degree. The swing phase extension and flexion resistance experienced by the user are auto-
adaptive.
The flexed and partially loaded knee will also disable the stance phase on slopes and ramps to
allow for greater knee flexion and more ground clearance in the swing phase.
9 Additional operating states (modes)
9.1 Empty battery mode
Beeps and vibration signals are emitted if the available battery charge level is 5% (see Page 87).
During this time, damping settings are set to their safety mode values. The prosthesis is then
switched off. You can switch back to basic mode (mode 1) from empty battery mode by charging
the product.
9.2 Mode for charging the prosthesis
The product is non-functional during charging.
The product is set to the flexion resistance of safety mode. This may be low or high depending on
the setting configured by the prosthetist.
9.3 Safety mode
The product automatically switches to safety mode if a critical system fault occurs (e.g. failure of a
sensor signal). Safety mode remains in effect until the error has been rectified.
The switch to safety mode is indicated by beeps and vibration signals immediately prior to switch
ing (see Page 87).
Safety mode can be disabled by connecting and disconnecting the battery charger. If the product
switches into safety mode again, this means a permanent error exists. The product must be
inspected by an authorised Ottobock Service Centre.
Depending on the type and severity of the error, different remaining functionality is offered in
safety mode which enables limited walking by the user.
The following remaining functionality is available:
•
Continuous stance phase flexion resistance is set, with the ability to initiate the swing phase.
•
The swing phase control and stance phase extension resistance may be available or not
depending on the type of error.
•
Safety mode flexion resistance is configured. This may be low or high depending on the set
ting configured by the prosthetist.
The following functions are deactivated in safety mode:
•
OPG function
•
Stairs and obstacles function
•
Stance function
•
Sitting function
9.4 Overheating mode
INFORMATION
When mute mode (silent mode) is activated, no beep and vibration signals are generated.
When the hydraulic unit overheats due to uninterrupted, increased activity (e.g. extended walking
downhill), damping is increased along with the rising temperature in order to counteract the over
heating. When the hydraulic unit cools down, the product switches back to the damping settings
that existed before the overheating mode.
Overheating mode is not activated in the MyModes.
Overheating mode is indicated by a long vibration every 5 seconds.
82 | Ottobock