Elevance® Chair Position Programming Theory of Operation
This programming function allows a user to program and store up to four specified seat and back position configurations for a quick single button recall.
The system
Two tilt sensors (accelerometers) constantly monitor positions, relative to the floor, of the lift arm (base) and the back. This data is transmitted to the PC board where the software stores it, enabling a user specified position to be recalled using a single programmed, position button.
Recalling a programmed position
When a programmed position is recalled, the PC board software activates all the required functions at the same time, to return the base and back to the same coordinates the software has stored for that programmed button.
Relevant voltage readings:
•115 V~ (VAC) at J3, Power inlet. Read pins 1 & 3
•115 V~ (VAC) at J15, Pump Motor. Read pins 1 & 2
•115 V~ (VAC) at J1 Hydraulic Valve Bank
▪Read pins 7 + 1, 2, or 3 for Back Up
▪Read pins 8 + 1, 2, or 3 for Back Down
▪Read pins 9 + 1, 2, or 3 for Base Up
▪Read pins 6 + 1, 2, or 3 for Base Down
Look at LEDs for the J9 - 12, Control (Comm) Communication Ports to verify power and activity
LED ON = device connection is seen by software
LED BLINKING = comm port is receiving a command from a user
The chair can be stopped any time during a programmed positioning sequence by pressing any other button on the control device.
To program a button to a specified position
1.Use the arrow buttons to move the chair to desired position.
2.Press and hold any position button two seconds to set it for that position. The chair beeps three times to indicate the button is programmed.
To recall a programmed position
1.Press the desired position button 1, 2 3 or 4. The chair will move to the programmed coordinates stored for that button.