3
MD0505KE180712
Do not touch or contact the input/output terminals because they may cause electric shock.
• If there is a possibility of an accident caused by errors or malfunctions of this product,
install external protection circuit to prevent the accident.
• This product does not contain an electric switch or fuse, so the user needs to install a
separate electric switch or fuse externally. (Fuse rating : 250 V 0.5 A)
• To prevent defection or malfunction of this product, supply proper power voltage in
accordance with the rating.
• To prevent electric shock or malfunction of this product, do not supply the power until
the wiring is completed.
• Since this product is not designed to explosion-protective structure, do not use it at the
places which have flammable or explosive gas.
• Do not disassemble, modify, revise or repair this product. This may cause malfunction,
electric shock or fire.
• Attach or detach this product while the power is off. Otherwise, it may cause malfunction
or electric shock.
• It you use the product with methods other than specified by the manufacturer, there may
be bodily injuries or property damages.
• Due to the danger of electric shock, use this product installed onto a panel while an
electric current is applied.
• The contents of this manual may be changed without prior notice.
• Please check whether the product you purchased is the exactly same as you ordered.
• Please check whether the product has no damage or abnormality during delivery.
• Do not use the product at the places which have corrosive
(especially noxious gas or ammonia) or flammable gas.
• Do not use this product at any place with direct vibration or impact.
• Do not use this product at any place with liquid, oil, medical substances, dust, salt or iron
contents. (Pollution level 1 or 2)
• Do not polish this product by substances such as alcohol or benzene.
• Do not use this product at any place with excessive induction trouble, static electricity or
magnetic noise.
• Do not use this product at any place with possible thermal accumulation
due to direct sunlight or heat radiation.
• Install this product at place under 2,000 m in altitude.
• When the product gets wet, the inspection is essential because there is
danger of an electric leakage or fire.
• If there is an excessive noise from power supply, it is recommended to
use insulating transformer and noise filter. The noise filter must be
attached to the panel grounded and wiring between the filter output side
and power supply terminal should be as short as possible.
• If gauge cables are arranged too closely, the effect on noise may occur.
• Do not connect anything to the unused terminals.
• After checking polarity of terminal, connect wires to the right position.
• When this product is connected to a panel, use a circuit breaker or switch approved by
IEC947-1 or IEC947-3.
• Install the circuit breaker or switch at near place for convenient use.
• For the continuous and safe use of this product, the periodic maintenance is recommended.
• Some parts of this product have limited life span, and others are changed by their usage.
• The warranty period of this product including parts is one year if this product is properly used.
• When power is on, the preparation period of contact output is required. In case of using
signals of external interlock circuit, use a delay Relay.
Danger
Warning
Caution
Suffix code
Specifications
Features
• ON time and OFF time individual setting
• Output operation control by external ‘Start’ input signal
• Key-lock function to prevent key malfunction
• Buzzer output by Key input
Model
Code
Information
TT7H-
□ □ □ □ Digital twin timer, 72 (W) × 72 (H) ㎜
Setting
division
P
Preset (Exclusive for setting)
Displayable digit 4
4 digits (9999)
Control output
1
1-stage output
External connection
A
9 pin terminal type (external input)
Model
TT7H-P41A
Power voltage
220 V a.c. 60 Hz
Voltage fluctuation
±10 % of the power voltage
Power consumption
About 9.6 VA (220 V a.c. 60 Hz)
Display type
ON time display : Red FND 4 digits (character height 18.7mm)
OFF time display : Red FND 4 digits (character height
14.5mm)
External Connection type Terminal type
Control
output
Contact
composition Output : Instantaneous SPDT (1c)
Contact
capacity
NO contact : 250V a.c .5A resistive load,
NC contact 250 V a.c. 2 A resistive load
Input
type
Non-voltage
input
Impedance when disconnected : Max 1 KΩ, Remaining
voltage when disconnected : Max 2 V
Impedance when opened: Min 100 KΩ
Min. single
time
START
Min 1s
Setting type
Recognized at all times
(possible to modify when applying electric current)
Time error
Repeated error (Max ±0.3 %), Set error (Max ±5 %)
Voltage error (Max ±0.5 %), Temperature error (Max ±2 %)
Relay life
expectancy
Machinery
Min 1,000 million
Electronic
Min 10 million (250 V a.c. 3 A resistive load)
Insulation resistance
Min 100 MΩ (Between current-carrying terminals and exposed
non-current-carrying metal parts)
Dielectric strength
2000 V a.c. 50/60Hz for 2 min (between current-carrying
terminals and exposed non-current-carrying metal parts)
Noise immunity
Square wave noise due to the noise simulator
(pulse width : 1 us), ±2 kV (within operation power terminal)
Vibration
Resistance
10 - 55 Hz (cycle for 1min) Peak amplitude 0.75 mm for
1 hour each in X, Y and Z direction
Error
10 - 55 Hz (cycle for 1 min) Peak amplitude 0.5 mm for 10
min each in X, Y and Z direction
Shock
Resistance
300 ㎨ 3 times each in X, Y and Z direction
Error
100 ㎨ 3 times each in X, Y and Z direction
Ambient temperature -10 ~ 55 ℃ (without icing)
Storage temperature
-20 ~ 65 ℃ (without icing)
Ambient humidity
35 ~ 85 % R.H.
Weight
Approx. 300g (Included the weight of box)
Dimensions and panel cutouts
[Unit : mm]
Safety information
Please read warnings and safety carefully before using it.
The manual is distinguished by danger, warning, and caution according to importance.
It indicates an emergency situation which brings a death or serious
injury if you don’t follow it.
It includes a content to indicate a possibility for death or a serious
injury if you don’t follow it.
It includes a content to indicate a possibility to bring a slight wound
or damage in property if you don’t follow it.
Danger
Warning
Caution
HEAD OFFICE
HANYOUNGNUX CO.,LTD
28, Gilpa-ro 71beon-gil, Michuhol-gu,
Incheon, Korea
TEL : (82-32)876-4697 FAX : (82-32)876-4696
http://www.hynux.com
Digital twin timer
TT7H
Thank you for purchasing HANYOUNG product.
Please check whether the product is the exactly same as you ordered.
Before using the product, please read this instruction manual carefully.
Please keep this manual where you can view at any time
INSTRUCTION MANUAL
