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ASA Electronics 0200630A User Manual Download Page 48

 

 

AZ800 user manual - hardware 

 

 

 

Created by: MPuchner 07.2019 

 

version: 9600021A 

Original user manual  

page 48 of 68 

  

printed: 04.03.2020 

 

 

11

 

Fans 

There are 7 120mm fans installed in the telescope. 3 of them blow air onto the back side of the primary mirror 
to achieve a mirror temperature equal to the ambient temperature as fast as possible. The other 4 fans blow air 
onto the primary mirror surface to remove layers of warm air. 

The fans can be switched on and off via software. 

 

Figure 43 - fans 

 

 

Summary of Contents for 0200630A

Page 1: ...user manual hardware Created by MPuchner 07 2019 version 9600021A Original user manual page 1 of 68 printed 04 03 2020 AZ800 800mm Ritchey Chr tien AltAZ Telescope f 6 8 f 2 5 with Nasmyth focus 0200...

Page 2: ...s specific hazards 9 1 12 Emergency shutdown 10 2 Product description 11 2 1 Drives and controllers 12 2 2 Telescope control unit TCU 14 2 2 1 Software 14 2 3 Electrical Specifications 14 2 4 Dimensio...

Page 3: ...side 43 9 7 Telescope bottom side 44 9 8 Connecting cables for camera and other user specific devices 45 10 Emergency Switches 47 11 Fans 48 12 Optics collimation 49 12 1 Collimating the tertiary mir...

Page 4: ...the manual dangers can be avoided work processes can be optimized and accelerated repair costs and downtimes can be minimized reliability and lifetime can be increased This user manual should also be...

Page 5: ...ery modification overriding or putting safety installations of the machine out of operation When the machine is operated in a technically not impeccable condition When technical defects are unremedied...

Page 6: ...here this document is located The machine must only be operated and maintained by competent personnel who knows the safety arrangements and residual danger and who became instructed Every action that...

Page 7: ...s to avoid or reduce these hazard and risks Not considering these hints might lead to health damaging consequences up to lethal injuries Signal word meaning DANGER Indicates an actual hazard with a hi...

Page 8: ...pening it Caution against hand injuries On the telescope fork Keep your hands away from the danger zone during telescope movement Due to changed weight balance due to removing adding components on the...

Page 9: ...the technical condition of the machine concerning apparent damages and defects and altered operational behaviour Reporting damages and defects immediately to the supervisor Only using impeccable and s...

Page 10: ...safety regulations safety data sheets Consider the environment friendly usage and correct disposal of these products CAUTION Always ensure that the machine cannot be used or powered on by unauthorized...

Page 11: ...with nasmyth focus in a fork mount It is driven by direct drive torque motors combined with high resolution optical absolute encoders for position feedback The tertiary mirror can be rotated by a torq...

Page 12: ...d 290mm max torque 140Nm Controller ASA Torque motor controller board Feedback Sensor high resolution optical absolute encoders max rotational speed 6 up to 10 optional max travel angle in azimuth 340...

Page 13: ...eight balance of the telescope does not change regardless if the covers are open or closed Derotator optional The derotator is a separate device mounted to one of the fork sides Motor Stepper motor wi...

Page 14: ...running ASA s telescope control software Autoslew Alternatively linux software is available 2 3 Electrical Specifications The telescope is completely powered by the power supply units inside the teles...

Page 15: ...user manual hardware Created by MPuchner 07 2019 version 9600021A Original user manual page 15 of 68 printed 04 03 2020 2 4 Dimensions and weight Weight 900kg 1990lbs Figure 2 Dimensions Figure 3 Dime...

Page 16: ...terferogram comes with the telescope If you want to learn more about ASA s optics manufacturing and outstanding testing methods click here Focal length 5476mm f number 6 8 optical Diameter 800mm Mirro...

Page 17: ...Storage temperature 30 C 50 C Ambient operating Humidity 95 RH max non condensing 3 Delivery contents AZ800 telescope Including fork mount und telescope with ASA optics Telescope electronics cabinet I...

Page 18: ...te 3 that includes the telescope cabinet The tool box 4 is mounted on top of this crate Figure 5 Packaging 1 Crate for AZ800 lower part 165 x 120 x 165cm 930kg length x width x height 2 Crate for AZ80...

Page 19: ...et connection completely accessible for ASA stuff during the whole installation process min data rates 5Mbit s download 500kbit s upload available port on your local Ethernet switch Operator computer...

Page 20: ...concrete pillar In this case the centre hole must be smaller than 300mm in diameter In the red marked area there will be the holes for the thread rods used for fixing the telescope on the pillar Keep...

Page 21: ...s to be placed in the correct orientation Make sure that the ASA logo points roughly towards the north direction if the observatory is located in the northern hemisphere If the observatory is on the s...

Page 22: ...uring drilling Use a vacuum cleaner during drilling for removing the drilling dust immediately Note Sometimes it is not possible to drill all the holes due to iron in the concrete Just leave these hol...

Page 23: ...ser manual page 23 of 68 printed 04 03 2020 Put M12 nuts onto the rods and put the template on them to align the thread bolts Figure 8 Figure 11 Figure 12 Consider the curing time of the adhesive befo...

Page 24: ...iginal user manual page 24 of 68 printed 04 03 2020 5 5 Lifting the telescope lower part Remove the lower transport restraints on both sides Figure 13 lower transport restraints Remove the 5 covers of...

Page 25: ...gs WARNING Only use the included lifting straps WARNING Do not stand under suspended loads Figure 15 how to lift telescope lower part There is a marking on the telescope base Place the telescope so th...

Page 26: ...reated by MPuchner 07 2019 version 9600021A Original user manual page 26 of 68 printed 04 03 2020 Figure 16 south north marking on the telescope base Lift the telescope onto the thread rods Figure 17...

Page 27: ...and want to lay cables through the pillar you need to remove the bottom cover plate 1 of the telescope before placing it on the concrete Figure 18 bottom cover plate Remove the cover plate to gain ac...

Page 28: ...07 2019 version 9600021A Original user manual page 28 of 68 printed 04 03 2020 5 6 Lifting the telescope upper part Fix the lifting belts as shown in the picture below Figure 20 how to lift telescope...

Page 29: ...t in the correct orientation There are cables hanging in one of the upper parts corners This corner belongs to the corner of the lower part where the clamp terminals are located Be careful not to clam...

Page 30: ...ure below This cable provides the power supply and data connection of the focuser The USB hub you can see on the following pictures is only present if your telescope is equipped with 4 nasmyth ports o...

Page 31: ...2020 Newer version Figure 23 telescope top part cable connection newer version Terminal function wire colour of cable coming from the telescope top 1 Fans 2 Fans 3 24VDC black 4 24VDC 5 GND 6 GND blue...

Page 32: ...Created by MPuchner 07 2019 version 9600021A Original user manual page 32 of 68 printed 04 03 2020 5 9 Mount stray light covers Mount the stray light covers on each side with 4 M5x12 lens head screws...

Page 33: ...maintenance purposes you can fix the elevation axis by tightening the elevation axis brake Therefor tighten the lever by rotating it clockwise Pull the lever rotate it and then release it again to shi...

Page 34: ...erefor lay the water level onto the centre of the fork and adjust the pitch by using the adjustable telescope feet You need a 17mm and a 24mm jaw spanner for that Figure 26 water level and adjustable...

Page 35: ...600021A Original user manual page 35 of 68 printed 04 03 2020 Then put a washer and a nut onto the thread rods and tighten it Figure 28 fix telescope on the ground with washer and nut Now you can atta...

Page 36: ...ou make sure that the azimuth axis is in the correct revolution before you start with the initial operation That means that you need to rotate the azimuth axis to the centre of its movement range Ther...

Page 37: ...printed 04 03 2020 9 Cable connections 9 1 Overview CAT5E CAT6 Ethernet cable CAT5E CAT6 Ethernet cable USER PC Ethernet switch Internet UPS Power cord 110 230VAC Power cord Remote USER PC if you wan...

Page 38: ...5kg Figure 32 telescope cabinet The cabinet should be located somewhere near the telescope The included cable between cabinet and telescope has a length of 15m The cable comes already connected to the...

Page 39: ...AZ800 user manual hardware Created by MPuchner 07 2019 version 9600021A Original user manual page 39 of 68 printed 04 03 2020 Figure 34 telescope base connector...

Page 40: ...er switch provides 8 110 230VAC ports that can be switched on and off by using a web interface 3 ports are used for powering the main drives controller ancillary drives controller and telescope contro...

Page 41: ...USB you can connect your camera filter wheel here or you can connect a keyboard mouse to access the telescope control unit TCU for maintenance purposes 4 HDMI you can connect a monitor here to gain a...

Page 42: ...nection 2 Filter wheel optional contains power and data connection 3 USB you can connect your camera filter wheel 4 In outlet for user cables you can lay wires for your equipment through this hole see...

Page 43: ...4th nasmyth focus option is installed you can connect your camera filter wheel 3 Derotator optional is only present when 3rd and 4th nasmyth focus option is installed contains power and data connecti...

Page 44: ...nd 4th nasmyth focus option is installed you can connect your camera filter wheel 3 Derotator optional is only present when 3rd and 4th nasmyth focus option is installed contains power and data connec...

Page 45: ...manual page 45 of 68 printed 04 03 2020 9 8 Connecting cables for camera and other user specific devices There are several openings in the telescope to lay additional cables through the telescope Rem...

Page 46: ...axis and to the outside through the brush hole in the base plate Figure 41 user specific wiring Consider that the camera and other devices rotates by 90 with the elevation axis The movement can be ev...

Page 47: ...s There are 2 emergency switches located on the back sides of the fork arms Figure 42 Emergency switches By pressing one of the buttons the motor controller s power supply is disconnected So the main...

Page 48: ...are 7 120mm fans installed in the telescope 3 of them blow air onto the back side of the primary mirror to achieve a mirror temperature equal to the ambient temperature as fast as possible The other 4...

Page 49: ...fine tune the collimation when installing the telescope Nevertheless the whole collimation procedure is described in this chapter Fix the elevation axis at an angle so that the tertiary mirror is eas...

Page 50: ...manual page 50 of 68 printed 04 03 2020 Then mount the 2 inch adapters on both of the nasmyth focus ports and insert the lasers ATTENTION Do not look directly into the laser beam This might harm your...

Page 51: ...to be located in the correct height Switch on one of the lasers Rotate the tertiary mirror by hand so that it is orientated 90 to the laser When the laser beam slightly touches the mirror surface the...

Page 52: ...19 version 9600021A Original user manual page 52 of 68 printed 04 03 2020 To adjust the offset you need to raise or lower the mirror by evenly using the push and pull screws shown in the picture below...

Page 53: ...the mirror If it does not the mirror can be shifted up and down by using the screws shown in the picture below First loosen the dovetail screws 1 2 then use the push and pull screws 3 for actually mo...

Page 54: ...ng the tertiary mirror for switching between nasmyth foci For aligning the inclination of the tertiary mirror you have to switch between the 2 focus ports several times by rotating the tertiary mirror...

Page 55: ...tiary mirror has to be rotated so that the returning laser point 2 is in one line green line in picture with the laser origin 1 The red line in the picture shows how the laser point moves when you twi...

Page 56: ...of the secondary mirror The curved lines illustrate how the laser point moves on the secondary mirror when you rotate the tertiary mirror one of them is for the laser in nasmyth focus port A the othe...

Page 57: ...red in the sticker on the secondary mirror When you now switch to the other focus port by rotating the tertiary mirror you will see that now the laser point is in a different position as it was on the...

Page 58: ...sh and pull screws behind the mirror Figure 53 how to tilt the tertiary mirror Tilt the mirror a bit and then check the position of the laser point of the other nasmyth focus port Repeat this procedur...

Page 59: ...A Original user manual page 59 of 68 printed 04 03 2020 12 5 Collimating tertiary mirror axle If the laser points remain outside the centre triangle the tertiary mirror axle has to be tilted Therefor...

Page 60: ...d 04 03 2020 The tertiary mirror axle can be tilted by using the push and pull screws shown in the picture below Figure 56 push and pull screws for tilting the tertiary mirror axle Tilt the axle so th...

Page 61: ...f 68 printed 04 03 2020 12 6 Collimating the secondary mirror The secondary mirror has to be tilted so that the laser points back to its origin Use the push and pull screws to tilt the mirror Figure 5...

Page 62: ...AZ800 user manual hardware Created by MPuchner 07 2019 version 9600021A Original user manual page 62 of 68 printed 04 03 2020 Figure 60 after secondary mirror collimation...

Page 63: ...are manual Centre a star with moderate brightness and defocus it until you see the star as a ring It is recommended to choose a star 45 above horizon or higher to make sure that the primary mirror alw...

Page 64: ...mation screws in or out by using an allen key and watch the image of the star By tilting the mirror you should be able to centre the obscuration You will notice that the star starts to move as soon as...

Page 65: ...ocus this needs to be considered when manufacturing the telescope Figure 64 nasmyth focus ports Depending on your camera model and if you want to use accessories such as derotator or filter wheel the...

Page 66: ...be used for additional power supplies for cameras or other equipment considering the technical limitations of the device For operating the telescope you need to switch on all of these 3 ports By pres...

Page 67: ...to gather flowing off liquids Put the elevation axis in a horizontal position and fix it with the brake described in chapter Brake for Elevation axis Now the mirrors are in a vertical position so tha...

Page 68: ...not to apply any pressure Now wash the mirror with pure distilled water to remove the residuals of the detergent Again wipe from top to bottom Now spray pure isopropanol onto the mirror The alcohol f...

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