SPACECAM
SYSTEMS, INC.
MAXIMUS 7 OPERATOR’S MANUAL
August 17, 2016
3.2.14 Disengage (freeze).
Press and hold WHEEL SCALING to temporarily disengage (freeze) the wheels or the Pan-Bar to
move it to desired position without changing the camera orientation.
Also you can press and hold KEY2 or KEY4 if connected to the ANA
(LOG)
connector.
3.2.15 Gimbal drift.
To cancel gimbal drift release all controls, disable the servos (gimbal) and make sure the gimbal is
motionless. Press the NULL and then the ENT keys and wait about eight seconds. The platform
gyro drift will be canceled. The console screen will show that the task is active. Best to do this
procedure when the LOS gyro is warm. (About 10 minutes powered on time).
Sometimes after a very violent move (oscillation, vibration) the gyro is overwhelmed, falls out of
range and it is impossible to cancel drift for minutes. Do not try to cancel drift (this is not drift).
Restart the system. Power down, wait a few seconds to make sure that the gyro forgets everything
and power up.
.
If the environment does not allow the gimbal to be motionless (as waves move a boat) then do not
press NULL !!! The gyro offsets can be set manually using the Maintenance program
)
. Not
recommended and very cumbersome procedure. The three gyro offsets (x, y, z) are under the
General Parameters tab. First set all three to zero and see the result. If not acceptable then start
changing them one by one, numbers most likely are under ±5.0e-3 (±0.005).
3.2.16 Joysticks drift.
Release all controls. Press (SHIFT)NULL. The joysticks current position will be fixed as 0.0
position. Check the results and repeat if needed.
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