INSTRUCTIONAL MANUAL
2750L-P/4500L-P/6000L-P
August, 2001
Rev. K
-24-
SECTION 3
OPERATION
3.1 GENERAL
The AC Power System may be programmed from the front panel or through the IEEE-488 external interface. The rear
panel of the AC Power System holds the power input and output terminals external sense connector, system interface
connector, IEEE-488 interface connector and the chassis ground stud.
3.2 FRONT
PANEL
CONTROLS
All front panel controls are shown in Figure 3-1. A voltmeter selector switch is located at the right side of the front panel
voltmeter. The three position switch changes the signal applied to the voltmeter from the three output phases.
A three-pole circuit breaker is on the left side of the front panel. The circuit breaker is used to switch power to the unit.
When the circuit breaker is switched ON, the amber indicator lamp above the circuit breaker illuminates.
The front panel has a subpanel with a keypad, remote lamp, LCD display and a viewing angle adjustment. The 20-key
keypad allows the power source to be manually programmed at the front panel. The knob labeled VIEW ANGLE may
be turned to adjust the contrast of the front panel display. The remote lamp illuminates when the AC Power System
has been addressed through the IEEE-488 interface (GPIB).
3.3 FRONT
PANEL
INDICATORS
A lamp is located just above the input circuit breaker. It illuminates when power is applied and the circuit breaker is on.
An analog voltmeter, that indicates from 0 to 300 volts, shows the actual voltage of the phase A, B and C outputs. The
phase is determined by a three position toggle switch at the right side of the meter.
An OVERTEMP lamp illuminates when the temperature of the power amplifier heatsinks has surpassed a maximum set
level. When the fault is detected, the outputs are disabled and must be reprogrammed after the overtemperature
condition has been eliminated.
An OVERLOAD lamp illuminates when the output current exceeds the programmed current limit value. The outputs will
default to 0.0 volts and the output relays will open shortly after the condition occurs.
Summary of Contents for 12000L-1P
Page 119: ...INSTRUCTIONAL MANUAL 2750L P 4500L P 6000L P August 2001 Rev K 115 Figure 6 1 MODULE LOCATION...
Page 138: ...INSTRUCTIONAL MANUAL 2750L P 4500L P 6000L P August 2001 Rev K 134 Figure 14 EMERGENCY VOLTAGE...
Page 148: ...INSTRUCTIONAL MANUAL 2750L P 4500L P 6000L P August 2001 Rev K 144 FIGURE 2...
