OEM Controls AroTrak Optimizer Adjustment Procedure User Manual

ARO Trak

CONTROL SYSTEM

Optimizer Adjustment Procedure

10 Controls Drive
PO Box 894
Shelton, CT 06484
Phone: [phone]
Fax: [phone]

AROTrak System

Adjustments

Optimizer (Hand Held User Interface) OPT-3

The Optimizer is a hand held interface with a keyboard and an
alphanumeric display. It is used as an adjustment and diagnostic tool to
display various system values and to make adjustments. When the
Optimizer is first plugged in, its display will be similar to this:

Start Display

LEFT TRACK RIGHT
45% F 52% F

The Start Display shows the actual outputs to the machine’s tracks. In this
example, the SuperFLEX is outputting 45 percent of the maximum current
to the EDC (Electric Displacement Control) in the forward direction of the
left track, and 52% to the EDC of the right track. The F will change to an R
when an output is driving in the reverse direction.

Optimizer “3 Key” Operation

For ease of use, only three of the Optimizers keys are used to make
adjustments and access all of the data. The <+> plus and <-> minus keys
are used to step or scroll through the various data items. Pressing the
<ENTER> key while displaying Threshold, Maximum Out, Ramp Up or Low
Range will allow these parameters to be adjusted.

When any adjustment is allowed, the data on the display’s bottom line will
flash. The <+> plus and <-> minus keys are then used to increase or
decrease the values. The SuperFLEX has built in limits to certain
adjustments. For example, the Threshold cannot be set greater than 80%,
but the Max Out can be set to 100%. The attached AROTrak System
Calibration Diagram ( see drawing A090-6788-00 ) shows all of the
possible data items, functions and how to access them by stepping or

scrolling. Whenever a data variable is flashing, it may be adjusted
(incremented or decremented). To permanently save the new data, press
the <ENTER> key until the display stops flashing.

If the Optimizer is disconnected and re-connected, the system will return to
the first display screen. If any adjustments were being made when the
optimizer is unplugged (the display is flashing), the changes will be lost.

Threshold Adjustment

L THRESHOLD R
F: 15% F: 15%

Threshold sets the minimum amount of output that is applied to the
machine’s electrohydraulic valve when the Joystick is just moved in the
start of its active region. The Threshold should be set s the machine just
starts to move when the Joystick lever is in the “On” position. For
convenience, both the Left and Right Thresholds can be adjusted up and
down together (both will flash). Each individual Threshold can be adjusted
for fine-tuning or balancing.

There are separate adjustments for the Forward and the Reverse
directions.

Max Out Adjustment

L MAX OUT R
F: 85% F: 85%

Max output sets the maximum amount of output that is applied to the
machine’s EDC when the Joystick is moved fully into its active region. Set
the Max slightly back, move the joystick off the maximum deflection
position and pulse the Minus key until the track starts to slow down, then
pulse back up a few counts and enter data. Set the Max Out so that the
machine is just at its maximum speed. For convenience, both the Left and
Right Max Outputs can be adjusted up and down together (both will flash).
Each individual Max Out can be adjusted for fine-tuning or balancing.

There are separate adjustments for the Forward and Reverse directions.

Ramp up Adjustment

This sets the amount of time it takes for the SuperFLEX outputs to increase
or “Ramp Up” whenever the Joystick command is rapidly increased.

Low Range Adjustment

This sets the percentage of maximum output that is available when the
optional Dual Range control is set to the Low Range position.