25110

Power Down System Safely

Navigate to HMI → Machine → Switch Off, wait for all drives to reach standstill, then disconnect 24V DC supply.

Never disconnect DRIVE-CLiQ cables under power - this can damage components

Inspect DRIVE-CLiQ Cable Connections

Check all green DRIVE-CLiQ connectors on Control Unit CU320-2 and Motor Modules for proper seating, damaged pins, or contamination.

Look for the green locking tabs - they should click audibly when properly seated

Verify Cable Integrity

Examine DRIVE-CLiQ cables for kinks, cuts, or excessive bending near connectors. Replace any damaged cables with genuine Siemens parts.

DRIVE-CLiQ cables have minimum bend radius requirements - maintain at least 5x cable diameter

Test Communication

Power up system and check HMI → Diagnostics → Hardware → DRIVE-CLiQ topology display to verify all components are recognized.

Access DRIVE-CLiQ Topology View

Navigate to HMI → Diagnostics → Hardware → DRIVE-CLiQ to identify which component shows communication fault or missing status.

Red X or missing component icons indicate failed hardware

Check Component LED Status

Examine LED indicators on suspected Motor Module or Sensor Module - solid red LED indicates internal hardware fault.

Do not attempt to repair DRIVE-CLiQ components - they require factory service

Perform Component Isolation Test

Temporarily disconnect suspected component from DRIVE-CLiQ chain and check if alarm clears on remaining topology.

Always maintain proper DRIVE-CLiQ termination when isolating components

Replace Faulty Component

Install replacement component with matching firmware version and perform automatic device replacement via HMI → Commissioning → Drive → Replace Device.

Identify EMI Sources

Survey area for welding equipment, large contactors, radio transmitters, or other high-power switching devices operating near DRIVE-CLiQ cables.

Alarm 25110 occurring during specific machine operations often indicates EMI correlation

Check Cable Routing and Shielding

Verify DRIVE-CLiQ cables are routed away from power cables and properly shielded. Ensure shield connections are intact at both ends.

Maintain minimum 200mm separation between DRIVE-CLiQ and high-power cables

Verify Grounding System

Check cabinet grounding, ensure Control Unit mounting provides good electrical contact, and verify equipotential bonding between components.

Use digital multimeter to verify <0.1 ohm resistance between component chassis grounds

Install EMI Suppression

Add ferrite cores to DRIVE-CLiQ cables near interference sources or install EMI filters on suspected interference-generating equipment.

Compare Hardware vs. Project Configuration

Open STARTER project and compare configured DRIVE-CLiQ topology under Project → Insert Drive Object with actual hardware installation.

Component serial numbers must match between STARTER configuration and physical hardware

Verify DRIVE-CLiQ Addressing

Check parameter P0978 (DRIVE-CLiQ component number) matches the configured topology sequence in each Motor Module.

Incorrect P0978 values can cause multiple drives to conflict on DRIVE-CLiQ network

Check Network Termination

Ensure DRIVE-CLiQ chain has proper termination - last component in chain should have terminating resistor or unused port terminated.

Missing termination causes signal reflections and intermittent communication errors

Perform Automatic Configuration

Use HMI → Commissioning → Drive → Automatic Configuration to let system auto-detect and configure DRIVE-CLiQ topology.