KUKA KR C4 Midsize Assembly Guide

Assembly and initial power on: Follow the sequence to avoid "jumping steps"

Before assembly, the controller must be powered off, have no cable connections, the cabinet door must be closed, the cabinet must be upright, and an anti tipping bracket must be installed. When lifting, use 4 M10 lifting rings with a recommended carrying capacity of 230 kg, and the lifting rings must be fully screwed in. When handling with a forklift, insert the forks into the bottom or fork slots of the standard cabinet to avoid collisions; When configuring with transformers or casters, operate according to the corresponding fork in position. Casters are only used for short distance rolling within the cabinet row and cannot be transported over long distances, let alone towed by vehicles.

The recommended power on process is as follows: visually inspect the controller and mechanical body; Confirm no condensation; Install the controller and check if the fuse, contactor, and board are securely fastened; Connect motor cables, data cables, external shaft cables, and peripheral cables; Plug in smartPAD; Connect 16 mm ² PE equipotential wire; Connect X1 power supply; Insert the X305 battery connector properly; Configure and connect X11; If the system configuration changes, reconfigure it using WorkVisual; Enter startup mode; Check safety equipment; Configure I/O; Check machine data; Perform no-load mastering; Install tools and master with load; Check software limit; Calibration tools and bases; Input load data.

The startup mode must be cautious. This mode will disable external security devices and simulate input states such as external E-STOP inactivity, security door open, and no security stop request. Warning tapes, fences, or signs must be set up during use to ensure that no one is in the danger zone. The startup mode is only used for debugging and fault location, and cannot be used as a production mode.

Module replacement: Similar to replacing discontinued modules, first confirm compatibility

The module replacement of KR C4 midsize cannot be solely based on its appearance. If KCB, KSB, and KEB devices are of the same type, they can be replaced; But two identical KCB components cannot be exchanged at the same time. The exchange of KSP3 × 40 is only applicable when there are already two KSP3 × 40 in the current system configuration. If changing to a different model, adding or removing devices, replacing hard drives, or installing KSS/VSS 8.2, the system must be reconfigured using WorkVisual.

After replacing the safety module, it is necessary to check the safety configuration, checksum, and safety axis monitoring function. After replacing the data cable, it is necessary to re master or perform a mastering test, otherwise incorrect position data may cause unexpected movement. After replacing the SIB, it is necessary to test E-STOP, operational safety, enabling devices, external safety stops, and safety output feedback. After any security related modifications, functional testing should be conducted and the results recorded.

Common troubleshooting: Starting from the safety chain, power chain, and communication chain

Fault 1: The controller cannot be powered on. Check the X1 power supply voltage, main switch, fuse, CCU power supply, and X305 battery connector. If the control PC does not start, check the low-voltage power supply, motherboard, fan, and power button. If the main contactor does not engage, check whether the safety chain is closed, whether the E-STOP is released, and whether the X11 external E-STOP is consistent in both channels.

Fault 2: E-STOP cannot be reset. Check the smartPAD E-STOP, external E-STOP, X11 local/external E-STOP pins, dual channel status, safety door, and operational safety confirmation. If using Ethernet safety interface, check the PROFIsafe/CIP Safety connection, input byte NHE bit, and output feedback. E-STOP not tested for more than 12 months may also affect the effectiveness of safety functions.

Fault 3: Loss of operation safety signal. Opening the safety door in automatic mode will trigger safety stop 1. When restoring, the safety gate must be closed and the dual channel confirmation button must be pressed outside the fence. The confirmation function may not be activated by default and needs to be set in the security configuration. Automatic closing of safety doors cannot replace manual confirmation.

Fault 4: The enable switch is invalid. The smartPAD enable switch has three positions: not pressed, middle position, and panic position. Only the middle position can be moved under T1/T2. If an external enable switch is connected, X11 pins 11/12, 29/30 and 13/14, 31/32 need to be wired correctly; Short circuit is required when not in use. Two enable switches should be kept in the middle position for no more than 15 seconds at the same time, otherwise a safety stop 1 will be triggered.

Fault 5: T1 speed monitoring alarm. Check program magnification, manual magnification, tool load, and motion commands. The installation speed of the flange under T1 must not exceed 250 mm/s, otherwise the safety stop 0 will be triggered. If the process requires higher speed, T2 should be used and personnel should be kept outside the danger zone.