Siemens SIMOVERT MASTERDRIVES Operating Instructions Manual page 64

Diagnosis and troubleshooting
Case 10
6-6
LED Status
ERRLED Flashing
Table 6-15 Fault display during operation: CRC error at CC-Link
Diagnostic information CC-Link
CBL detects data communication errors (CRC
error) at data transmission!
Check:
•
Shield connection of the cable at housing of
CU and at all CC-Link stations (EMC
faults!)
•
Check cable length of CC-Link bus
according to the data transmission rate!
6SE7087-6NX84-0GB0
Operating Instructions SIMOVERT MASTERDRIVES
03.99
Siemens AG