losmandy gm8, g-11 & az8: encoders installation - astro … · 2017-06-26 · title: microsoft...

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Copyright © 2016-2017, Astro Devices. All rights reserved. 1 Losmandy GM8, G-11 & AZ8: Encoders Installation Please unpack all parts from the encoder kit. Make sure that your kit contains the following parts: Encoder resolution: 311296 steps Current consumption: 25 mA each This instruction booklet shows the installation procedure for one encoder. The installation procedure for the second encoder is identical. Tools required: - Allen key (supplied) - Philips head screw driver (not supplied) Do not subject encoder disks to magnetic fields as it may affect the magnetization of the magnetic multi-pole rings.

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Copyright©2016-2017,AstroDevices.Allrightsreserved. 1

LosmandyGM8,G-11&AZ8:EncodersInstallation

Pleaseunpackallpartsfromtheencoderkit.Makesurethatyourkitcontainsthefollowingparts:

Encoderresolution:311296stepsCurrentconsumption:25mAeachThisinstructionbookletshowstheinstallationprocedureforoneencoder.Theinstallationprocedureforthesecondencoderisidentical.Toolsrequired:

- Allenkey(supplied)- Philipsheadscrewdriver(notsupplied)

Donotsubjectencoderdiskstomagneticfieldsasitmayaffectthemagnetizationofthemagneticmulti-polerings.

Copyright©2016-2017,AstroDevices.Allrightsreserved.2

1. Startfromremovingtheclutchadjustmentknobandallwashersandthrustbearingsfromtheshaft:

2. Placethefollowingpartsintheordershown:

3. Putthethrustbearingontheshaft:

Copyright©2016-2017,AstroDevices.Allrightsreserved. 3

4. Thenputtwowashers:

5. Thenslidetheencoderdiskontotheshaftwiththemagneticringfacingthewashers:

Youcanremovesixpinswhileyouthreadingtheencoderdisk.

Copyright©2016-2017,AstroDevices.Allrightsreserved.4

Pleasemakesurethatthediskisnotapplyingtoomuchforceandthatyoucanstillrotatetheshaft.

6. Installthesensor

Copyright©2016-2017,AstroDevices.Allrightsreserved. 5

7. Tightenthreesetscrewslocatedontheencoderdiskat120ºapart

Makesurethatyoudonotover-tightenthesetscrewsasthiswillleadtoadeformationofthediskresultinginreducedaccuracy.

Putsixpinsbackintotheholesintheencoderdiskifyouremovedthembefore.

8. Finishwithputtingtherestofthepartsbackontotheshaft:

Copyright©2016-2017,AstroDevices.Allrightsreserved.6

Copyright©2016-2017,AstroDevices.Allrightsreserved. 7

9. Tightentheclutch

10. Repeatthesameinstallationprocedureforthesecondencoder.11. InserttheencodercableandconnectittotheDSCunit.12. Done.