R&S ZVB - Configuration Errors

R&S
®
ZVA / R&S
®
ZVB / R&S
®
ZVT Annexes
Error Messages, Troubleshooting
Operating Manual 1145.1084.12 – 30 1168
explanatory and easy to correct.
 Hardware errors indicate an incorrect hardware state. Some of the hardware errors cause the
instrument to be switched off in order to avoid damage. Hardware errors with possible causes and
remedies are listed below.
A misspelled command header causes SCPI error –113, "Undefined header;..."; a misspelled
parameter causes SCPI error –141, "Invalid character data;...". The GPIB explorer provides a list of all
supported commands and their character data parameters.
Hardware error categories
Hardware errors can be detected at various stages of the start-up or measurement procedure.
 Configuration errors occur on start-up of the analyzer, e.g. if a hardware module or configuration
file cannot be detected. Configuration errors cause an entry in the error log (Info – Error Log).
 Asynchronous errors can occur any time while the analyzer is operating. The analyzer is checked
periodically for asynchronous errors.
 Measurement errors are due to inadmissible hardware settings and states during the
measurement process.
Configuration Errors
Configuration errors occur on start-up of the analyzer, e.g. if a hardware module or configuration file
cannot be detected. Configuration errors cause an entry in the error log (Info – Error Log).
Error
Description
Remedy
FMRxx CPU board requires Netcon
Digital PCI version 8.5 or higher for
maximum performance!
The analyzer is equipped with a CPU board
FMR9 or higher, but the PCINT FPGA wasn't
upgraded to version 8.5 or higher.
The analyzer is still functional but for
maximum performance the FPGA upgrade
should be performed by R&S service.
Asynchronous Errors
Asynchronous errors can occur any time while the analyzer is operating. The analyzer is checked
periodically for asynchronous errors. Many of these errors also cause an entry in the status reporting
system.
Error
Description
Remedy
Bit
no.*)
Instrument
temperature is too
high
The analyzer detects that the instrument temperature is too high.
After three warnings, the analyzer is shut down.
Reduce ambient temperature,
keep ventilation holes of the
casing unobstructed.
7
Receiver overload
protection tripped
The analyzer detects an excessive input level at one of the ports. If
this condition persists, all internal and external generators are
switched off (Channel – Power Bandwidth Average – RF Off).
Reduce RF input level at the
port. Check amplifiers in the
external test setup.
3
Reference
frequency lock
failure
With external reference signal (System – External Reference active)
or option ZVAB-B4 (oven quartz), the reference oscillator is phase
locked to a 10 MHz signal. The message appears when this phase
locked loop (PLL) fails.
For external reference: check
frequency and level of the
supplied reference signal.
1
Converter clock
frequency lock
failure
The clock generator for the AD converter clock is phase locked to
the reference oscillator. The message appears when this PLL fails.
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