FREQROL Inverter Driver
GP-Pro EX Device/PLC Connection Manual
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8
Error Messages
Error messages are displayed on the Display screen as follows: "No. : Device Name: Error Message (Error
Occurrence Area)". Each description is shown below.
Display Examples of Error Messages
"RHAA035:PLC1: Error has been responded for device write command (Error Code: 2 [02H])"
Error Codes Unique to External Device
Error Messages Unique to External Device
Item
Description
No.
Error number
Device Name
Name of the External Device where an error has occurred. Device/PLC name is the title of
the External Device set with GP Pro-EX. (Initial value [PLC1])
Error Message
Displays messages related to an error that has occurred.
Error Occurrence Area
Displays the IP address or device address of the External Device where an error has
occurred, or error codes received from the External Device.
• IP address is displayed as "IP address (Decimal): MAC address (Hex)".
• Device address is displayed as "Address: Device address".
• Received error codes are displayed as "Decimal [Hex]".
• Refer to your External Device manual for details on received error codes.
• Refer to "Display-related errors" in "Maintenance/Troubleshooting Guide" for details on the
error messages common to the driver.
Error Code
Description
H0
Computer NAK error
H2
Sum check error
HA
Mode error
HB
Instruction code error
HC
Data range error
Error No.
Error Message
Description
RHxx128
(Node Name): Invalid Parameter is used
(Address: (Device Address))
Displayed when Parameter 700-799 and
906-916 are used.
RHxx129
(Node Name): The Setting value for
(Device Address) is illegal. Please check
the inverter manuals.
Displayed when the out-of-range value is
written in the External Device.