EN
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Bosch Security Systems | January 19, 2006
LTC 8561 |
Instruction Manual
|
Local Test Operation
4.27 Power Up Operation
CAUTION: The receiver/driver performs a
calibration test which operates the pan/tilt and
zoom lens motors when AC power is first
applied to the unit. Ensure that movement of
the pan/tilt during this power-on test will not
cause damage or create a hazardous condition
before applying AC power to the unit.
It is important to have both the pan/tilt and zoom lens
wiring connected to the receiver/driver before AC
power is applied to the unit. This includes pre-position
wiring if the pan/tilt and zoom units are equipped with
this option. The power-on calibration test is used to
determine if the pan/tilt and zoom lens is equipped
with the pre-position option. The receiver/driver also
automatically adapts to the polarity used to connect
the pre-position sensor voltage supplies. If the pre-
position feedback signals are not detected during this
test, subsequent pre-position commands received from
the control site during normal operations are ignored.
If it is necessary to prevent movement of the
pan/tilt/zoom at this time, the calibration test may be
bypassed by pressing the local test button while
applying the AC power.
5
LOCAL TEST OPERATION
In order to simplify installation and testing, a Local
Test push button is provided so the receiver/driver can
be checked without having to receive commands from
the system. Locate the four digit thumbwheel switch,
ADDRESS, and the small test push button switch next
to the thumbwheel switch, LOCAL TEST, on the main
printed circuit board. Follow these steps:
1. Note the location address that may be on the
thumbwheel switches. This number should be
written down so it can be reentered when
finished with the local test procedure.
2. From the table below, enter the desired number
of the function you wish to test, using the digital
thumbwheel switches.
3. Push the local test push button to activate test as
selected.
4. Release push button and repeat steps 2 and 3 if
additional tests are desired.
5. Be sure to set the thumbwheel switches back to
their original address number so that this device
can be properly activated by the system.
Thumbwheel No.
Function
0000
Calibration Test / Reset
0001
Pan Right
0002
Pan Left
0003
Tilt Down
0004
Tilt Up
0005
Zoom Out
0006
Zoom In
0007
Focus Near
0008
Focus Far
0009
Iris Close
0010
Iris Open
0011
Aux 1 ON
0012
Aux 1 OFF
0013
Aux 2 ON
0014
Aux 2 OFF
0015
Aux 3 ON
0016
Aux 3 OFF
0017
Aux 4 ON
0018
Aux 4 OFF
0019
Aux 5 ON
0020
Aux 5 OFF
0021
Aux 6 ON
0022
Aux 6 OFF
0023
Aux 7 ON
0024
Aux 7 OFF
0025
Aux 8 ON
0026
Aux 8 OFF
0101–0199
Shot Pre-position 1–99
0201–0299
Set Pre-position 1–99
9999
Clear All Pre-positions
NOTE that these tests may be done at an electronics
workbench to test the receiver/driver, as well as the
pan/tilt device prior to installation. However, since
most installations require field cabling, this procedure
is also useful to the field installer.
6
ADDITIONAL FUNCTIONS
6.1
Dither
Since low light level cameras may be prone to image
burning, this unit has a function, called Dither, which
moves the pan head right and left automatically.
Approximately every two minutes, if the unit has not
been accessed for a function, the pan head is moved
for 0.5 second, always reversing from its last dither so
the same scene is maintained.
This function is controlled from the system keyboard
by using the auxiliary 5 command. Auxiliary 5 ON
activates the function while auxiliary 5 OFF
deactivates it. Immediately upon activation of dither,
the pan motor goes through the dither movements to
indicate that dither has been activated.
