INSTALLATION and OPERATION SORENSEN DCS SERIES MANUAL
2-2
5. Reinstall the cover and replace screws.
6. Install a 125Vac 20Amp plug and cord ensuring that the neutral (white) wire and line (black) wire
are connected in the correct positions and that the safety ground wire is connected to the ground
screw.
NOTE:
To provide protection for personnel in the case of unit failure and to ensure proper power supply
operation, the safety ground wire of the AC input line cord must ALWAYS be connected to the ground
screw provided.
2.3.2 Input Line Impedance
The maximum input line impedance for operation at full rated output is 1 ohm. Higher source impedances can be
tolerated by raising the input line voltage or by reducing the output voltage and/or current.
2.3.3 Ventilation Requirements
The DCS power supply may be used in rack mounted or benchtop applications. In either case sufficient space must
be allowed for cooling air to reach the ventilation inputs on each side of the unit and for the fan exhaust air to exit
from the rear of the unit.
2.3.4 Output Voltage Biasing
If the output voltage is to be biased relative to safety ground, the power supply outputs may be biased up to a
maximum of 150Vdc with respect to the chassis.
2.3.5 Rack Mounting
The DCS power supply is designed to fit in a standard 19" equipment rack. When installing the unit in a rack be
sure to provide adequate support for the rear of the unit while not obstructing the ventilation inlet on the sides of
the unit. Use adjustable support angles such as Hammond RASA22WH2, or a support bar such as Hammond
RASB19WH2.
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