5
FI002K0018v1530hUK – THS/21 Instruction manual for installation, use and maintenance
MAINTENANCE
178 ORIGINAL
INSTRUCTION
5.3 Troubleshooting
All the power supply voltages in the power supply card are protected by self-resetting fuses which can be activated if
there is an overload or faulty connection, for the voltage values on the card,
except for the mains voltage
. Refer to
the description of the inputs and outputs.
The THS systems have a self-diagnosis system which displays error messages, strictly related to
the operation of the Metal Detector or to controls activated on the system input lines. For these
messages, refer to the
5.6
Self-diagnosis
section.
For fault conditions not indicated because of faulty electrical installation or configuration of the Metal
Detector, see the following tables:
Problem
Possible causes
Solutions
Display OFF
Green and red indicators OFF,
internal siren NOT activated,
Metal Detector NOT detecting
metal masses.
System not powered
Check that the System is correctly powered and that the main
switch is in I position.
System power supply fault
Check the state of fuse F10 (and F11, F12 with
) and that
the power supply voltage is compatible with the System nominal
values.
If the problem persists, contact Assistance Service.
Display OFF
Green and red indicators OFF,
internal siren NOT activated,
Metal Detector correctly detects
metal masses.
Control panel fault
Check the connections between the ALM card and the RCU card
on the
or on the Remote Control Unit RCU.
If the problem persists, contact Assistance Service.
Display OFF or BLINKING
Green and red indicators ON,
internal siren activated.
Incorrect connection or
fault of a component
connected to the System
cards
Check the connections between the SCD card and the ALM card.
Check the connections between the SCD card and the Probe.
Disconnect all the devices connected to the ALM card, switch off
the system and switch it on again after a few minutes, if self-
resetting protective devices have been activated.
Connect them back one by one (with system off) in order to locate
and replace the one/s generating the fault.
If the problem persists, contact Assistance Service.
NO ejection
after an alarm
Ejection system fault
Check electical and pneumatic connections of the ejection
system.
In non-integrated systems, check that the ejector
electrical/pneumatic characteristcs are compatible with the
System minimum requirements.
In case the EJECT RELAY is used, check the related fuse status.
Synchronization photocell
fault
With a Synchronized Ejection Mode, check the correct activation
and programming of the Synchronization photocell.
Other programming
parameters fault
Check that PML parameter is adequately lower than the length of
the current product or that the product generating alarm was
correctly oriented.
Without an Encoder installed, check that the KE parameter is set
to 0.
If the problem persists, contact Assistance Service.
