R&S ZVB - Page 617

R&S
®
ZVA / R&S
®
ZVB / R&S
®
ZVT Remote Control
Status Reporting System
Operating Manual 1145.1084.12 – 30 602
Refer to the Error Messages section for a detailed description of hardware errors including possible
remedies.
The bits in the STATus:QUEStionable:INTegrity register are defined as follows:
Bit
No.
Meaning
2
HARDware register summary
This bit is set if a bit is set in the STATus:QUEStionable:INTegrity:HARDware register and the associated ENABle bit is
set to 1.
The STATus:QUEStionable:INTegrity:HARDware register can be queried using the commands
STATus:QUEStionable:INTegrity:HARDware:CONDition? or
STATus:QUEStionable:INTegrity:HARDware[:EVENt]?
The bits in the STATus:QUEStionable:INTegrity:HARDware register are defined as follows:
Bit
No.
Meaning
0
Not used
1
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. This bit is set if this phase locked loop (PLL) fails.
For external reference: check frequency and level of the supplied reference signal.
2
Output power unleveled
This bit is set if the level control at one of the ports is unsettled (target power was not reached) or unstable (during
measurement), possibly due to an external disturbing signal or to restrictive ALC settings.
Check the ALC Config; check external components.
3
Receiver overload protection tripped
This bit is set if the analyzer detects an excessive input level at one of the ports. If this condition persists, all internal and
external generators are switched off.
Reduce RF input level at the port. Check amplifiers in the external test setup, then switch on the internal source using
OUTPut ON.
...
Not used
7
Instrument temperature is too high
This bit is set if the analyzer detects that the instrument temperature is too high.
Reduce ambient temperature, keep ventilation holes of the casing unobstructed.
8
Oven cold
This bit is set if the oven for the optional oven quartz (OCXO, option ZVAB-B4) is not at its operating temperature.
Wait until the oven has been heated up.
9
Unstable level control
This bit is set if the analyzer detects the ALC to be instable, because of invalid ALC settings.
Check the ALC Config.
10
Problem concerning external generator
This bit is set if an external generator has been configured but cannot be controlled or provides error messages.
Check whether the generator is properly connected and switched on. Check the GPIB address; exclude address conflicts
when using several external generators or other equipment.