▍Specification
|
Model
|
LT4
|
LT4S
|
|
Power voltage
|
24 - 240 V a.c. 50/60 Hz or 24 - 240 V d.c. (dual usage)
|
|
Voltage fluctuation rate
|
± 10 % of power voltage
|
|
Power consumption
|
Max. 4 VA (24 - 240 V a.c. 50/60 Hz)
Max. 1.6 W (24 - 240 V d.c.)
|
Max. 4.5 VA (24 - 240 V a.c. 50/60 Hz)
Max. 2 W (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 : 14 mm, SV display : 8.5 mm
|
|
Return time
|
Max. 100 ms
|
|
External connection
|
Socket 8 pin
|
|
Operating time range
|
0.01 sec ~ 9999 hour
|
|
External
input
|
Input signal
|
Power on start
|
START, INHIBIT, RESET
|
|
Input method
|
-
|
Non-voltage input, impedance at short circuit: max. 1 kΩ
Residual voltage at short circuit:max. 0.5V
Impedance at open: min. 100 kΩ.
|
|
Minimum input time
|
-
|
START, INHIBIT, RESET
min. input signal width 1ms / 20ms selection
|
|
Operating time error
|
Power START : max. ± 0.01 % ±0.05 sec., Signal START : max. ± 0.005 % ±0.03 sec.
|
|
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
composition
|
Time limit 2c, Instantaneous 1c + Time limit 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: min. 10,000,000 times, Electrical life: min. 100,000 times (250 V a.c. 5A resistive load)
|
|
Insulation resistance
|
100 MΩ min (500 V d.c. Megger standard, conductive part terminal and exposed unfilled metal)
|
|
Dielectric strength
|
2000 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 m/s² (30G) X, Y, Z each direction, 3 times
|
|
Ambient temperature
|
-10 ~ 55 ℃ (without condensation)
|
|
Storage temperature
|
-25 ~ 65 ℃ (without condensation)
|
|
Ambient humidity
|
35 ~ 85 % RH
|
|
Certification
|
|
|
Degree of protection
|
IP66 (front panel)
|
|
