YASKAWA Varispeed E7 Instruction Manual And Parameter Description page 217

The ENTER command is enabled by writing 0 to register number 0900H or 0910H.
Register No.
0900H
0910H
INFO
Error Codes
The following table shows MEMOBUS communications error codes.
Error Code
01H
02H
03H
21H
22H
23H
24H
Slave Not Responding
In the following cases, the slave will ignore the write function.
When a communications error (overrun, framing, parity, or CRC-16) is detected in the command message.
•
When the slave address in the command message and the slave address in the Inverter do not agree.
•
When the gap between two blocks (8 bit) of a message exceeds 24 bits.
•
When the command message data length is invalid.
•
Application Precautions
INFO
-80
6
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Write constant data to EEPROM, RAM is refreshed
Constant data are not written to EEPROM, but refreshed in RAM only.
The maximum number of times you can write to EEPROM is 100,000. Do not frequently execute ENTER
commands (0900H) that write into EEPROM.
The ENTER command registers are write-only. Consequently, if these registers should be read out, the regis-
ter address will become invalid (Error code: 02H).
Function code error
A function code other than 03H, 08H, or 10H has been set by the PLC.
Invalid register number error
• The register address you are attempting to access is not recorded anywhere.
• With broadcast sending, a start address other than 0001H, or 0002H has been set.
Invalid quantity error
• The number of data packets (register content) being read or written is outside the range of 1 to 16.
• In write mode, the number of data bytes in the message is not No. of packets x 2.
Data setting error
• A simple upper limit or lower limit error has occurred in the control data or when writing con-
stants.
• When writing constants, the constant setting is invalid.
Write mode error
• Attempting to write constants to the inverter during operation.
• Attempting to write via ENTER commands during operation.
• Attempting to write constants other than A1-00 to A1-05, E1-03, or o2-04 when warning alarm
CPF03 (defective EEPROM) has occurred.
• Attempting to write read-only data.
Writing during DC bus undervoltage (UV) error
• Writing constants to the inverter during UV (DC bus undervoltage) alarm.
• Writing via ENTER commands during UV (DC bus undervoltage) alarm.
Writing error during constants processing
Attempting to write constants while processing constants in the Inverter.
If the slave address specified in the command message is 0, all slaves execute the write function, but do not
return response messages to the master.
Contents
Contents