03.99
Diagnosis and troubleshooting
Siemens AG
6SE7087-6NX84-0GB0
SIMOVERT MASTERDRIVES
Operating Instructions
6-5
LED
Status
Diagnostic information CC-Link
RDLED
ON
SDLED
OFF
RUNLED
OFF
ERRLED
OFF
CBL detects carrier at CC-Link but doesn’t
answer
Check:
•
Data transmission rate in P711
(same as CC-Link master?)
•
CC-Link station number in P918 (same as
configured in PLC programming software)
•
Station address already existent
•
PLC network configuration: remote device
station, occupies 1 station, with station
number like P918
Table 6-11
Fault display during operation: NO answer of CBL to CC-Link master
LED
Status
Diagnostic information CC-Link
RDLED
ON
SDLED
ON
RUNLED
OFF
ERRLED
OFF
CBL receives and sends frames
Check:
•
PLC network configuration: remote device
station, occupies 1 station, with station
number like P918
Table 6-12
Fault display during operation: NO RUNLED at CBL
LED
Status
Diagnostic information CC-Link
RDLED
ON
SDLED
ON
RUNLED
ON
ERRLED
OFF
CBL communicates correctly on CC-Link! O.k.
Check CBL status LEDs!
Table 6-13
Display during operation: CBL communicates on CC-Link
Now the three green CC-Link status LEDs continuously lit. Check the
green LED of CBL status.
LED
Status
Diagnostic information CBL
Red
Flashing
Yellow
Flashing
Green
Continuously lit
CBL communicates correctly! But there is no
data transfer with PLC cpu!
Check:
•
PLC cpu: status "STOP" or "FAULT"?
PLC cpu has to be at "RUN"!
•
PLC cpu status "RUN" and CBL is waiting
for handling the initial process sequence
by the PLC software (look for the request
and completion flag in CC-Link inverter data
structure)
Table 6-14
Display during operation: No data transfer with PLC cpu
Case 7
Case 8
Case 9
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