User Manual
S8FS-G
11
Ratings, Characteristics, and Functions
Standard Compliance
• The input voltage range for compliance with EC Directives and
other safety standards (UL, EN, etc.) is 90 to 264 VAC.
• EN/IEC 61558-2-16
To comply with EN/IEC 60204-1 (Machine Safety), a transformer is
required in the control circuit. If, however, a Power Supply that has
a built-in transformer that complies with EN/IEC 6155-8-2-16 is
used, an external transformer is not required.
Power supplies with a DC input are beyond the range of
applicability of the EC Directives and other safety standards (e.g.,
UL and EN).
Inrush Current, Startup Time, Output Hold Time
Note: The total inrush current of all of the Power Supplies will flow for
parallel operation or backup operation.
Sufficiently check the fusing characteristics of fuses and the
operating characteristics of breakers and select fuses and
breakers so that external fuses will not burn out or breakers will
not operate due to inrush current.
Ripple Noise Voltage
The specified standard for the ripple voltage noise was measured with
a measurement circuit that is based on JEITA standard RC-9131A.
Efficiency The value is when both rated output voltage and rated output current are satisfied.
Input
Voltage range Do not use an inverter output for the Power Supply. Inverters with an output frequency of
50/60 Hz are available, but the rise in the internal temperature of the Power Supply may
result in ignition or burning.
Frequency
Current The value is when both rated output voltage and rated output current are satisfied.
Leakage current
The values are determined according to the Act on Power Supply Safety of Electrical
Appliances and Materials.
Inrush current
(for a cold start at 25°C)
For a cold start at 25°C. Refer to the following figure.
Output
Voltage adjustment range
If the output voltage adjuster (V. ADJ) is turned, the voltage will increase by more than +15%
of the voltage adjustment range. When adjusting the output voltage, confirm the actual
output voltage from the Power Supply and be sure that the load is not damaged.
Ripple & Noise voltage
The value is when both rated output voltage and rated output current are satisfied.
A characteristic when the ambient operating temperature is 25°C.
Input variation influence
This is the maximum variation in the output voltage when the input voltage is gradually
changed within the allowable input voltage range at the rated output voltage and rated
output current.
Load variation influence
This is the value when the output current is changed from 0 A to the rated output current
while the input voltage is within the allowable input voltage.
Startup time
The value is when both rated output voltage and rated output current are satisfied.
For a cold start at 25°C. Refer to the following figure.
Hold time
The value is when both rated output voltage and rated output current are satisfied.
At 25°C. Refer to the following figure.
Additional
functions
Overvoltage protection
Refer to Overvoltage Protection on page 17 for the time when input voltage shuts off and
input turns on again.
Reliability Life expectancy
Refer to Recommended Replacement Periods and Periodic Replacement for Preventive
Maintenance on page 32 for details.
Standards EMI
Conducted Emissions
The 150-W and higher models conform to Class B when an aluminum plate is set under the
Power Supply.
Radiated Emissions
90%
96.5%
Startup time
AC input
voltage
AC input
current
Output
voltage
Inrush current on input application
Input OFF
Input ON
Hold time
150mm
S8FS-G
Oscilloscope
Frequency band:
100 MHz
C1 C2
Load
C1:100µF
C2:0.47µF
Coaxial cable
+V
−V