Manual_500 ECO_SN0001-following_0520
500 ECO
www.ufsk-osys.com
User and Service Manual
Page 28 of 50
6.8. Reset function
The Reset key allows you to return the chair electronically into the factory-defined original patient entry and exit
position (the „sitting position“) .
During this automatic movement, all drives will move into their pre-programmed initialization positions.
The Reset function serves both for restarting the chair in case of a malfunction and for maintenance of the
electronic system!
During all adjusting processes, the chair‘s control system continuously monitors the positions of the individual
drives. To make this monitoring possible, the control system initially needs to know drives‘ current starting
positions. In the event the control system loses a motor‘s position during operation (caused e.g. by a voltage
interruption during a motor‘s movement or by the replacement of a motor), it will be necessary to re-initialize the
control system.
Important Information
Resets conducted at regular intervals – we recommend 1-2 resets per week – will help to virtually rule out
malfunctions of the electronic system.
The following situations will necessitate an initialization as per Section „6.8.2 Initialization in the event of a
malfunction“
in case of a malfunction:
• It is no longer possible to execute the individual adjusting functions at full speed, but only at half or moderate
speed (”creep speed of the drives“) or the green AUTO LED lights steadily after a memory position was
reached.
• the automatic movements are blocked
• the memorization function is blocked
6.8.1 Routine reset for maintenance of the electronic system
6.8.1.1 Manual reset
It is possible to initialize the control system manually by keeping the Reset key permanently pushed until the green
operator indicating LED of the manual keypad flashes twice in quick succession. The green operator indicating
LED will light up steadily during the entire initialization movement.
6.8.1.2 Automatic reset
It is also possible to retrieve the chair’s desired initialization in the form of an automatic movement. To start the
initialization movement, push the Auto key (1 second), followed by pushing of the Reset key. During the initialization
movement, the green AUTO LED will flash. Completion of the automatic reset is indicated by double flash of the
green operator indicating LED.
6.8.2 Initialization in the event of a malfunction
Failure of the chair to respond to the customary entries (blocked key commands) or stopping of the chair failure
to execute the adjusting functions at full power (creep speed of the drives) may indicate the occurrence of an
electronic control system error (los of motor position during adjusting) which can be eliminated by an initialization
movement. A malfunction caused in this manner will be indicated by the green flashing of the AUTO LED and can
be easily eliminated by the keystroke sequence of an automatic reset as described in
reset“. Completion of the initialization movement is indicated by double flash of the green operator indicating LED.
