SECTION 3 INSTALLATION
53
3.3.5 INPUT VOLTAGE CONFIGURATION, MODEL 3120-ASX
The 3120-ASX Power Source has been designed to accept most standard three phase input
voltage forms. This is accomplished through the use of a tapped input power transformer.
Configuring the proper input form is simply a matter of setting jumpers in the appropriate positions.
The system is designed for use with input frequencies of 47 to 63 Hz. (Optionally, systems may
be used with input frequencies of up to 440 Hz. Contact the factory for details.)
Figure 3.3.5 shows the location of the various jumpers which need attention relative to input voltage
form. The position of these jumpers is listed on the accompanying table.
The first step in configuring the input power form is to remove the top cover. Next, connect the
jumpers as stated in the table for the desired input voltage. Refer to the table in Figure 3.3.5 for the
proper setting.
After configuring the input voltage form, check connections and insure that they are tight and in the
correct position. Replace the top cover.
CAUTION
CONNECTION OF THIS UNIT TO IMPROPER INPUT VOLTAGES WILL CAUSE
CATASTROPHIC DAMAGE TO THE POWER SOURCE.
READ THE INPUT VOLTAGE LABEL AND CONNECT TO THAT INPUT VOLTAGE ONLY. IF
THERE ARE ANY QUESTIONS, CONTACT THE FACTORY.
The 3120-ASX is then connected to an appropriate distribution panel via the Input Power terminal
block. Refer to Paragraph 2.1.1 for minimum input service requirements of the various input
voltage forms.
WARNING
DISCONNECT THIS UNIT FROM THE INPUT SERVICE BEFORE REMOVING TOP COVER.
HIGH VOLTAGE HAZARD PRESENT INSIDE UNIT WHEN TOP COVER IS REMOVED AND STILL
CONNECTED TO INPUT SERVICE.
