4.4. Out-Of-Balance Detection And Balancing For Washer-Extractors; Miltouch ® Models - Milnor MilTouch MWF27Z8 Serie Guía Del Operario

Chapter 4. Troubleshooting
O. Connectors M1A, M1B, and M1C: 0 volts and 12 volts
P. Connector M10: analog connections
Q. Connector M9: 0-volt reference for inputs
R. Lights: 30 outputs, O-0 through O-29
S. Lights: 24 inputs, IN-0 through IN-23
T. Integrated circuit RA17: JTAG resistor array (do not remove)
U. Component P1: Water level transceiver
V. Connector M6: inputs
BICLUF02 (Published) Book specs- Dates: 20170804 / 20170804 / 20170804 Lang: ENG01 Applic: CLJ

4.4. Out-of-balance Detection and Balancing for Washer-extractors

This document describes how the out-of-balance (OoB) detection feature works within the
MilTouch ® and MilTouch-EX
wash cycle.
• For information on MilTouch models, see
• For information on most MilTouch-EX models, see
• For information specific to the MilTouch-EX Model 72046M5K, see
®
MilTouch Models
4.4.1.
Applicable Models—30022V8Z, 36021V7Z, 36026V7Z, 42026V6Z, 42030V6Z, 30022VZZ
The sequence begins when the cylinder is at drain speed and the next operation is an extract. The
inverter determines the amount of imbalance within the cylinder at drain speed.
Throughout any extract step, the control software monitors the vibration switch and recycles the
extract sequence if the excursion switch trips.
1. The OoB detection system compares the amount of imbalance to a table of threshold values.
2. If the imbalance is greater than the lowest threshold value, the OoB detection system limits
the speed for the extract step to a speed corresponding to 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 OoB detection process stops until the cylinder accelerates to drain speed again.
If the vibration switch trips while the control software is 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 amount of imbalance is greater than the lowest threshold value, the controller
software completes the extract step at a speed determined by the amount of imbalance.
The control software monitors the vibration switch and repeats the recycle process if the
switch trips.
• If the new amount of imbalance is less than the lowest threshold value, the controller
software completes the extract at the programmed speed.
PELLERIN MILNOR CORPORATION
— End of BICLJT01 —
® control systems to mitigate vibration during any extract step in a
Section 4.4.1.
50
Section 4.4.2.
Section 4.4.3.