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1. Error Message "Warning! DEC. (or R.A.) driver motor over current. Please check
balance."
(1) Check if the mount or OTA is blocked by any obstructions.
(2) Try to operate the mount without an OTA.
(3) Check the power supply. This is a common reason for this message and unexpected slew
behavior or movement. which include:
•
Batteries: Are the batteries fresh? How long have they been used? (frequent slewing and
GOTO will deplete battery power very quickly)
•
AC or DC adapter: Check the plugs to the mount and to the power outlet.
•
Extension cord: Make sure the cord is in good condition. Power drop along the extension
cord has been known to cause this error message. Also check all the plugs and
connections.
(4)
Check the hand controller cord. Unplug it and re-plug into the other HBX port.
2. Error Message "Warning! Can not communicate with DEC motor controller."
(1)
Check the hand controller cord. Unplug it and re-plug into another HBX port.
(2)
Check the power supply, which include:
•
Using the battery? Is the battery fresh? How long it has been used? (frequent slew and
GOTO will deplete battery power very quickly)
•
Using AC or DC adapter? Check the plugs to the mount and to the power outlet.
•
Using extension cord? Make sure the cord is in good condition. Power drop along the
extension cord was known to cause the problem. Also check all the plugs and connections.
3. The object is jumping up and down in the eyepiece or over-slewed, and other
unexpected slew behavior or movement.
(1)
Use most updated firmware.
(2)
Set backlash to 0 in both DEC and RA.
(3)
Check the power supply, which include:
•
Using the battery? Is the battery fresh? How long it has been used? (frequent slew and
GOTO will deplete battery power very quickly)
•
Using AC or DC adapter? Check the plugs to the mount and to the power outlet.
•
Using extension cord? Make sure the cord is in good condition. Power drop along the
extension cord was known to cause the problem. Also check all the plugs and connections.
(4)
System balancing.
4. Star Alignment accuracy; GOTO accuracy
(1) Leveling (very important).
(2) Site information (minutes ahead or behind UT, DST).
(3) System balancing.
(4) Use most updated firmware.
(5) Select right mount type (A/A).
(6) Set backlash to 0 in both DEC and RA.
(7) Check the power supply, which include:
•
Using the battery? Is the battery fresh? How long it has been used? (frequent slew and
GOTO will deplete battery power very quickly)
•
Using AC or DC adapter? Check the plugs to the mount and to the power outlet.
iOptron Corp. | 6E Gill Street | Woburn, MA 01801 USA | (781) 569‐0200 | Toll Free (866) 399‐4587 | www.iOptron.com
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