Alarm, fault and system messages
12.3 Online diagnostics
SIPART PS2 with PROFIBUS communication
Operating Instructions, 09/2007, A5E00127926-07
233
Error
code
Three-
stage
Event
Parameter setting Fault message disappears
when
Possible causes
13
Yes
Temperature
undershot
H. TMIN≠OFF
... the lower temperature
thresholds are no longer
undershot.
Ambient temperature too low
14
Yes
Temperature
overshot
J. TMAX≠OFF
... the upper thresholds are
no longer overshot.
Ambient temperature too high
15
Yes
Position average
deviates from the
reference value
P. PAVG≠OFF
... the position average
calculated after a comparison
interval is again within the
thresholds for the reference
value, or the function is
deactivated.
In the last comparison
interval, the valve trajectory
was changed so severely that
a deviating position average
was calculated.
1)
Refer to the corresponding parameter descriptions for additional information about parameters.
12.3.4
Meaning of error codes
1 Monitoring of control deviation
The deviation between the setpoint and the actual value is continuously monitored in the
automatic mode. The fault message for the remaining control deviation is activated
depending on the setting of the " TIM" parameter, monitoring time for setting the fault
messages and " LIM" and the response threshold. The fault message is cancelled as soon
as the control deviation drops below the response threshold.
2 Automatic mode monitoring
If the " FCT" parameter is set correctly and the fault message output is functioning properly,
a fault message is generated when the device is not in the automatic mode. A warning can
thus be sent to the control system when the device was switched to manual or configuration
mode on-site.
3 Binary input BE1 or BE2 active
If the " FCT" and the "BIN1" parameters are set correctly and the fault message output and
binary input 1 are functioning properly, a fault message is generated when the binary input is
activated. For example, it can be a switch to monitor the packing glands, a temperature
switch or a limit switch (e.g. for pressure).
Binary input 2 (in the optional alarm unit) can be configured in a similar manner.