Yaskawa V1000-Series Option SI-EM3D/V Dual Port EtherNet Modbus TCP/IP Technical Manual - Manual (Page 32)

Error Code
Error Name
Cause
03H
Byte Count Error
• Read data or write data is greater than 16 bytes. Invalid command message quantity.
• In a write message, the “Number of Data Items” contained within the message does not equal twice the amount of data words
(i.e., the total of Data 1+ Data 2, etc.).
21H
Data Setting Error
• Control data or parameter write data is outside the allowable setting range.
• Attempted to write a contradictory parameter setting.
22H
Write Mode Error
• Attempted to write while the drive was operating to a parameter that cannot be written to during run.
• During an EEPROM data error (CPF06), the master attempted to write to a parameter other than A1-00 to -05, E1-03, or o2-04.
• Attempted to write to read-only data.
23H
DC Bus Undervoltage Write Error
• Attempted to write from the master during an undervoltage fault (Uv1).
• Attempted to execute and Enter command during Uv1.
24H
Write Error During Parameter Process
• Master attempted writing to the drive while the drive was processing parameter data.
u Control Connection Timeout
The option has a safety feature that declares a fault if communications between the master and drive is lost after the master
commanded the drive to run.
A controlled connection is defined as one in which a master commands the drive by writing to register 01H. After this write,
the option will begin a timer. The timer will be reset upon subsequent writes to register 01H. If the timer exceeds the value
programmed in drive parameter F7-16, the option will declare a BUS ERROR if the option card has an active run command
to the drive. A value of 0 in F7-16 means that the timeout is disabled.
The drive reaction to a BUS ERROR is programmable through drive parameter F6-01.
7 Modbus TCP/IP Messaging
32 YASKAWA SIEP YAICOM 17A V1000 Option Dual-Port Modbus TCP/IP SI-EM3D/V Technical Manual