Videotec EXDTRX3, Instruction Manual

Page: 18 / 124

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16
6.2.18 Testing the receiver
After having connected the positioning device and
the lens cables, to check the correct working of the
devices, it’s possible to perform an automatic test
which will show the allowed functions:
h Since during this phase the positioning
devices makes automatically some
predetermined movements. Do not lean
on during the test and do not obstruct its
trajectory.
Proceed according to the following indications:
• Power the receiver on;
• Identify the Up arrow-switch (P4 switch) and the
reset switch (P1 switch);
• Keep pushing the Up switch and press the reset
switch;
• Release the reset switch (keep pushing the Up
switch): the automatic test starts;
• After the starting of the test, release the Up switch.
The receiver starts up one function at a time, for
about 3 seconds:
• Pan: Left-right (Led P)
• Tilt: Low-high (Led T)
• Zoom: Wide-tele (Led Z)
• Focus: Far-near (Led F)
• Iris: Close-open (Led I)
The result of the test is shown from the 5 control leds
P, T, Z, F, I (placed near the arrow-switches,
Fig. 06,
page 10 ) at the end of the of the movement of the
Pan&Tilt and lens:
• Led switched on and fixed: The relevant function
(PAN= P, TILT= T, ZOOM= Z, FOCUS= F, IRIS= I)
works correctly;
• Led switched on and blinking: The relevant
function doesn’t work or is not present and cannot
be used for preset/scan/patrol functions.
After some seconds from the end of the test the
receiver automatically starts working.
h A blinking of at least one of the leds at the
end of the test (provided that this function
is included) indicates a malfunction to
which you must find a remedy before the
receiver starts working.
6.2.16 Connecting the pan & tilt and
optics cables
g Before carrying out the following
operations make sure that the pan & tilt
control voltage and the setting for optics
type are correct.
• Disconnect the power supply to the unit;
• Make the connections with the optics and pan &
tilt;
• Reconnect the power supply to the unit.
h For optics and pan & tilt with PRESET
functions (PAN, TILT, ZOOM, FOCUS and
IRIS, VCC and GND), the maximum length
of the preset cables should not exceed 5
metres, otherwise positioning on the stored
positions will be incorrect.
6.2.17 Setting the receiver for PRESET
functions
The receiver has integrated preset functions (for
pan&tilt and the optics).
With PELCO D and MACRO protocols, it is possible to
store up to 40 positions, which can be recalled using
the Scan and Patrol functions on the keyboard.
The receiver is able to make a test to automatically
detect which preset functions are present and
configuring the device is therefore a simple
operation. However, it is necessary to take certain
precautions:
• Before making the receiver test (to determine
which preset functions are active), make sure
the cables for pan&tilt and the optics have been
connected correctly;
• For the preset cables (PAN, TILT, ZOOM, FOCUS,
IRIS, VCC and GND) use cables with a maximum
length of 5m.