Pellerin Milnor Corporation

BICWUT01 (Published) Book specs- Dates: 20050118 / 20050118 / 20050118 Lang: ENG01 Applic: CWU

Troubleshooting Basket Speed Errors on Single-motor Washer- extractors

This document describes the proper procedure for troubleshooting errors related to basket motor speed on machines equipped with a single motor, an inverter, and a digital-to-analog (D-to-A) board.

1.As the basket rotates, a photoeye sees each spoke of the main drive pulley. The photoeye sends a pulse representing each pulley spoke to an input/output board (I/O #1).

2.I/O #1 determines the time between pulses and communicates this to the machine processor board.

3.The processor board calculate the RPM and compares this value to the digital value corresponding to the programmed basket speed. If the speed is incorrect, the processor board signals the digital-to-analog (D-to-A) board to slightly increase or decrease the basket speed.

4.The D-to-A board converts the digital signal from the processor board to an analog voltage of 0 to 10 volts and sends it to the inverter. The speed at which the inverter drives the motor is directly related to the voltage output of the D-to-A board.

5.The inverter interprets the voltage from the D-to-A board and adjusts the voltage and frequency of the motor supply to drive the motor at a different speed.

6.The motor speed changes, causing the spokes on the main pulley to pass the photoeye at a different rate, and the speed control circuit is complete.

The most common indicator of a problem somewhere in the speed control circuit is that the basket does not turn at the desired speed, or does not turn at all. The chart in Figure 1 describes the overview of the troubleshooting process.

WARNING 1 : Electrocution and Electrical Burn Hazards—Hazardous voltages can cause sever injury or death.

• Whenever possible, lock all power sources feeding the inverter in the “OFF” position.

•The status indicator LEDs and the inverter display will be extinguished when the DC voltage inside the inverter is below 50VDC. Wait at least one additional minute for voltages to further dissipate.

BICWUT01 specifications

Milnor BICWUT01 is a state-of-the-art washing machine designed specifically for commercial and industrial applications. With its innovative engineering, this machine excels in delivering superior cleaning performance while ensuring energy and water efficiency. One of the standout features of the BICWUT01 is its advanced control system, which incorporates user-friendly interfaces and programmable settings that allow operators to customize wash cycles based on the specific requirements of different fabric types. This flexibility not only enhances cleaning effectiveness but also reduces wear and tear on garments.

The BICWUT01 is equipped with a high-speed extraction feature, which is crucial for minimizing drying times and increasing overall productivity in laundries. This capability allows the machine to extract more water from the load, significantly reducing energy consumption during the drying phase. Furthermore, the machine’s heavy-duty construction ensures reliability and longevity, making it an excellent investment for any business that relies on laundry services.

In terms of technology, the Milnor BICWUT01 utilizes a variable frequency drive (VFD) that optimizes motor performance and enhances energy efficiency. This technology allows for smooth acceleration and deceleration of the drum, which not only protects the fabrics but also reduces mechanical wear. Additionally, the machine's integrated diagnostics system provides real-time monitoring and troubleshooting, helping to minimize downtime and maintenance costs.

The washing machine features a large capacity drum, enabling users to process larger loads in a single cycle. This high-capacity design not only increases efficiency but also ensures that the machine can handle the rigors of industrial use. Moreover, the BICWUT01 incorporates eco-friendly technologies, such as low-water and chemical usage, aligning with sustainability goals and reducing operating costs.

Safety is prioritized with features like automatic door locks during operation and emergency stop functions, ensuring safe usage in high-traffic environments. The ergonomic design and easy access to components for maintenance further contribute to its user-friendly experience.

Overall, the Milnor BICWUT01 stands out as a powerful, efficient, and reliable solution for commercial laundry operations. Its combination of advanced features, trustworthy technology, and emphasis on safety and sustainability makes it an exceptional choice for businesses looking to enhance their laundry capabilities.