Chapter 3 General Specifications

3-1
Chapter 3. General Specifications

3.1 General Specifications

The following table shows the general specifications of the MASTER-K120S series.
No. Item Specifications References
1 Operating ambient
Temperature 0 ~ 55 °C
2 Storage ambient
Temperature 25 ~ +70 °C
3 Operating ambient
Humidity 5 ~ 95%RH, non-condensing
4 Storage ambient
Humidity 5 ~ 95%RH, non-condensing
Occasional vibration -
Frequency Acceleration Amplitude Sweep count
10 f < 57Hz 0.075mm
57 f 150Hz 9.8m/s2 {1G}
Continuous vibration
Frequency Acceleration Amplitude
10 f < 57Hz 0.035mm
5 Vibrations
57 f 150Hz 4.9m/s2 {0.5G}
10 times for each
X, Y, Z axis IEC 61131-2
6 Shocks
Maximum shock acceleration: 147 m/s2 {15G}
Duration time: 11ms
Pulse wave: half sine pulse ( 3 shocks per axis, on X, Y, Z axis ) IEC 61131-2
Square wave
Impulse noise ± 1,500 V LGIS’ Internal
Standard
Electronic
discharge Voltage: 4 kV ( Discharge by contact ) IEC 61131-2,
IEC 1000-4-2
Radiated
electromagnetic
field noise 27 ~ 500 MHz, 10 V/m IEC 61131-2,
IEC 1000-4-3
Item Power supply Digital I/O
(24V and up)
Digital I/O
(less than24V)
Analog I/O
Interface
7 Noise Immunity
Fast transient &
burst noise
Voltage 2kV 1kV 0.25kV
IEC 61131-2
IEC 1000-4-4
8 Atmosphere Free of corrosive gases and excessive dust
9 Altitude Up to 2,000m
10 Pollution degree 2
11 Cooling method Air-cooling

1) IEC (International Electrotechnical Commission): An international civilian institute who establishes international standards in area of electric
and electronics.
2) Pollution degree: An indicator, which indicates pollution degree, which determine insulation performance of equipment.
* Pollution degree 2 : Normally, only non-conductive pollution occurs. Occasionally, however, a temporary conductivity caused by
condensation shall be ex
p
ected.
REMARK