ABB DWTL1 User manual

DIGITAL WEEKLY ASTRONOMICAL
TWILIGHT SWITCH WITH PROBE
User Manual
DWTL1

English
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User manual DWTL1
Index
■Technical features page 3
■Safety warnings page 4
■Dimensions page 4
■Wiring diagrams page 5
■Display and keyboard description page 6
■Initial operation page 7
■Start page (or main) page 8
■Manual switching page 11
■Menu description page 12
■Settings menu page 14
Language setting menu page 15
Date setting menu page 16
Time setting menu page 17
Daylight saving time (DST)/winter time (CET)
change setting menu page 18
Astronomical coordinates setting menu page 20
Random switchings setting menu page 22
Cycle switchings setting menu page 23
Protection PIN setting menu page 24
■Program menu page 25
Program menu: new page 29
Program menu: new daily timed page 30
Program menu: new weekly timed page 31
Program menu: new holiday timed page 32
Program menu: new astro night page 34
Program menu: new astro daily page 38
Program menu: new astro weekly page 39
Program menu: new astro holiday page 40
Program menu: check page 42
Program menu: modify page 44
Program menu: delete page 46
■Bluetooth page 47
■Twilight menu page 49
■Hour couter menu page 51
■Reset menu page 53
■Firmware menu page 55
■Error signals page 56
■Battery management page 57
■Reference standards page 57

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User manual DWTL1
USER MANUAL
Digital electronic switch with astronomical function and with external luminosity probe particularly indicated for the management
of lighting systems, luminous signs, etc.
DWTL1 is equipped with one relay. Channel can be associated with a different programming (time or astronomical). DWTL1 time switch has
a Bluetooth interface that allows it to be coupled with mobile devices (smartphone or tablet). Thanks to the free app that can be downloaded
from the AppStore and Google Play stores, it is possible to program and make settings directly on your smartphone, and then transfer all
the data to the time switch. The backup battery allows you to keep the settings even in case of black-out and can be replaced through the
cover on the back of the time switch. DWTL1 time switch is device of electronic type that perform actions of 1B type, intended to operate in
environments with III overvoltage category and pollution degree 2 in accordance with EN 60730-1 standard.
Code Model Description
2CSM222491R1000 DWTL1 Digital weekly astronomical twilight switch with probe
2CSM222481R1000 DWS External light sensor (Probe)
Astronomical operation during
the night and with daytime
switching on thanks to the
twilight probe if the brightness
falls below the threshold.
Programmable twilight
operation with switching on
when the brightness falls
below the threshold and only if
the programming requires it.
OFF
ON
678
678
Sunset Sunrise
Probe
Program
Relay
status
Brightness > threshold+hysteresis Brightness < threshold
OFF
ON
678
678
Brightness > threshold+hysteresis Brightness < threshold
Probe
Program
Relay status
DWTL1 can be configured as a switch “astronomical with probe” or as “programmable twilight”. The following diagrams show the operation
in the two cases. Attention: the device leaves the factory configured as “astronomical with probe” and the set program 1.

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User manual DWTL1
TECHNICAL FEATURES
• Power supply: 230 Vac (-15% ÷ +10%) 50/60 Hz
• Power consumption: 6 VA (2W)
• Output: 1 monostable relay with change-over contact from
16 (10) A / 250 Vac
• Parameters of the twilight probe:
- threshold: 3 ÷ 500 lux
- hysteresis: 1 ÷ 50 lux
- delay: 1 second ÷ 30 minutes
• Minimum interval for nighttime switchings off: 30 minutes
• Summer/winter time automatic update (removable)
• Active backlighting of the display with mains power
• Replaceable backup battery of CR2032 type
• Terminals for cables with maximum cables section of 2.5 mm2
• Storable programs: 120
• Bluetooth BLE 4.2 communication interface (active with mains
power supply)
• Operating frequency band: 2400-2483.5 MHz
• Maximum transmitted radiofrequency power: 4 dBm
• Operating temperature: -20 ÷ +50 °C
• Operating temperature of the twilight probe: 0 ÷ +50 °C
• Storage temperature: -25 ÷ +70 °C
• Storage temperature of the twilight probe:-20 ÷ +70 °C
• Operating humidity: 20÷90% non condensing
• Container: 2 DIN modules
• Protection degree: IP20
• Protection degree of the twilight probe: IP65
• Insulation: reinforced between accessible parts (front)
and all the other terminals

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User manual DWTL1
SAFETY WARNINGS
nDuring product installation and operation it is necessary to
observe the following instructions:
1) The instrument must be installed by a qualified person,
strictly in observance of the connection diagrams shown in
this manual.
2) After installation inaccessibility to the terminals without
using dedicated tools must be guaranteed.
3) Before accessing the connection terminals, make sure that
the leads are not live.
4) Do not connect or feed the instrument if any part of it is
damaged.
5) The product must be installed and activated in compliance
with current electric systems standards.
6) Do not use the instrument for anything other than the
indicated purpose.
7) In the electrical system upstream of the device must be
installed a protection device against the overcurrents
8) The product can be used in environments with overvoltage
Category III and Pollution degree 2, according to the
Standard EN 60730-1
9) The access to the device must be limited and the default
device PIN and Bluetooth password must be changed in
order to avoid tempering of programs of relays.
DIMENSIONS (mm)
35
87
65

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User manual DWTL1
WIRING DIAGRAMS
DWTL1

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User manual DWTL1
DISPLAY AND KEYBOARD DESCRIPTION
General indications
Time indication
Channel 1
: active manual program
+ : blocked switchings
+ : active random switchings
+ (flashing) : active cycle switchings
: active holiday program
: active pulse program
Day of the week (DAY) indication
Turn on the display
Access the menu
ESC (one level back)
 “C1”: decrease datum/previous menu/ switching channel 1/
lock channel 1
“C2”: increase datum/next menu
 Confirm selection
 Hardware reset
“Ok” + “C1” (3 sec): active random switching on channel 1
“”+ “C1” (3 sec): active cycle switching on channel 1
C2
C1

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User manual DWTL1
INITIAL OPERATION
• Once out of the package, DWTL1 is off: press the key and
wait a moment before activating the display
• The set language is English. To change it, press the key for
at least 3 seconds. Choose among: German, English, Spanish,
French, Italian, Russian and confirm with .
• Make connections following the diagrams on page 5 of this
manual
• Power DWTL1: the backlighting turns on permanently.
• The presence of the backup battery allows the DWTL1 to have
updated date and time.
To make the other settings follow the following steps:
Date - format: DD/MM/YY
- 1st day of the week: Monday
Astronomical coordinates - country: France
- city: Paris
- latitude: North (48° 51’ 36”)
- longitude: East (2° 21’ 00”)
Daylight Saving time (DST)
change: active
- start of daylight saving time (DST):
last Sunday of March at 02:00
o’clock
- end of daylight saving time (DST):
last Sunday of October at 03:00
o’clock
Time correction: - sunrise: +0:00
- sunset: +0:00
Time zone: +1:00 UTC
Parameters of the twilight
probe:
- threshold: 100 lux
- hysteresis: 10 lux
- delay: 1 second
Random switchings: - minimum: 1 minute
- maximum: 5 minutes
Cycle switchings: - ON duration: 1 minute
- OFF duration: 1 minute
PIN protection: disabled (---)
Bluetooth: disabled (Password: 000000)

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User manual DWTL1
START PAGE (or main)
Information messages
- day of the week
- product identification code and serial number
- battery status (only if discharged)
- *
* Only if DWTL1 is not powered by mains.
In this condition the backlighting is not active and the relay is in
off status.
NOTE: Bluetooth interface is active only when DWTL1 displays the
start page (main) and only if it’s mains power supplied. Therefore,
to transfer programs from and to the times witch it is necessary to
respect these conditions.
• Press the key:
to access the menu of DWTL1
C1
and
C2
to change channel 1
to display the Bluetooth signal level or the calculated
sunrise and sunset times**
** The displayed times take into account possible entered values
of correction (see page 18)
if the display shows means that the calculated sunrise
time is after the sunset time if the display show means
that the calculated sunrise time is before 00:00 or that the
calculated sunset is at 23:59
NOTE: The device is supplied with deactivated Bluetooth
interface. To activate it, access Bluetooth menu (see page 45).
information messages
date
hour
day of the week
relay 1 status