GIC ASTRO MINI T2DDT7, ASTRO MINI T2DDT8 Easy Manual

• 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

TemperatureStorage

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 Auto & 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 want 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 evening 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:

[e-mail] or [e-mail] or

download it from: www.gicindia.com

®

Mini

ON

Start - 3rd Sunday of March

Time Zone: (GMT - 6:00)

Latitude: N 42° 08'; Longitude: W 87° 50’

Date: 1 January 2010; Time: 11:30 A.M.

End - 4th Sunday of October

DST:

SETTING THE ASTRONOMICAL PARAMETERS (EXAMPLE: NORTH BROOK)

End Hour

End Minute

End Day

E

E

E

hh:00

Mm:00

Day

Start MinuteStart Hour

Start Day

S

S

hh:00

Mm:00

Day

SU

S

Positive

Negative

PoS

Ne6

oUT

Twilight

Offset Set

OFF-Hour

Weekly-OFF

LoC

Minute

Mm:00

OK

Minute

Mm:00

OK

Minute

Mm:00

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

t

t

t

t

t

t

TULt

ofss

Disabled

No

Enabled

Yes

Offset Rise

ofsr

Negative

Ne6

Minute

Mm:00

PoS

Positive

YearDate

Month

Date

Date

Yy:10 Mt:01 Dt:01

Hour

Time Minute

Time

hh:11

Mm:30

Dst

No

AUTO

00:00

Dt:tm

SA

OKOK

OK

OK

OK

OK

OKOK

OK

OK

t

t

t

t

t

Enabled

Disabled

Start Week Start Month

End month

End Day

Yes

S S

EE

We:03

Mt:03

Mt:10Day

SU

L018

City Code*

* Indicates this option is available only

for Cat. No. T2DDT8.
For specific city codes, programming
procedure refer city code chart

OK

t

OK OK

OKOK

OK

Lat

Lon6

North

Nth

Degree

D

0 42

Minute

M

08

East

East

West

Degree

Minute

West

D

0 87

M

Latitude

6mt

Hour

MinuteNegative

hh:06

NE6

Mm:00

GMT

Longitude

OK

OKOKOK

t

t

t

Start Minute

Start Hour

End Hour

S

S

hh:00

hh:00

Mm:00

e

oth

OFhr

woff

DTTM (Date - Time) LOC (Location)OUT (Output)OTH (Other Features)

BASIC FEATURES:

Offset:

Offset is used to switch ON the output before or after the
sunset or switch OFF the output before or after sunrise. This
can be achieved through the ‘oFSr’ (Offset Rise) and ‘oFSS’
(Offset Set) parameters in the OUT menu. The range for the
Offset is +/- 00 to 99 minutes.

Trigger Modes:

The output can be programmed to switch OFF/ON either at
sunrise/sunset or at twilight rise/set. If the trigger mode
‘Twilight’ in the ‘OUT’ menu is set as ‘Yes’, then the output will
be switched OFF/ON at twilight rise/twilight set. If it is set as
‘No’, then the output will be switched OFF/ON at
Sunrise/Sunset.

Day-light Saving Time (DST):
ASTRO provides settings to easily define the DST start and end
period time to effectively manage the shifting of clock, year
after year without any manual intervention.

Weekly OFF:
The Weekly Off feature is used to switch OFF the output during
Weekend's or Weekly Off days. This feature allows to define
the Weekly OFF days including the start and end time.

OFF-Hours:

The OFF-Hours feature is used to switch OFF the output for a
particular time period on a daily basis.
For e.g. If the Off Hours programmed are from 23:00 to 02:00,
then the output will be switched OFF for these 3 hours
everyday.

City Code*

SU

OK

OK

OK

Start Day

End Week

We:04

OK

E

S

Day

SU

50

End Minute

e

Mm:00

4

ON

OFF

AUTO

88:88

OK

MAN

RST

PM

SU

3

b

b

ESC

c

c

WE

MO

TU

SA

FR

TH

OFF

ON

d

1

2

DISPLAY:

Cod

9

Following are the four Main Menus & listed below them are the
Sub-menus: To Enter in Menu, press OK key & to scroll within
menu, press ‘ ’ & ‘

’.

i. LOC (Location):

a. Code*
b. Lat
c. Long
d. GMT

iii. OUT (Output):

a. TWLT (Twilight Mode)
b. OFSR (Rise Offset)
C. OFSS (Set Offset )

ii. DTTM (Date - Time):

a. DST
b. Date
c. Time

iv. OTH (Other Features):

A. OFHR (Off Hours)
B. WOFF (Weekly Off)

t

PROGRAMMING PROCEDURE:

Important:

If DST is applicable at the place of installation of the
product, then first enable the DST by selecting ‘Yes’
option for DST in the ‘Clock’ menu and then set the DST
period.

2)At the time of dispatch the clock has been set to GMT. So to set
the clock to the local time, just change the time zone (GMT) in
the ‘LOC’ menu to the local time zone.
For e.g. If you are installing the product in India then just
change the GMT to ‘+5:30’. The clock will be automatically set to
the local time.

This feature will not wok if the product is reset by pressing the
reset key. In such a case the user will have to manually set the
clock as well as GMT.

6) To set other parameters like Weekly OFF & OFF Hours, select
'OTH' menu using 'OK' key.

1)Press 'OK' key to enter the Main Menu
Use ' ' & ' ' keys to make selection between 'LOC', 'DT:TM',
'OUT' & 'OTH' and again press OK to select a particular option.

5) To set Trigger mode & Offset, select 'OUT' from the main
menu using 'OK' key and then use ' ' & ' ' keys to select
between 'Twilight', 'Rise offset' & 'Set offset'. Use 'OK' key for
selection & again ' ' , ' ' keys to change parameter value.

4) Set the Latitude & Longitude as per the place of installation.
To set these parameters, select 'LOC' from the main menu. Use
' ' & ' ' keys to make selection between North & South for
latitude and East or West for Longitude. Set the values by using
' ' & ' ' keys and then press OK k

ey to confirm the v

alues.

3)To set the clock, select 'DT:TM' from the main menu by
pressing 'OK' key. Now use ' ' & ' ' to make selection between
'DST', 'Time' & 'Date'. Use 'OK' key for selection & ' ' , ' 'keys
to change parameter value and again press OK to confirm the
changes.

1. AUTO: As per set program.

2. ON AUTO: Manual ON up to next auto event.

3. AUTO OFF: Manual OFF up to next auto event.

MODE DESCRIPTION:

MENU:

ON

To lock the keypad, press the ‘ ’ and the ‘ESC’ key
simultaneously for 3 seconds.

‘bLoC’ will appear on the screen indicating that the keypad has

been locked.

When the keypad is locked none of the parameters can be
edited, only the mode can be changed from ‘Auto’ to ‘ON Auto’
and ‘Auto OFF’.

To unlock the keypad, repeat the same procedure.

The keypad can be locked only in Run mode and not in Edit mode

KEYPAD:

KEYPAD LOCK:

Relay Status Indication
d : DST Enabled;
Day of week display

Hours/minute indication (HH:MM)

: :

: :

: :

: :

2 2

3 3

4 4

11

Mode

Menu scroll up / Increase parameter value OR
To view output OFF time in Standby mode

Menu scroll down / Decrease parameter value OR
To view output ON time in Standby mode

To enter the programming mode, select a particular
parameter to edit and apply the changes.

Exit the programming mode OR

12/24 hour clock mode selection alongwith MAN key

Previous Menu / Undo Change OR
To lock / unlock keypad alongwith key

Reset Key to Reset programs or settings to the
default

Relay 'ON/OFF’ LED indication.

Manual Override Key OR
12/24 clock mode selection alongwith key

MAN

ESC

OK

RST

: :

: :

: :

: :

::

::

::

::

To change the mode from ‘Auto’ to other modes & vice-versa,
press ‘MAN’ key for 3 seconds.
The Auto option at the bottom of the screen will change to
‘ON Auto’ or ‘Auto OFF’ depending on the output status.