TECSYSTEM T-154 Instalación Y Programación página 22

TECSYSTEM S.r.l ®
ALARM RELAYS TEST
All relays may be tested using the following procedure.
Press and hold the TEST key for 5 seconds. Initially all LED's illuminate, changing to the main
screen display flashing TST.Release the test key when the yellow relay test LED illuminates.
The screen display will show the relay selected for testing and the respective LED will be
illuminated. The relays to test will be indicated on the display by:
• "Fan": cooling relay "Alr": alarm relay "Flt": Pt100 fault relay "trP": trip relay
Use the Scroll or keys to make the selection. Press the SET key to perform the test on
the selected relay. To reset press the RESET key.
To discontinue operation and revert to normal operation, press the TEST key.
At the start of the test, a timer is automatically initiated which reverts the unit to normal
operation if no inputs are detected for a period of five minutes.
DISPLAY MODE
By pressing DISPLAY MODE you can select one of the three display modes:
• AUTO :the display shows automatically the temperature of the hottest channel.
• MAN : each channel may be viewed manually by pressing the
• T.MAX : the unit shows the max. temperature recorded by the sensors and any alarm
recorded after the last reset.
THERMOMETRIC SENSORS DIAGNOSTIC
In the event one of the thermometric sensors installed on the machine to protect is damaged,
the FAULT relay energizes immediately, the ALARM and TRIP LED's of the damaged chan-
nel (Chn) lighten and the FAULT LED is lightening.
The screen will automatically display a message showing the fault condition:
• Fcc sensor is short circuited
• Foc sensor is open
• Fcd sensor is fault
DATA STORED DIAGNOSTIC
If the internal memory is corrupted, at the start up on display it appears the message Ech
with the FAULT alarm. In this case the unit uploads the default parameters; press RESET to
delete the FAULT alarm and the Ech message; start a new programming cycle with the
desired parameters.Turn off and turn on the unit to check if memory work properly. If it is
damaged or broken, on display it appears Ech message again. In this case, send the unit to
Tecsystem for reparation.
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6 Calibration at 100 and 200°C (for temperature monitoring units)
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Date of shipment: ............
20
T154 TEST DESCRIPTION
PC board test
Input test
Test of relay contacts and outputs
Key test
Lamp test
Software test
Burn-in minimum 24h
T154 protection relays
or key.