Siemens A01428

What the Fault Means

Alarm: Topology: Incorrect connection used

Likely causes

• The topology comparison has detected differences in the actual and target topologies in relation to one component
• For a component, another connection was used
• The different connections of a component are described in the alarm value
• Alarm value (r2124, interpret hexadecimal): ddccbbaa hex: dd = connection number of the target topology (%4) cc = connection number of the actual topology (%3) bb = component class (% 2) aa = component number (%1) Note: Component class and connection number are described in F01375

Solution and Safe First Checks

1. reinsert the DRIVE-CLiQ cable to the component (correct the actual topology).
2. adapt the project/parameterization in the commissioning software (correct the target topology).
3. automatically remove the topology error (p9904).

Safety: do not work inside the panel without isolating the power; if unsure, consult a qualified technician.

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