03.99
Diagnosis and troubleshooting
Siemens AG
6SE7087-6NX84-0GB0
SIMOVERT MASTERDRIVES
Operating Instructions
6-3
Diagnostic steps:
LED
Status
Diagnostic information CBL
Red
ON or OFF
Yellow
-
Green
-
CU, Tech-board or CBL is defective. Error
occured on CBL
Check:
•
Connection between CBL and other boards
•
Restart converter with power-down /-up
•
Earth/protective conductor (EMC-faults)
Table 6-4
Fault display: Faults on CBL
LED
Status
Diagnostic information CBL
Red
Flashing
Yellow
OFF
Green
OFF
CU, Tech board or CBL is defective.
Communication error between base board and
CBL
Check:
•
Connection between CBL and other boards
•
Restart converter with power-down /-up
•
Earth/protective conductor (EMC-faults)
Table 6-5
Display during operation: Communication error at DPRAM
LED
Status
Diagnostic information CBL
Red
Flashing
Yellow
OFF
Green
Continuously lit
CBL is waiting for start of parameterization /
initialization by the converter / inverter. This
sequence is automatically started by CU after
power-up and re-parameterizing.
CBL will stay in this status for some seconds till
CU is initialized.
Table 6-6
Display during operation: CBL is waiting for parameterization
LED
Status
Diagnostic information CC-Link
Red
Flashing
Yellow
Continuously lit
Green
OFF
CBL is waiting for completion of
parameterization / initialization by the
converter / inverter.
Normally this state is so fast handled, that this
LED status can’t be seen.
Table 6-7
Display during operation: CBL is waiting for acknowledge of
parameterization
Case 1
Case 2
Case 3
Case 4
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