WESTERSTRAND KNX User manual

KNX SLAVE CLOCK
Document:
DOK11027en01.doc
Author:
CF
User Manual
Date:
2018
06
11
Page:
1
(
7
)
WESTERSTRAND URFABRIK AB
P.O. Box 133 Tel. [phone] Internet:: http://www.westerstrand.se
SE 545 23 TÖREBODA Fax. [phone] E mail: [e-mail]
User Manual
Westerstrand KNX Slave Clock

KNX SLAVE CLOCK
Document:
DOK11027en01.doc
Author:
CF
User Manual
Date:
2018
06
11
Page:
2
(
7
)
WESTERSTRAND URFABRIK AB
P.O. Box 133 Tel. [phone] Internet:: http://www.westerstrand.se
SE 545 23 TÖREBODA Fax. [phone] E mail: [e-mail]
L st of contents
GENERAL DESCRIPTION .................................................................................................................................. 3
INSTALLATION .................................................................................................................................................. 3
KNX CONFIGURATION ...................................................................................................................................... 4
D ESCRIPTION OF G ROUP O BJECTS .................................................................................................................................. 5
D ESCRIPTION OF P ARA ETERS ....................................................................................................................................... 6
CLEANING THE CLOCK EXTERIOR .................................................................................................................. 7
TECHNICAL DATA ............................................................................................................................................. 7

KNX SLAVE CLOCK
Document:
DOK11027en01.doc
Author:
CF
User Manual
Date:
2018
06
11
Page:
3
(
7
)
WESTERSTRAND URFABRIK AB
P.O. Box 133 Tel. [phone] Internet:: http://www.westerstrand.se
SE 545 23 TÖREBODA Fax. [phone] E mail: [e-mail]
General descr pt on
Westerstrand’s KNX analogue slave clock provides the possibility to create a time distribution system with high
accuracy and high reliability through a KNX network.
The clock is intended for connection to a 2-wire bus that combines power supply and KNX communication.
A built-in microprocessor receives time telegram from a KNX master clock, reads the position of the hands, and
sets the clock to the correct time.
Installat on
1. When the clock is wall mounted use the cable inlets, see fig. 1.
2. easure and assemble an appropriate mounting screw (not included).
3. Connect the KNX bus to the black/red connector on the back of the clock.
4. The clock will start to reset itself to 12:00.
5. Configure the clock with the ETS software. The KNX connector, LED and programming buttons are
located on the back of the clock.
6. After the configuration is downloaded, the clock will again reset itself to 12:00, and then wait for a time
telegram. If the parameter “Send Time Request at Startup” has been enabled, the clock will send a time
request to the master clock. This requires that the master clock is configured to receive time requests.
7. As soon as a valid time telegram has been received, the hands will step forward to the correct time.

KNX SLAVE CLOCK
Document:
DOK11027en01.doc
Author:
CF
User Manual
Date:
2018
06
11
Page:
4
(
7
)
WESTERSTRAND URFABRIK AB
P.O. Box 133 Tel. [phone] Internet:: http://www.westerstrand.se
SE 545 23 TÖREBODA Fax. [phone] E mail: [e-mail]
KNX conf gurat on
The clock must be configured with ETS4/5 before use. The available group objects and parameters are listed
below:
Group Objects
ID Object Datapoint
Type
Direction Size Configuration Flags
U T RI W R C Priority
DateTime 9.00 Input 8 bytes 0 0 0 N/A Low
2 Time 0.00 Input 3 bytes 0 0 0 N/A Low
4 Time Request .00 Output bit 0 0 0 0 N/A Low
5 Timeout Alarm .005 Output bit 0 0 0 0 N/A Low
Parameters
Parameter Description Range Default
SCLOMode Clock Mode ReadOnly =Slave
System Clock
Timeout
Timeout period 3- 445 2 (minutes)
Clock Type Type of clock, Date and
time or only time
-Analogue
-Digital – Time only
-Digital – Time and date
Analogue
Time Format Datapoint type used -DPT 0.00
-DPT 9.00
DPT 9.00
Send Time Request
at Startup
Ask master clock for time
at startup.
-No
-Yes
No
Send Alarm at
Timeout
Send Alarm on KNX bus
at Timeout
-No
-Yes
No
Timeout Action Behaviour at timeout -Continue using local clock
-Reset to 2:00
Continue using
local clock

KNX SLAVE CLOCK
Document:
DOK11027en01.doc
Author:
CF
User Manual
Date:
2018
06
11
Page:
5
(
7
)
WESTERSTRAND URFABRIK AB
P.O. Box 133 Tel. [phone] Internet:: http://www.westerstrand.se
SE 545 23 TÖREBODA Fax. [phone] E mail: [e-mail]
Descr pt on of Group Objects
ID 1: DateT me
The clock receives time with datapoint type 9.00 and synchronises the local clock accordingly.
ID 2: T me
The clock receives time with datapoint type 0.00 and synchronises the local clock accordingly.
ID 3: Date
Not used in analogue clocks
ID 4: T me Request
To speed up installation, the clock can be set to send a time request at startup. If the master clock
can receive and respond to the request, it will immediately transmit the time. This way the installer
can quickly see if the clock is working or not.
ID5: T meout Alarm
The slave clock will expect time messages with the interval set with the parameter “System Clock
Timeout”. If there are no messages within this time, an alarm can be sent on the KNX bus. If
parameter “Enable Timeout Alarm” is set to “Yes”, the clock will set this group object to ‘ ’. When the
clock again receives time messages, it will reset the alarm by setting the group object to ‘0’.

KNX SLAVE CLOCK
Document:
DOK11027en01.doc
Author:
CF
User Manual
Date:
2018
06
11
Page:
6
(
7
)
WESTERSTRAND URFABRIK AB
P.O. Box 133 Tel. [phone] Internet:: http://www.westerstrand.se
SE 545 23 TÖREBODA Fax. [phone] E mail: [e-mail]
Descr pt on of Parameters
SCLOMode
SCLOMode is a read only parameter that indicates that the clock is a slave clock.
System Clock T meout
The timeout period is set using the System Clock Heartbeat parameter. The default value is 2
minutes. The timeout value should be set using the following formula:
System Clock Timeout= (System Clock Heartbeat x 2) +
Where System Clock Heartbeat is the transmission interval set in the master clock.
Clock Type
There are two types of slave clocks, the digital that can show both date and time and the analogue
which can only display time. For the analogue clock, select “Analogue”.
T me Format
The clock can receive time in two different formats, datapoint type 0.00 or 9.00 . The default
datapoint type is 9.00 .
Send T me Request at Startup
As default, the slave clock will not send any time requests. To force the slave clock to send a request
at startup, select “Yes”.
Send Alarm at T meout
Select ”Yes” if the clock should send an alarm on the KNX bus at timeout. The default is “No”.
T meout Act on
As default, the timeout action is “Free run”. This means that clock will keep running using the local
clock in the case of a timeout. If “Reset to 2:00”, the clock will instead reset itself to 2:00.

KNX SLAVE CLOCK
Document:
DOK11027en01.doc
Author:
CF
User Manual
Date:
2018
06
11
Page:
7
(
7
)
WESTERSTRAND URFABRIK AB
P.O. Box 133 Tel. [phone] Internet:: http://www.westerstrand.se
SE 545 23 TÖREBODA Fax. [phone] E mail: [e-mail]
Clean ng the clock exter or
A clean clock is always a more representative product. The exterior should regularly be cleaned to maintain the
clock in good condition.
Cleaning solutions
Never apply cleaning solutions directly to components. Solutions are always sprayed on a cloth, and then the
cloth is used to wipe the component. Almost any type of household cleaner can be used to clean the outside of
the clock case. The cleaner should not dissolve or scratch the finish. When rubbing alcohol is used with cotton
swabs, the swabs should be moist, not dripping with solution. Avoid ammonia-based cleaners.
Techn cal data
Temperature range: 0C to +40C.
Humidity: 0-95% non-condensing
Supply voltage: KNX bus voltage SELV DC 29V
KNX bus current
consumption: 30mA
Housing
aterial: ABS / Aluminium
Protection class: IP20
Size: Ø 400 mm
KNX Bus electrical safety: SELV DC 29V
Pollution degree: 2
Intended use: Indoor, wall mount
Part numbers: KX4041448-00: Grey, A-type dial
KX4041448-90: White, A-type dial
KX4043448-00: Grey, H-type dial
KX4043448-90: White, H-type dial