SKU: NXB-ROB-TBL021-004 | Version: 1.0 | Brand: NexBot Robotics
The NexBot Robotics TBL021-004 is a versatile 6-axis collaborative robot (cobot) designed for automating complex tasks in space-constrained environments where humans and robots work in close proximity. This robot arm combines a substantial 10 kg payload capacity with a compact footprint, making it suitable for a wide range of tabletop and bench-mounted applications without requiring significant facility modifications. Key to its performance is a sophisticated design that delivers exceptional precision. With a position repeatability of ±0.02 mm, the TBL021-004 ensures consistent and accurate execution of tasks, which is critical for applications such as electronics assembly, intricate material handling, and quality inspection. The robot's 850 mm reach provides a generous work envelope, allowing it to service multiple stations or handle larger workpieces within its operational area. This combination of reach and precision enables higher productivity and improved product quality. Designed for safe human-robot collaboration, this cobot features advanced, built-in force-sensing technology in all its joints. This allows the robot to detect unexpected contact and safely stop its motion, minimizing the need for extensive physical guarding and enabling more fluid interaction between operators and automation. The intuitive programming interface and lead-through teaching capabilities allow for rapid deployment and easy task programming, even for users with limited robotics experience. The TBL021-004 is an adaptable automation solution for machine tending, pick-and-place operations, packaging, and light assembly, helping to increase operational efficiency and flexibility.
To power on the NexBot Robotics TBL021-004, first turn on the main 48VDC power supply, then press the power button on the robot controller. To power off, execute a controlled stop from the teach pendant, then press the power button on the controller before switching off the main supply.
The teach pendant is the primary interface for controlling the robot. It allows for manual jogging of the arm, creating and editing programs, configuring I/O, and viewing system diagnostics. Familiarize yourself with the E-Stop button, deadman switch, and navigation menus before operation.
Before running any program, the robot must be homed to establish a known reference position for all axes. This is typically done automatically on startup or can be initiated manually from the 'Homing' or 'Calibration' menu on the teach pendant. Ensure the robot has a clear path to move all joints to their home switches.
Manual jogging allows for precise positioning of the robot arm. Select the desired axis (1-6) or coordinate system (Joint, World, Tool) on the teach pendant. While holding the deadman switch, use the directional controls to move the robot at a controlled speed.
Programs are created by recording a series of waypoints. Jog the robot to a desired position, define the point type (e.g., linear, joint), and record it. Add commands for gripper actions or logic between waypoints to build a complete automation sequence.
An accurate TCP is critical for precise operation. The TCP defines the focal point of your end-of-arm-tooling. Use the built-in TCP configuration wizard to define the X, Y, and Z offset from the robot's tool flange, as well as the tool's weight and center of gravity.
In collaborative mode, the robot's force, speed, and momentum are limited to ensure safety. Access the 'Safety Settings' menu to configure these parameters based on your application's risk assessment. These settings define the robot's behavior upon contact with an object or person.
The TBL021-004 communicates using the EtherCAT protocol, allowing for high-speed integration with PLCs and other machine controllers. The robot's position, status, and I/O can be mapped as process data objects (PDOs) for real-time external control and monitoring. Refer to the EtherCAT ESI file for detailed object mapping.
| Interval | Task | Notes |
|---|---|---|
| Daily | Visually inspect the robot arm, cabling, and end-of-arm tooling for signs of wear, damage, or loose connections. | Perform this check before the start of each shift. |
| Weekly | Check for excessive noise or vibration from any of the 6 axes by jogging them through their full range of motion at a low speed. | Listen for any grinding or whining sounds that could indicate a gearbox issue. |
| Monthly | Create a full backup of all robot programs and system configuration settings to an external storage device. | Store backups in a secure, separate location. |
| Quarterly | Check the torque of the robot base mounting bolts and the end-of-arm-tooling mounting bolts. | Follow the torque specifications outlined in the installation guide. |
| Annually | Test the functionality of the brakes on all axes. This can be done via a diagnostic routine in the system menu. | Brakes should engage immediately upon power loss or an E-Stop condition. |
| Annually | Clean the exterior surfaces of the robot arm and controller using a lint-free cloth and an approved cleaning solution (e.g., isopropyl alcohol). | Ensure the robot is powered down. Avoid spraying liquid directly into joints or connector ports, consistent with its IP54 rating. |
| Symptom | Possible Cause | Solution |
|---|---|---|
| Robot fails to power on; no status lights on controller. | No incoming 48VDC power or faulty power supply. | Verify the 48VDC power source is on and check the power cable for damage. Use a multimeter to confirm voltage at the controller's power input terminals. |
| Position Deviation Fault during operation. | Robot collided with an object, payload exceeds 10 kg limit, or a motor encoder has failed. | Check the robot's path for obstructions. Verify the defined payload weight is accurate. Re-run the calibration routine. If the fault persists on a specific axis, contact NexBot support. |
| EtherCAT communication error. | Damaged or disconnected EtherCAT cable, incorrect network configuration, or EtherCAT master issue. | Check physical cable connections. Use a cable tester to validate the cable. Verify the robot's node address is correct in the master's configuration. Cycle power on the EtherCAT master and robot. |
| E-Stop Fault is active and cannot be cleared. | An external E-Stop button is pressed, or there is a wiring fault in the safety circuit. | Check all connected E-Stop buttons to ensure they are released. Inspect the safety circuit wiring at the controller for loose or broken connections. |
| Robot movement is jerky or not smooth. | Incorrect TCP or payload settings, or internal gearbox wear. | Recalculate and update the TCP and payload weight/center of gravity. If the issue continues, run system diagnostics and contact support for possible mechanical issues. |
| Cannot achieve specified repeatability of ±0.02 mm. | Loose mounting bolts on the base or EOAT, incorrect TCP configuration, or high ambient vibration. | Re-torque all mounting bolts to specification. Perform a high-precision TCP calibration. Ensure the mounting surface is stable and isolated from sources of vibration. |
| Parameter | Value | Unit |
|---|---|---|
| Weight | 28.5 | kg |
| Material | Anodized Aluminum and ABS Plastic | |
| Voltage | 48VDC | |
| IP Rating | IP54 | |
| Country of Origin | US | |
| Protocol | EtherCAT | |
| Reach | 850 mm | |
| Payload | 10 kg | |
| Axes | 6 | |
| Repeatability | ±0.02 mm |