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 - 26 OM-001-03000-00P-03.9
AC Power Momentarily Interrupted. If the input power is interrupted and then resumed,
the FREQUENCY display will show AcLP (AC Line Power). This signifies a power
abnormality. An alarm will sound; the FAIL LED will flash; the PROTECT LED will light;
and the VOLTAGE and CURRENT displays will show their corresponding values.
Blown Fuse. If a fuse opens, the FREQUENCY display will show FUSE. This means the
internal bus was overloaded. An alarm will sound; the FAIL LED will flash; the PROTECT
LED will light; and the VOLTAGE and CURRENT displays will show their corresponding
values.
Insulated Gate Bipolar Transistor Overloaded. If an insulated gate bipolar transistor
(IGBT) is overloaded, the FREQUENCY display will show Igbt. The Insulated gate bipolar
transistors are the main power transistors in the power conversion circuit. An alarm will sound;
the FAIL LED will flash; the PROTECT LED will light; and the VOLTAGE and CURRENT
displays will show their corresponding values.
System Critical Temperature Exceeded. If any of the system’s critical temperatures are
exceeded, the FREQUENCY display will show OtP (Over temperature Protect). This signifies
overheating. An alarm will sound; the FAIL LED will flash; the PROTECT LED will light;
and the VOLTAGE and CURRENT displays will show their corresponding values.
Output Voltage Limit Exceeded. If the output voltage exceeds the voltage setting by more
than 5V on the 0-150V range or 10V on the 0-300V range, the FREQUENCY display will
show OVP (Over Voltage Protect); an alarm will sound; the FAIL LED will flash; the
PROTECT LED will light; and the VOLTAGE and CURRENT displays will show the
corresponding values at the time of over-voltage.
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