14 troubleshooting – Videotec DTRX3 User Manual
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MNVCDTRX301_0850
14 Troubleshooting
Although the DTRX3 receiver is characterized by a great ease of use, sometimes troubles may occur,
especially during the installation and configuration phases or using the unit.
PROBLEM
PROBABLE CAUSE
REMEDY
Led LD1 is off
• No power supplied to the unit
• The fuse is blown
• Check the power cable
• Replace the F5 fuse
Led LD1 is on but the
commands are not
executed
• Wrong configuration of the
reception
• Wrong
connection
• Wrong DTRX3 identification
• The unit is blocked
• Wrong communication speed or
protocol
• In case of RS485 mode, check if the load
is inserted/not inserted with JP5 jumper. In
case of Current Loop mode, verify that the
JP2 and JP3 jumper are on CL position.
• Check the connecting cables
• Check the identification number of DTRX3
(SW1-SW2-SW3)
• Press the reset key P1 or turn off the
power supply
• Check the setting of dip 1,2 and 8 of SW4
and of dip 1 of SW6
The positioning device
does not work
• Wrong power supplied to the
positioning device
• Make sure that the supply voltage of the
positioning device corresponds to the one
supplied by the receiver
The lens does not work
• Wrong lens voltage
• Check the adjustment of the TR1 trimmer
The alarms does not
work
• Wrong configuration of alarms
dip
• Control the setting of Dip3, 4 and 5 of
SW4
In a cascade connection,
the units which follow do
not receive the user’s
commands
• Wrong
connection
• Wrong configuration of the
reception
• Dip switch wrong configuration
• Check the connecting cables
• In case of RS485 mode, check if the load
is inserted/not inserted with JP6 jumper. In
case of Current Loop mode, verify that the
JP2 and JP3 jumper are on CL position.
• Control the address setting of the non-
functioning units