Technical data

Error Messages 16
U2761A Programmer’s Reference 145
–221 Settings conflict; frequency reduced for user function
When you change to the arbitrary function (output frequency limit is 200 kHz) from a function that allows
a higher frequency, the U2761A will automatically adjust the frequency to 200 kHz
–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
–221 Settings conflict; frequency changed due to FM deviation
If the carrier frequency is lower than the minimum FM deviation plus 1 μHz, the carrier frequency will be
adjusted to the minimum value allowed
–221 Settings conflict; amplitude changed due to offset
If the existing output amplitude is not valid, the U2761A will automatically adjust it to the maximum value
allowed with the offset voltage specified
–221 Settings conflict; amplitude changed due to function
The amplitude limits are determined by the currently selected output units when the units are Vrms or
dBm due to the differences in crest factor for the various output functions
–221 Settings conflict; amplitude units change to Vpp due to high-Z load
The output units cannot be set to dBm if the output termination is currently set to “high impedance”
–221 Settings conflict; offset changed due to amplitude
If the existing offset voltage is not valid, the U2761A will automatically adjust it to the maximum DC
voltage allowed with the amplitude specified
–221 Settings conflict; offset changed due to arbitrary span
If the existing offset voltage is not valid, the U2761A will automatically adjust it to the maximum DC
voltage allowed with the arbitrary span on differences in crest factor
–221 Settings conflict; offset changed on exit from dc function
When you select a different function other than DC, the U2761A will adjust the offset voltage as needed to
be compatible with the current amplitude setting
–221 Settings conflict; low level changed due to high level
If you specify a high level that is less than the existing low level, the U2761A will automatically set the low
level to the minimum value allowed lower than the high level
–221 Settings conflict; high level changed due to low level
If you specify a low level that is greater than the existing high level, the U2761A will automatically set the
high level to the minimum value allowed greater than the low level
Tabl e 16-2 Execution errors (continued)