Stanford Research Systems DS345, Manual

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Troubleshooting
4-2
Depth Error Attempt to set AM depth outside of -100 % to +100% range.
Edit Error Attempt to set front-panel edit point value past end of arb waveform. Can
only edit the existing waveform 1 new one.
Freq Error Attempt to set output frequency outside of range allowed for current function,
set sweep markers <= 0 Hz or > 30.2 MHz, or attempting to set frequency for
NOISE function.
Funct Error Attempting to modulate NOISE; attempting to download ARB modulation pat-
tern if not AM, FM, or PM; or attempting sweeps, FM, or PM of ARB wave-
forms.
Load Error Timeout during loading of ARB waveform or modulation. The can be no
more than 10s between successive data points. Check that the correct num-
ber of bytes are sent.
Load CS Error The checksum calculated by the DS345 is different than that received from
the computer on downloading of ARB waveform or modulation. Check that
the computer is sending the correct # points and calculating sum correctly.
Load Rng Error Arb AM value outside of ±32767 range (-32768 is illegal). Arb FM frequency
> 30.2 MHz. Arb PM phase shift > ±180 degrees. Arb waveform y value out-
side of -2048 to + 2047 range. Arb waveform vertex x value < previous ver-
tex x value. Arb waveform vertex x value > 16299.
No Interface Cannot access GPIB and RS232 menus if option board is not installed.
Offset Error DC output offset outside of ±5V range.
Phase Error Phase or PM deviation set outside of ±7199.999° range.
Range Error Parameter in command is out of allowed range for that command.
Rate Error Modulation rate out of range (0.001 Hz to 1kHz for sweeps, 0.001 Hz to 10
kHz for other). Trigger rate out of range (0.001Hz to 10kHz).
Recall Error Parameter memory corrupt on power up, stored setting corrupt. Not a worry
unless this error occurs frequently. Check the battery if so.
Span F Error Sweep or FM span set so that frequency is <= 0 Hz or > max allowed for the
current function. Also if SPAN=MRK function has same effect.
Strt F Error The sweep start frequency is out of range ( 0 < Freq < max for function).
Stop F Error The sweep stop frequency is out of range ( 0 < Freq < max for function).
Syn Error The command syntax is invalid. See PROGRAMMING section for correct
command syntax.
UART Error The DS345 has detected an error on its computer interface option board.