B&C Technologies EL-6 Windows - Manual (Page 24)

4.7 Working with Steps
The steps are the building blocks used to create a wash cycle. Each cycle can contain up to 100 steps
but remember that there are only 400 total steps allowed in total. The cycles window is shown in
figure 4.1 on page 15. Everything that happens during the wash cycle is controlled discreetly by
a step – one function at a time is performed (Fill ⇒ Chemical Dose ⇒ Top off ⇒ Agitate). Here’s
what is happening in the example cycle, Prewash 1, a bath (Drains and Spins are handled using
different cycles).
• Step 1:
The cold water output is energized, with an end step condition of 41cm, a 5 minute watchdog
timer, and a speed of 36 RPM using motor mode 1.
Step 1 is the fill step for this bath. The cold water valve will remain energized until the
programmed water level is reached. Alternatively, if the watchdog time expires before level
is reached, the EL6 will display a WTD TIME EXP alarm, indicating that the machine did
not reach level. During the fill, the wash cylinder will rotate at 36 RPM using motor mode 1
(16 seconds forward, 4 second pause, 16 seconds reverse). As soon as water level is reached,
Step 1 is over, and Step 2 begins.
• Step 2:
The chemical 1 output is energized, with an end step condition of 1 minute, and a speed of
36 RPM using motor mode 1.
Step 2 is the chemical dosing step. The chemical signal selected (Chemical 1) remains on for
1 minute. During this time, the wash cylinder will rotate at 36 RPM using motor mode 1 (16
seconds forward, 4 second pause, 16 seconds reverse). As soon as the time elapses, Step 2 is
over, and Step 3 begins.
• Step 3:
The cold water output is energized, with an end step condition of 41cm, a 4 minute watchdog
timer, and a speed of 36 RPM using motor mode 1.
Step 3 is the top off step. The cold water valve will remain energized until the programmed
water level is reached. Alternatively, if the watchdog time expires before level is reached, the
EL6 will display a WTD TIME EXP alarm, indicating that the machine did not reach level.
During the fill, the wash cylinder will rotate at 36 RPM using motor mode 1 (16 seconds
forward, 4 second pause, 16 seconds reverse). Typically, this step is skipped as the water level
doesn’t typically drop enough to trigger the fill valve. If the goods are unusually absorbent,
this step can top off the water level. As soon as water level is reached, Step 3 is over, and
Step 4 begins.
• Step 4:
No outputs are energized, with an end step condition of 4 minutes, and a speed of 36 RPM
using motor mode 1.
Step 4 is the agitation step. No outputs are turned on, so the cylinder rotates at 36 RPM using
motor mode 1 (16 seconds forward, 4 second pause, 16 seconds reverse) for the duration of
the step. Once step 4 is over, the EL6 moves to the next programmed cycle – typically a drain
(Spin 9).
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