• Astronomical Time Switch in 35mm
• Latitude/Longitude precise to the minute with time zone
• Sunrise/Sunset or Twilight rise/set trigger modes
• Ease of Programming & Navigation
• DST, Offset, OFF Hours, Weekly OFF features
• 12/24 Hour display format
• 6 years Battery reserve
• Easy Manual Override & Keypad Lock feature
• Ideal for Outdoor & Street lighting applications
Cat. No.
T2DDT7
Parameters
Supply Variation
Frequency
Power Consumption
110 - 240 VAC
50/60 Hz
6 VA
Programming
Number of Operating Modes
Description of Modes
3
1 min
• AUTO
• ON AUTO
• AUTO OFF
As per user defined program settings
Instant ON up to next Auto Event
Instant OFF up to next Auto Event
-
-
-
T2DDT7
T2DDT8
110 - 240 VAC, Astronomical Time Switch - Astro Mini, 1 C/O
110 - 240 VAC, Astronomical Time Switch - Astro Mini, 1 C/O (With Pre-defined City codes)
Description
Cat. No.
Clock Accuracy
Power Reserve from Factory
± 2 s/day max. over the Operating Temperature range
16A (For 'NO') & 5A (For 'NC') @ 240 VAC / 24 VDC (Resistive),
1 C/O
4
3x10
4
5x10
Temperature
Storage
Operating Temperature
-10°C to + 60°C
-10°C to + 55°C
6 Years
Inductive (cos ø = 0.6) :- 6 A @ 250 VAC
ORDERING INFORMATION
Degree of Protection
IP 20 for Terminals, IP 40 for Enclosure
Applications
Utilization Category
AC - 15
DC - 13
Rated Voltage (Ue): 120/240 V, Rated Current (Ie): 3/1.5 A
Rated Voltage (Ue): 24/125/250 V, Rated Current (Ie): 2.0/0.22/0.11 A
Humidity (Non Condensing)
95% (Rh)
Certification
Relay Output
Contact Rating
Electrical Life
Mechanical Life
Output
Enclosure
Flame Retardant UL94-V0
Dimension (W x H x D) (in mm)
36 X 90 X 65
LED Indication
Red LED Relay ON
110 g
Weight (unpacked)
Mounting
Base / DIN rail
Minimum Switching Time
Display
3 Lines Text LCD
Trigger Modes
Offset
OFF Hours
Weekly Off
DST
Based on Latitude/Longitude precise to the minute with time-zone
Sunrise/Sunset or Twilight Rise/Set
1 min to 10 hr 59 min (Programmable)
Programmable
User Defined
User Defined
Street lighting applications in cities, industrial townships, university campuses
Lighting automation in sports complex, hotels, parks & other outdoor applications.
Supply Voltage ( )
-20 % to +10% (of )
RoHS
Compliant
Astronomical Time Switch
EMI / EMC
Harmonic Current Emissions
IEC 61000-3-2
Ed. 3.0 (2005-11) Class A
ESD
IEC 61000-4-2
Ed. 1.2 (2001-04) Level II
Radiated Susceptibilty
IEC 61000-4-3
Ed. 3.0 (2006-02) Level III
Electrical Fast Transients
IEC 61000-4-4
Ed. 2.0 (2004-07) Level IV
Surges
IEC 61000-4-5
Ed. 2.0 (2005-11) Level IV
Conducted Susceptibilty
IEC 61000-4-6
Ed. 2.2 (2006-05) Level III
Voltage Dips & Interruptions (AC)
IEC 61000-4-11
Ed. 2.0 (2004-03) Level All 7 Levels
Conducted Emission
CISPR 14-1
Ed. 5.0 (2005-11) Class A
Radiated Emission
CISPR 14-1
Ed. 5.0 (2005-11) Class A
Environmental
Cold Heat
IEC 60068-2-1
Ed. 6.0 (2007-03)
Dry Heat
IEC 60068-2-2
Ed. 5.0 (2007-07)
Vibration
IEC 60068-2-6
Ed. 7.0 (2007-12) 5g
Repetitive Shock
IEC 60068-2-27
Ed. 4.0 (2008-02) 40g, 6ms
Non-Repetitive Shock
IEC 60068-2-27
Ed. 4.0 (2008-02) 30g, 15ms
CITY CODE CHART*
Setting AM/PM (12 Hour) or 24 Hour Display
Cat. No. :
T2DDT8
T2DDT7
ASTRONOMICAL TIME SWITCH
TERMINAL DETAILS :
CONNECTION DIAGRAM:
OVERALL DIMENSIONS:
Use Copper Conductors Only, 60/75° C.
L
N
15
TS
N
P
RoHS
Base / Din Rail Mounting
68.5
45.0
36.0
100.0 C/C
90.0
16
15
18
L
N
MAN
RST
ESC
OK
DIN RAIL
35mm
65.0
17.0
0.54 N.m (5 Lb.in)
Terminal screw - M2.5
1 x 0.2....3.3 mm
Solid Wire
1 x 24 to 12
3.5 mm
AWG
NO
NC
18
16
LOAD
NOTE:
CAUTION:
FAQ’s (FREQUENTLY ASKED QUESTIONS):
Q.6:
I want to switch OFF the output of Astro for a particular time
interval without affecting the main program. Which feature
should I use?
A.6:
You can use ‘OFF-Hours’ feature to switch OFF the output for
a particular time period. To set OFF Hour feature, select‘OTH’
menu and then select ‘OFHR’.
Q.2:
What is Manual switching (override)? When do we use it?
A.2:
When it is desired to switch ON/OFF the output before the
actual event i.e. (ON/OFF event), manual override can be used.
Press the MAN key for 3 s to toggle between ON A
uto & Auto
mode when relay (output) is OFF and to toggle between Auto OFF
or Auto mode when the output is ON.
Q.3:
What should I do to reset all settings and Clock?
A.3:
Press the Reset (RST) key. All settings will set to default
and the clock will be reset to 00:00 & the date will be set to
01/01/2000.
Q.4:
How should I change clock format from 12 h to 24 h?
A.4:
Press ‘ ’ & ‘MAN’ key to switch from 12 h to 24 h clock
format and vice versa.
Q.5:
How does ON AUTO and AUTO OFF feature help?
A.5:
ON AUTO / AUTO OFF feature is used to immediately switch
the output ON / OFF respectively, overriding the current output
condition. If the output ON time is 6:15 p.m. & we w ant to switch
ON the output earlier, at 5:30 p.m. then set the mode as ‘ON
Auto’. The output will be switched ON immediately. The mode will
automatically change to ‘Auto’ at 6:15 p.m. which is the next auto
event. Similarly the output can be switched OFF earlier than the
output OFF time using the Auto OFF feature.
Q.1:
In the event of power failure, do I lose all settings in the
device?
A.1:
No, the battery has a power reserve of approx 6 years at
operating temperature range. In the absence of mains supply,
we can program the device as per the requirement. However
,
during power failure, the relay or LED will not operate but the
relay status can be observed on the screen.
Q.7:
How can I switch the output ‘ON’ 30 min after sunset?
A.7:
Use the Offset feature to change the ON time or OFF time of
the output. To set offset, select ‘OUT’ menu and then select
‘OFSR’ to set offset for rise & ‘OFSS’ to set offset for set. To switch
ON the output 30 min after sunset, set ‘OFSS’ as ‘POS’ (positive)
and enter the time as 30 min.
Q.8:
I'm using Astro for my company's street lights and I want
these lights to be switched OFF from Saturday ev ening to
Monday morning. Which feature should I use?
A.8:
You can use the Weekly-OFF feature for this purpose. To use
this feature, select ‘OTH’ menu and then select ‘WOFF’. Then
select ‘SA’ as the start day. Enter the start time in hours and
minutes. Similarly, enter ‘MO’ as the end day and time in hours
and minutes. If you have selected same day & time for start as
well as end, then ‘WOFF’ is not applicable.
1. Always follow instructions stated in this manual.
2. Before installation ensure that the specifications agree with
the intended application.
3. Installation should be done by skilled electrician only.
4. Inductive loads should be equipped with interference
supressors like varistors, RC snubbers.
5. Use of contactors is recommended if load exceeds the
contact rating.
1. If DST is applicable in your region, first set the DST and
then set the clock.
2. Due to properties of some lamps, it might take a few
minutes for the lamps to illuminate completely even after
the output has been switched ON.
3. Product innovation being a continuous process, we reserve
the right to alter specifications without prior notice.
Viewing the Output ON & OFF Time for the Day
ON
Ouptut OFF
Time
Output ON
Time
AUTO
ON
OFF
00
:
00
07
:
07
18
:
10
SA
To view OFF & ON time for the day, press ‘ ’ & ‘ ’
respectively. This is possible only when the device is in run
mode & not in edit mode.
To change the time format from 12 h to 24 h & vice versa,
press ‘ ’ & ‘MAN’ keys simultaneously.
To view the city code chart number, press ‘ESC’ key 4 times.
In case the city code chart is lost or misplaced, order the city
code chart by sending an email to:
or
or
download it from:
www.gicindia.com
®
Mini
