Power Supplies; 539 Watt Power Supply (Mpws131) - Intergraph InterServe 8000 System Reference Manual

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Power Supplies

Two power supply options are available, as follows:
u
Single 539 Watt power supply (MPWS131)
u
Dual 550 Watt power supplies (MPWS139)

539 Watt Power Supply (MPWS131)

MPWS131 is a 539 Watt autoranging supply, that switches between 90-132 VAC or 180-264 VAC,
depending on the location. The input frequency is 47-63 Hz, single phase. At full load, the power
supply has a minimum efficiency of 65 percent.
The power supply is enclosed in a case that includes two fans to provide additional airflow through the
system. Refer to "Cooling Fans and Temperature Sensors" later in this chapter for more information.
DC Output Specifications
The following table details the DC output specifications for the power supply.
Nominal Output Voltages
Continuous Load (Maximum.)
Continuous Load (Minimum.)
Noise and Ripple (PARD) (DC to
30 MHz)
Initial Setting Tolerance
Regulation Line/Load
Overshoot (Turn on/off)
The footnotes in the previous table are defined as follows.
1. The power supply meets or exceeds these specifications. For the noted specifications, the
maximum values describe the smallest acceptable maximum load, and the minimum values
describe the largest acceptable minimum load.
2. These outputs are measured at the user end of an unloaded peripheral cable.
3. +3.3 V and +5.1 V will never draw over 400 Watts combined.
4. Any combination of +3.3 V, +5.1 V, and +12 V do not exceed their maximum or 539 Watts of
total power.
5. The sum of Initial Setting Tolerance and Line/Load Regulation do not exceed 3% for the +3.3 V
and +5.1 V outputs, 5% for the +12 V output, and 10% for the negative output voltages.
1
1, 5 4
+3.3
1 3, 4
48
1
0
50
2, 5
3%
2, 5
3%
5%
Outputs
2 3 4
4 4
+5.1 +12.0
12.0
3, 4 4
76 12 0.5
6 0 0
50 100 250
3% 5% 10%
3% 5% 10%
5% 10% 10%
Unit
5
VDC
5.0
0.5 ADC
0 ADC
100 mVp-p
Max
Max
10%
Max
10%
10% Max