32
Table 4. The Control Word for the ABB Drives communication
profile. The upper case boldface text refers to the states shown in
Figure 1.
Bit
Name
0
OFF1_
CONTROL
1
OFF2_
CONTROL
2
OFF3_
CONTROL
3
INHIBIT_
OPERATION
4
RAMP_OUT_
ZERO
Communication profiles
Value
1
Proceed to READY TO OPERATE.
0
Stop along currently active deceleration ramp.
Proceed to OFF1 ACTIVE; proceed to READY TO
SWITCH ON unless other interlocks (OFF2, OFF3)
are active.
1
Continue operation (OFF2 inactive).
0
Emergency OFF, coast to stop.
Proceed to OFF2 ACTIVE, proceed to SWITCH-ON
INHIBITED.
1
Continue operation (OFF3 inactive).
0
Emergency stop, stop within time defined by drive
parameter. Proceed to OFF3 ACTIVE; proceed to
SWITCH-ON INHIBITED.
Warning: Ensure motor and driven machine can be
stopped using this stop mode.
1
Proceed to OPERATION ENABLED.
Note: Run enable signal must be active; see drive
documentation. If the drive is set to receive the Run
enable signal from the fieldbus, this bit activates the
signal.
0
Inhibit operation. Proceed to OPERATION
INHIBITED.
1
Normal operation. Proceed to RAMP FUNCTION
GENERATOR: OUTPUT ENABLED.
0
Force Ramp Function Generator output to zero.
Drive ramps to stop (current and DC voltage limits in
force).
STATE/Description