14.6 Operation with 3-axis Proportional and Switch
Type SIDs (Head Arrays) (Fig 13.5)
These types of SID contain a Forward/Reverse command, and
Left and Right commands, as well as a User Switch(es)*.
Driving is via the Forward/Reverse, Left and Right commands
* Depending on the installation, as well as a normally closed
User Switch, there may be a user switch integrated into the
head array. This switch would connect to the Omni via the fifth
switch pin on the D-type connector.
User switch commands are then used to change drive direction
and to enter the User Menu.
There are 3 ways to program the Omni to provide this
functionality.
14.6.1 Double Click Change
A single User Switch operation toggles the direction, while a
double operation of the User Switch will enter the User Menu or
sequence the other functions.
This method is selected by setting parameter, Fwd/Rev Auto
Toggle to Off.
There is programmability associated with the timing of the
double operations.
Refer to your health care professional or authorized dealer.
14.6.2 Auto Toggle Change
A direction change will occur if a Forward/Reverse command is
operated and released. A further operation of the Forward/
Reverse command will result in drive in the newly selected
direction.
This sequence must be completed within a given time period,
typically 2 seconds. However, the parameter, Fwd/Rev Auto
Toggle Time, can be adjusted to give a different time period.
Refer to your health care professional or authorized dealer.
If the sequence is not completed within the time period, the
selected direction will automatically revert to its previous state.
The User Switch is used to enter the User Menu.
This method is selected by setting parameter, Fwd/Rev Auto
Toggle to On.
Refer to your health care professional or authorized dealer.
247555 Rev. A
14.6.3 Switch Medium Change
A direction change occurs at the instant the User Switch is
operated, provided the parameter Double Click has been set to
0. If the User Switch is released and a Forward/Reverse
command is entered, then drive will commence in the newly
selected direction.
If the User Switch is not released and is held for time period set
by the programmable parameter, Switch Medium, then this is
interpreted as a conventional User Switch operation, i.e. the
User Menu will be entered. There will be no direction toggle in
this instance.
As with the other two methods, if the User Switch is operated
for a period greater than the time set by the programmable
parameter, Switch Long, then the Omni will go to sleep.
14.6.4 Seating Control
Standard control of seating movement is via the Forward/
Reverse command, and Left and Right commands will select a
different seat axis for movement. The direction of movement is
selected in the same way as that for changing drive direction.
Please refer to Section 14.6.
As is often required in head array situations, it is possible to re-
program the Omni to control the seating movement in
alternative ways.
Refer to your health care professional or authorized dealer.
14.6.5 Associated Programming
There are several standard R-Net programing features that
may be useful when using this SID type. These include joystick
throw, joystick orientation and joystick deadband.
Refer to your health care professional or authorized dealer. For
latched operation using this SID type, refer to section Latched
Operation.
It is possible to set up the Omni so that the functions can be
navigated audibly. This can be useful if the user cannot easily
always see the Omni's screen. Refer to section Using the Omni
by Sound in the Advanced Section of this manual.
43
R-Net Control System
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