Operator`s manual

Roboscan Pro 1220 - operator’s manual 27

Adjusting the Pan/Tilt Stops

Re-adjusting the mechanical stop on the Roboscan Pro 1220-mirror adaptor is required if the pan or

tilt motor intermittently loses steps or leaves the mirror incorrectly positioned after a 'reset' is per-

formed. This error can occur when the recoil of the mechanical reset bounces the mirror and bracket

a whole pan or tilt motor step. These adjustments require that your are familiar with the service

sequences provided by the control module on the front end of the Pro 1220. If not then please read

section 5 - 'THE PRO 1220 CONTROL MODULE'.

First switch on the Pro 1220, wait until the reset has finished and then select the service sequence

named 'SP 6' for Pan/Tilt adjustments.

PAN-MOTOR ADJUSTMENT

Select 'St 2' (step 2) so that the screw (A1) in the above figure is positioned at the upper

mechanical-stop (A2).

Release the lock-nut on the adjusting screw (A1).

Turn the screw (A1) clockwise about 1/2 - 1 turn, thereby increasing the distance between the

head of the screw and the mechanical Stop (A2).

Tighten the lock-nut on screw (A1).