Pelco C2423M User Manual download pdf (Page 5)

OPERATING NOTES

PAN AND TILT FUNCTIONS

Controller Type Pan Tilt

Fixed speed Speed determined by controller Speed determined by controller

Variable speed

Turbo Mode

Preset Mode

0.1 to 80° per second, depending on joystick position

150° per second

250° per second

0.1 to 40° per second, depending on joystick position

200° per second

Does not affect the tilt speed

NOTE:

For American

Dynamics controllers with

only 32 presets, set switch

SW1-7 on the dome drive in

the ON position. When

SW1-7 is ON, preset

99 becomes 32

98 becomes 31

97 becomes 30

96 becomes 29

95 becomes 28

93 becomes 26

92 becomes 25

91 becomes 24

90 becomes 23

89 becomes 22

88 becomes 21

If the limit stops are turned

off (refer to the

Limit Stops

section), presets 23-26 can

be used as regular presets.

If the proportional pan mode is enabled (refer to

Proportional Pan

in the

Programming

section), the pan and tilt speeds will depend on the amount of zoom. At telephoto zoom

settings, the pan and tilt speeds will be slower for a given amount of joystick deflection than

at wide zoom settings. This keeps the image from moving too fast on the monitor when

there is a large amount of zoom. This slowing does not happen when going to a preset, but

does occur in turbo mode when high zoom is selected. The minimum pan and tilt speeds

are 0.1 degree per second at full zoom.

AUTO FLIP

When the camera tilts downward and goes just beyond the vertical position, the dome

rotates 180 degrees. When the dome rotates (flips), the camera starts moving upward as

long as you continue to hold the joystick in the down position. Once you let go of the joystick

after the dome rotates, joystick control returns to normal operation. The auto-flip feature is

useful for following a person who passes directly beneath the camera. Refer to

Auto Flip

the

Programming

section.

SCAN SPEED

Scan speed is adjustable from 1 to 40 degrees per second through the programming menu.

PRESET FUNCTIONS

The Spectra II dome is capable of going to 64 preset locations, each with a 20-character

label. The presets are numbered 1-32 and 35-66. Refer to the documentation for your

control system for programming presets.

When a preset operation is performed, the amount of error in moving to the pan and tilt

position is 1/2 degree. If you command the dome to go to an undefined preset, erratic

operation may result.

Presets 33 and 34 are fixed commands, meaning that you cannot program them. Preset 33

is the “flip” command, which will pan the dome drive 180 degrees. Preset 34 is the “pan zero”

command, which will direct the dome drive to the factory-determined zero reference point.

RANDOM, FRAME, AND AUTO SCANNING

Call preset 97 (30) to start random scanning. Call preset 98 (31) to activate frame scanning

(three seconds of scanning followed by a three-second pause). Call preset 99 (32) to start

auto (continuous) scanning. Scan limit stops are controlled by software. Refer to the

Limit

Stops

section to program the scan limit stops. When the dome reaches a scan limit stop, it

reverses direction. Call preset 96 (29) to stop a scan. Any pan/tilt or lens command also will

stop a scan.

ZONES

The Spectra II dome is capable of eight zones, each with a 20-character label. Depending

on the controller, you can define the zone size and define any zone as “blanked” for video

when the camera pans into the zone area. If zone labels are turned off, the system displays

the message, VIDEO BLANK, to indicate the video is being blanked and is not failing.

(Refer to

Zone Blank

in the

Programming

section for instructions.)

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