4 PROFINET
Troubleshooting
Lenze · Inverter i550 - Cabinet · Ethernet Manual · 0.1 EN · 12/2015 17
4.8 Troubleshooting
4.8.1 PROFINET LED status display
4.8.2 PROFINET specific messages
PROFINET watchdog expired (Cyclic communica-
tion connection interrupted).
PROFINET PDO mapping error (fault with cyclic da-
ta configuration)
PROFINET communication stack initialization error
(wrong station name / IP address during initializa-
tion)
PROFINET invalid cyclic data (IO data marked bad)