Simtronics DM-TT6-K, Operating Manual

Page: 46 / 60

MultiXplo / MultiTox
Page 46 / 60 NOSP15759-Rev 10
7.3. List of main faults
In addition of the current loop faults, other information are available from the wireless
communication tool TLU600 (refer to § 6.5). If the detector does not work properly, the
following table can help you to determine the causes and effects of different possible
troubles .
FAULTS CAUSES SOLUTIONS
Green LED OFF
Power supply failure
Check the power supply (18 and 28 V
DC
) at the
detection unit or the PLC output
Continuity issue Check line continuity
No 4-20 mA / 0-22 mA
signal
3-wires cabling
Power supply failure
Check the power supply (18 and 28 V
DC
) at the
detection unit or the PLC output
Continuity issue Check line continuity
No shunt between V+ and L+ Place the shunt
No 4-20 mA / 0-22 mA
signal
4-wires cabling
Power supply fault Check the loop with a milliammeter.
ZERO_FAULT
(Zero point fault)
Zero point resetting impossible
Fault memorized, even on a power supply shut
down. To acknowledge this fault, make a full
calibration (in general, the sensor needs to be
replaced).
DRIFT_FAULT
(Zero point drift)
Sensor drift: the measure is below -
10%
Non-memorized fault. Automatic
acknowledgement when the measure goes back
above -10%. Resetting the zero point is
necessary.
CALIB_FAULT
(Calibration fault)
Calibration resetting impossible
Memorized fault, even on a power supply shut
down. To acknowledge this fault, make a full
calibration (in general, the sensor needs to be
replaced).
SELFTEST_FAULT
SENSOR_FAULT
(Fault material)
Material trouble (electronic part
failure) on the sensor or on the
electronic board of the detector
This fault is triggered if there is no
sensor in the detector.
Non-memorized fault. Automatic
acknowledgement when the detector is back to
normal operation conditions.
An electronic failure of the detector hardly
happens. Replacing the cartridge will solve the
problem most of the time.
TEMPERATURE_FAULT
Temperature fault)
Temperature sensor is out of order
or disconnected. The temperature
sensor is in the cartridge.
Non-memorized fault. Automatic
acknowledgement when the detector is back to
normal operation conditions.
Replace the cartridge.
No wireless
communication tool
connection
Detector unpowered Check that the green LED flashes.
Dialogue problem
Check the wireless communication tool by using
it on another detector.
Detector fault
(Material fault)
Electronic fault Replace the detector