Axis Communications - Network Camera Server PTZ

Network Video
PTZ devices
Videmech 682

Videmech 682 Digital Indoor Pan/Tilt Head

General information
The Molynx Videmech D05RX/L is discontinued by the manufacturer. The information on this page is for reference only. The Videmech 682 Digital is a small indoor 15VDC variable high speed, pan/tilt head, with a max load capacity of 5kg. For more details, please contact Bewator.
Communications info
Method:	RS485
Baudrate:	9600
Data bits:	8
Parity:	Odd
Stop bits:	1
Supported functions
Type:	Absolute
Pan:	-180 to 180 (360 total)
Tilt:	-180 to 180 (360 total)
Zoom:	Yes	(Please contact your local dealer/manufacturer for details on a suitable lens)
Focus:	Yes	Please contact your local dealer/manufacturer for details on a suitable lens)
Iris:	No
Power requirements
Voltage:	15-24V DC
Max Current:	0.8A
Protocol info
Protocol name:	Universal Outstation Communications Protocol
Number of units supported by protocol:	254
Connection schemes
View PTZ connection to camera/video server View camera/video server RS485 pinout
Driver Specific settings
Address:	This is the address of the head connected to the camera (1-255). Please note that address number 255 is reserved for broadcast, i.e. all the connected heads will receive commands sent to this address.
Movement limits:	These limits indicate the end positions in all directions; i.e. left, right, up and down. The limits will assure that the head is kept within certain bounds. Use if there are any obstructions to head movements.
Zoom and focus limits:	These limits indicate the end position for focus and zoom. In order to stop the motors stalling when approaching the mechanical end positions of the attached lens, it is very important that the wide/tele interval is limited accordingly. The Videmech uses feedback POTS to report the position of the Zoom and Focus back to the head, in some cases the full mechanical and electrical span of these POTS are not used. This means that even when the Zoom (or Focus) has reached its mechanical limit, the head still tries to drive the Zoom (or Focus) further because the POT reports the position incorrectly. Most lenses have a mechanical power cut-out switch that prevents damage to the motors, induced by trying to drive the lens past its mechanical limits, but some do not have this feature which means that the lens may be damaged if the values are set incorrectly. To set these values for Zoom follow this procedure: Set the Wide value to 3000 and the Tele value to 4000 (these are the default values). Send the zoom to max wide with the CGI command "http://<VIDEOSERVER name> /axis-cgi/com/ptz.cgi?camera=<CAM nbr> &zoom=1". Now decrease the Wide value by 200. Again send the zoom to max wide with the same CGI command as in step 2 "http://<VIDEOSERVER name> /axis-cgi/com/ptz.cgi?camera=<CAM NBR> &zoom=1". If the zoom moves repeat steps 3 and 4, if not, then go to step 6. Send the zoom to max Tele with the CGI command "http://<VIDEOSERVER name> /axis-cgi/com/ptz.cgi?camera=<CAM nbr> &zoom=9999". Now increase the Tele value by 200. Again send the zoom to max Tele with the same CGI command as in step 6 "http://<VIDEOSERVER name> /axis-cgi/com/ptz.cgi?camera=<CAM NBR> &zoom=9999". If the zoom moves repeat steps 7 and 8, if not, then go to step10. Done.
Zoom and focus enabled:	If a zoom and/or focus lens is not present then uncheck these boxes accordingly.
Optical data:	The MaxDeg setting should correspond to the View angle at max wide. The MinDeg setting should correspond to the angle at max Tele. Follow this procedure to set these values: Click the Home button. Send the zoom to max wide with the CGI command "http://<VIDEOSERVER name> /axis-cgi/com/ptz.cgi?camera=<CAM nbr>&zoom=1". Click a point in the image on the pan axle (click to the left or to the right of the center only; not over or under). If the camera moves too far, decrease the MaxDeg value, if the camera moves too little, then increase the MaxDeg value then go to step 2. If the point clicked centered correctly, then continue to step 5. Send the zoom to max Tele with the CGI command "http://<VIDEOSERVER name> /axis-cgi/com/ptz.cgi?camera=<CAM nbr>&zoom=9999". Click a point in the image on the pan axle (click to the left or to the right of the center only; not over or under). If the camera moves too far, decrease the MinDeg value, if the camera moves too little, then increase the MinDeg value then go to step 2. If the point clicked centered correctly, then continue to step 8. Done.