User manual

Chapter 7 Troubleshooting| CME-PD01
Revision October 2006, 2006PDD23000013 7-3
00 – Normal
01 – CRC check error
02 – VFD-E returns error code
03 – Communication is time-out
Byte 9 indicates the error code when byte 8 is 02 (VFD-E will return error code). Refer to the Section
7.3 for the meanings of invalid code.
User can get the diagnostic data via PZD area any time. Following table is some special MODBUS
addresses that CME-PD01 provides to indicate the diagnostic status.
0x7500 0x7501 0x7502 0x7503 0x7504
Comm.
address
High
byte
Low
byte
High
byte
Low
byte
High
byte
Low
byte
High
byte
Low
byte
High
byte
Low
byte
Description
SP
Comm.
status
Error
code
Reserved (factory setting is 0)
User can get these data through “Data Output 1”, or “Data Output 2”, or “Data Output 3”, or “Data
Output 4” in parameters. For example, if “Data Output 1” is set to 0x7500, that means the diagnostic
data can be got from address 0x7500, and the return data from the 1
st
word of address 0x7500 in
PZD area is the dialogic data.
NOTE
These special addresses are read-only, it will fail if user tries to write data.
7.3 Error Codes
If there is a communication error detected between CME-PD01 and VFD-E series Drives, the error
code will be displayed on the digital keypad of VFD-E.
VFD-E can process the message from CME-PD01 if the communication setting is valid. But if the
command of message is invalid, the VFD-E will respond a report message that has error codes listed
in table below, to CME-PD01.