1
Model
Code
Content
LT4
һ
LCD timer, 48 (W) X 48 (H) mm
Control
output
-
time limit 2c, time limit 1c + instantaneous 1c
S
time limit 1c
Model
LT4
LT4S
Power voltage
24 - 240 V a.c. 50/60 Hz, 24 - 240 V d.c. (dual usage)
Voltage fluctuation rate
± 10 % of power voltage
Power Consumption
4 VA max. (24-240 V a.c. 50/60 Hz)
1.6 W max. (24- 240 V d.c.)
4.5 VA max. (24-240 V a.c. 50/60 Hz)
2 W max. (24-240 V d.c.)
Display
Wide viewing angle negative LCD display
Display mode
Addition and subtraction
Display digits
4 digits
Character height
PV display: 14mm, SV display: 8.5mm
Return time
100 ms max.
External connection
socket 8 pin
Operating time range
0.01 sec ~ 9999 hour
External
input
Input signal
-
START, INHIBIT, RESET
Input
method
-
non-voltage input, impedance during short
circuit : 1 kΩ max.
Residual voltage during short circuit : 0.5 V
max.
impedance during open : 100 kΩ min.
Minimum input time
-
START, INHIBIT,
RESET min. input signal width
1ms / 20ms selection
Operating time error
Power START : ± 0.01 % ±0.05 sec max.,
Signal START : ± 0.005 % ±0.03 sec max.
Control
output
Operation
mode
POND / PFKF / PFKN / PINT /
TWON / TWOF / S-D
SOND / SFKF / SINT / SNFN /
SNFF / SOFD / S.OND / S.FKN /
S.INT / S.ODR
Contact
configuration
time limit 1c
time limit 2c, instantaneous 1c
+ time limit 1c
Contact
capacity
250 V a.c. 5A resistive load
250 V a.c. 3A resistive load
(N.O.:5A, N.C.:3A)
Relay life
Mechanical life : 10,000,000 times min.,
Electrical life : 100,000 times min. (250 V a.c. 5A resistive load)
Insulation resistance
100 MΩ min. (500 V d.c. mega standard,
conductive part terminal and exposed unfilled metal)
Dielectric strength
2,000 V a.c. 60 Hz for 1 minute (conductive part terminal
and exposed unfilled metal)
Noise immunity
± 2 kV (among operation power terminals,
pulse width = 1 us, square-wave noise by noise simulator)
Vibration resistance
10 - 55 Hz (for 1 minute) single amplitude 0.5 mm
X, Y, Z each direction, 2 h
Shock resistance
300 ㎨ (30G) X, Y, Z each direction, 3 times
Ambient temperature
-10 ~ 55 ℃ (with no icing)
Storage temperature
-25 ~ 65 ℃ (with no icing)
Ambient humidity
35 ~ 85 % R. H.
MD1101E170927
Specification
• Any use of the product other than those specified by the manufacturer may result in
personal injury or property damage.
• If there is a possibility that a malfunction or abnormality of this product may lead to a
serious accident to the system, install an appropriate protection circuit on the outside.
• Since this product is not equipped with a power switch and fuse, install them separately
on the outside (fuse rating: 250 V a.c. 0.5 A).
• Please supply the rated power voltage, in order to prevent product breakdowns or
malfunctions.
• To prevent electric shocks and malfunctions, do not supply the power until the wiring is
completed.
• The product does not have an explosion-proof structure, so avoid using it in places with
flammable or explosive gases.
• Never disassemble, modify, process, improve or repair this product, as it may cause
abnormal operations, electric shocks or fires.
• Please disassemble the product after turning OFF the power. Failure to do so may result
in electric shocks, product abnormal operations or malfunctions.
• Please use this product after installing it to a panel, because there is a risk of electric shock.
WARNING
• The input/output terminals are subject to electric shock risk. Never let the input/output
terminals come in contact with your body or conductive substances.
DANGER
• The contents of this manual may be changed without prior notification.
• Please make sure that the product specifications are the same as you ordered.
• Please make sure that there are no damages or product abnormalities occurred during shipment.
• Please use the product in places where corrosive gases (especially harmful gases,
ammonia, etc.) and flammable gases are not generated.
• Please use the product in places where vibrations and impacts are not applied directly.
• Please use the product in places without liquids, oils, chemicals, steam, dust, salt, iron, etc.
• Please do not wipe the product with organic solvents such as alcohol, benzene, etc.
(use neutral detergents).
• Please avoid places where large inductive interference, static electricity, magnetic noise
are generated.
• Please avoid places with heat accumulation caused by direct sunlight, radiations, etc.
• Please use the product in places with elevation below 2000 m.
• When water enters, short circuit or fire may occur, so please inspect the product carefully.
• When there is a lot of noise from the power, we recommend to use insulation
transformer and noise filter. Please install the noise filter to a grounded panel or
structure etc. and make the wiring of noise filter output and product power supply
terminal as short as possible.
• Tightly twisting the power cables is effective against noise.
• Do not wire anything to unused terminals.
• Please wire correctly, after checking the polarity of the terminals.
• When you install this product to a panel, please use switches or circuit breakers
compliant with IEC60947-1 or IEC60947-3.
• Please install switches or circuit breakers at close distance for user convenience.
• We recommend regular maintenance for the continuous safe use of this product.
• Some components of this product may have a lifespan or deteriorate over time.
• The warranty period of this product, is 1 year, including its accessories, under normal
conditions of use.
• The preparation period of the contact output is required during power supply.
If used as a signal to external interlock circuit, etc. please use a delay relay together.
CAUTION
Suffix code
LCD Timer
LT4
series
Thank you for purchasing Hanyoung Nux products. Please read the instruction
manual carefully before using this product, and use the product correctly. Also,
please keep this manual where you can view it any time.
Safety information
Please read the safety information carefully before the use, and use the product
correctly.The alerts declared in the manual are classified into Danger, Warning and
Caution according to their importance
Time range
28, Gilpa-ro 71beon-gil, Nam-gu, Incheon, Korea
TEL : (82-32)876-4697 FAX : (82-32)876-4696 http://www.hynux.com
HANYOUNGNUX CO.,LTD
HEAD OFFICE/
FACTORY
DANGER
Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury
CAUTION
Indicates a potentially hazardous situation which, if not avoided, may result in minor iinjury or property damage
Parameter
Time range
UP
DOWN
Decimal
Sexagesimal
0.01sec ~ 9.999sec
0.01sec ~ 9.999sec
0.01sec ~ 99.99sec
0.01sec ~ 59.99sec
0.1sec ~ 999.9sec
0.1sec ~ 9m 59.9sec
1sec ~ 9999sec
1sec ~ 59min 59sec
0.1min ~ 999.9min
0.1min ~ 9hour 59.9min
1min ~ 9999min
1min ~ 99hour 59min
0.1hour ~ 999.9hour
0.1hour ~ 999.9hour
1hour ~ 9999hour
1hour ~ 9999hour
INSTRUCTION MANUAL
TD
