American Magnetics 03300PS-430-601 High Stability Integrated Power Supply System - Manual (Page 32)

14 Rev. 5
Installation
Power Requirements
2.3 Power Requirements
Warning
The power requirement for each system component is marked on the
rear panel of the unit adjacent to the power entry connectors. Be sure
the power supply system is configured for the proper power source
prior to plugging in the line cords. Do not fail to connect the input
ground terminal securely to an external earth ground.
Caution
Operating the system without power applied to the current
transformer (CT) can will result in loss of control, and will probably
damage the CT.
Ensure the front panel power switches are in the OFF ( O ) position. Verify
that the power supply components are configured for the proper operating
voltage by referring to the equipment rear panels. If the operating voltage
is correct, plug the line cords into power entry connectors, and into the
appropriate power receptacles.
2.3.1 Changing the Model 430 Programmer Operating Voltage
Warning
The following procedure is to be performed only when the Model 430
Programmer is completely de-energized by removing the power-cord
from the power receptacle. Failure to do so could result in personnel
coming in contact with high voltages capable of producing life-
threatening electrical shock.
Note
The voltage selector switch is labeled “115” for nominal line voltages
from 100 to 115 VAC. The switch is labeled “230” for nominal line
voltages of 200 to 230 VAC.
If the Model 430 Programmer operating voltage must be changed, ensure
the instrument is de-energized by disconnecting the power cord from the
power source. Remove the Model 430 Programmer cover by removing the
four screws on both sides of the cover and the four screws from the corners
of the cover on the back panel; slide the voltage selector switch on the main
printed circuit board to the proper voltage. Replace the Model 430
Programmer cover.