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No. SX-DSV02310 - 163 -
R2.0 Motor
Business
Division,
Appliances Company, Panasonic Corporation
8-2 RTEX communication warnings
Warning
code
(decimal)
Designation
C0h
RTEX continuous communication error warning
C1h
RTEX accumulated communication error warning
C2h
RTEX Update_Counter error warning
8-2-1 RTEX continuous communication error warning (WngC0h)
This warning will occur when the No. of continuously detected reading errors (CRC errors) of the data delivered to the
local node reaches the setting value of Pr.7.26 (RTEX successive communication error warning setting).
The detecting timing and corrective action are basically the same as those for Err. 83.0 (RTEX continuous
communication error).
When Pr.7.26 is 0 or when bit 9 of Pr.6.38 (Attribute C) is 0, this warning is disabled.
Cause
• The No. of detected continuous reading errors (CRC errors) of the data
delivered to the local node reaches the setting value of Pr.7.26 (RTEX
successive communication error warning setting).
Detecting timing
• When RTEX communication status is RUNNING.
• When received data is read at the communication cycle.
Internal process upon
detecting error
• Discard the received data.
• Use the previously received normal data for processing.
• Return Byte 1 of response as FFh.
• RTEX communication keeps RUNNING status.
• Synchronization between communication and servo is kept established.
▪
Because the communication continues, if the normal reception is possible
after occurrence of warning, commands such as alarm clear can be received.
Action
• Check the communication cable for excessive noises.
• Check the communication cable for length, layout arrangement, and
connections.
• Check that the communication cable is category 5-e or better shielded twisted
pair cable (STPC) specified by TIA/EIA-568.
• Replace the cable with a new one as necessary.
• Attach the ferrite core to the communication cable.
• Replace the servo driver as necessary.
Warning clearing
procedure after removal
of cause
• Disable this warning and then execute alarm clear.
• Execute the power reset or reset command to reboot the system.