HANYOUNG NUX LF4N - User Manual

Thank you for purchasing HANYOUNG NUX Co.,Ltd. product.
Please check whether the product you purchased is the exactly same
as you ordered. Before using this product, please read instruction
manual carefully.
Display
Power voltage
Model
Specification
10 % from supply voltage
LCD display
LF4N-A, LF4N-D
LF4N-B, LF4N-C
LF4N-A, LF4N-D
LF4N-A, LF4N-D
LF4N-A, LF4N-D
LF4N-B, LF4N-C
Contact relay : 250 V a.c 3 A (Load Resistance)
Min 100 M
(Based on 500 V d.c)
2000 V a.c 50 / 60 Hz for 1 minute
2000 V Max.
10 - 55 Hz double amplitude 0.75 mm
10 - 55 Hz double amplitude 0.5 mm
300
(Less than 30 G)
100 (Less than 10 G)
Over 1,000 million (Open & Short frequency : 180 / min)
Over 10 million (250 V a.c 3 A load Resistance)
Plug 8PIN, Plug 11PIN
1.5 W (240 V d.c), 4.4 VA (240 V a.c)
2.2 W (240 V d.c), 7.2 VA (240 V a.c)
Over 20 ms (START, INHIBIT, RESET)
Max. 0.01 % 0.05 second (In case of Power-on start)
Max. 0.005 % 0.03 second (In case of Signal-on start)
0.01 % 0.05 second (In case of Power-on start)
Non voltage input
Impedance in a short circuit : Max. 2
Residual voltage in a short circuit : Max. 0.7 V d.c
Impedance in open : Min. 100
-10 ~ 55 (No condensation)
-20 ~ 65
(No condensation)
35 ~ 85 % R.H.
About 110 g (Include Fixing bracket)
24 - 240 V a.c / d.c 50 - 60 Hz
LF4N
Voltage regulation
Power
consumption
Minimum Signal Time
Input
condition
START Input
INHIBIT Input
RESET Input
Repeatability
of operating time
Control output
Insulation Resistance
Dielectric strength
Impulse Voltage
Vibration
Shock
Life
expectancy
Mechanical
durability
Malfunction
durability
Mechanical
durability
Malfunction
durability
Mechanical
Electrical
Terminal type
Operation ambient
temperature
Storage temperature
Operation ambient humidity
Weight
MD0305E0809010
1. If there is a possibility of an accident caused by errors or malfunctions of this product,
install external protection circuit to prevent the accident.
2. 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)
3. To prevent defection or malfunction of this product, supply proper power voltage in
accordance with the rating.
4. To prevent electric shock or malfunction of this product, do not supply the power until the
wiring is completed.
5. Since this product is not designed to explosion-protective structure, do not use it at the
places which have flammable or explosive gas.
6. Do not disassemble, modify, revise or repair this product. This may cause malfunction,
electric shock or fire.
7. Attach or detach this product while the power is off. Otherwise, it may cause malfunction
or electric shock.
8. It you use the product with methods other than specified by the manufacturer, there may
be bodily injuries or property damages.
9. Due to the danger of electric shock, use this product installed onto a panel while an
electric current is applied.
1. The contents of this manual may be changed without prior notice.
2. Please check whether the product you purchased is the exactly same as you ordered.
3.Please check whether the product has no damage or abnormality during
delivery.
4. Do not use this product with time setting “0”
5. Change setting time in condition of “Power OFF”. If change setting time in condition of
“Power On”, reset should be done.
6. Do not use the product at the places which have corrosive(especially noxious gas or
ammonia) or flammable gas.
7. Do not use this product at any place with direct vibration or impact.
8. Do not use this product at any place with liquid, oil, medical substances, dust, salt or iron
contents. (Pollution level 1 or 2)
9. Do not polish this product by substances such as alcohol or benzene.
10. Do not use this product at any place with excessive induction trouble, static electricity or
magnetic noise.
11. Do not use this product at any place with possible thermal accumulation due to direct
sunlight or heat radiation.
12. Install this product at place under 2,000m in altitude.
13. When the product gets wet, the inspection is essential because there is danger of an
electric leakage or fire.
14.
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.
15. If gauge cables are arranged too closely, the effect on noise may occur.
16. Do not connect anything to the unused terminals.
17. After checking polarity of terminal, connect wires to the right position.
18. When this product is connected to a panel, use a circuit breaker or switch approved by
IEC947-1 or IEC947-3.
19. Install the circuit breaker or switch at near place for convenient use.
20. Write down on a label that the operation of circuit breaker or switch disconnects the
power since the devise is installed.
21. For the continuous and safe use of this product, the periodic maintenance is
recommended.
22.
Some parts of this product have limited life span, and others are changed by their usage.
23. The warranty period of this product including parts is one year if this product is properly used.
24. 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.
Safety Information
Do not touch or contact the input/output terminals because they may cause electric
shock.
DANGER
WARNING
CAUTION
Please read safety information carefully before use and then use this product
properly. Safety information described in this manual contains important contents
related with safety. So please follow the instructions accordingly. Safety
information is composed of DANGER, WARNING and CAUTION.
Max. 0.1 second
Resetting time
HEAD / OFFICE
1381-3, Juan-Dong, Nam-Gu Incheon, Korea
TEL: (82-32)876-4697 FAX:(82-32)876-4696
Model
Model
Time limit 1c
Time limit 2c
Time limit 1c
Instantaneous 1c
Time limit 1c
10 kinds
Fixing A mode
No Input
10 kinds
RESET,START,INHIBIT
RESET,START,INHIBIT
24 - 240 V a.c / d.c 50 - 60 Hz
8 Pin socket
10 kinds of timing ranges
11 Pin socket
Power voltage
Socket
Output
Timing range
Output operations
Input signal
Dimensions and Panel Cutout
(Unit : mm)

Summary

Safety Information

DANGER

Warning regarding touching input/output terminals to prevent electric shock.

WARNING

General warnings for product usage, installation, and maintenance to prevent hazards.

CAUTION

Precautions for proper use, handling, and environmental conditions to prevent damage or malfunction.

Specifications

Dimensions and Panel Cutout

Technical drawings showing product dimensions and panel cut-out specifications for installation.

Identification of Each Part

Front panel

Description of the front panel display elements and indicators.

Selection of Operation Mode

Guide on selecting the operation mode using dip switches and understanding mode display.

Time Setup

Instructions for setting the time value using the front panel dip switches.

Selection of Time Unit

Guide on selecting the time unit (seconds, minutes, hours) using dip switches.

Connections

LF4 N Model Wiring Diagrams

Wiring diagrams for different LF4N models, showing terminal connections.

Selection of Up;Down Mode

Up Mode Operation

Explanation of the default Up mode for output operation.

Down Mode Operation

Explanation of the Down mode for output operation.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The Hanyoung Nux LCD Timer LF4N is a versatile and compact digital timer designed for various industrial and control applications. This instruction manual provides comprehensive details on its function, technical specifications, usage, and safety guidelines.

Function Description

The LF4N timer offers a wide range of operation modes and timing functionalities, making it suitable for diverse control scenarios. It features a clear LCD display for elapsed time, time process status, inhibit status, reset status, and output-on status, along with a bar graph for visual representation of elapsed time.

The device supports 10 distinct operation modes, selectable via a dip switch on the front panel:

• SIGNAL ON DELAY (A Mode): The output turns ON after a set delay when the START input is received.
• FLICKER ON START (B Mode): The output cycles ON and OFF repeatedly after the START input, with the ON time and OFF time determined by the set time.
• SIGNAL ON/OFF DELAY (C Mode): Combines ON delay and OFF delay functionalities.
• SIGNAL OFF DELAY (D Mode): The output turns OFF after a set delay when the START input is removed.
• INTERVAL (E Mode): The output turns ON for a set duration after the START input.
• ONE-SHOT & FLICKER (F Mode): Provides a one-shot output for a set duration, followed by a flicker operation.
• INTEGRATION (G Mode): Accumulates time from multiple START inputs.
• INTERVAL DELAY (H Mode): The output turns ON after a set delay, and then turns OFF after another set duration.
• FLICKER ONE-SHOT (I Mode): Provides a flicker operation for a set duration after the START input.
• POWER ON START (J Mode): The output turns ON for a set duration immediately upon power application.

The LF4N also supports two output operation modes: Up Mode (initial mode) and Down Mode, selectable via a jumper switch on the PCB. In Up Mode, the output operates as described for each timing function. The specific behavior in Down Mode is not detailed but implies an inverse or complementary operation.

Important Technical Specifications

The LF4N timer is designed for broad compatibility and robust performance:

• Power Voltage: 24-240 V a.c/d.c 50-60 Hz, offering flexibility in power supply.
• Display: LCD display for clear visibility of timing information.
• Voltage Regulation: ±10% from supply voltage.
• Power Consumption:
  • LF4N-A, LF4N-D: 1.5 W (240 V d.c), 4.4 VA (240 V a.c)
  • LF4N-B, LF4N-C: 2.2 W (240 V d.c), 7.2 VA (240 V a.c)
• Resetting Time: Max. 0.1 second.
• Minimum Signal Time (START, INHIBIT, RESET): Over 20 ms.
• Input Condition (Non-voltage input):
  • Impedance in a short circuit: Max. 2 kΩ
  • Residual voltage in a short circuit: Max. 0.7 V d.c
  • Impedance in open: Min. 100 kΩ
• Repeatability of Operating Time:
  • LF4N-A, LF4N-D: Max. ±0.01% ±0.05 second (Power-on start), Max. ±0.005% ±0.03 second (Signal-on start)
  • LF4N-B, LF4N-C: ±0.01% ±0.05 second (Power-on start)
• Control Output: Contact relay: 250 V a.c 3 A (Load Resistance).
• Insulation Resistance: Min 100 MΩ (Based on 500 V d.c).
• Dielectric Strength: 2000 V a.c 50/60 Hz for 1 minute.
• Impulse Voltage: ±2000 V Max.
• Vibration Durability:
  • Mechanical: 10-55 Hz double amplitude 0.75 mm
  • Malfunction: 10-55 Hz double amplitude 0.5 mm
• Shock Durability:
  • Mechanical: 300 m/s² (Less than 30 G)
  • Malfunction: 100 m/s² (Less than 10 G)
• Life Expectancy:
  • Mechanical: Over 1,000 million (Open & Short frequency: 180 / min)
  • Electrical: Over 10 million (250 V a.c 3 A load Resistance)
• Terminal Type: Plug 8PIN, Plug 11PIN (depending on model).
• Operation Ambient Temperature: -10~55 °C (No condensation).
• Storage Temperature: -20~65 °C (No condensation).
• Operation Ambient Humidity: 35~85% R.H.
• Weight: About 110 g (Including Fixing bracket).
• Dimensions: 48 mm (W) x 48 mm (H) x 75.5 mm (D) (including terminals). Panel cutout: 45 mm x 45 mm.

Usage Features

The LF4N timer is designed for ease of use and configuration:

• Time Setup: Users can set the desired time from 001 to 999 using 3 dip switches on the front panel.
• Time Unit Selection: The device supports 10 different time units, selectable via a dip switch on the right side of the front panel. These units include:
  • 0.01 s (0.01 s ~ 9.99 s)
  • 0.1 s (0.1 s ~ 99.9 s)
  • s (1 s ~ 999 s)
  • 0.1 m (0.1 m ~ 99.9 m)
  • m (1 m ~ 999 m)
  • 0.1 h (0.1 h ~ 99.9 h)
  • h (1 h ~ 999 h)
  • 10 h (10 h ~ 9990 h)
  • S M (0 m 01 s ~ 9 m 59 s)
  • H M (0 h 01 m ~ 9 h 59 m)
• Free Voltage Operation: The LF4N is a free voltage LCD timer (24 - 240 V a.c / d.c), simplifying power connections. However, attention to polarity is crucial when using DC voltage.
• Input Signals: The timer accepts RESET, START, and INHIBIT input signals, which are non-voltage inputs.
• Safety Information: The manual emphasizes critical safety precautions, including:
  • Installing external protection circuits to prevent accidents from errors or malfunctions.
  • Installing a separate electric switch or fuse (250 V 0.5 A).
  • Supplying proper power voltage.
  • Completing wiring before supplying power.
  • Not using in flammable or explosive gas environments.
  • Avoiding disassembly, modification, or repair.
  • Attaching/detaching while power is OFF.
  • Using only as specified by the manufacturer.
  • Installing onto a panel when electric current is applied.
• Cautionary Notes:
  • Do not use with time setting "0".
  • Change setting time in "Power OFF" condition; if changed in "Power On" condition, a reset is required.
  • Avoid corrosive, noxious gas, ammonia, flammable gas, direct vibration, impact, liquids, oil, medical substances, dust, salt, iron contents (Pollution level 1 or 2).
  • Do not polish with alcohol or benzene.
  • Avoid excessive induction trouble, static electricity, or magnetic noise.
  • Avoid thermal accumulation from direct sunlight or heat radiation.
  • Install below 2,000m altitude.
  • Inspect if wet to prevent electric leakage or fire.
  • Use an insulating transformer and noise filter if power supply noise is excessive.
  • Ensure proper grounding and short wiring for noise filters.
  • Avoid closely arranging gauge cables to prevent noise interference.
  • Do not connect to unused terminals.
  • Connect wires according to terminal polarity.
  • Use an IEC947-1 or IEC947-3 approved circuit breaker or switch when connected to a panel.
  • Install the circuit breaker or switch nearby for convenient use.
  • Label the circuit breaker/switch for power disconnection.

Maintenance Features

• Periodic Maintenance: Recommended for continuous and safe use.
• Limited Lifespan: Some parts have a limited lifespan, and others change by usage.
• Warranty: One-year warranty if the product is properly used.
• Contact Output Preparation: A preparation period for contact output is required when power is ON. For external interlock circuits, a delay relay should be used.

The LF4N series includes different models (LF4N-A, LF4N-B, LF4N-C, LF4N-D) with variations in output configuration (Time limit 1c, Instantaneous 1c, Time limit 2c), number of timing ranges, and input signals. For instance, LF4N-A and LF4N-D offer 10 kinds of output operations, while LF4N-B and LF4N-C offer 10 kinds of timing ranges. LF4N-A and LF4N-D support RESET, START, and INHIBIT inputs, whereas LF4N-B and LF4N-C do not have input signals and operate in a fixed A mode. LF4N-A and LF4N-B use an 8-pin socket, while LF4N-C and LF4N-D use an 11-pin socket.

HANYOUNG NUX LF4N Specifications