Milnor MilTouch-EX 48040H7K Guía Del Operario página 56

Chapter 3. Troubleshooting
MilTouch-EX
3.3.2.
Applicable Models—68036M5K, 48040M7K
The sequence begins when the cylinder is at drain speed and the next operation is an extract.
1. The inverter determines the amount of imbalance within the cylinder at drain speed.
2. The control software evaluates whether the next machine operation is a final extract.
Throughout any extract step, the control software monitors the excursion switch and recycles the
extract sequence if the excursion switch trips.
If the Next Operation is an Intermediate Extract
3.3.2.1.
1. If the next operation is an intermediate extract, the OoB detection system compares the
amount of imbalance to a table of threshold values.
• If the imbalance is greater than the smallest threshold value, the OoB detection system
limits the speed for the extract step to a speed determined by the amount of imbalance.
• If the imbalance is less than the lowestthreshold value, the control software completes the
extract step at the programmed speed.
2. The OoB detection process stops until the cylinder accelerates to drain speed again.
If the Next Operation is a Final Extract
3.3.2.2.
1. The control software evaluates whether the amount of imbalance is below the threshold value
for the machine.
2. If the imbalance is below the threshold value, the control software advances to the final
extract step.
• If the imbalance is larger than the threshold, the control software recycles the extract
sequence up to three times.
• If the imbalance remains above the threshold value after the third recycle attempt, the
control software limits the cylinder speed as determined by the amount of imbalance.
3. If the imbalance is less than the lowest threshold value, the control software completes the
extract step at the programmed speed.
4. The control software monitors the excursion switch.
If the Excursion Switch Trips
3.3.2.2.
1.
accelerating the cylinder to the programmed extract speed, the following events occur:
1. The controller software recycles the extract sequence.
2. The OoB detection system recalculates the amount of imbalance.
• If the new imbalance is more than the maximum amount that can be balanced after a
maximum of three extract sequence recycles, the controller software completes the
extract step at a speed determined by the amount of imbalance. The control software
monitors the excursion switch and repeats the recycle process if the switch trips.
• If the new imbalance is less than the lowest threshold value, the control software
completes the extract at the programmed speed.
If the Excursion Switch Does not Trip
3.3.2.2.
2.
acceleration to the programmed speed, the extract step continues to completion at the
programmed speed.
PELLERIN MILNOR CORPORATION
®
Models Other than 72046M5K
—If the excursion switch trips while the control software is
—If the excursion switch does not trip during
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