20+inch+Observatory+and+Telescope+documents

=__Operations and Maintenance manual__=

Information on the design and construction of the dome can be found in the PDF document linked below.

Please note that the telescope drive has now been replaced with the [|Sidereal Technology servo system]. References and extracts to Mel Bartels stepper system are still in the document and may be out of date. [|Please see Mel's site for the latest information].

This manual is undergoing a major upgrade due to the changing of the drives over to the [|Sidereal Technology] servo system. The manual below is for the old stepper system.



Wind loading spreadsheet:[|WindLoadingNetForces.xls] Dome drive calculations: [|Dome drive calcs.xls] Telescope drive system calculations: [|gear ratios_for new servo system_R1.00.xls] Information on home made Dew heaters

=__Cable calculations and load schedule__=

Installing a plug in power monitor in 2010 has revealed that the 'actual' power consumed is significantly less than calculated?! No idea why.... [|Observatory_load_schedule_R1.00 .xls] [|Observatory_feed_cable_R1.00.pdf] [|Garage_feed_cable_R1.00.pdf]

=__Drawings__= The drawings are drawn up in TinyCAD. PDFfiles are supplied also.

TinyCAD is a free, quickand easy tool to use without the need for full AutoCAD. It is ideal for smaller electrical circuits.


 * http://tinycad.sourceforge.net/**

SiTech control layout
THESE NEED UPDATING! [|Sitech_control_layout_R3.00.pdf] [|Sitech_control_layout_R3.00.doc]

Software architecture
THESE NEED UPDATING! [|Software architecture_R2.00.pdf] [|Software architecture_R2.00.doc]

Network layout
THIS NEEDS UPDATING TO SHOW RUNOFF ROOF ALSO Servo version:- [|Block_diagram_network_layout_R5.00.pdf] [|Block_diagram_network_layout_R5.00.doc]

Stepper version(now redundant):- [|Block_diagram_network_layout_R3.00.jpg] [|Block diagram network layout_R3.00.doc] [|Block diagram network layout_R3.00.PDF]

Main power distribution
THESE NEED UPDATING! [|20 INCH F4 MAIN POWER DISTRIBUTION.dsn] [|20 INCH F4 MAIN POWER DISTRIBUTION.pdf]

Dome power distribution
[|20_INCH_F4_DOME_DISTRIBUTION.dsn] [|20_INCH_F4_DOME_DISTRIBUTION.pdf]

Dome door drive
[|20 INCH F4 DOME DOOR.dsn] [|20 INCH F4 DOME DOOR.pdf]

Dome door emergency close
[|20 INCH F4 DOME DOOR EMERGENCY CLOSE.dsn] [|20 INCH F4 DOME DOOR EMERGENCY CLOSE.pdf]

Dome Azimuth motor control
[|20 INCH F4 DOME MOTOR CONTROL.pdf] [|20 INCH F4 DOME MOTOR CONTROL.dsn]

Weather station
[|WEATHER_STATION_R1.00.pdf] [|WEATHER_STATION_R1.00.dsn]

USB I/O drawings to produce yet!

Link to Finder relay information:- []

Archive files for the old weather station:- [|20_INCH_F4_WEATHER_STATION_1.pdf] [|20_INCH_F4_WEATHER_STATION_1.xml]

Power control to instruments and services
[|20 INCH F4 POWER CONTROL.dsn] [|20 INCH F4 POWER CONTROL.pdf] [|20 INCH F4 POWER CONTROL WIRING DIAGRAM.dsn] [|20 INCH F4 POWER CONTROL WIRING DIAGRAM.pdf]

On-mount cabling
[|20 INCH F4 CABLING ON MOUNT.dsn] [|20 INCH F4 CABLING ON MOUNT.pdf]

[|20 INCH F4 LIMITS ON MOUNT.dsn] [|20 INCH F4 LIMITS ON MOUNT.pdf]

USB I/O PANEL
[|20 INCH F4 USB IO PANEL.dsn] [|20 INCH F4 USB IO PANEL.pdf]

USB I/O INTERFACE CARD
[|20 INCH F4 USB STRIP BOARD LAYOUT.dsn] [|20 INCH F4 USB STRIP BOARD LAYOUT.pdf]

LED Indicator panel
[|20 INCH F4 LED INDICATOR PANEL.dsn] [|20 INCH F4 LED INDICATOR PANEL.pdf]

=__Data sheets__=

[|Humidistat_Manrose_0950.JPG] (Now redundant) [|Humidistat_Manrose_0950_sheet2.JPG] (Now redundant) [|RJ45_wiring.JPG] [|Kemo light switch.pdf] [|Kemo_light_switch_sheet2.JPG] [|Kemo rain sensor.pdf] [|Soft_start_Control_module_RS-330-5358.pdf] Power relays for motor control [|Bridge Rectifiers.mht] (Rectifiers for dome drive) Dome door limit switches [|Heavy Duty Reed Switch.mht] (Magnetic reed switches used for dome Azimuth control) 12V relays 24V power supplies 12V power supplies Batteries Battery chargers Voltage regulator Wind sensor switch Sitech controller Servo motors Encoders [|USB Extender 4 Port Hub.mht] (4 port USB extender) [|Low Cost Standard.mht] [|K8055_DLL_USB_IO_User_manual.pdf] [|K8055_USB_IO_installation_manual.pdf]

=__Instruments__=

SBIG ST4 (now de-commissioned) MX716 CCD (main camera) Meade DSI (auto guider) Webcam Computers