Operation

Balance Detection

The washer-extractor may be equipped with either of two balance detection systems: (1) a balance sensor detection system or (2) an inverter drive balance detection system.

Balance Sensor Detection

If the washer-extractor is equipped with the balance sensor detection system, the optical sensor installed on a bracket on a shock absorber signals the computer to slow the washer-extractor when an out-of-balance load occurs during extract.

If the balance sensor is tripped, the out-of-balance LED indicator located in the upper left corner of the first digit of the display will light and will remain lighted until the end of the extract step. This indicator tells the operator that an out-of-balance condition existed during an extract step. The washer-extractor will attempt to balance three times during an extract step.

If on the third attempt the out-of-balance condition continues, the washer-extractor will advance to the next step. (If the next step is another spin step, it will be skipped also.)

Inverter Drive Balance Detection

If the washer-extractor is equipped with the inverter drive balance detection system, balance is detected by the inverter drive during a drain step as opposed to an extract step. The WE-6 computer will make up to seven attempts to balance the load during a drain step. During the final balance attempt, the out-of-balance LED indicator located in the upper left corner of the first digit of the display will light. The indicator will remain lighted until the drain step is complete.

If on the seventh attempt the load is not balanced, the washer-extractor will continue to the next step in the cycle following the drain step that is not a spin step.

Therefore, if one spin step or two or more consecutive spin steps follow, all will be skipped if seven attempts to balance the load in the drain step fail. High speed steps include medium, H1, H2, and H3 spin steps.

NOTE: The computer cannot advance through a drain step, nor will the computer allow starting a cycle in a spin step.

NOTE: A drain step must be programmed prior to a high speed step to allow for inverter drive balance detection. Otherwise, spin steps will be skipped by the computer.

If the washer-extractor is equipped with the inverter drive balance detection system, a special balance switch serves to remove power to the machine. This means that if the washer-extractor balance “passes” the inverter drive balance detection system at the drain step but the balance switch detects an out-of-balance load condition at the extract step, power will be removed from the washer-extractor.

At this point, the LED display goes blank on the WE-6 computer, and the washer-extractor coasts to a stop. Such a condition indicates a serious problem. Contact a service technician before attempting to restore power to the washer-extractor.

Temperature Display

The temperature display can be prompted to display in Fahrenheit or Centigrade. Refer to Prompting the WE-6 in the Programming section of this manual.

To display temperature, press the Display Temp key. The display will read “F” or “C” and the temperature as long as the key is pressed. The computer will update the display automatically.

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