CHAPTER 4
OPERATING INSTRUCTIONS
Entire Contents Copyright 2004 by Adaptive Power Systems, Inc. (APSI) • All Rights Reserved • No reproduction without written authorization from APSI.
APS-3000P Series 4 - 11 OM-001-03000-00P-03.9
Setting System Parameters (Programming)
PLC Remote. Press the CURRENT ︿ or ﹀ buttons to toggle the PLC ON / OFF in the
current display.
OFF The system is controlled directly from the front panel.
ON The system is controlled by an external controller that is connected to the 9-PIN
D-sub PLC connector on the rear panel.
Pressing any button on the front panel will cause the display to show PLC-ON, the buzzer to
beep twice, and the display to return to RESET (Standby) mode. The LOCK / LOCAL,
SYSTEM, and METER buttons are the only ones that will function when the PLC feature is ON.
NOTE: DO NOT use the PLC port for RS-232 serial or GPIB parallel data.
GPIB Option. This parameter only displays when the GPIB option is installed. Use the
CURRENT ︿ or ﹀ buttons to set the GPIB address (factory determined as 08). For details,
please refer to the GPIB External Interface section in Chapter 5.
Auto Voltage Adjust. Press the CURRENT ︿ or ﹀ buttons to toggle ON / OFF. When
ON, the automatic gain control circuit is activated and voltage regulation improves. The voltage
will be automatically adjusted to maintain ± 0.1V of the set value.
Power Up. Press the CURRENT ︿ or ﹀ buttons to step the current display between
OFF/ON/LASt.
OFF The system will start in standby mode.
ON The system will power up using the default output settings.
LASt The system will power up using the output settings that were active when it was
last shut down.
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