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Operating and Maintenance Manual
Scientek Washer Model SW-6000
Revision-3, Sept. 2007
3-1
Section 3
Principles of Operation
3.1 GENERAL
The Scientek™ SW6000 Series Cart & Utensil Washer / Cage and Rack Washer is equipped
with an Allen Bradley Micro Logic 1500 Series programmable controller which operates all
pre-programmed cycles. The cycle description and operation are described herein on the
main control panel (soiled side, if two door pass through unit). The display is furnished with
an Allen Bradley Panel View 600 color touch screen operator interface. The auxiliary control
on clean side (if two-door pass through unit), is furnished with indicator cycle status lights
and Start/Stop and Exhaust control switches.
3.2 CYCLE DESCRIPTION
3.2.1 Initial Start-Up
1.
With the POWER switch in the OFF position, the power to the front (soiled end) control
panel and,
if double door unit
, the rear (clean end) control panel of the unit is
disconnected and the drain line valve is in the open position.
2.
When the POWER switch is turned to the ON position, the front (soiled end) control panel
is energized and,
if double door unit,
the rear (clean end) control panel is also energized.
Door switch(s) on the front (soiled end) and,
if double door unit
, rear (clean end) of the
unit are energized. The START, STOP and other switches are also energized.
3.
If a door is open, then the
DOOR OPEN
indicator or light (red) will illuminate. If a
double door unit
, then opening either door will illuminate indicator and light on clean
end of the machine.
4.
If the STOP button (red two-stage) is in the locked position, then the
STOP
indicator will
display. If a
double door unit, stop indicator light is installed
, on clean end.
5.
The
CYCLE COMPLETE
indicator light (green) will illuminate for a
double door unit
,
on clean end and main control will display message indicator.
6.
The drain line valve will energize and close the drain line.
7.
When the START button (green momentary) is pressed, the controller initiates the wash
cycle.
3.2.1 Prewash
The Prewash step is designed to remove all of the loose soil from the items being washed.
The steps occurring during this step are as follows:
•
The
PREWASH
indicator light (amber) on clean end and message display on control
panel is illuminated.
Scientek Technology Corporation
Tel: (604) 940-8084
7943A Progress Way, Delta, BC V4G 1A3
Fax: (604) 940-8085