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TEPP User Manual 

Triangulum Astro Kft. 

 

6

 

Rear panel connectors and switches 

 

 

1)  Motors and limit switches 

Connection for the TEPP’s stepper motors and limit switches. Do not disconnect or 
modify these connectors!  

2)  5V USB out 

Standard USB socket to charge your remote controller. Ouput current is limited to 
200 mA. This port is only for charging, doesn’t support any communication, do not 
connect to your PC or LapTop! 

3)  Hemisphere slection switch 

Use this switch to select the hemisphere according to your location. This switch must 
be set before power on! After you turned on the controller, it is not possible to change 
hemisphere! 

4)  Tracking mode selection switch 

TEPP can be used to track the Sun or the Moon too. Use this switch to select the 
required tracking mode. For standard sky astrophotograpy always set to STAR 
position. Change it only if you’re taking photos of the Sun or Moon! 

 
Before start using the platform, always make sure that the HEMISPHERE swith is in the right 
positon! There is no way to change the hemisphere slection during an active tracking. To do 
that, you have to restart the controller after hemisphere is selected.   
 

2.5.2 Powering up 

To power up the controller, turn off the main switch, then connect a 12 V DC power source to 
the connector  12V IN. Always use this dedicated power input connector for the 12 V power 
supply!  All  of  the  other  connectors 

–  marked  as  12V  OUT-  are  outputs.  You  can  use  the 

attached  12  V  car  cigarette  lighter  adapter,  or  any  other  power  supply  with  12  V  regulated 
output voltage and with a minimum 3 A output current rating. Always take care of the right 
polarity,  however  the  controller  is  protected  against  reverse  polarity.  After  connecting  the 
power to the input, you will hear a short click. This is the sound of the output prtection relay, 
and this is part of the normal operation. Now the 12 V auxiliary outputs are enabled, and you 
can  connect  your  own  devices  to  them  now  (camera  power,  heating  or  cooling  circuits, 
autoguider, etc…). Each output has 4 A maximum output current, and they are shor-tcircuit 

Summary of Contents for TEPP

Page 1: ...User Manual TEPP Triangulum Equatorial Photographic Platform ...

Page 2: ...up 6 2 5 4 Wireless Remote Controller 7 2 5 5 Reaching a Limit Switch 8 2 5 6 Beep Signals 8 3 Changing the Operation Latitude 8 4 Transport 9 5 Periodic Maintenance 10 6 Troubleshooting 11 7 Specification 12 1 Packing List Your package contains the following items Item description Quantity pcs TEPP Platform 1 Threaded mounting legs 5 Remote controller 1 M8 thread with a wing nut and washers 1 12V...

Page 3: ... visual observation If you plan astrophotography it s strongly recommended to do further steps and to finetune the polar alignment either with a laserpointer A or with a polefinder telescope B or with using the Schneiner method C see chapter 2 3 A B C 2 2 Mounting the Telescope onto the TEPP Carefully position the Dobson s base and make sure that the pivot points of the base are above the center a...

Page 4: ... Polar Alignment To get more precise polar aligment you can follow the steps of the Scheiner method A detailed description can be found on the webpage below note for this method you have to start the platform first Scheiner method http www grnbrg org polar_align guidingsim html 2 4 Finding the Target Object Since TEPP is already operating in clock machine mode TEPP is turned on as a first step man...

Page 5: ...ates low input voltage but it doesn t effect the normal operation Fast flashing light indicates a critically low input voltage if you re using your car s 12V battery you should start charging as soon as possible to prevent battery demage 2 12 V DC Power input Connect 12 V DC power here This connector has a positive polarity so connect the positive supply voltage to the center point of the connecto...

Page 6: ...s make sure that the HEMISPHERE swith is in the right positon There is no way to change the hemisphere slection during an active tracking To do that you have to restart the controller after hemisphere is selected 2 5 2 Powering up To power up the controller turn off the main switch then connect a 12 V DC power source to the connector 12V IN Always use this dedicated power input connector for the 1...

Page 7: ...ring charging Do not use and do not attempt to charge it if the house is broken Do not use in rain the remote controller is not waterproof The functions of each button is shown below The remote controller has a key lock function to prevent unwanted movements To unlock the remote controller press and hold the ENABLE button Once it s enabled the built in LED indicator shows the state of the charge o...

Page 8: ...sition reached tracking has started One short beep in every seconds Limit switch is reached countdown is in progress Countinous short beeps Error Swith off the controller then restart it 3 Changing the Operation Latitude TEPP systems works between 33 62 latitudes on both hemispheres You get the platform preset according to your location If you stay within 2 degrees around the default latitude it s...

Page 9: ...e the drawing below Each hole represents 1 degree latitude from 35 to 60 4 Transport In order to keep the hard metal surfaces unharmed during a transportation it s strongly recommended to separate the bearings from the stainless steel arcs using cardboard pieces Use cable ties to fix these cardboard pieces and to prevent the movement of the upper DEC part ...

Page 10: ...t s too dry apply some grease You can move the DEC part into the upper position with the remote controller This way you will have enough space to get the grease anywhere ont he axis After doing so switch off then on again the electronics to get the DEC into the center position Check the RA belt tightness once in every 6 months If it s too loose you can tighten it by adjusting the gear wheel positi...

Page 11: ...ather Blurry or striped pictures Check the balance and proper fixing of Alt AZ axles Try to set another integration time for guiding Too windy weather Guider shows big deviation for the RA DEC perpendiculars Try to take photos in another time when the target is closer to the meridian One of the 12V outputs is not working Overloaded output remove the load and wait 10 15 minutes to recover the inter...

Page 12: ...ature range 20 40 C Tracking time 110 minutes Power supply voltage 12 VDC min 11V max 16V Current consumption without accessories maximum 1 2 1 4 A Autoguider speed 1X 1 2X 1 4X Manual speed remote controller 1X 1 2X 1 4X Wireless remote controller range 3 5 meter Wireless remote controller frequency 2 4 GHz Note The above specifications are subject to change without advance notice ...

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