User Manual

Troubleshooting
R&S
®
FPL1000
858User Manual 1178.3370.02 ─ 03
LOUNL Error in the instrument's frequency processing hardware was detected.
NO REF Instrument was set to an external reference but no signal was detected on the refer-
ence input.
RF OVLD Overload of the input mixer or of the analog IF path.
●
Increase the RF attenuation (for RF input).
●
Reduce the input level (for digital input)
UNCAL One of the following conditions applies:
●
Correction data has been switched off.
●
No correction values are available, for example after a firmware update.
●
Record the correction data by performing a self alignment
WRONG_FW The firmware version is out-of-date and does not support the currently installed hard-
ware. Until the firmware version is updated, this error message is displayed and self-
alignment fails.
10.2 Error Messages in Remote Control Mode
In remote control mode error messages are entered in the error/event queue of the sta-
tus reporting system and can be queried with the command SYSTem:ERRor?. The
answer format of R&S FPL1000 to the command is as follows:
<error code>, "<error text with queue query>; <remote control
command concerned>"
The indication of the remote control command with prefixed semicolon is optional.
Example:
The command TEST:COMMAND generates the following answer to the query
SYSTem:ERRor?
-113,"Undefined header;TEST:COMMAND"
There are two types of error messages:
●
Error messages defined by SCPI are marked by negative error codes. These mes-
sages are defined and described in the SCPI standard and not listed here.
●
Device-specific error messages use positive error codes. These messages are
described below.
Table 10-3: Device-specific error messages
Error code Error text in the case of queue poll
Error explanation
1052 Frontend LO is Unlocked
This message is displayed when the phase regulation of the local oscillator fails in the RF
front-end.
1060 Trigger-Block Gate Delay Error- gate length < Gate Delay
This message is displayed when the gate signal length is not sufficient for the pull-in delay
with a predefined gate delay.
Error Messages in Remote Control Mode