Resolving FANUC Pendant Black Screen & System Entry Problems

FANUC robots have a wide range of applications, covering various industries and fields, including but not limited to automotive manufacturing, electronics manufacturing, food processing, medical industry, logistics industry, etc.

However, the functions of the FANUC robot teaching pendant (hereinafter referred to as TP) include:

- Moving the robot

- Writing robot programs

- Test running programs

- Production operation

- Viewing robot status (1/0 settings, position information, etc.)

- Manual operation

The FANUC robot teaching device, through its intuitive operation interface and rich functions, has achieved various functions such as power-on and power-off operation of the robot, program editing and running, and manual operation, thereby supporting the extensive application of industrial automation and intelligent manufacturing.

Common FANUC robot teaching device maintenance models at Subei Robotics include:

- FANUC robot teaching pendant A05B-2518-C202#ESW maintenance

- Frank industrial robot teaching box A05B-2518-C370#ESW maintenance

- Fanuc robotic arm handheld programmer A05B-2518-C212#EMH maintenance, etc.

So, if the FANUC robot teaching device that controls the robot suddenly cannot enter the system, the screen is black, the screen is garbled, the buttons are unresponsive, and so on, what should we do? The editor has compiled a practical example of Frank's mechanical arm teaching box maintenance for you. Please read it carefully!

Let's first look at the operation keys of the FANUC robot teaching device:

When you press the operation, if the FANUC robot teaching device buttons do not respond, it can be basically determined as "FANUC robotic arm teaching box buttons are unresponsive." We should:

- Look for the cause

1. Physical wear and tear: Long-term use or improper operation may lead to physical wear and tear on the button surface, which in turn affects the sensitivity and accuracy of the FANUC industrial robot teaching box buttons.
2. Circuit failure: Aging, damage, or poor contact of internal circuit components of the FANUC robot teaching device can lead to abnormal transmission of button signals, resulting in unresponsive buttons.
3. Power supply issues: Abnormal 24V power supply, such as unstable voltage or power board failure, can lead to unresponsive buttons on the FANUC robotic arm handheld programmer.

In response to the above failure causes, we can take the following maintenance methods:

1️⃣ Check for physical wear and tear:

   - First, observe whether there are obvious signs of wear on the button surface, such as scratches, depressions, etc.

   - If severe wear is found, try to gently wipe the button surface with a soft cloth to remove impurities and dirt. However, please note that physical wear is generally difficult to restore through simple cleaning and may require replacing the Frank mechanical arm teaching box button board or button membrane.

2️⃣ Check circuit connections:

   - Dismantle the FANUC robot teaching programmer shell and check whether the button board and its connecting ribbon cable have looseness, breakage, or corrosion.

   - If necessary, unplug the ribbon cable and reconnect it to ensure a solid and reliable connection.

3️⃣ Comprehensive detection and maintenance:

   - If the above methods cannot solve the problem, it is recommended to conduct a comprehensive fault detection. You can use professional test software (such as hstest.apk) to test the FANUC industrial robotic arm teaching device to determine the specific location of the fault.

   - Perform corresponding maintenance or replacement work according to the test results. If the Frank robot teaching box button board is severely damaged, consider replacing the entire button board; if there are also problems with the display screen or other components, they should be repaired or replaced at the same time.

When you operate the robot, you open the FANUC robot teaching device and find that there is no picture at all, and the entire screen is white, which can be basically determined as "FANUC teaching programmer cannot enter the system." We should:

- Look for the cause

  1️⃣ Display driver circuit failure: Long-term use or external impact may cause the display driver circuit of the FANUC robotic arm teaching box to be damaged, affecting the normal display of the screen.

  2️⃣ Communication line issues: If there is a fault in the communication line between the Frank robot teaching device and the robot body, it will affect data transmission, causing the teaching device to be unable to enter the system.

  3️⃣ Internal software errors: Program crashes, system file corruption, and other internal software issues may prevent the FANUC robotic arm teaching box from starting.

In response to the above failure causes, we can take the following maintenance methods:

1️⃣ Check communication lines:

   - Carefully check the communication line between the FANUC robotic arm teaching programmer and the robot body to ensure that the connection is solid and undamaged.

   - If the line is found to be loose or damaged, replace it with a new FANUC robot teaching device communication line in a timely manner.

2️⃣ Check display driver circuit:

   - First, check whether there are obvious signs of damage to the display driver circuit of the FANUC industrial robotic arm teaching device, such as charring or breakage.

   - If abnormalities are found, try to replace or repair the relevant circuit components to ensure the normal operation of the FANUC robot teaching device circuit.

3️⃣ Check and repair internal software:

   - Try to reinstall or update the software system of the FANUC robotic arm teaching box to restore its normal function.

   - If the software problem of the FANUC robot teaching programmer is complex, you can contact the Subei Robotics maintenance service provider for repair. After all, they have a maintenance team and advanced testing equipment, which can quickly diagnose and solve robot failures, and through a strict testing process, ensure that every robot is in working condition, thereby effectively ensuring the stable improvement of the delivery rate.

The robot teaching device is an important tool for robot motion programming. It can record the robot's motion trajectory through manual operation of the robot and convert it into the robot's programming language. During operation, the teaching device can also perform real-time monitoring and precisely control parameters such as the position, speed, and acceleration of the industrial manipulator.

So, if a FANUC robot teaching device fails, do not procrastinate. To ensure smooth production, it is necessary to conduct a "look, listen, ask, and feel" for the mechanical arm teaching box. For complex maintenance issues, do not attempt to solve them yourself, as this may cause secondary damage.