KUKA KR CYBERTECH nano-2 maintenance troubleshooting

Start the robot and move A5 back and forth within ± 20 ° 2 to 3 times, then move A5 to the 0 ° position and fix it.

Measure the frequency of the toothed belt using a frequency meter. Place the sensor 2 to 3 mm away from the vibrating toothed belt and read the value. The target frequency is 180 ± 5 Hz.

If the frequency does not meet the standard, slightly loosen or tighten the adjustment screw and repeat the measurement until the target value is reached.

After reaching the target value, tighten 2 M3x6-10.9-A2K TORX round head screws step by step.

Check the foam gasket in the cover and replace it if it is damaged. Replace the cover and secure it with 9 new M4x14-10.9 hex screws and locking washers.

Mastering A5 and observing anomalies during T1 trial operation.

Details of oil change and cable group lubrication

When changing the oil, A1 uses an oil pump with a M18x1.5 magnetic plug torque of about 20 Nm; A2 uses an M18x1.5 plug torque of about 20 Nm; A3 uses an M18x1.5 plug torque of about 20 Nm. Before draining the oil, release the pressure first, measure the discharge amount after draining, and the filling amount should be based on the actual discharge amount. When lubricating cable group A1, first remove 5 M6x8-10.9-A2K round head screws, remove the cover and brush strip; Use a brush to apply Optitemp RB2 to the outside of the hose, the contact surface with the base, and the inside of the cover; After reassembly, wipe off excess grease and move A1 to evenly distribute the grease. Lubricating grease is about 0.3 kg, do not exceed it to avoid adsorbing dust.

Electrical interface and installation transportation

The connection cables of KR C5 micro include motor cable XD30, data cable XF31, and grounding conductor. Motor connector 1: XD20.1-XD30, connecting A1-A3 with brake included; Motor connector 2: XD20.2-XD30, connect A4-A6 with brake included. Data cable XF21-XF31. Grounding conductor 4 mm ², M8 ring terminal. The KR C5 S uses 6 motor connectors XD20.1... XD20.6-XD30, 2 brake connectors XD10.1/XD10.2-XD30, data cables XF21-XF31, and a grounding conductor of 16 mm ². The connector must be locked, and there is a "click" sound when the motor connector is locked, and the red locking ring is not visible. During installation, the transportation positions are A1 0 °, A2-120 °, A3 155 °, A4 0 °, A5 80 °, A6 0 °. Use slings or forklifts, and unauthorized lifting is prohibited. Install base S260, 4 M12x40-10.9 bolts, and tighten again after 100 hours. The machine frame installation uses 4 M12x40-10.9 bolts. After installation, enter the installation location, default ground. If used for walls or ceilings, the tilt angle must be entered correctly, otherwise unexpected movement or overload may occur.

Fault Handling Checklist

Emergency stop, power off, padlock, and power check first.

Check the alarm: motor, brake RDC、 Data cables and safety circuits.

Mechanical inspection: oil level, oil leakage, toothed belt, cable assembly, hose, base bolt.

Check parameters: load, center of gravity, inertia, installation angle, program magnification.

After replacement: Mastering, T1 testing, stop distance retest.

Record: Fault time, frequency, axle number, temperature, load, maintenance content.

The reliability of KUKA KR CYBERTECH nano-2 is based on standardized maintenance. By controlling the stopping distance, A5 toothed belt, gear oil, cable lubrication, zero point calibration, and base bolts, most on-site faults can be detected in advance. For engineers, the true idea of "replacing discontinued modules" is not to wait until they break before replacing them, but to use verifiable parameters and standard steps to turn every maintenance into a traceable quality record.