Agilent Technologies 33220A User Manual page 296

-221 Settings conflict;
FM deviation cannot exceed carrier
The carrier frequency must always be greater than or equal to the
frequency deviation. If you set the carrier to a value less than the
deviation frequency (with FM enabled), the function generator will
automatically adjust the deviation to the maximum value allowed with the
present carrier frequency.
-221 Settings conflict;
FM deviation exceeds max frequency
The sum of the carrier frequency and deviation must be less than or
equal to the maximum frequency for the selected function plus 100 kHz
(20.1 MHz for sine and square, 300 kHz for ramp, and 5.1 MHz for
arbitrary waveforms). If you set the carrier to a value that is not valid,
the function generator will automatically adjust the deviation to the
maximum value allowed with the present carrier frequency.
-221 Settings conflict;
PWM deviation decreased due to pulse parameters
The PWM deviation is limited by the pulse width or duty cycle, edge
time, and period. The PWM deviation (width or duty cycle deviation) is
adjusted to fit within these limits. See "Pulse Width Modulation (PWM
Commands" in chapter 4 for further information.
-221 Settings conflict;
frequency forced duty cycle change
If the square wave function is selected and you change to a frequency
that cannot produce the current duty cycle, the duty cycle is
automatically adjusted to the maximum value for the new frequency.
For example, if you currently have the duty cycle set to 70% and then
change the frequency to 15 MHz, the function generator will automatically
adjust the duty cycle to 60% (upper limit for this frequency).
Duty Cycle: 20% to 80% (frequency < 10 MHz)
-221 Settings conflict;
marker forced into sweep span
The marker must be within the sweep span, between the start and stop
frequency. The marker frequency is forced into that range.
40% to 60% (frequency > 10 MHz)
Chapter 5 Error Messages
Execution Errors
4
5
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