Sp. z o. o. Aleja Jana Pawła II 57, 15-703 BIAŁYSTOKPL
Tel: [phone] Fax: [phone] E-mail: [e-mail] www.biawar.com.pl
© "EVAN" 17, per. Boynovskiy, Nizhny NovgorodRU
Tel./fax [phone] E-mail: [email protected] www.nibe-evan.ru
NIBE AB Sweden, Box 14, Hannabadsvägen 5, SE-285 21 MarkarydSE
Tel: [phone] Fax: [phone] E-mail: inf[email protected] www.nibe.se
For countries not mention in this list, please contact Nibe Sweden or check www.nibe.eu for more information.
SMO 20Chapter 1 | Important information4

Mounting
NOTE
For wall mounting, use the mounting adapted
for the base.
110
410
360
10
310
215 70
35
Use all mounting points and install SMO 20 upright.
Leave approximately 100 mm free space around the
control module to facilitate access and cable routing
on installation and service.
NOTE
Access the screws for installing the front cover
from underneath.
Supplied components
Heating pipe pasteOutside sensor
LEK
Temperature sensorInsulation tape
LEK
Cable tiesAluminium tape
5Chapter 2 | Delivery and handlingSMO 20
2 Delivery and handling

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3) Electrical components
Base cardAA 2
Display unitAA 4
AA4-XJ3 USB outlet (no function)
AA4-XJ4 Service outlet (No function)
Extra relay circuit boardAA 7
Miniature circuit-breakerFA 1
Terminal block, incoming electrical supplyX1
Terminal block, control signal circulation pump,
sensors AUX inputs and heat pump
X2
SwitchSF 1
Serial number platePF 3
Cable grommet, incoming supply electricity,
power for accessories
UB 1
Cable gland, signalUB 2
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
SMO 20Chapter 3 | The Control Module Design6
3 The Control Module Design

General
Pipe installation must be carried out in accordance with
current norms and directives. See manual for compat-
ible NIBE air/water heat pump for installation of the
heat pump.
Compatible NIBE air/water heat pumps
Compatible NIBE air/water heat pumps must be
equipped with a control card that has at least the
software version given in the following list. The control
card version is displayed in the heat pump's display (if
applicable) upon start-up.
Software versionProduct
55F2015
55F2016
55F2025
55F2026
all versionsF2030
all versionsF2040
55F2300
Symbol key
MeaningSymbol
Shut-off valve
Non-return valve
Shunt / shuttle valve
Safety valve
Trim valve
Temperature sensor
Pressure gauge
P
Circulation pump
Particle filter
Temperature sensor installation on pipe
K
The temperature sensors are mounted with heat con-
ducting paste, cable ties (the first cable tie is secured
to the pipe in the middle of the sensor and the other
cable tie is mounted approx. 5 cm beyond the sensor)
and aluminium tape. Then insulate with supplied insu-
lation tape.
NOTE
Sensor and communication cables must not
be placed near power cables.
7Chapter 4 | Pipe connectionsSMO 20
4 Pipe connections

Docking alternatives
SMO 20 can be connected with other products from
NIBE in several different ways, some of which are shown
below (accessories may be required).
Further option information is available at www.nibe.eu
and in the respective assembly instructions for the ac-
cessories used. See page 49 for a list of the accessories
that can be used with SMO 20.
Installations with SMO 20 can produce heating and
hot water.
On cold days of the year when the access to energy
from the air is reduced the additional heating can
compensate and help to produce heat. The additional
heating is also good to have as assistance if the heat
pump ends up outside its working range or if it has
been blocked for any reason.
NOTE
The heating medium side and the hot water
side must be fitted with the necessary safety
equipment in accordance with the applicable
regulations.
This is the outline diagram. Actual installations
must be planned according to applicable
standards.
Explanation
SMO 20AA25
Outside sensorBT1
Temperature sensor, hot water chargingBT6
Temperature sensor, hot water topBT7
Temperature sensor, external flow lineBT25
Room sensorBT50
Temperature sensor, external supply line
after electric heater
BT63
Temperature sensor, external return lineBT71
Circulation pump, Heating mediumGP10
Reversing valve, Hot water/Heating medi-
um
QN10
Additional heatEB1
Immersion heaterEB1
Auxiliary relay/ContactorKA1
Heat pump systemEB101
Temperature sensor, returnBT3
Temperature sensor, condenser supply lineBT12
Heat pumpEB101
Safety valveFL10
Charge pumpGP12
Particle filterHQ1
Drain valve, Heating mediumQM1
Shut-off valve, Heating medium, FlowQM31
Shut off valve, Heating medium, ReturnQM32
Shut-off valveQM43
Miscel-
laneous
Expansion vessel closed, Hot waterCM1
Buffer vessel (UKV)CP5
Accumulator tank with hot water heatingCP10
Immersion heaterEB20
Safety valve, Heating mediumFL2
Auxiliary relay/ContactorKA1
Control valveRN10
Designations according to standards 81346-1 and
81346-2.
SMO 20Chapter 4 | Pipe connections8

Compatible NIBE air/water heat pump together with SMO 20 and electric heater before revers-
ing valve for hot water (floating condensing)
-FL2
-CM1
-EB101
-QM1
-BT3
-BT12 -QM31
-QM32 -QM43
-GP12
-EB101
-HQ1
-BT1
-AA25
-AA25
-BT63
-KA1
-EB1
-FL10
-RN10
-CP10
-AA25-QN10
-AA25-BT7
-AA25-BT6
-EB1
This installation alternative is suitable for simpler install-
ations with a focus on low installation costs.
SMO 20 (AA25) starts and stops the heat pump (EB101)
to meet the heat and hot water demand of the install-
ation. At simultaneous heating and hot water demand
the reversing valve switches (AA25-QN10) periodically
between the climate system and the water heater/ac-
cumulator tank (CP10). When the hot water heater/ac-
cumulator tank is fully charged (CP10), the reversing
valve switches (AA25-QN10) to the climate system.
Additional heat (EB1) is connected automatically when
the energy demand exceeds the heat pump capacity.
This is used for both heating and charging hot water.
The additional heat can also be used if a higher temper-
ature in the hot water is required than the heat pump
can produce.
9Chapter 4 | Pipe connectionsSMO 20

Compatible NIBE air/water heat pump together with SMO 20 and electric heater after reversing
valve for hot water (floating condensing)
-EB20
-KA1
-FL2
-CM1
-EB101
-QM1
-BT3
-BT12 -QM31
-QM32 -QM43
-GP12
-EB101
-HQ1
-BT1
-AA25
-AA25 -AA25
-FL10
-RN10
-CP10
-AA25-QN10
-AA25-BT7
-AA25-BT6
-BT25
-EB1
-CP5
-GP10
-KA1
-BT71
-EB1
-AA25
-BT50
This installations alternative is suitable for more com-
plex installations with a focus on comfort.
SMO 20 (AA25) starts and stops the heat pump (EB101)
to meet the heat and hot water demand of the install-
ation. At simultaneous heating and hot water demand
the reversing valve switches (AA25-QN10) periodically
between the climate system and the water heater/ac-
cumulator tank (CP10). When the hot water heater/ac-
cumulator tank is fully charged (CP10), the reversing
valve switches (AA25-QN10) to the climate system.
Additional heat (EB1) is connected automatically when
the energy demand exceeds the heat pump capacity.
Immersion heater (EB20) in the water heater/accumu-
lator tank (CP10) is used during the time to produce
hot water if the heat pump (EB101) is used for heating
the building at the same time.
The additional heat can also be used if a higher temper-
ature in the hot water is required than the heat pump
can produce.
SMO 20Chapter 4 | Pipe connections10

General
႑Disconnect SMO 20 before insulation testing the
house wiring.
႑If the building is equipped with an earth-fault
breaker, SMO 20 should be equipped with a separ-
ate one.
႑SMO 20 must be installed via an isolator switch with
a minimum breaking gap of 3mm.
႑For the electrical wiring diagram for the control
module, see page 53.
႑Communication and sensor cables to external con-
nections must not be laid close to high current
cables.
႑The minimum area of communication and sensor
cables to external connections must be 0.5 mm² up
to 50 m, for example EKKX or LiYY or equivalent.
႑When cable routing in SMO 20, cable grommets
(UB1 and UB2, marked in image) must be used.
NOTE
The switch (SF1) must not be moved to ""or
"" until the boiler in the system has been
filled with water. The compressor in the heat
pump and any external addition can be dam-
aged.
NOTE
Electrical installation and service must be car-
ried out under the supervision of a qualified
electrician. Cut the current with the circuit
breaker before carrying out any servicing.
Electrical installation and wiring must be car-
ried out in accordance with the stipulations in
force.
When installing SMO 20, NIBE's air/water heat
pump and any addition must be current free.
NOTE
See outline diagram for your system for phys-
ical location of the temperature sensor that is
to be installed.
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Miniature circuit-breaker
The control module operating circuit and parts of its
internal components are internally fused by a miniature
circuit-breaker (FA1).
11Chapter 5 | Electrical connectionsSMO 20
5 Electrical connections

Accessibility, electrical connection
The cover of the control module is opened using a Torx
25 driver. Assembly takes place in the reverse order.
LEK
3
2
1
NOTE
The cover to access the base card is opened
using a Torx 25 screwdriver.
LEK
The display may need to be moved for easier access
when connecting electrics. Do this easily by following
these steps.
1.
LEK
b
a
Press in the catch on the upper rear side of the
display unit towards you (a) and move the display
unit upwards (b) so that the mountings unhook
from the panel.
2.
LEK
Lift the display unit from its mountings.
3.
LEK
Align the two lower mountings on the reverse of
the display unit with the two upper holes in the
panel as illustrated.
SMO 20Chapter 5 | Electrical connections12

4.
LEK
Secure the display on the panel.
5. When the electrical connection is ready the display
must be reinstalled with three mounting points
again, otherwise the front cover cannot be in-
stalled.
Cable lock
Use a suitable tool to release/lock cables in the heat
pump terminal blocks.
Terminal block on the electrical card
2
1
2
3
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4
1
2
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Terminal block
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1 mm
3,5 mm
13Chapter 5 | Electrical connectionsSMO 20

Connections
NOTE
To prevent interference, unscreened commu-
nication and/or sensor to external connections
cables must not be laid closer than 20 cm to
high voltage cable when cable routing.
Power connection
SMO 20 must be installed via an isolator switch with a
minimum breaking gap of 3mm. Minimum cable area
must be dimensioned according to the fuse rating used.
Supplied cable for incoming electricity is connected to
terminal block X1.
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Tariff control
If the voltage to the compressor in the heat pump dis-
appears for a certain period, simultaneous blocking of
these must take place via software controlled input
(AUX input) to avoid alarm, see page 19.
Communication with heat pump
Connect the heat pump (EB101) to terminal block
X2:19 (A), X2:20 (B) and X2:21 (GND) as illustrated.
6
5
4
3
2
1
A
B
GND
A
B
GND
A
B
GND
SMO
F2015/F2025
/F2300
F2016/F2026
564231
A
B
GND
F2030
54231
A
B
GND
A
B
GND
F2040
19
20
21
18
X2
AA21-J2
X5
X5
AA23-X4
SMO 20
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10
19
20
21
14
18
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15
Connecting the charge pump for the heat
pump
Connect circulation pump (EB101-GP12) as illustrated
to terminal block X4:5 (PE), X4:5 (N) and X4:6 (230 V)
on the base card (AA2).
Control signal for (EB101-GP12) is connected to termin-
al block X2:1 (PWM) and X2:2 (GND) as illustrated.
987654
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SMO 20Chapter 5 | Electrical connections14

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6
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2
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8
9
13
12
4
3
11
10
19
20
21
14
18
16
17
15
NOTE
If the charge pumps are not correctly connec-
ted at start up the control module receives an
alarm.
Outside sensor
Install the outside temperature sensor (BT1) in the
shade on a wall facing north or north-west, so it is un-
affected by the morning sun.
Connect the sensor to terminal block X2:3 and X2:6.
Use a twin core cable of at least 0.5 mm² cable area.
If a conduit is used it must be sealed to prevent con-
densation in the sensor capsule.
SMO Externt
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6
7
2
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4
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9
13
12
4
3
11
10
19
20
21
14
18
16
17
15
Temperature sensor, hot water charging
The temperature sensor, hot water charging (BT6) is
placed in the submerged tube on the water heater.
Connect the sensor to terminal block X2:5 and X2:6.
Use a twin core cable of at least 0.5 mm² cable area.
Hot water charging is activated in menu 5.2 or in the
start guide.
SMO Externt
5
6
7
2
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3
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9
13
12
4
3
11
10
19
20
21
14
18
16
17
15
Temperature sensor, hot water top
A temperature sensor for hot water top (BT7) can be
connected to SMO 20 to show the water temperature
at the top of the tank (if it is possible to install a sensor
at the top of the tank).
Connect the sensor to terminal block X2:4 and X2:6.
Use a twin core cable of at least 0.5 mm² cable area.
SMO Externt
5
6
7
2
1
4
3
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8
9
13
12
4
3
11
10
19
20
21
14
18
16
17
15
Temperature sensor, external flow line
Connect temperature sensor, external supply line
(BT25) to terminal block X2:8 and X2:10. Use a twin
core cable of at least 0.5 mm² cable area.
SMO Externt
9
10
11
6
8
7
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19
20
21
14
18
16
17
15
15Chapter 5 | Electrical connectionsSMO 20

Temperature sensor, external supply line
after electric heater
Connect temperature sensor, external supply line after
electric heater (BT63) to terminal block X2:9 and X2:10.
Use a twin core cable of at least 0.5 mm² cable area.
SMO Externt
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10
11
6
8
7
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9
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10
19
20
21
14
18
16
17
15
Optional connections
Room sensor
SMO 20 can be supplemented with a room sensor
(BT50). The room temperature sensor has up to three
functions:
1. Show current room temperature in the control
module display.
2. Option of changing the room temperature in °C.
3. Makes it possible to change/stabilise the room
temperature.
Install the sensor in a neutral position where the set
temperature is required. A suitable location is on a free
inner wall in a hall approx. 1.5 m above the floor. It is
important that the sensor is not obstructed from
measuring the correct room temperature by being
located, for example, in a recess, between shelves, be-
hind a curtain, above or close to a heat source, in a
draft from an external door or in direct sunlight. Closed
radiator thermostats can also cause problems.
The control module operates without the sensor, but
if one wishes to read off the accommodation's indoor
temperature in SMO 20 display the sensor must be in-
stalled. Connect the room sensor to terminal block X2:7
and X2:10.
If the sensor is to be used to change the room temper-
ature in °C and/or to change/stabilise the room tem-
perature, the sensor must be activated in menu 1.9.4.
If the room sensor is used in a room with underfloor
heating, it should only have an indicatory function, not
control of the room temperature.
9
10
11
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7
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LEK
LN 1 1 0 23 4PE
21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
;
5
6
7
2
1
8
9
13
12
4
3
11
10
19
20
21
14
18
16
17
15
Caution
Changes of temperature in accommodation
take time. For example, short time periods in
combination with underfloor heating will not
give a noticeable difference in room temperat-
ure.
SMO 20Chapter 5 | Electrical connections16

Step controlled additional heat
NOTE
Mark up any junction boxes with warnings for
external voltage.
External step controlled additional heat can be con-
trolled by up to three potential free relays in the control
module (3 step linear or 7 step binary). Alternatively
two relays (2 step linear or 3 step binary) can be used
for step controlled additional heat which means that
the third relay can be used to control the immersion
heater in the water heater/accumulator tank.
Step in occurs with at least 1 minute interval and step
outs with at least 3 seconds interval.
Step 1 is connected to terminal block X2:1 and 2 on
the additional relay card (AA7).
Step 2 is connected to terminal block X2:3 and 4 on
the additional relay card (AA7).
Step 3 or immersion heater in the water heater/accu-
mulator tank is connected to terminal block X2:5 and
6 on the additional relay card (AA7).
The settings for step controlled additional heat are
made in menu 4.9.3 and menu 5.1.12.
All additional heat can be blocked by connecting a
potential free switch function to the software con-
trolled input on terminal block X2 (see page 19) which
is selected in menu 5.4.
654321
SMO
Externt
A1
A2
A1
A2
A1
-K1 -K2 -K3
A2
External
SMO 20
AA7-X2
LEK
LN 1 1 0 23 4PE
-X2
1
1234 56
23456
-X1
AA7-X2
If the relays are to be used for control voltage, bridge
the supply from terminal block X1:1 to X2:2, X2:4 and
X2:6 on additional relay card (AA7). Connect the
neutral from an external addition to terminal block
X1:0.
Relay output for emergency mode
NOTE
Mark up any junction boxes with warnings for
external voltage.
When the switch (SF1) is in " " mode (emergency
mode) the circulation pump is activated (EB101-GP12).
External accessories are disconnected.
The emergency mode relay can be used to activate
external additional heat, an external thermostat must
then be connected to the control circuit to control the
temperature. Ensure that the heating medium circu-
lates through the external additional heating.
432PE
SMO
Externt
;
([WHUQDO
602 
LEK
LN 1 1 0 23 4PE
21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
;
11NL 0 432PE
Caution
No hot water is produced when emergency
mode is activated.
1 0 432PE
SMO
Externt
NL
;
([WHUQDO
602 
LEK
LN 1 1 0 23 4PE
21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
;
11NL 0 432PE
If the relay is to be used for control voltage, bridge the
supply from terminal block X1:1 to X1:2 and connect
neutral and control voltage from the external additional
heat to X1:0 (N) and X1:4 (L).
17Chapter 5 | Electrical connectionsSMO 20

External circulation pump
Connect the external circulation pump (GP10) accord-
ing to image for terminal block X4:9 (PE), X4:10 (N) and
X4:11 (230 V) on the base card (AA2).
1312111098
SMO
Externt
PE
L
N
([WHUQDO
602 
$$;
*3
LEK
LN 1 1 0 23 4PE
$$;
Shuttle valve
SMO 20 can be supplemented with an external revers-
ing valve (QN10) for hot water control (see page 49
for accessory).
Connect the external reversing valve (QN10) as illus-
trated to the terminal block X2:2 (N), X2:3 (control)
and X2:4 (L) on the base card (AA2).
654321
SMO
Externt
N
L
([WHUQDO
602 
41
$$;
LEK
LN 1 1 0 23 4PE
$$;
External connection options
On terminal block X2, SMO 20 has software controlled
inputs and outputs for connection of sensors and ex-
ternal switch function. This means that a sensor or an
external switch function can be connected to one of
six special connections where the function for connec-
tion is decided in the control module software.
Caution
If an external contact function is connected to
SMO 20, the function for use input or output
must be selected in menu 5.4.
Selectable inputs terminal block X2 for these functions
are AUX1 (X2:11), AUX2 (X2:12), AUX3 (X2:13), AUX4
(X2:15), AUX5 (X2:16) andAUX6 (X2:17). Earth is con-
nected to terminal block X2:14 respectively X2:18 (see
electrical wiring diagram for more information).
Selectable output is terminal block X4:15-17 on base
card (AA2.
EORFN KHDWLQJ
DFWLYDWH WHPS OX[
QRW XVHG
QRW XVHG
QRW XVHG
QRW XVHG
VRIW LQRXWSXWV 
B
SMO Externt
13
14
15
10
12
11
A
([WHUQDO602 
;
LEK
LN 1 1 0 23 4PE
21 2019 18 17 1615 14 13 12 11 10 9 8 7 6 5 4 3 2 1
;
5
6
7
2
1
8
9
13
12
4
3
11
10
19
20
21
14
18
16
17
15
The example above uses the inputs AUX1 (X2:11) and AUX3
(X2:13) on terminal block (X2).
Caution
Some of the following functions can also be
activated and scheduled via menu settings.
Possible selection for AUX inputs
Following functions can be connected to the AUX in-
puts on terminal block X2.
SMO 20Chapter 5 | Electrical connections18