Pacific Power Source UPC-1, Operation Manual

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SECTION 9 DIAGNOSTICS
112
9 USER DIAGNOSTICS (cont’d)
PROBLEM
ERROR Message states
"ERROR - PROGRAMMED OUTPUT VOLTAGE
VALUE EXCEEDS OUTPUT VOLTAGE RANGE.
CHANGE VOLTAGE, COUPLING or WAVEFORM."
PROBABLE CAUSE –
RMS content of selected Waveform is not great enough to
produce programmed voltage, requiring more system gain
than is available.
If this type of error occurs when the UPC calculates segment
step data for a transient program, the segment just prior to
the one indicated as erroneous may contain a voltage which
cannot be achieved by the segment indicated (because the
active segment may be ramping from a voltage set in the
previous segment).
SUGGESTED CURE:
Change programmed Voltage, or change Coupling (to XFMR
coupled with a higher voltage range (VR) ), or change the
selected waveform (either by editing the Waveform or
selecting a Waveform with a greater RMS content). See
section 4.6.2.1 to edit a Waveform.
For this problem with transient segments, you may have to
reduce the voltage in the segment prior to the one indicated
as having the error as well as the one indicated as having
the error.
PROBLEM
KEYS BEEP when pressed
but display does not respond.
PROBABLE CAUSE –
UPC is in REMOTE CONTROL (check the REMOTE LED on
the keyboard)
SUGGESTED CURE:
Change to LOCAL CONTROL by pressing the LOCAL key.
If the REMOTE LED remains ON then the REMOTE
INTERFACE controller has put the UPC into LOCAL
LOCKOUT (LLO). Use the REMOTE INTERFACE controller
to send the GOTO LOCAL (GTL) message or clear the REN
(REMOTE ENABLE) signal from the GPIB controller.
Turning the INPUT POWER to OFF will also restore LOCAL
CONTROL.