Lenze EtherCAT Controller-based Automation - Manual (Page 177)

Lenze · Controller-based Automation · EtherCAT® Communication Manual · DMS 6.4 EN · 04/2014 · TD17
177
12 Diagnostics
12.5 Error scenarios
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12.5.3 Messages: WKC Error / Not all slaves "Operational" / SyncManager Watchdog
In the "Operational" state, the process data are exchanged cyclically.
If a slave does not accept the cyclical frame (WKC is not increased), this error is caused.
Cause • The bus cable between two EtherCAT nodes has been unplugged.
• The node at position X is deenergised.
• A slave no longer receives cyclical frames so that the watchdog determined by the device
description is triggered. This message will only be transmitted when the connection to
the master has been re-established.
Error message EtherCAT_Master: Not all slaves 'Operational' (repeated 100 times)
EtherCAT_Master: Cyclical command WKC error (repeated 100 times)
EtherCAT_Master: Not all slaves 'Operational' (repeated 10 times)
Lenze_EPM_T130_V10_18 (1002): Communication to device interrupted
EtherCAT_Master: Cyclical command WKC error (repeated 10 times)
EtherCAT_Master: Not all slaves 'Operational' (repeated 1 times)
EtherCAT_Master: Cyclical command WKC error (repeated 1 times)
Remedies Correct bus topology and Restarting the EtherCAT fieldbus ( 159) .