User manual

Chapter 7 Troubleshooting| CME-PD01
7-2 Revision October 2006, 2006PDD23000013
 SP LED
State Indication Corrective Actions
LED is off No power
1. Verify that the power supply of CME-PD01
2. Check whether the power supply is
connected and that power is applied to the
CME-PD01 through the connector
Flashing Red
LED
CRC check error
Check if the communication setting in VFD-E is
(9600, <8,N,2>, RTU)
Red LED
Connection failure, or no
connection
1. Check whether the connection between the
VFD-E and RS485 of CME-PD01 is correct
2. Re-connect and ensure that the wire
specification is correct
Flashing
Green LED
AC Drive returns error
code
1. Check the AC Drive type and version.
2. Check the PLC program, and ensure the
communication address in CME-PD01 is
correct.
Green LED Operating normally
NOTE
If both SP LED and NET LED are in steady orange, it indicates that CME-PD01 is in “test mode”.
Please do not set the communication address of CME-PD01 to 0XFF at this time. Be sure to set
it to other value and re-power on the CME-PD01.
7.2 Diagnostic Data
CME-PD01 provides 16 bytes diagnostic data when the abnormal communication occurs or
parameter “LossSPComTreat” is set to “Continue data exchange and report alarm”. It includes 6
bytes standard diagnostic data and 10 bytes device related diagnostic data. The following table
shows the meanings of the 16 bytes:
Bytes 1-6 Byte 7 Byte 8 Byte 9 Bytes 10-16
Standard
diagnostic data
Length in bytes
SP
communication
status
Error code Reserved
Byte 7 indicates the length of device related diagnostic data, including itself. So if byte 7 is 10 (0Ahex),
it indicates it has 10 bytes (including byte 7) for the device related diagnostic data.
Byte 8 indicates the SP communication status when the error occurs, and the valid value should be
shown as follows: