ABB ACS550-02 User Manual page 160

158
The CONTROL WORD and the STATUS WORD – Standard Profile (ABB DRIVES)
CONTROL WORD. The contents of the register address 40001 (
the principal means for controlling the drive from a fieldbus system. The fieldbus
master station sends the
states according to the bit-coded instructions in the
CONTROL WORD
• The drive is in remote (
• The serial communication channel is defined as the source for controlling
commands (set using parameters 1001
and 1102
• The serial communication channel used is configured for Standard Modbus:
Parameter 9802
• Parameter 5305
The following table and the state diagram later in this sub-section describe the
CONTROL WORD
Bit
0
1
2
3
4
5
Start-Up
CONTROL WORD
requires that:
) control.
REM
1/ 2 ).
EXT EXT SEL
COMM PROT SEL
EFB CTRL PROFILE
content.
Commanded
Value
State
1
READY TO OPERATE
0
EMERGENCY OFF
1
OPERATING
0
EMERGENCY OFF
1
OPERATING
0
EMERGENCY STOP
1
OPERATION
ENABLED
0
OPERATION
INHIBITED
1
RFG OUT ENABLED
0
RFG OUT HOLD
to the drive. The drive switches between
CONTROL WORD
1
EXT COMMANDS
= 1 ( ).
STD MODBUS
= 0 ( )
ABB DRIVES
40001
CONTROL WORD
Comments
Drive ramps to stop according to parameter 2203
1.
TIME
Normal command sequence:
• 1
OFF ACTIVE
• , unless other interlocks (
READY TO SWITCH ON
are active.
OFF2 inactive
Drive coasts to stop.
Normal command sequence:
• 2
OFF ACTIVE
•
SWITCHON INHIBITED
OFF3 inactive
Drive ramps to stop according to parameter 2205
2.
TIME
Normal command sequence:
• 3
OFF ACTIVE
•
SWITCHON INHIBITED
Enter (Note that also the Run enable
OPERATION ENABLED
signal must be present on a digital input – see parameter
1601 ).
RUN ENABLE
Inhibit operation. Enter
OPERATION INHIBITED
Unused.
Normal operation.
Enter
RAMP FUNCTION GENERATOR
Halt ramping (Ramp Function Generator output held)
) is
CONTROL WORD
. Using the
, 1002 2
EXT COMMANDS
DECELER
2, 3)
OFF OFF
DECELER
:
ACCELERATOR ENABLED