32
How to Adjust the Dead Bands
A deadband is an area of regulaon range where no acon occurs. The purpose
is to prevent involuntary power feeding to the coils. If no deadband is dened,
the electronics is feeding random signals to various coils, and if the deadband is
set too narrow, even a small unintenonal movement of the lever can cause a
harmful addional reacon.
As an example: A small side movement of the joysck can cause the rotator to turn
when the aempt was to rise or lover the main boom of a forest crane.
Seng the deadbands will always recall, by the program selected current values.
Because the current values starts from low, at all lever direcons of the joysck ( even
the thumb roll ) shall all hydraulic movements start smooth from a low level, without
any preset speed. The current starng from low level will lead to a relavely long lever
movement for gaining a required current for start in some funcons. To adjust these
funcon to start smooth, immediately aer the deadband, please read the manual at
page 29.
The procedure to set the deadbands / returning the factory
sengs:
(the hydraulic pressure can be on because the joysck will not give any out
signal) Note: At the referred switches A and B, A is marked with a cavity.
Switch off the power from the joystick
Press and hold A and B switches.
Turn on the power to the joystick, still holding A and B pressed until
the red light come on after 5 seconds. Then let off the switches.
To set the deadbands at the joystick move the lever apr. 10 mm in
every direction, also the roller apr. 2 mm forward and back.
Press A switch to register the deadband values (just press, don’t hold)
The red light will flash to indicate the registered values.
Move the lever to the maximum position in all directions, also the
roller.
Press A switch to register the maximum lever values.
The red light will now be on for 1 second to indicate the finished
procedure.
The joystick is now ready for use.
Note: The length of the deadbands can be set longer than 10 mm if wanted
but not shorter to avoid earlier menoned unintenonal movements.