Actual Values; Exception Codes - ABB ACS550-01 User Manual

ACS550 User's Manual

Actual Values

The contents of the register addresses 40005...40012 are
• Specified using parameters 5310...5317.
• Read-only values containing information on the operation of the drive.
• 16-bit words containing a sign bit and a 15-bit integer.
• When negative values, written as the two's complement of the corresponding
positive value.
• Scaled as described earlier in "Actual Value Scaling".

Exception Codes

Exception codes are serial communication responses from the drive. The ACS550
supports the standard Modbus exception codes defined below.
Exception
Code
01
02
03
For the Modbus protocol, a drive parameter in group 53 holds the most recent
exception code:
Code
5318
Name
ILLEGAL FUNCTION
ILLEGAL DATA ADDRESS
ILLEGAL DATA VALUE
Description
EFB PAR 18
Holds the most recent exception code.
Unsupported Command
The data address received in the query is not allowable. It is not
a defined parameter/group.
A value contained in the query data field is not an allowable
value for the ACS550, because it is one of the following:
• Outside min. or max. limits.
• Parameter is read-only.
• Message is too long.
• Parameter write not allowed when start is active.
• Parameter write not allowed when factory macro is selected.
and are:
ACTUAL VALUES
Meaning
Embedded Fieldbus
167