03.99
Diagnosis and troubleshooting
Siemens AG
6SE7087-6NX84-0GB0
SIMOVERT MASTERDRIVES
Operating Instructions
6-1
6
Diagnosis and troubleshooting
6.1
Evaluation of hardware diagnostics
On front of the optional CBL board, there are two groups of LEDs.
Three LEDs display the global status of CBL and four LEDs give
information on the current status of the CC-Link interface.
The following LEDs are provided:
♦
LED_GREEN
Telegram traffic via CC-Link
♦
LED_YELLOW
Data exchange with the basic unit
♦
LED_RED
CBL on
♦
RD_LED
Detecting the carrier on the link
♦
SD_LED
CBL transmitting data
♦
ERRL
Data transmission errors (CRC) or hardware faults
♦
RUN
Receive refresh and polling frames normally
LED
Status
Diagnostic information CBL
Red
Flashing
CBL in operation; voltage supply on
Yellow
Flashing
Fault-free data exchange with the basic unit
Green
Flashing
Fault-free process-data transfer via the CC-Link
Table 6-1
Status display of the CBL
LED
Status
Diagnostic information CC-Link
RDLED
Continuously lit
Detecting the carrier on CC-Link
SDLED
Continuously lit
CBL is transmitting
RUN
Continuously lit
Receive refresh and polling telegrams;
data transfer
ERRL
OFF
No data transmission errors (CRC);
no hardware error
Table 6-2
Status display CC-Link interface
LED displays
green
yellow
red
RD_LED
(green)
SD_LED
(green)
ERRL
(yellow)
RUN
(green)
Status display:
o.k.
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