A01428 — Topology: Incorrect connection used

A01428 — Topology: Incorrect connection used is reported by the drive's topology comparison. For one component, another connection was used than the one assigned to it in the target topology, i.e. the actual topology (how the DRIVE-CLiQ components are actually cabled) and the target topology (the project) differ regarding this component's connection. The alarm value identifies the component and both connection numbers. The drive system is no longer booted. In this state, the drive control (closed-loop) cannot be enabled.

• The topology comparison has detected differences between the actual and the target topology in relation to one component.
• For this component, another connection was used than the one the project expects.

1. Identify the affected component and both connection numbers from the alarm value in r2124, interpreted hexadecimal (see the alarm value decoding below); component class and connection number are described in F01375.
2. Correct the actual topology: reinsert the DRIVE-CLiQ cable to the affected component so that it is connected as projected.
3. Or correct the target topology: adapt the project/parameterization in the commissioning software so that it matches the actual cabling.
4. Or remove the topology error automatically with p9904 (Topology comparison acknowledge differences).
5. For improved diagnostics capability, e.g. a setpoint/actual value comparison, use “Topology --> Topology view” in the commissioning software.

The message value reads: Component: %1, %2, connection (actual): %3, connection (target): %4. The alarm value is stored in r2124 and is to be interpreted hexadecimal in the format ddccbbaa:

• dd — connection number of the target topology (%4)
• cc — connection number of the actual topology (%3)
• bb — component class (%2)
• aa — component number (%1)

Component class and connection number are described in F01375.

• r2124 (Alarm value): read the alarm value of this alarm here, interpreted hexadecimal as ddccbbaa, to determine the component number, the component class and the actual and target connection numbers.
• p9904 (Topology comparison acknowledge differences): use this parameter to remove the detected topology difference automatically, instead of reinserting the cable or changing the project.

No separate acknowledgement action is required for this alarm; it goes when the difference between actual and target topology has been dealt with — by reinserting the DRIVE-CLiQ cable, by adapting the project/parameterization in the commissioning software, or by removing the topology error automatically with p9904. Closed-loop drive control can only be enabled again once this alarm has been cleared.