Endress+Hauser Topcal S CPC310, Руководство по эксплуатации

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Troubleshooting
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10.5 Response of outputs to errors
10.5.1 Current output behavior
An error current is output at the current outputs if an error occurs in the system. You can set the
value of this error current in the Alarm menu (see "Set up 1 - Alarm" section). If you have configured
controllers to function via a current output no error current is output at this current output in the
event of an error.
10.5.2 Response of contacts to errors
For every error message, you can individually set whether the error triggers an alarm (see "System
error messages" section, processing errors in the "Set up 1 - Alarm" section). Failure messages always
generate an alarm (as per NAMUR).
Behavior with standard setting
Incorrect measured pH /
mV value and / or measu-
red temperature value
Transmitter module defective (module:
MKxx). Please first perform tests and
take measures as outlined in the
"Process errors without messages"
section Test measuring inputs:
– Connect pH, Ref and PM directly at the
device with jumpers = display pH 7
– 100
Ω
resistance at terminals 11 / 12 +
13 = Display 0
°
C
If test negative: Replace module (observe
version).
Perform with the aid of the device view in
the "Spare parts" section.
"
Caution!
Display approx. pH 7, value depends on the
zero point error in the last calibration.
Current output, incorrect
current value
Calibration incorrect
Check with integrated current simulation,
connect mA meter directly to the current
output.
If simulation value incorrect: Calibration in
the factory or new M3Cx-x module
required.
If simulation value correct: Check current
loop for load and shunts.
Load too high
Shunt/short to ground in current loop
Incorrect operating mode
Check whether 0–20 mA or 4–20 mA is
selected.
No current output signal
Current output stage defective
(M3CH-x module)
Check with integrated current simulation,
connect mA meter directly to the current
output. If test negative:
Replace central module M3CH-x (pay
attention to version).
Device with PROFIBUS interface
PROFIBUS devices do not have a current
output
Info see "
Ð
> Instrument version".
Error Possible cause Tests and / or remedial action Executed, equipment needed, spare
parts
Device status Alarm relay Limit value / Controller
Normal operation Picked up (failsafe behavior) Appropriate configuration
and operating status
Alarm Dropped out
Voltage-free Dropped out Dropped out