Install. Instr User guide
3 FLEX I/O DC Power Supply Modules
Publication 1794-IN069D-EN-P - June 2004
Example of Using a 1794-PS13 Power Supply to
Power 4 Adapter Modules
Diagnostic Indicator
The power supplies have 1 indicator.
Specifications
24V dc
ac
24V dc
120V ac
All dc powered I/O modules
All ac powered I/O modules
24V dc
24V dc from separate source
24V dc from separate source
Combination ac and dc powered I/O modules
Power
Supply
Adapter
Adapter
Adapter
ac
24V dc
All ac powered I/O modules
Adapter
Power
Indicator
The power indicator is on (green) when voltage
at the output is between 20.4V dc and 28V dc.
Power
24V DC
POWER SUPPLY
1794-PS13
24V
COM
Power
Indicator
Power
24V DC
POWER SUPPLY
1734-PS3
24V
COM
The power indicator is on (green) when voltage
at the output is between 20.4V dc and 28V dc.
1794-PS13
1794-PS3
Indicator Description
ON (green) Output voltage is greater than 20.4V dc, but less than 28V dc
OFF No power applied to power supply
Output voltage exceeded 35V dc, and overvoltage protection
shut the unit down
Output current is above 1.4A (1794-PS13) or above 3.2A
(1794-PS3)
Specifications - Cat. No. 1794-PS13 and 1794-PS3
1794-PS13 1794-PS3
Nominal Supply Voltage 120V ac, 47-63Hz; 0.6A max.
230V ac, 47-63Hz; 0.42A max.
120V ac, 47-63Hz; 1.7A max.
230V ac, 47-63Hz; 1.1A max.
Voltage Range 85-265V ac
Input Current 0.7 maximum 1.9A maximum
Inrush Current 40A typical, 1 ac cycle @ V
in
265V ac, 55°C
Interruption Output will stay within specification when input drops out for 1/2 cycle @
47Hz, 85V ac with maximum load
Output Specifications
Nominal Output +24V dc
Voltage Range 20.4-27.6V dc (includes noise and 5% ac ripple)
Output Current 1.3A maximum 3A maximum (horizontal mount),
2.8A all other mounting (See
derating curve)
Output Power 31.2W 72W
Output Ripple 1200mV peak-to-peak maximum
Minimum Load 0mA 50mA
Output Surge Sufficient to drive 4 adapters Sufficient to drive 10 adapters
Overvoltage Protection Output internally limited to 35V dc. Cycle power to reenergize.
Leakage Current 0.5mA rms maximum @ rated input and output
Isolation Voltage Tested at 2500V dc for 1s
Overcurrent Protection 1.4A minimum 3.2A minimum
Thermal Dissipation 23.9 BTU/hr 41.0 BTU/hr
Power Dissipation 7W maximum 12W maximum
Dimensions 3.4H x 2.7W x 2.7D inches
87H x 69W x 69D mm
3.4H x 3.7W x 2.7D inches
87H x 94W x 69D mm
General Specifications
Environmental Conditions
Operating Temperature IEC 60068-2-1 (Test Ad, Operating Cold),
IEC 60068-2-2 (Test Bd, Operating Dry Heat),
IEC 60068-2-14 (Test Nb, Operating Thermal Shock):
0 to 55°C (32 to 131°F)
Storage Temperature IEC 60068-2-1 (Test Ab, Un-packaged Non-operating Cold),
IEC 60068-2-2 (Test Bb, Un-packaged Non-operating Dry Heat),
IEC 60068-2-14 (Test Na, Un-packaged Non-operating Thermal Shock):
–40 to 85°C (–40 to 185°F)
Relative Humidity IEC 60068-2-30 (Test Db, Un-packaged Non-operating
Damp Heat):
5 to 95% non-condensing
Vibration IEC60068-2-6 (Test Fc, Operating):
5g @ 10-500Hz
Shock IEC60068-2-27 (Test Ea, Unpackaged shock)
Operating 30g
Non-operating 50g
Emissions CISPR 11:
Group 1, Class A (with appropriate enclosure)
ESD Immunity IEC 61000-4-2:
4kV contact discharges
8kV air discharges
Radiated RF Immunity IEC 61000-4-3:
10V/m with 1kHz sine-wave 80%AM from 30MHz to 1000MHz
EFT/B Immunity IEC 61000-4-4:
±2kV at 5kHz on power ports
Surge Transient Immunity IEC 61000-4-5:
±1kV line-line(DM) and ±2kV line-earth(CM) on ac power ports
Conducted RF Immunity IEC 61000-4-6:
10Vrms with 1kHz sine-wave 80%AM from 150kHz to 80MHz
Enclosure Type Rating None (open-style)