ABB i-bus KNX SU/S 30.640.2 User manual

—
PRODUCT MANUAL
ABB i-bus®KNX
SU/S 30.640.2
Uninterruptible KNX Power Supply,
640 mA

ABB i-bus®KNX
Content
SU/S 30.640.2 | 9AKK107992A4580_EN Rev. A i
Content
Page
1General ................................................................................................. 5
1.1 Using the product manual.............................................................................................................5
1.2 Legal disclaimer............................................................................................................................5
1.3 Explanation of symbols.................................................................................................................5
2Safety .................................................................................................... 7
2.1 General safety instructions ...........................................................................................................7
2.2Proper use ....................................................................................................................................7
3Product overview................................................................................. 9
3.1 Device description ........................................................................................................................9
3.2 Product name description.............................................................................................................9
3.3 Ordering details ............................................................................................................................9
3.4 Connections..................................................................................................................................9
3.4.1 Inputs............................................................................................................................................9
3.4.2 Outputs.........................................................................................................................................9
3.5 Uninterruptible KNX Power Supply, 640 mA SU/S 30.640.2, MDRC..........................................10
3.5.1 Dimension drawing .....................................................................................................................10
3.5.2 Connection diagram ...................................................................................................................11
3.5.3 Operating and display elements .................................................................................................12
3.5.4 Technical data ............................................................................................................................13
4Function.............................................................................................. 15
4.1 Device functions .........................................................................................................................15
4.2 Monitoring and fault messages...................................................................................................16
4.2.1 Bus line monitoring .....................................................................................................................16
4.2.2 Mains voltage monitoring............................................................................................................16
4.2.3 Battery voltage monitoring..........................................................................................................16
4.2.4 Diagnostic table ..........................................................................................................................17
5Mounting and installation ................................................................. 19
5.1 Information about mounting........................................................................................................19
5.2 Mounting on DIN rail...................................................................................................................19
5.3 Connecting the floating changeover contact...............................................................................19
5.4 Connecting the Sealed Lead Acid Batteries SAK X....................................................................20
5.5 Mounting and connecting the battery module AM/S 12.1 ...........................................................22
6Commissioning.................................................................................. 25
7Parameters ......................................................................................... 27
8Group objects .................................................................................... 29

ABB i-bus®KNX
Content
ii 9AKK107992A4580_EN Rev. A | SU/S 30.640.2
9Operation ............................................................................................31
9.1 Resetting the saved overload indication .................................................................................... 31
10 Maintenance and cleaning................................................................. 33
10.1 Maintenance .............................................................................................................................. 33
10.2 Cleaning..................................................................................................................................... 33
11 Removal and disposal .......................................................................35
11.1 Removal..................................................................................................................................... 35
11.2 Environment............................................................................................................................... 35
12 Planning and application................................................................... 37
12.1 Device application...................................................................................................................... 37
12.2 Back-up supply .......................................................................................................................... 37
12.3 Battery service life ..................................................................................................................... 38
13 Appendix.............................................................................................39
13.1 Scope of delivery ....................................................................................................................... 39
13.2 Accessories ............................................................................................................................... 39
13.2.1 Technical data of Cable Set, Basic KS/K 4.1 (GHQ6301910R0001)......................................... 39
13.2.2 Technical data of Cable Set, Extension KS/K 2.1 (GHQ6301910R0011) .................................. 39
13.2.3 Technical data of SAK2 (GHV9240001V0010).......................................................................... 40
13.2.4 Technical data of SAK7 (GHV9240001V0011).......................................................................... 40
13.2.5 Technical data of SAK12 (GHV9240001V0012)........................................................................ 40
13.2.6 Technical data of SAK17 (GHV9240001V0013)........................................................................ 41
13.2.7 Technical data of AM/S 12.1 (GHQ6310062R0111).................................................................. 41
13.3 Notes ......................................................................................................................................... 42

ABB i-bus®KNX
General
SU/S 30.640.2 | 9AKK107992A4580_EN Rev. A 5
1 General
1.1 Using the product manual
This manual provides detailed technical information relating to the function, installation and programming
of the ABB i-bus®KNX device.
1.2 Legal disclaimer
We reserve the right to make technical changes to the products as well as amendments to the content of
this document at any time without advance notice.
In the case of orders, the respective agreed conditions shall be decisive. ABB AG accepts no responsibility
whatsoever for potential errors or possible lack of information in this document.
We reserve all rights to this document and the objects and illustrations contained therein. Reproduction,
transfer to third parties or processing of the content – including sections thereof – is not permitted without
the prior written consent of ABB AG.
Copyright© 2022 ABB AG
All rights reserved
1.3 Explanation of symbols
1.
Instructions in specified sequence
2.
►Individual actions
a) Priorities
1) Processes run by the device in a specific sequence
•List level 1
o
List level 2
Tab.1: Explanation of symbols

ABB i-bus®KNX
General
69AKK107992A4580_EN Rev. A | SU/S 30.640.2
Notes and warnings are represented as follows in this manual:
DANGER –
This symbol is a warning about electrical voltage and indicates high-risk hazards that will definitely result
in death or serious injury unless avoided.
DANGER –
Indicates high-risk hazards that will definitely result in death or serious injury unless avoided.
WARNING ‒
Indicates medium-risk hazards that could result in death or serious injury unless avoided.
CAUTION –
Indicates low-risk hazards that could result in slight or moderate injury unless avoided.
ATTENTION –
Indicates a risk of malfunctions or damage to property and equipment, but with no risk to life and limb.
Example:
For use in application, installation and programming examples
Note
For use in tips on usage and operation

ABB i-bus®KNX
Safety
SU/S 30.640.2 | 9AKK107992A4580_EN Rev. A 7
2 Safety
2.1 General safety instructions
►
Protect the device from moisture, dirt and damage during transport, storage and operation.
►
Operate the device only within the specified technical data.
►
Operate the device only in a closed housing (distribution board).
►
Mounting and installation must be carried out only by qualified electricians.
►
Disconnect the device from the supply of electrical power before mounting.
2.2 Proper use
The product must be installed centrally in an electrical distribution board.
The device is a modular installation device for quick installation in distribution boards on 35 mm mounting
rails according to EN 60715.

ABB i-bus®KNX
Product overview
SU/S 30.640.2 | 9AKK107992A4580_EN Rev. A 9
3 Product overview
3.1 Device description
The KNX Power Supply SU/S 30.640.2 provides the system voltage (SELV) for KNX components.
ABB offers a range of matching KNX power supplies. In addition to the standard devices, devices with
diagnostic or bus-monitoring functions are available for more complex applications. The SU/S 30.640.2 is
the uninterruptible battery backed-up KNX power supply.
All ABB KNX power supplies have an integrated choke.
The device is a modular installation device (MDRC) in pro Mdesign. With a module width of 8 division
units (DU), the device is designed for installation in distribution boards on a 35 mm mounting rail.
The connection to the ABB i-bus®KNX is established via a bus connecting terminal on the front.
After connecting the mains voltage, the unit is ready for operation.
3.2 Product name description
Abbreviation Description
S Power Supply
U Uninterruptible
/S MDRC
X 30 = Bus voltage (V)
X 640 = Bus current (mA)
X 2 = Version number (x = 1, 2, etc.)
Tab. 2: Product name description
3.3 Ordering details
Description MW Type Order no. Packaging
unit [pcs.]
Weight
1 pc.
[kg]
Uninterruptible KNX Power
Supply, 640 mA
8SU/S 30.640.2 2CDG110275R0011 10.398
Tab. 3: Ordering details
3.4 Connections
3.4.1 Inputs
•Mains connection
•Battery connection including temperature sensor
3.4.2 Outputs
•Floating changeover contact
•Bus connection

ABB i-bus®KNX
Product overview
10 9AKK107992A4580_EN Rev. A | SU/S 30.640.2
3.5 Uninterruptible KNX Power Supply, 640 mA SU/S 30.640.2, MDRC
Fig. 1: Device illustration – SU/S 30.640.2
3.5.1 Dimension drawing
Fig. 2: Dimension drawing
9PAA00000059996
2CDC072027F0017

ABB i-bus®KNX
Product overview
SU/S 30.640.2 | 9AKK107992A4580_EN Rev. A 11
3.5.2 Connection diagram
Fig. 3: Connection diagram SU/S 30.640.2
Legend
1
Label carriers
8
Code/650 mA and temperature sensor (-)
2
LED without function
9
Battery connection (+)
3
Reset button
10
Mains connection
4
KNX connection
11
Floating changeover contact
5
Cover cap
12
AC Input LED (green)
6
Temperature sensor connection (+)
13
Battery LED (green)
7
150 mA and temperature sensor (-)
14
U
n
KNX LED (green)
15
I
n
Overload LED (red)
9AKK107992A4484

ABB i-bus®KNX
Product overview
12 9AKK107992A4580_EN Rev. A | SU/S 30.640.2
3.5.3 Operating and display elements
Button/LED Description LED indicator
Reset With reset, the overload display and the fault
signal relay are reset, there is no reset of the KNX
bus.
If the fault has not been rectified before pressing
the reset button, the fault is still present, the
potential-free changeover contact and the LED
remain in the fault position.
AC Input Off: No mains voltage
On: Mains voltage OK
Battery Off: No battery connected or battery fault
On: Battery OK
UNKNX Off: Overload/bus line short circuit
On: Bus line OK
INOverload Off: Bus line OK
On: Overload/bus line short circuit
Tab. 4: Operating and display elements

ABB i-bus®KNX
Product overview
SU/S 30.640.2 | 9AKK107992A4580_EN Rev. A 13
3.5.4 Technical data
Supply Mains voltage Us100 – 240 V AC, 50/60 Hz (85…265 V AC)
Power consumption
< 60 VA
Power loss < 10 W
Battery backup Ubat
Battery type
Sealed Lead Acid Battery
Quantity Max. 2 in parallel (with the same capacity)
Rated voltage 12 V DC
Battery capacity 1 Ah – 2 x 17 Ah
Mains voltage failure bridging time depending on battery capacity
Nominal battery charging current 600 mA, with battery connection via KS/K cable
set
150 mA with battery module AM/S12.
Charging voltage control Charging voltage controlled via temperature
sensor
Connections Connection type, bus Plug-in terminal
Cable diameter, bus 0.6 … 0.8 mm, solid
Connection type, mains voltage U
s
3 screw terminals
Connection type, battery connection U
bat
incl. temperature sensor
4 screw terminals
Connection type, changeover contact
3 screw terminals
Connection type, load circuit Screw terminal with universal head (PZ 1)
Pitch 6.35 mm
Tightening torque, screw terminals ≤ 0.6 Nm
Conductor cross section, fine stranded
All screw terminals: (0.75 – 2.5 mm²)
Conductor cross section, single core All screw terminals: (0.2 – 4.0 mm²)
Outputs KNX Power Supply Un1 line with integrated choke
Rated voltage
30 V DC
Voltage range, bus 21 … 31 V DC
Rated bus current 640 mA, continuous short-circuit proof
Bus overload current
900 mA
Bus continuous short circuit current 1.3 A – 1.5 A
Mains power failure backup time (without
connected battery)
100 ms
KNX safety extra low voltage SELV
Floating changeover contact µ
Rated voltage 100-240 V AC – 12/24 V DC
Max. switching current 6 A AC or 4 A DC
Mains connection 3 screw terminals
Floating changeover contact µ

ABB i-bus®KNX
Product overview
14 9AKK107992A4580_EN Rev. A | SU/S 30.640.2
Degree of protection and
protection class
Degree of protection
IP 20 (according to EN 60529)
Protection class II (according to EN 61140)
Isolation category
Overvoltage category
III (according to EN 60664-1)
Pollution degree 2 (according to EN 60664-1)
SELV KNX safety extra low voltage SELV 24 V DC
Temperature range
Operation
−5 … +45 °C
Transport −25 … +70 °C
Storage −25 … +55 °C
Ambient conditions Humidity ≤ 95 %
Atmospheric pressure Atmosphere up to 2,000 m
Design Modular installation device (MDRC) Modular installation device
Design pro M
Housing/color
Polycarbonate, Makrolon FR6002, halogen free
Dimensions Dimensions 90 × 140 × 63.5 mm (H x W x D)
Mounting width in space units 8 modules, 17.5 mm each
Mounting depth
68 mm
Mounting 35 mm mounting rail According to EN 60715
Mounting position Any
Weight 0.398 kg
Approvals KNX certification According to EN 50491
Declaration of conformity CE
Tab. 5: Technical data

ABB i-bus®KNX
Function
SU/S 30.640.2 | 9AKK107992A4580_EN Rev. A 15
4 Function
4.1 Device functions
The uninterruptible KNX power supply generates and monitors the KNX system voltage. The integrated
choke decouples the bus line from the power supply.
The power supply is connected to the bus line with a bus connecting terminal.
When the reset button is pressed, the overload indicator and the fault signal relay are reset. If the fault was
not corrected before the reset button was pressed, the fault is still present, the floating changeover contact
and the LED remain in the fault position. When the reset button is pressed, the bus line is not de-
energized. To de-energize the bus line, the bus connecting terminal must be disconnected from the power
supply.
Up to two 12 V lead gel accumulators can be connected to buffer the KNX system voltage in the event of
mains voltage failures. The batteries are charged via the SU/S 30.640.2. A temperature sensor is used to
control the charging voltage. In the event of a mains voltage failure, the SU/S 30.640.2 is powered by the
batteries.
ATTENTION –
The temperature sensor must be connected in any case so that the battery can be charged properly.
The fault of the device can be reported via a potential-free changeover contact. The potential-free
changeover contact is closed between terminals 4 and 5 in the normal state, and between terminals 5 and
6 in the event of a fault.
The following faults will cause the changeover contact to switch:
•Mains voltage failure
•Battery fault
•Overvoltage and overload or short circuit of the bus line

ABB i-bus®KNX
Function
16 9AKK107992A4580_EN Rev. A | SU/S 30.640.2
4.2 Monitoring and fault messages
The device continuously monitors the bus current, the mains voltage and the battery voltage. Faults are
indicated by LEDs directly on the device and reported via the floating changeover contact.
If an overload is present for more than 10 seconds, the fault message is logged, i.e., the potential-free
changeover contact and the corresponding LEDs remain in the fault position, even if the cause of the fault
message is no longer present and the KNX line is back in normal operation.
Once the fault has been corrected, the saved alarm can be acknowledged and deleted by pressing the
Reset button once. The potential-free contact switches to its idle position and the LED assumes the state
of normal operation.
If the fault has not been rectified before the reset button is pressed, the fault remains logged, the floating
changeover contact and the LED remain in the fault position.
4.2.1 Bus line monitoring
Overload/short circuit: The "I Overload" LED illuminates red if the bus line overloads. If the overload
causes bus currents of more than 1.2 A (e.g. in the event of a short circuit), the output voltage is
automatically switched off and the green "Un KNX" LED extinguishes. If the bus line is overloaded or short-
circuited for longer than 10 seconds, the floating changeover contact switches to the fault position.
4.2.2 Mains voltage monitoring
In the event of a mains voltage failure, the bus line is supplied from the connected accumulator. No faults
will occur in the system. If the mains voltage fails, the potential-free changeover contact switches to the
fault position and the "AC Input" LED extinguishes. When the mains power is restored, the floating
changeover contact will return to its idle position and the LED will illuminate green. A fault message is not
logged.
4.2.3 Battery voltage monitoring
A battery test is automatically performed at intervals of approx. 15 minutes. A manual battery test can be
triggered by pressing the Reset button. If there is a battery fault (battery voltage low Vbat < 10.6V), the
potential-free changeover contact switches to the fault position and the "Battery" LED extinguishes. The
"Battery" LED will flash if a faulty battery or a battery with reversed polarity is connected. When the cause
for the battery fault is remedied, the floating changeover contact will return to its idle position and the LED
will illuminate green. The fault message is not saved.
The "Battery" LED is off if no battery is connected.
Note
In the worst case, it can take up to 15 minutes after the fault has occurred for the battery fault to be
displayed. Likewise, after the cause of the fault has been rectified, it may take 15 minutes for the floating
changeover contact to return to its idle position and for the LED to extinguish.

ABB i-bus®KNX
Function
SU/S 30.640.2 | 9AKK107992A4580_EN Rev. A 17
4.2.4 Diagnostic table
The status of the device can be determined by means of the LEDs and the potential-free changeover
contact. The table below shows the device state and what must be done to restore normal operation.
AC
Input
Battery
Vn
KNX
I Overload
Change-
over
contact
State of the device
What to do
Green
Green
Green
Off
Idle
Normal operation
Off
Green
Green
Off
Fault
Mains voltage failure,
battery operation
Connect mains supply
Green Off Green Off Fault
No battery, battery
error or battery
discharged
Check battery connection,
possibly replace battery
fuse or battery
Off
Off
Off
Off
Fault
Mains voltage failure
and no battery,
battery fault or battery
empty
Connect mains voltage,
charge battery (possibly
check connection or
replace battery)
Green Green - Red Fault Overload or short
circuit
In the event of a short
circuit, eliminate the cause
of the short circuit, in the
event of an overload,
reduce the number of
devices, acknowledge the
fault, perform a reset.
Off
Green
-
Red
Fault
Overload or short
circuit and mains
power failure, battery
operation
In the event of a short
circuit, eliminate the cause
of the short circuit, reduce
the number of devices in
the event of an overload,
switch on the mains
voltage supply,
acknowledge the fault,
perform a reset
Green Off - Red Fault Overload or short
circuit, no battery,
battery error or
battery discharged
In the event of a short
circuit, eliminate the cause
of the short circuit, reduce
the number of devices in
the event of an overload,
acknowledge the fault,
perform a reset, check the
battery connection,
replace the battery fuse or
battery if necessary
Green Green - Red Fault Overload, output
voltage OK
Reduce number of
devices, acknowledge
fault, perform reset
Off Green Green Red Fault Overload, output
voltage OK, mains
voltage failure, battery
operation
Reduce the number of
stations, connect the
mains power supply,
acknowledge the fault,
perform a reset
Green Off Green Red Fault Overload, output
voltage OK, mains
operation, no battery,
battery fault or battery
empty
Reduce number of
devices, check battery
connection, possibly
replace battery fuse or
battery, acknowledge
fault, perform reset
- Flashing
green
- - Fault Battery faulty or
battery connection
polarity reversed
Check battery connection,
possibly replace battery,
perform reset
Tab 7.: Diagnostic table

ABB i-bus®KNX
Mounting and installation
SU/S 30.640.2 | 9AKK107992A4580_EN Rev. A 19
5 Mounting and installation
5.1 Information about mounting
The mounting position for the device can be selected as required.
The electrical connection is made via screw terminals. The connection to the bus is made via the supplied
bus connecting terminal. The terminal designation is located on the housing.
After connecting the supply voltage, the unit is ready for operation.
DANGER – Severe injuries due to touch voltage
Electric feedback from different phase conductors can cause contact voltages and lead to serious
injuries.
Operate the device only in a closed housing (distribution board).
Disconnect all phases before working on the electrical connection.
5.2 Mounting on DIN rail
The device is fitted and removed without auxiliary tools.
Make sure the device is accessible for operation, testing, visual inspection, maintenance and repair.
Fig. 4: Mounting on DIN rail
1.
Place the DIN rail holder on the upper edge of the DIN rail and push down.
2.
Push the lower part of the device toward the DIN rail until the DIN rail holder engages.

The device is now mounted on the DIN rail.

Relieve the pressure on the top of the housing.
5.3 Connecting the floating changeover contact
To monitor fault messages, either the normally closed contact or the normally open contact of the floating
changeover contact or both can be used. In doing so, you can, for example, use an LED to indicate
whether the line is working properly or whether there is a malfunction.
2CDC072013F0015

ABB i-bus®KNX
Mounting and installation
20 9AKK107992A4580_EN Rev. A | SU/S 30.640.2
5.4 Connecting the Sealed Lead Acid Batteries SAK X
The Sealed Lead Acid Batteries SAK2, SAK7, SAK12 and SAK17 are used to back up the EIB / KNX
system voltage in combination with the Uninterruptible EIB/KNX Power Supply SU/S 30.640.X. The service
life of the Sealed Lead Acid Batteries is 5 years.
Up to two Sealed Lead Acid Batteries can be connected in parallel to the SU/S 30.640.X. Two identical
Sealed Lead Acid Batteries must be used in this case. Cable Set KS/K 4.1 must be used when connecting
a single Sealed Lead Acid Battery to the SU/S 30.640.X. When two Sealed Lead Acid Batteries are
connected, use Cable Set KS/K 4.1 for one battery and Cable Set S/K 2.1 for the other battery.
Note
Cable Sets KS/K 4.1 and KS/K 2.1 are not supplied with the device.
•Order number for KS/K 4.1: GHQ6301910R0001
•Order number for KS/K 2.1: GHQ6301910R0011
Cable Set KS/K 4.1 includes a replaceable fuse and a temperature sensor for temperature-controlled
charging voltage adjustment; Cable Set KS/K 2.1 includes a replaceable fuse.
ATTENTION –
When connecting one or two batteries connected in parallel, the temperature sensor must always be
connected.
When connecting the SAK2, SAK7, SAK12 and SAK17 batteries with the Cable Sets KS/K 4.1 and KS/K
2.1, make sure that the colored cable cores are wired correctly.
Connecting the KS/K 4.1 to the Power Supply SU/S 30.640.X
Fig. 4: Connecting the KS/K 4.1 to the Power Supply SU/S 30.640.X
Terminal 7 (Temp) Terminal 8 (150 mA) Terminal 9 (Code 650 mA) Terminal 10 (12 V)
KS/K 4.1
(1st battery)
White (+)
Temp. sensor
Yellow (-)
Temp. sensor
Black (-)
Battery GND
Red (+)
Battery 12 V
Tab. 6: Connecting the KS/K 4.1 to the Power Supply SU/S 30.640.X
9AKK107992A4480