ABB ACS 400 User Manual page 153

Example on Using the Control Word
The following example shows how to use the Control Word to start the drive. When the power is
connected for the first time, the state of the drive (see the state machine in Figure 58) is
. Control Word is used to step through the state machine states until
TO SWITCH ON
is reached, meaning that the drive is running and follows the given reference.
Table 23 Using the Control Word.
Step 1 CW = 0000 0000 0000 0110
Step 2
Step 3 CW = 0000 0000 0000 0111
Step 4 CW = 0000 0000 0000 1111
Step 5 CW = 0000 0000 0010 1111
Step 6 CW = 0000 0000 0110 1111
This example assumes that the ACS 400 is in remote control, that external control place 1 (EXT1)
is the active control place (as selected by parameter 1102), and that EXT1 start and stop
commands are received through serial communication (parameter 1001).
142
Control Word Value
bit 15 bit 0
http://nicontrols.com
Description
When this value is written, the drive state
changes to
READY TO SWITCH ON
Wait at least 100 ms before proceeding.
When this value is written, the drive state
changes to
READY TO OPERATE
When this value is written, the drive starts,
but will not accelerate. Drive state changes
to .
OPERATION ENABLED
When this value is written, the ramp
function generator (RFG) output is
released. Drive state changes to
.
ACCELERATOR ENABLED
When this value is written, the ramp
function generator (RFG) input is released.
The drive state changes to
drive will accelerate to the given reference
and will follow the reference.
NOT READY
state
OPERATING
.
.
:
RFG
. The
OPERATING
ACS 400 User's Manual