1.No Display Condition

a.Check position of “EMERGENCY STOP” (E-Stop) to verify it is in operating position (pull or twist for operating position).

b.Check fuse one or two and if either are blown, replace.

c.Take voltage reading across the microprocessor (J7) 9-pin connector pins 1 and 2. If no voltage is present at pins 1 and 2, double check the secondary (24 VAC) side of transformer at the blower motor contactor number 13 to ground if no voltage is present check primary voltage to transformer.

d.Check voltage across fuses 1 and 2 to ground. If voltage is present, check “EMERGENCY STOP” (E-Stop) “red” and “black” wire to ground. If voltage is present, check voltage across 95 and 96 to ground of the drive motor overload. If voltage is present, check 95 and 96 to ground of the blower motor overload. If voltage is present and transformer terminations are good, then the transformer is faulty. Refer to the schematic supplied with the dryer to assist in the troubleshooting of the dryer.

NOTE: In this next section ALL voltage checks must be done in the operating mode with the appropriate microprocessor dot on. Also appropriate L.E.D. (light emitting diode) output light on.

NOTE: In this next section when checking for voltage you are looking for 25AC volts unless otherwise specified.

2.Drive motor reverses but DOES NOT forward, blower motor runs

a.If computer dot (first dot on the left) does not come on replace the computer.

b.Check for voltage across the coil of the forward contactor located in the reversing panel box. The contactor according to your diagram is marked CR2. The coil markings A1 and A2.

If voltage is present, replace reversing contactor.

If voltage is not present, there is a faulty wire or termination between BS2 and contactor coil (CR2).

c.If there is voltage across the two AS2 terminals and no voltage across the two BS2 terminals, replace the arc suppressor (A.S.) board.

If there is no voltage across the two AS2 terminals on the arc suppressor (A.S.) board, the problem is a faulty wire or termination between the AS2 board and the J7 9-pin computer connector no. 8 or faulty computer.

3.Drive motor works in forward mode but DOES NOT reverse, blower motor runs

a.If computer dot (second one from left) does not come on, check program to see if set for reverse.

b.If set for reverse, replace computer.

c.Check for voltage across the coil of the reversing contactor located in the rear panel box. The contactor according to your diagram is CR3, also the markings on the coil are A1 and A2.

47

Page 51
Image 51
ADC ML-96 service manual No Display Condition, Drive motor reverses but does not forward, blower motor runs

ML-96 specifications

The ADC ML-122 and ML-96 are two advanced communication devices designed for efficient data collection and transmission in various applications. Both models are renowned for their robust performance and user-friendly features, which cater to a diverse range of industries.

The ADC ML-122 is a high-performance data logger that excels in multi-channel monitoring. It supports various input types, making it versatile for applications such as environmental monitoring, industrial process control, and research. One of its standout features is its ability to accommodate both analog and digital signals, allowing users to gather a wealth of data from different sources. The device supports a wide temperature range, ensuring reliability in diverse environmental conditions. Moreover, its built-in memory can store extensive data logs, which are easily downloadable for analysis.

On the other hand, the ADC ML-96 is designed primarily for telecommunication and network monitoring. It features advanced signal processing technologies that allow it to analyze and troubleshoot communication lines efficiently. The device is equipped with real-time monitoring capabilities, enabling users to detect issues as they arise, which is crucial in maintaining network integrity. The ML-96's compact design makes it an ideal choice for installation in tight spaces without sacrificing performance.

Both models are built with cutting-edge technologies that enhance their functionality. They integrate wireless communication protocols, such as Wi-Fi and Bluetooth, enabling seamless connectivity to cloud services for data backup and remote access. This feature empowers users to monitor conditions from anywhere, ensuring that critical information is always at hand.

The user interface for both the ML-122 and ML-96 is designed for ease of use. Equipped with a clear display and intuitive controls, users can navigate through settings and view data with minimal training. The devices also offer customizable alerts that notify users of any anomalies, adding an additional layer of security and responsiveness.

In terms of power management, both models utilize energy-efficient components, allowing for extended battery life. This is particularly advantageous in remote sensing applications where power sources may be limited. Furthermore, the ability to integrate with other systems makes these models adaptable to various operational needs.

In conclusion, the ADC ML-122 and ML-96 stand out in their respective markets due to their innovative features, reliable technologies, and user-friendly designs. With their flexibility and performance, they continue to set the standard for data logging and communication monitoring technologies.