ABB RDNA-01, User Manual

Page: 58 / 88

Communication
58
Note: If the BASIC SPEED CONTROL, EXTENDED SPEED
CONTROL or the EXTENDED SPEED CONTROL PLUS DRIVE
PARAMETERS assembly is used, it must be ensured that the
fieldbus is selected as the drive control source and fieldbus
specific (Generic Drive profile) Control/Status Word format is
selected instead of ABB Drives profile.
Note: With ACx550 the Ctrl From Net bit reflects the status of
NetCtrl. With ACS800 it indicates if any of the control word bits
can be used to control the drive. For example, if 16.04 FAULT
RESET SEL is COMM, the bit is always fixed to 1.
ABB Drives assembly
ABB Drives assembly allows the use of the ABB Drives
communication profile. The format of the output assembly is:
The format of the input assembly is:
Instance 100
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0 Control Word (Low Byte)
1 Control Word (High Byte)
2 Set Speed (Low Byte), unscaled
3 Set Speed (High Byte), unscaled
Instance 101
Byte Bit 7
Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0 Status Word (Low Byte)
1 Status Word (High Byte)
2 Actual Speed (Low Byte), unscaled
3 Actual Speed (High Byte), unscaled