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Pelco Manual C466M-E (6/99) 17
4.3 PRESET FUNCTIONS
1. The DRD***2* units are capable of 32 complete preset scenes. On DRD**A2*
models, each preset can have a 20-character label. To set a preset, first enter
the label then program the position.
2. Once programmed, the DRD***2* can be commanded to the preset. Resolu-
tion of the pan and tilt position is 1/2 degree.
3. There are two (2) additional presets that can be programmed; they are pre-
set 33 “FLIP” command which will pan the dome drive 180 degrees from the
position it is at, and preset 34 “PAN ZERO” which will direct the dome drive
to the factory determined zero reference point.
The following applies to dome firmware revision PRG08A21U3-R2.2 and higher
for DRD08A21 and DRD14A21 dome receiver/driver types.
With pan limit stops installed, and when calling preset 34, the dome will move to the
PAN ZERO position. After arriving at this position, the dome may bounce or jitter
back and forth in half-degree increments around the zero position. If left undis-
turbed, the unit will continue this action until the 60-second time out has been
reached. Control of the dome can be resumed at any time by sending a command.
Preset 34 is used in this application to set a zone across the zero position. To accom-
plish this in light of the above mentioned problem, follow the procedure outlined below.
1. Send the dome to preset 34.
2. When the dome arrives at the PAN ZERO position and begins to jitter, abort the
preset call by actuating a lens function. The dome should now be positioned at
the correct position, and the procedure in Section 4.5, ZONES, can be followed.
4.4 FLIP FUNCTION
The flip feature will move the pan position 180 degrees.
4.5 ZONES
1. The DRD**A2* units are capable of 8 zones, each with a 20-character label.
To set a zone, first move the unit to the left-most zone point, enter the label,
then set the zone start point.
2. Next move the unit to the right to the second position and program the zone
end point. The zone priority is from zone 8 to zone 1 with zone 8 having the
highest priority. This means if two zones overlap, the one with the highest
priority will be displayed.
NOTE:
Preset commands are
only in the 32-bit format.
NOTE:
If the DRD is commanded
to an undefined preset, erratic op-
eration will result.
NOTE:
Zone scan must be OFF
to program zones.
NOTE:
Programming the
DRD**A21 across the factory de-
termined zero point will require
splitting the zone in two, using the
zero point as the end of one of the
zones and the beginning of the
other zone.